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In this activity, learners explore the human influences on the carbon cycle and examine how fossil fuels release carbon.

In this activity, learners investigate soil erosion. Learners set up a simulation to observe how water can change the land and move nutrients from one place to another.

In this activity, learners are invited to imagine the park of their dreams!

This hands-on experiment will provide learners with an understanding of the issues that surround environmental cleanup.

In this experiment, learners examine the way oil affects bird feathers and test different cleanup methods to find out which works best.

This activity about cryptographic techniques illustrates how to accomplish a simple, but nevertheless seemingly impossible task—making a fair, random choice by flipping a coin between two people who d