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This activity demonstrates liquefaction, the process by which some soils lose their solidity during an earthquake.

In this activity, learners build bridges using paper and explore how much weight each bridge design can support.

In this weather-related activity, learners make a portable cloud in a bottle.

In this activity about electricity, learners suspend pieces of tape from a straw to construct an electroscope, a device that detects an electrical charge.

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