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In this activity, learners explore how distance can affect the way we perceive the size of an object.

In this activity, learners practice the steps involved in a scientific investigation while learning why ice formations on land (not those on water) will cause a rise in sea level upon melting.

This creative lesson plan provides a visual way for learners to gain knowledge about the finite amount of fresh water on Earth and encourages the discussion of the various ways to conserve this resour

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

Learners color and cut out a spiral-shaped snake. When they hang their snake over a radiator, the snake spins.