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Benchmark Media

Benchmark Media

Two people talking while standing in a greenhouse surrounded by potted and hanging plants. Caption: We're using a pot with a moistened soilless mix
21 minutes 11 seconds
Grade Level: 10 - 12
Two people talking while standing in a greenhouse surrounded by potted and planted plants. Caption: Soak the soil and let it drain away?
21 minutes 56 seconds
Grade Level: 10 - 12
A metal spout inserted into the bark of a tree with a bucket hanging to catch the discharge. Caption: will flow freely from the towering trees,
21 minutes 8 seconds
Grade Level: 10 - 12
Infrared scan of the head and shoulders of a person mostly in red and yellow. Caption: it's already increased 5 degrees to 36 degrees Celsius.
15 minutes 24 seconds
Grade Level: 9 - 12
Still image from: India: Asian Giant
14 minutes 3 seconds
Grade Level: 9 - 12
Still image from: India: Country Girl
14 minutes 4 seconds
Grade Level: 5 - 10
Still image from: Indonesia: A Southeast Asian Nation
17 minutes 10 seconds
Grade Level: 6 - 10
Still image from: Japan: The 21st Century
28 minutes 10 seconds
Grade Level: 6 - 12
Still image from: Let's Get It Straight: Linear Equations and Their Graphs: Part One
15 minutes 55 seconds
Grade Level: 7 - 12
Still image from: Middle America: Mexico to Venezuela and the Caribbean Islands
23 minutes
Grade Level: 7 - 11
Multiple images showing a progression of yellow to red circles appearing on a dark background. Caption: Then, a series of images are collected at regular intervals.
15 minutes 37 seconds
Grade Level: 10 - 12
Still image from: Ratios
24 minutes 2 seconds
Grade Level: 6 - 10
Four test tubes. Three are labelled as Fe3O2, PbO2, and MnO2. The fourth is unlabeled and a beaker of colored liquid is being poured into it. Caption: To make the production of oxygen more visible,
16 minutes 10 seconds
Grade Level: 9 - 12
Sparks flying out of a small container. Caption: to form aluminum oxide, leaving iron metal behind.
14 minutes 32 seconds
Grade Level: 9 - 12
Gloved hand holding the trachea and lungs from a human body. Caption: branches into two smaller tubes called bronchi,
15 minutes 39 seconds
Grade Level: 9 - 12
Closeup of the human eye. Caption: which regulates the amount of light entering the eye.
15 minutes 44 seconds
Grade Level: 9 - 12