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In this activity exploring liquid dynamics, learners design and build a clay channel in a tray of water and then see what happens when food coloring and liquid soap are added to the mix.

In this activity, learners build mini catapults using paint paddles and a spoon. Use this activity to introduce learners to forces and projectile motion.

In this quick activity, learners break the tension that happens when water develops a "skin." Learners use water, pepper and some soap to discover the wonders of surface tension—the force that attract

This hands-on activity shows you how to build basic architectural shapes out of toothpicks and gumdrops.

In this activity, learners build bridges out of newspaper and tape to explore how structures are designed to bear loads.