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

In this activity, learners investigate the concepts of relative size and distance by creating a basic model of the solar system.

In this math activity, learners will create a scale diagram of their backyard or other outdoor area on graph paper.

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

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.

Learners investigate the concept of humidity by using a dry and wet sponge as a model. They determine a model for 100% humidity, a sponge saturated with water.

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

In this activity (located on page 4 of PDF), learners gain insight into the actual size of dinosaurs and practice making estimations and measurements.