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Topics/Subjects:
Energy  
Learning Time:
30 to 45 minutes  
Educational Level:
Elementary school  
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This is a lesson about spacecraft communication. Learners will explore the concepts of "signal" and "noise" by listening to a computer-generated signal from two different distances with no additional background noise, and then with background noise,... (View More)

Audience: Elementary school
Materials Cost: Free

This experimental activity is designed to develop basic understanding of the relationship between the angle of light rays and the area over which the light rays are distributed, and the potential to affect changes in the temperature of materials.... (View More)

In this kinesthetic activity, students observe the relationship between energy and the frequency of waves transmitted through a rope. A rope and a slinky are used in this activity. The resource is part of the teacher's guide accompanying the video,... (View More)

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