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Freshwater

20 minutes 44 seconds

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Turbulent water moving from an area of higher elevation to lower elevation. Caption: This is due to the fact that water continually cycles

What percent of earth's water is fresh? What are sources of freshwater? What is groundwater and how is it formed? Covers these questions and more in this discussion of water's characteristics, the water cycle, and freshwater's importance. Concludes with a quiz.

Media Details

Runtime: 20 minutes 44 seconds

Topic: Science
Subtopic: Physics
Grade/Interest Level: 5 - 10
Standards:

Release Year: 2002
Producer/Distributor: Visual Learning Systems
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DCMP Lesson Guide Producer Lesson 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.

Square device with objects at the four corners labeled N-E-S-O and a single object in the middle of the square. Caption: called an interferometer,

Still image from: Acceleration

Astronaut in a space suit on the surface of the moon. Caption: (Young) Look at it go, would you, Charlie?

Crash test dummy in the driver's seat of a vehicle. Caption: [tires squeal]

Large plane taxiing on a runway. Caption: Propulsion is the power that moves something,

Still image from: Airplane on a Conveyor Belt

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.