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This is an activity that models the operation of a seismograph, a tool used to measure the size of earthquakes.

This activity provides a hands-on experience with a scale model, a relatively high viscosity fluid, and feeding behaviors.

In this activity, learners make a scale model of an atom to see how big or how small an atom is compared to its nucleus. Learners will realize that most of matter is just empty space!

Learners build a simple hovercraft using air from a balloon to levitate a craft made from a compact disc (CD).

Learners examine collisions between two skateboards carrying different masses. They learn about conservation of momentum in collisions.

Learners build structures from spaghetti and marshmallows to determine which structures are able to handle the greatest load.

Learners construct a rocket from a balloon propelled along a guide string.

Learners build at least two different spinners (tops) to investigate how mass distribution, size, and shape affect the length of time the spinner spins.

Water on Earth is in lakes, the ocean, rivers, underground, and frozen glaciers.

To learn how friction affects motion, learners build a measurement tool from a rubber band and other simple materials.