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What Is Light?

9 minutes 59 seconds

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What is light? What are some of the ways people use light? In this program, students develop a basic understanding of light and its uses. The fundamental characteristics of light are highlighted. Concepts and terminology discussed include: night, day, solar energy, and reflect.

Media Details

Runtime: 9 minutes 59 seconds

Topic: Science
Subtopic: Chemistry, Physics
Grade/Interest Level: 2 - 5
Standards:

Release Year: 2013
Producer/Distributor: Visual Learning Systems
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Teacher's Guide

Lights and gauges with display screens cover the walls. Illustration of energetic reaction drawn on top. Caption: it releases a lot of energy in the form of heat.

Person in a science lab. One beaker contains an orange liquid, and one beaker contains a green liquid. Caption: It's orange. That means its pH is 5.

Industrial plant from a distance. Caption: That's the world's largest PLA manufacturing plant.

People feeding dried hay to goats. Caption: How can we figure out how much energy is stored in this hay?

Person speaking. Caption: So a nanometer would be ten to the minus nine meters.

Person speaking. Caption: Nanoparticles have been used in sunscreens

Person speaking. Caption: and work on it to manage those risks.

Person speaking. Caption: We can apply an electric field or magnetic fields to them.

Person speaking. Caption: about nanobots replicating and taking over the world.

Person speaking. Caption: between one and one hundred nanometers.