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In this design challenge activity, learners build a shock-absorbing system that will protect two “astronauts” when they land.

In this activity, learners make a black box device that serves as an excellent analogy to Rutherford's famous experiment in which he deduced the existence of the atomic nucleus.

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

In this physics activity (page 10 of the PDF), learners will explore how energy from moving water can be used.

In this experiment, learners design and build a model room in a shoebox and furnish it with tiny furniture.