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In this data collection and analysis activity, learners evaluate fish physiology and ecology using vision research data from Dr.

In this activity, learners simulate the energy transfer between the earth and space by using the light from a desk lamp desk lamp with an incandescent bulb and a stack of glass plates.

In this two-part activity, learners explore the properties of liquid crystals, which are responsible for why mood rings change color.

This simple hands-on activity demonstrates why the sky appears blue on a sunny day and red during sunrise and sunset.