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This is an online simulation of how sound changes due to environment. How does place--like a cave, a pier, or a forest--affect certain sounds?

In this activity, learners build a cuica or chirping bird using straw, string, and a bottle cap. Use this activity to explore the interplay of motion and sound.

Use this hands-on activity to demonstrate infrared and thermal radiation.

In this activity about camouflage, learners create a model that shows how a flounder is able to blend into a variety of environments.