skip to main content

Biology

Within Science
Lab equipment in background with illustration of DNA strand, question marks, and an arrow pointing to the horn on a unicorn. Caption: We'd want to know what parts of the genome make the horn.
#askMIT
Episode 2
2 minutes 46 seconds
Grade Level: 9 - 12
Lab equipment in background with illustration of connected neurons. Caption: glia activate and help fix the neurons
#askMIT
Episode 1
2 minutes 56 seconds
Grade Level: 8 - 12
A warthog with long tusks curving towards its body and leathery skin covered in mud. Caption: we can see that each has a beauty all its own.
Nature
Season 26 / Ep 4
30 minutes 42 seconds
Grade Level: 7 - 12
Person driving a large piece of industrial farm equipment. Caption: towards managing agricultural systems
6 minutes 27 seconds
Grade Level: 7 - 12
An orange fish with yellow fins swimming up from the ocean floor from between rocks toward the viewer. Caption: in the environment they inhabit.
22 minutes 59 seconds
Grade Level: 5 - 12
Double helix of DNA with two protein strands highlighted. One strand shows proteins A and T. The other strand shows C and G. Caption "methylation". Caption: attach to a gene and block access to it,
14 minutes 13 seconds
Grade Level: 11 - 12
Coral reef with fish swimming in the vivid blue water above and two snorkelers at the water's surface. Caption: it has a lot of fish, it has less algae,
Ask a Scientist About
Episode 2
8 minutes 29 seconds
Grade Level: 5 - 8
Person sitting in front of a bookcase with books on various scientific subject. Caption: Microbes come in a huge variety of shapes--
Ask a Scientist About
Episode 3
4 minutes 44 seconds
Grade Level: 5 - 8
Man, with glasses in a suit jacket and button up shirt. Caption: the system may thrive again when it's reintroduced.
Ask a Scientist
Episode 13
42 seconds
Grade Level: 7 - 12
illustration depicts a close knitted structure of the nerves. Caption: are now hardwired in because we use them so often.
Ask a Scientist
Episode 14
1 minutes 51 seconds
Grade Level: 7 - 12
Close up of a cockroach head and body. Caption: A bunch of 'em -- American cockroaches.
Backyard Bugs & Other Arthropods
Episode 2
11 minutes 40 seconds
Grade Level: 5 - 8
Hand holding a magnifying glass pointing to something on the ground. Caption: Do you see it?
Backyard Bugs & Other Arthropods
Episode 1
13 minutes 40 seconds
Grade Level: 5 - 8
Spider with long narrow legs and a small narrow body at the center of a delicate spider web. Caption: Spiders are arachnids.
Backyard Bugs & Other Arthropods
Episode 3
14 minutes 44 seconds
Grade Level: 5 - 8
Adult man and woman with a child between them. The man and the woman are each contributing one chromosome to the child. Caption: half from your mother and half from your father.
23 minutes 3 seconds
Grade Level: 10 - 12
One central atom with two smaller atoms each attached to an electron on the outer ring of the central atom. Caption: covalently bonded to one oxygen atom,
Biology
Episode 1
40 minutes 43 seconds
Grade Level: 10 - 12
Illustration of a cell split in two that appears to be ready to eat something. Caption: T-Cells produce proteins that turn ordinary macrophages into killers
Biology
Episode 6
34 minutes 58 seconds
Grade Level: 10 - 12
Metaphase. Diagram of two structures on opposite sides of a cell. Each structure has one blue chromosome and one red chromosome. Caption: of the chromatids, the chromosomes now line up
Biology
Episode 2
41 minutes 25 seconds
Grade Level: 10 - 12
Double helix strand of DNA with protein pairs on each step. For example, AT and CG. For each pair, one letter is smaller than the other. Caption: one large, and one small--
Biology
Episode 3
37 minutes 40 seconds
Grade Level: 10 - 12
A person speaking. Illustration of a lion and a flying insect. Natural Selection. Caption: says that those individuals with beneficial traits,
Biology
Episode 4
33 minutes 32 seconds
Grade Level: 10 - 12
The skull of an animal with long, sharp teeth. Caption: And those teeth are incredibly strong.
3 minutes 54 seconds
Grade Level: 5 - 8
ASL
Closeup of tongs picking up a small piece of mold off bread contained in a glass jar. Caption: I'll take some bread mold and let it work.
3 minutes 2 seconds
Grade Level: 7 - 12
Two trucks unload garbage. Caption: Male, we're standing on about 12 meters of garbage.
Break It Down
Episode 3
22 minutes 35 seconds
Grade Level: 7 - 12
A white cow with brown spots on its head in a grassy field. Caption: began about 8,000 years ago in three separate locations.
Nature
Season 22 / Ep 11
27 minutes 52 seconds
Grade Level: 7 - 12
A man in a white lab coat looking into a microscope. Caption: Examination back in the lab can confirm the species of fern.
44 minutes 44 seconds
Grade Level: 9 - 12
Diagram showing two pairs of dogs resulting in two dogs, each with shorter legs. Caption: so dogs with shorter legs were selected and bred.:
Superlife
Episode 2
8 minutes 22 seconds
Grade Level: 10 - 12
A ship sailing through the sea. Caption: sails within the sight of the mythical Galapagos.
Butterfly Effect
Season 1 / Ep 1
25 minutes 59 seconds
Grade Level: 10 - 12
ASL
Two-line graphs. One with sharp, jagged, closely spaced peaks and valleys, the other with more gently increasing and decreasing peaks and valleys. Caption: This information is captured by the BioRadio
Career Connections
Episode 12
4 minutes 6 seconds
Grade Level: 7 - 12
A diagram shows six cell parts. Nucleus, Nuclear Membrane, Cytoplasm, Mitochondria, Vacuoles, and cell membrane.
1 minutes 12 seconds
Grade Level: 7 - 12
Cellular respiration, the process of breaking things down. Eating the food.
1 minutes 3 seconds
Grade Level: 7 - 12
A hummingbird hovering around a plant.
6 minutes 3 seconds
Grade Level: 7 - 12
A spider in the center of a web with double helix DNA strands in the background. Caption: the relationship between changes in spider genomes
2 minutes 39 seconds
Grade Level: 10 - 12
Book with handwritten text of the following hierarchy: Kingdom, Phylum, Class, Order, Family, Genus, Species. Caption: are grouped into a species.
22 minutes 12 seconds
Grade Level: 7 - 12
The head of a horse wearing a bridle, hooked to a tether secured to a post. The horse is leaning down to eat hay. Caption: These are all examples of different kinds of animals.
21 minutes 49 seconds
Grade Level: 5 - 9
Close up of a silver fish. Caption: - Ectotherms meaning their body temperature goes up and down
15 minutes 10 seconds
Grade Level: 3 - 6
Close up of a golden eagle, wings folded. Caption: Where did this golden eagle come from?
2 minutes 16 seconds
Grade Level: 7 - 12
Gloved hand reaching into a small tank to pick up a piece of white coral being grown on a disc. Caption: that fight some of the worst infectious bacteria.
Coral Comeback
Episode 9
2 minutes 13 seconds
Grade Level: 7 - 12
Extreme closeup of the cell structure of coral showing rectangular shape in the center of textured cell material. Labeled, (algae) ZooXanthellae. Caption: Zooxanthallae live inside some of the coral's cells.
Coral Comeback
Episode 3
3 minutes 14 seconds
Grade Level: 7 - 12
Closeup of a taupe-colored shellfish with eye showing, and the ocean in the background. Text on image reads, "Core Biology. Animal Sciences."
Core Biology
Episode 2
28 minutes 42 seconds
Grade Level: 10 - 12
Microscopic view of pond water teaming with life. Text on image reads, "Core Biology. Microbiology and Genetics."
Core Biology
Episode 4
29 minutes 6 seconds
Grade Level: 10 - 12
Side closeup view of a flower with yellow petals, magenta veins, and yellow stamens. Text on image reads, "Core Biology. Plant Sciences."
Core Biology
Episode 1
28 minutes 56 seconds
Grade Level: 10 - 12
Illustration of Earth. Midlatitude jet stream (cool) at the top of the globe and Subtropical jet stream (warm) close to the equator. Both move clockwise. Caption: it is a powerful band of winds known for bringing winter storms
Core Meteorology
Season 0 / Ep 1
28 minutes 25 seconds
Grade Level: 8 - 12
Closeup of a huge pile of kernels of dried corn. Caption: making corn the number-one crop by weight.
Superlife
Episode 3
6 minutes 41 seconds
Grade Level: 10 - 12
An adult cat surrounded by kittens on a linoleum floor. Caption: Other living things go through a similar process
10 minutes 50 seconds
Grade Level: 3 - 6
Pie chart diagram showing that the atmosphere contains 1/5 oxygen. Caption: Two ways of O2 entry. Caption: Oxygen makes about 1/5 of the atmosphere,
5 minutes 22 seconds
Grade Level: 7 - 12
Cart ascending roller coaster track. Caption: What are the reservoirs for the carbon cycle?
Earth Science
Episode 8
28 minutes 48 seconds
Grade Level: 6 - 9
Manatee swimming in the water. Person in scuba gear in the background. Caption: Manatees are actually incredibly graceful creatures.
Endangered Ocean
Episode 6
2 minutes 24 seconds
Grade Level: 7 - 12
Indicator dots in East Asia. Plane icon in North America with indicator dots beneath the plane. Caption: It heads to North America, where it deplanes,
5 minutes 3 seconds
Grade Level: 7 - 12
Forest of large, towering trees. Caption: Well, redwood trees live for thousands of years,
14 minutes 40 seconds
Grade Level: 7 - 12
A group of people inspecting a skeleton.
7 minutes 45 seconds
Grade Level: 10 - 12
Microscopic close up of cells. Cell walls and internal organ structure visible. Caption: It was clear that the nucleus was the critical element
Greatest Human Achievements
Episode 3
14 minutes 30 seconds
Grade Level: 9 - 12
Microscopic view of oval shaped organisms. Caption: Ciliates are a group of single-celled organisms
Hidden Biodiversity
Episode 1
3 minutes 10 seconds
Grade Level: 9 - 12
Microscopic view of oval and tubular organisms. Caption: make their own food using the light
Hidden Biodiversity
Episode 2
3 minutes 12 seconds
Grade Level: 9 - 12
Closeup view of a clear, jelly-like egg cluster underwater. Caption: The transparent eggs allow us
Hidden Biodiversity
Episode 3
3 minutes 12 seconds
Grade Level: 9 - 12
Points of light against a dark, textured background. Caption: many adaptations to support movement.
Hidden Biodiversity
Episode 4
3 minutes 12 seconds
Grade Level: 9 - 12
Microscopic view of an oval shaped organism with a mouth-like opening at one narrow end. Caption: These microorganisms are so small,
Hidden Biodiversity
Episode 5
3 minutes 12 seconds
Grade Level: 7 - 12
Closeup view of a mosquito. Caption: The adult mosquito is now ready
Hidden Biodiversity
Episode 6
3 minutes 12 seconds
Grade Level: 9 - 12
Microscope view of oval shaped organisms with globular protrusions. Caption: There are 2000 species of rotifers.
Hidden Biodiversity
Episode 8
3 minutes 12 seconds
Grade Level: 9 - 12
Microscopic view of tubular organisms with background debris. Caption: adopted by some microorganisms is gemmation.
Hidden Biodiversity
Episode 7
3 minutes 12 seconds
Grade Level: 9 - 12
Microscopic view of a transparent roundish organism with a visible face and legs. Caption: a reproductive strategy called parthenogenesis.
Hidden Biodiversity
Episode 9
3 minutes 12 seconds
Grade Level: 9 - 12
Illustration of a horse with its nose pointed towards the ground. In this position the pupil of the eye is parallel to the ground. Caption: It would enhance the effective field of view
3 minutes 43 seconds
Grade Level: 9 - 12
Cycle showing eggs leading to tadpole; tadpole developing back legs and keeping tail; tadpole developing all four legs, losing some of the tail, and looking more like a frog; to an adult frog who produces eggs. Caption: to watch what happens to the eggs.
Everyday Science for Preschoolers
Episode 1
1 minutes 52 seconds
Grade Level: Ps - 3
Illustration of neurons and dendrites exchanging signals. Caption: The addicted brain has changed.
24 minutes 5 seconds
Grade Level: 10 - 12
Illustration of teeth in the bottom jaw with braces on the surface of the teeth. The two teeth on either end of the jaw are shaded darker. Caption: that lets the new PDL hold teeth in the new position.
Science Out Loud
Episode 17
4 minutes 8 seconds
Grade Level: 9 - 12
Blurry city in background. Taste and Smell.
Human + The Future of Our Senses
Episode 4
48 minutes 15 seconds
Grade Level: 10 - 12
Illustration of a person with a large belly next to a bad of mega chips labeled party size and a stack of calories. Caption: can cause a person to be overweight,
Human Nutrition
Episode 1
28 minutes 4 seconds
Grade Level: 7 - 12
Person speaking. Caption: Calcium is another mineral that is especially important
Human Nutrition
Episode 6
22 minutes
Grade Level: 7 - 12
Illustration of a military person pointing to a chart with pictures of bananas, apples, and leafy greens. Caption: Choose foods that provide more potassium, dietary fiber, calcium, and vitamin D--
Human Nutrition
Episode 3
37 minutes 24 seconds
Grade Level: 7 - 12
Measuring cup. Eat the amount your body really needs. Measure out your portions. Caption: by measuring out your portions with measuring cups
Human Nutrition
Episode 5
36 minutes 26 seconds
Grade Level: 7 - 12
Illustration of a cell and a molecule of NaCl. Made up mostly of water. Caption: The fluid around the cell contains sodium chloride
Human Nutrition
Episode 4
33 minutes 20 seconds
Grade Level: 7 - 12
Diagram of foods containing Sucrose providing a combination of fructose and glucose or containing Lactose providing galactose and glucose after being processed by the liver. Caption: are also broken down and converted into glucose
Human Nutrition
Episode 2
28 minutes 20 seconds
Grade Level: 7 - 12
Illustration of a grazing cow. Greetings from the farm… Caption: (man) Like many foods,
Human Nutrition
Episode 7
17 minutes 37 seconds
Grade Level: 7 - 12
A humanoid robot holding a drill. Caption: to continuously pay attention to his surroundings
Science Out Loud
Episode 2
5 minutes 7 seconds
Grade Level: 10 - 12
ASL
Two women exercising with dumbbells. Caption: to make their bodies as strong as can be.
I Can Be Anything I Want to Be A to Z
Episode 11
3 minutes 49 seconds
Grade Level: 4 - 8
ASL
Two fish swim underwater through underwater plant life. Caption: I specialize in fish and aquatic life.
I Can Be Anything I Want to Be A to Z
Episode 26
5 minutes 35 seconds
Grade Level: 4 - 8
Illustration of beige spherical shapes and a single bright-green spiky shape. Caption: A virus is a lean, mean disease machine.
1 minutes 40 seconds
Grade Level: 7 - 12
Large spherical object surrounded by smaller multi-sphere objects. Nova Caption: Carbon is one of the most versatile elements.
1 minutes 37 seconds
Grade Level: 9 - 12
A herd of cattle, some adult, some baby, all with tags in their ears. Caption: The mother of this calf also has brown fur.
10 minutes
Grade Level: 5 - 8
Closeup of vibrant green leaves. Caption: that form a network throughout the plant structure.
20 minutes 17 seconds
Grade Level: 9 - 12
Illustration of two cells, one with spiky structures being overtaken by the other. Caption: how the body produces antibodies and T cells
21 minutes 19 seconds
Grade Level: 9 - 12
Close up of a black insect with translucent black wings and black antenna. Caption: our killer can locate her victims remotely.
28 minutes 46 seconds
Grade Level: 10 - 12
Close up of a yellow Labrador dog on a leash. Caption: They are clones, copies of the same dog.
Superlife
Episode 1
9 minutes 16 seconds
Grade Level: 9 - 12
Cartoon of a child in a classroom setting standing at the front of the class next to a skeleton. Caption: Your body's made of many parts that help you move and think.
Everyday Science for Preschoolers
Episode 7
1 minutes 7 seconds
Grade Level: 2 - 5
Rocky coastline. Caption: Life learned to use sunlight to develop
15 minutes 8 seconds
Grade Level: 7 - 12
Close up of head and shoulders of a manatee swimming under water. Caption: USGS
3 minutes 34 seconds
Grade Level: 6 - 12
People in an open-air enclosure standing around a table with paper and other objects on the surface. Caption: is that I am surrounded by really curious people,
Meet the Ologist
Episode 2
3 minutes 16 seconds
Grade Level: 5 - 8
Complex matrix of spherical objects next to a thermometer reading slightly above zero degrees. Caption: A low temperature indicates that the particles
23 minutes 38 seconds
Grade Level: 8 - 10
Magnified view of a very small animal with a segmented body and many legs. Caption: Only in a waterfall are there such creatures.
Microscopic Monsters
Episode 8
4 minutes 57 seconds
Grade Level: 5 - 8
Magnified view of thin, tangled threads. Caption: a fungus composed of a tangled mass of threads
Microscopic Monsters
Episode 9
4 minutes 58 seconds
Grade Level: 5 - 8
Closeup of a worm in soil. Caption: They really do a bang-up job of cultivating the soil.
Microscopic Monsters
Episode 12
4 minutes 45 seconds
Grade Level: 5 - 8
Closeup of a bee on a yellow flower. Caption: (Tara) Fertilization with an insect's help--
Microscopic Monsters
Episode 11
4 minutes 47 seconds
Grade Level: 5 - 8
Cross section of earth. Different layers of rock and soil have a jagged crack running down them. Caption: a complex and very ancient assemblage
Microscopic Monsters
Episode 13
7 minutes 31 seconds
Grade Level: 5 - 8
closeup of beige and brown insects in wood. Caption: They'll soon reduce this log to frass.
Microscopic Monsters
Episode 10
4 minutes 48 seconds
Grade Level: 5 - 8
Microscopic view of roughly oval shaped organisms surrounded by much smaller green spherical objects. Caption: I want to look closer at how they feed.
Microscopic Monsters
Episode 6
4 minutes 43 seconds
Grade Level: 5 - 8
A black, waist high horse wearing a bridle and halter is being held by a person standing next to it. Caption: the miniature horse has become a popular pet
Superlife
Episode 4
10 minutes 36 seconds
Grade Level: 10 - 12
Illustration of tubular structures. Nova science Now. Caption: The answer -- mirror neurons,
4 minutes 35 seconds
Grade Level: 10 - 12
Illustration of two people in a basket passing by tree roots. Caption: You're just passing through the root level.
My Little Planet
Episode 14
5 minutes 13 seconds
Grade Level: 3 - 6
Illustration of drops of water with faces. Caption: Look at this, Hanna.
My Little Planet
Episode 1
5 minutes 7 seconds
Grade Level: 3 - 6
Illustration of a spider. Caption: We breathe in oxygen and breathe out carbon dioxide.
My Little Planet
Episode 24
5 minutes 11 seconds
Grade Level: 3 - 6
Illustration of a dog scratching itself. Caption: Look! Everyone's scratching themselves.
My Little Planet
Episode 18
5 minutes 11 seconds
Grade Level: K - 3
Cow with a metal hat connected to wires that lead to a large machine. Caption: Thanks to my work, she can produce chocolate milk.
My Little Planet
Episode 19
5 minutes 20 seconds
Grade Level: 3 - 6
Illustration of three insects sitting on a ceiling beam, looking down on a fourth insect who is talking to two children in bed. Caption: (Suzie) Do you know the story of the princess dragonfly?
My Little Planet
Episode 26
5 minutes 7 seconds
Grade Level: 3 - 6
Illustration of two people floating on a platform and moving towards a waterfall. Caption: (Hanna) They disappeared into the waterfall.
My Little Planet
Episode 7
5 minutes 13 seconds
Grade Level: 3 - 6
Illustration of a person reaching to take something from a tree's hand. Caption: Take them and find a pretty spot to plant them.
My Little Planet
Episode 3
5 minutes 8 seconds
Grade Level: K - 3
Cartoon of a person pulling a plant out of the ground. Caption: Hey, be careful! Don't take it all.
My Little Planet
Episode 20
5 minutes 10 seconds
Grade Level: K - 3
Plastic 3D color-coded model of the human brain. Caption: The brain's maximum potential?
56 minutes 41 seconds
Grade Level: 9 - 12
Complex diagram indicating the relationship of different species of organisms. Caption: and are separated on the theropod family tree.
Natural News From The Field Museum
Season 0 / Ep 1
7 minutes 9 seconds
Grade Level: 10 - 12
Person wearing a backpack and a headlamp moving through a narrow opening in a crouched position. Caption: Okay, I'm going down a slope. It looks a little slippery.
16 minutes 57 seconds
Grade Level: 6 - 12
A river flows through a large forest area. Caption: Amazon Rainforest. Latitude, 4 degrees North to 13 degrees South. Longitude, 45 degrees to 77 degrees West. Rainfall, 2500 to 4000 millimeters. Temperature range, 20 degrees to 32 degrees Celsius.
Nature's Microworlds
Season 1 / Ep 3
29 minutes 17 seconds
Grade Level: 7 - 12
A small hill is present in a large plain.
Nature's Microworlds
Season 1 / Ep 12
29 minutes 18 seconds
Grade Level: 7 - 12
A coastal region with fog rising from the sea. Caption: Galapagos Ecuador. Latitude, 1 degree 40 minutes North. Longitude, 89 degrees 16 minutes to 92 degrees 01 minutes West. Air Temperature, 20 to 32 degrees Celsius.
Nature's Microworlds
Season 1 / Ep 1
29 minutes 19 seconds
Grade Level: 7 - 12
Ants climbing on the shoots of grass.
Nature's Microworlds: Insect Specials
Season 3 / Ep 2
29 minutes 19 seconds
Grade Level: 7 - 12
A butterfly with its wing spread out and sitting on a flower.
Nature's Microworlds: Insect Specials
Season 3 / Ep 3
29 minutes 30 seconds
Grade Level: 7 - 12
A locust chews on a shoot of grass.
Nature's Microworlds: Insect Specials
Season 3 / Ep 1
29 minutes 8 seconds
Grade Level: 7 - 12
A coastal region of South West Africa. Caption: Africa Namib Desert. Latitude, 19 degrees 23 minutes South. Longitude, 12 degrees 53 minutes East. Midday Dune Temperature, 50 degrees Celsius. Average Rainfall, 2 to 85 millimeters.
Nature's Microworlds
Season 1 / Ep 9
29 minutes 16 seconds
Grade Level: 7 - 12
An area on the map of Africa is highlighted, with a group of deer running in the background. Caption: Okavango Botswana. Latitude, 19 degrees to 20 degrees. Longitude, 22 degrees to 23 degrees East. Average rainfall, 450 millimeters. Temperature range, 21 degrees to 38 degrees Celsius.
Nature's Microworlds
Season 1 / Ep 5
29 minutes 33 seconds
Grade Level: 7 - 12
An area on the map of Scotland is highlighted, and a mountain range with snow covered peaks are depicted in the background. Caption: Scottish Highlands. Latitude, 57 degrees North. Longitude, 4 degrees West. Average rainfall, 3000 millimeters. Temperature range, minus 2 degrees Celsius.
Nature's Microworlds
Season 1 / Ep 13
29 minutes 44 seconds
Grade Level: 7 - 12
A hilly forest region of East Africa. Caption: Serengeti Tanzania. Latitude, 2 degrees 43 minutes South. Longitude, 34 degrees 85 minutes East. Average Rainfall, 700 millimeters. Temperature range, 15 to 28 degrees Celsius.
Nature's Microworlds
Season 1 / Ep 2
29 minutes 18 seconds
Grade Level: 7 - 12
An ice covered region. Caption: Svalbard Norway. Latitude, 74 degrees to 81 degrees North. Longitude, 10 degrees to 35 degrees East. Average W I.
Nature's Microworlds
Season 1 / Ep 6
29 minutes 16 seconds
Grade Level: 7 - 12
A photo depicts a region with a large number of trees and small water pockets. Fog rises from the earth.
Nature's Microworlds
Season 1 / Ep 10
29 minutes 20 seconds
Grade Level: 7 - 12
Three jellyfish of various sizes with ribbon-like and long, straight tentacles. Caption: Well, it appears one creature is a step ahead of us.
News of the Day
Episode 4
1 minutes 51 seconds
Grade Level: 7 - 12
Closeup of a mosquito with proboscis piercing human skin. Caption: When a mosquito infects a person with dengue virus,
3 minutes 17 seconds
Grade Level: 10 - 12
3 people with hats, backpacks, and cameras and several horses, some with riders, hike up a dirt trail on a mountain amongst various flora in the fall. Caption. The mountains of Baja.
Ordinary Extraordinary Junco
Episode
1 hour 32 minutes
Grade Level: 9 - 12
Closeup of terraced moss on a hillside with water dripping from it. Caption: early land plants most likely lived in moist environments.
20 minutes 42 seconds
Grade Level: 9 - 12
Illustration of a stalk of corn showing roots below ground and foliage above ground. Sun Light, CO2, and Sugar are above ground and Water is below ground. Caption: What vital gas is also given off in photosynthesis?
23 minutes 11 seconds
Grade Level: 10 - 12
Photosynthesis, it's a crazy, complicated process.
1 minutes 13 seconds
Grade Level: 7 - 12
Man and woman walking with arms around each other's waist. Caption: humans are truly a privileged species,
32 minutes 14 seconds
Grade Level: 10 - 12
ASL
Person looking at a slide in a microscope. Caption: And this is a biochemistry lab.
Profiles Of Scientists And Engineers
Episode 10
6 minutes 55 seconds
Grade Level: 9 - 12
ASL
Person in a lab coat and gloves putting on protective glasses. Caption: For Rommie, being a chemist was just the beginning.
Profiles Of Scientists And Engineers
Episode 2
5 minutes 32 seconds
Grade Level: 9 - 12
Protists, single celled organisms.
1 minutes 15 seconds
Grade Level: 7 - 12
Angular aircraft with multiple flaps on each wing sitting on a concrete deck, viewed from below. Caption: (observer) The aircraft's controlled by many movable surfaces,
Nature
Season 25 / Ep 7
29 minutes 48 seconds
Grade Level: 7 - 12
Closeup of a tick on a leaf. Lyme Disease. Caption: Ticks are carriers of Lyme disease.
Real World Science
Episode 20
13 minutes 45 seconds
Grade Level: 4 - 8
Blue tropical fish eating something from a rock covered in plants. Caption: Consumers cannot produce their own food.
Real World Science
Episode 6
10 minutes 8 seconds
Grade Level: 4 - 8
Illustration of the upper respiratory system. A tube extending from the top of the throat down into the chest is labeled as the trachea. Caption: The trachea is about 12 centimeters long
19 minutes 43 seconds
Grade Level: 9 - 12
Computer model of spiral ribbon structures with hollow, hexagonal tubular structures. Caption: (male narrator) What's the best was to know a protein?
Science Nation
Episode 132
2 minutes 33 seconds
Grade Level: 10 - 12
Bat held down by cardboard restraint, pinning wings to body. Caption: how these highly-specialized creatures navigate their world.
Science Nation
Episode 233
3 minutes 36 seconds
Grade Level: 10 - 12
Woman in front of a computer screen in a dimly lit space. Caption: about impacts of night shift work on a woman's body clock.
Science Nation
Episode 154
2 minutes 33 seconds
Grade Level: 10 - 12
A gray eel. National Aquarium. Caption: an electric eel can generate enough current to stun its prey.
Science Nation
Episode 89
2 minutes 33 seconds
Grade Level: 7 - 12
Black butterflies with orange and white wings on a bright orange flower. Caption: (narrator) The colors signal to birds, "Don't eat me, I'm toxic."
Science Nation
Episode 137
2 minutes 33 seconds
Grade Level: 7 - 12
Computer screen displaying two uneven strands of light. Caption: that thrives where life would seem impossible.
Science Nation
Episode 184
4 minutes 56 seconds
Grade Level: 9 - 12
Two people moving a flat of plants. Caption: are reimagining the future of farming --
Science Nation
Episode 235
3 minutes 34 seconds
Grade Level: 10 - 12
Person picking up wood chips and putting them into a plastic bag. Caption: (Huber) Cellulose is basically stored solar energy
Science Nation
Episode 202
4 minutes 55 seconds
Grade Level: 9 - 12
Oysters in the water. Caption: is to restore the oyster ecosystem.
Science Nation
Episode 227
3 minutes 42 seconds
Grade Level: 7 - 12
Map of the world with central and southern Africa highlighted. Arrows indicate movement from there to all areas of the globe. Caption: after the first homo sapiens left Africa 100,00 years ago.
Science Nation
Episode 158
2 minutes 33 seconds
Grade Level: 9 - 12
Alligator in grass. Caption: for a population and genetics survey of alligators.
Science Nation
Episode 88
2 minutes 29 seconds
Grade Level: 10 - 12
Cross section of the human brain. Caption: creating a virtual 3-D image of the brain.
Science Nation
Episode 119
2 minutes 33 seconds
Grade Level: 9 - 12
Clear vial with a glowing pink liquid. Caption: may one day make treating cancer easier
Science Nation
Episode 198
5 minutes 18 seconds
Grade Level: 9 - 12
Small turtle held in a person's hands. Caption: studies sea turtles that are programmed from birth
Science Nation
Episode 175
2 minutes 31 seconds
Grade Level: 7 - 12
Closeup of a green, circular plant with a white center. Caption: have the ability to make diesel-like fuels.
Science Nation
Episode 50
2 minutes 45 seconds
Grade Level: 7 - 12
ASL
Large spider with variegated legs crawling on a person's fingertip. Caption: The silk is from golden orb weaver spiders.
Science Nation
Episode 164
2 minutes 33 seconds
Grade Level: 7 - 12
Black salamander with yellow spots crawling on the ground. Caption: to survive in a specific habitat is a structural adaptation.
Science Video Vocab
Episode 90
5 minutes 53 seconds
Grade Level: 1 - 4
Hummingbird hovering in the air. Caption: And they get this energy by eating and digesting food.
Science Video Vocab
Episode 80
4 minutes 1 seconds
Grade Level: 9 - 12
Field of grain like plants. Caption: such as ethanol and propanol.
Science Video Vocab
Episode 16
2 minutes 50 seconds
Grade Level: 9 - 12
A large brown bird perched on a dead branch. Caption: Some birds are carnivores too.
Science Video Vocab
Episode 92
3 minutes 28 seconds
Grade Level: 1 - 4
Graphic of light and dark blue spheres of various sizes. Caption: The food molecules fuel cellular respiration.
Science Video Vocab
Episode 108
2 minutes 40 seconds
Grade Level: 9 - 12
A duck, flamingo, and cardinal. Class is Aves. Caption: All birds are part of class Aves.
Science Video Vocab
Episode 107
3 minutes 44 seconds
Grade Level: 5 - 8
Large turtle swimming on the ocean floor. Caption: Every living thing gets energy from food.
Science Video Vocab
Episode 101
4 minutes 43 seconds
Grade Level: 1 - 4
Closeup of a cluster of mushrooms. Fungi decomposer. Caption: Fungi are another type of decomposer.
Science Video Vocab
Episode 102
3 minutes 40 seconds
Grade Level: 1 - 4
Closeup of a cluster of mushrooms. Fungi decomposer. Spanish captions.
Science Video Vocab (Spanish)
Episode 98
4 minutes 6 seconds
Grade Level: 1 - 4
People walking down a snowy street. Caption: The planet earth has many different kinds of environments.
Science Video Vocab
Episode 8
4 minutes 48 seconds
Grade Level: 4 - 8
Gorilla, chimpanzee, humans. Family is Hominid.
Science Video Vocab
Episode 106
3 minutes 34 seconds
Grade Level: 5 - 8
Herd of cows grazing in a green pasture. Caption: All living things need energy to grow, change and move.
Science Video Vocab
Episode 93
4 minutes 35 seconds
Grade Level: 1 - 4
Industrial plant with smokestacks emitting pollutants. Caption: Increased greenhouse gases in the atmosphere.
Science Video Vocab
Episode 128
2 minutes 48 seconds
Grade Level: 5 - 8
Flock of sheep grazing in a pasture. Caption: Grazers are animals that eat grasses and small plants.
Science Video Vocab
Episode 91
4 minutes 21 seconds
Grade Level: 1 - 4
Computerized image of a skull. Caption: The axial skeleton consists of the skull,
Science Video Vocab
Episode 141
2 minutes 31 seconds
Grade Level: 8 - 12
Giraffes in natural habitat. Caption: Imprinted behaviors are fairly permanent,
Science Video Vocab
Episode 104
2 minutes 34 seconds
Grade Level: 1 - 4
Adult dog with a puppy. Caption: Innate means you we're born with them.
Science Video Vocab
Episode 103
3 minutes 48 seconds
Grade Level: 1 - 4
Herd of elephants in natural habitat. Caption: Animals are living things.
Science Video Vocab
Episode 86
4 minutes 4 seconds
Grade Level: 1 - 4
Butterfly lays the egg, egg hatches to larva, larva changes into a pupa, pupa turns into a butterfly. Caption: They are egg, larva, pupa, and adult.
Science Video Vocab
Episode 131
4 minutes 15 seconds
Grade Level: 5 - 8
Diagram showing a lung structure with no mucus reaching into tissue below and the same lung structure covered in mucus unable to do the same thing. Caption: The mucus clogs the lungs and causes infections.
Science Video Vocab
Episode 105
5 minutes 30 seconds
Grade Level: 9 - 12
Negative feedback loop. Control center (brain), effector, response, feedback, stimuli, receptor, back to control center. Caption: The control center determines the appropriate response.
Science Video Vocab
Episode 110
2 minutes 28 seconds
Grade Level: 9 - 12
Formations of red rock in desert scrub brush. Caption: Rocks are non-living things.
Science Video Vocab
Episode 96
3 minutes 56 seconds
Grade Level: 1 - 4
Microscopic view of bell-shaped organisms on a fine stalk. Caption: All protists share common characteristics.
Science Video Vocab
Episode 126
2 minutes 35 seconds
Grade Level: 5 - 8
View of Earth from space. Caption: They tell us how nature does behave.
Science Video Vocab
Episode 65
4 minutes 17 seconds
Grade Level: 9 - 12
Closeup of a mottled brown spider. Caption: arachnids and crustaceans, have a skeleton on the outside
Science Video Vocab
Episode 134
2 minutes 7 seconds
Grade Level: 5 - 8
Person looking into a microscope. Caption: (Zacharias) What do you do at the lab?
Scientists & Engineers On Sofas (And Other Furnishings)
Episode 4
5 minutes 14 seconds
Grade Level: 10 - 12
Two people walking down a hallway. Caption: we chat with DNA scientist Bruce Jackson,
Scientists & Engineers On Sofas (And Other Furnishings)
Episode 1
7 minutes 12 seconds
Grade Level: 10 - 12
Illustration of a bear in snow. Caption: for the long winter's nap,
Seasonal Science
Episode 2
2 minutes 5 seconds
Grade Level: 7 - 12
Pine Reproduction 101. Pine tree, a male pinecone, and a female pinecone. Female pinecones have a long protrusion from the center and pine needles around the edges. Caption: Each tree has female pine cones and male pine cones.
Seasonal Science
Episode 4
1 minutes 48 seconds
Grade Level: 7 - 12
Raptors. Diagram of a raptor showing keen eyes, curved beak, talons, and a taste for prey. Caption: Raptors migrate south during the winter months
Seasonal Science
Episode 7
2 minutes 43 seconds
Grade Level: 7 - 12
Illustration of a Venus flytrap with a fly caught in one of the traps. Caption: and the predatory carnivorous Venus flytrap, of course.
Seasonal Science
Episode 5
2 minutes 5 seconds
Grade Level: 7 - 12
Person shaking seeds out of the head of a plant into their hand. Caption: Even the smallest seed contains everything needed to grow
14 minutes 5 seconds
Grade Level: 6 - 12
Person holding the fossilized skull of an animal. Caption: but there's still a liveliness and a connection
Shelf Life
Season 1 / Ep 2
4 minutes 35 seconds
Grade Level: 10 - 12
Fossilized dinosaur skeleton still partially encased in rock displayed next to a model of the same dinosaur. Caption: Out of those, only a few are really prepared well.
Shelf Life
Season 1 / Ep 10
6 minutes 25 seconds
Grade Level: 10 - 12
Congo expedition of the American Museum of Natural History May 1909 to November 1915. Black and white photos of explorers with crocodile skulls and a map in the background. Caption: Those explorers had collected crocodile specimens
Shelf Life
Season 2 / Ep 16
5 minutes 58 seconds
Grade Level: 10 - 12
Three turtles, one with a tag around its neck. Caption: The turtles are all here together.
Shelf Life
Season 1 / Ep 2
3 minutes 20 seconds
Grade Level: 10 - 12
Irregular pinkish-brown shapes on a white background. Caption: you can actually really see that very fine cellular detail.
Shelf Life
Season 1 / Ep 3
6 minutes 45 seconds
Grade Level: 10 - 12
Illustration of a person standing on the shoreline next to a squid with a body larger than the person is tall. Caption: had just found a giant squid, and would I be interested?
Shelf Life
Season 1 / Ep 8
6 minutes 24 seconds
Grade Level: 10 - 12
Person in a white coat working in a science lab. Caption: Researchers are making genetically modified silkworms.
Superlife
Episode 5
5 minutes 45 seconds
Grade Level: 10 - 12
Diagram of a cell with spherical objects in the middle. Each object has a clear ring around the exterior. Caption: In eukaryotes, a cell nucleus protects the DNA.
3 minutes 43 seconds
Grade Level: 7 - 12
Long grasses and shrubs. Caption: More than 100,000 natural compounds occur in plants,
Science Out Loud
Episode 10
3 minutes 54 seconds
Grade Level: 10 - 12
Person holding a starfish and pointing to one of the arms. Caption: It was clear something was in the water,
4 minutes 38 seconds
Grade Level: 7 - 12
Squid with a white body speckled in reddish brown. The color of the head matches the color of the speckles on the body. Caption: His brain has total control over what his skin is doing.
Science Out Loud
Episode 3
4 minutes 32 seconds
Grade Level: 10 - 12
A hummingbird drinking nectar out of a flower.
5 minutes 13 seconds
Grade Level: 7 - 12
Coral with an inset magnification showing overlapping small red dots. Caption: The color of the coral reflects millions of tiny algae
Super Corals
Episode 2
3 minutes 41 seconds
Grade Level: 10 - 12
Translucent white termites in the dirt. Caption: Termites are social insects,
45 minutes 18 seconds
Grade Level: 10 - 12
Vials and other containers in a science lab. Caption: We've taken the cells out of the muscle tissue.
Superlife
Episode 6
5 minutes 6 seconds
Grade Level: 10 - 12
Crab with red legs and a darker body. Caption: Most of the year, the red crabs live in their burrows inland.
16 minutes 49 seconds
Grade Level: 6 - 12
A skeletal bone is being placed on a table.
6 minutes 25 seconds
Grade Level: 10 - 12
Apples hang from an apple tree. Caption: This, scientists say, is the apple's genetic home.
The Botany of Desire
Episode 2
1 minutes 28 seconds
Grade Level: 10 - 12
A poster for Washington state apples displays apples with a caption apple a day. Only the finest. Caption: an apple a day keeps the doctor away.
The Botany of Desire
Episode 5
2 minutes 51 seconds
Grade Level: 10 - 12
Apply for a Free Membership

Major funding provided by the Department of Education