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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 explore the relative sizes and distances of objects in the solar system.

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

In this activity, learners create a three-dimensional sculpture while examining the characteristics of fish.

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

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!

In this demonstration, learners compare the relative sizes and masses of scale models of the planets as represented by fruits and other foods.

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

In this activity, learners model the gravitational fields of planets on a flexible surface.

Learners build a model of the planets in the solar system. In their model, the planets are spaced in their relative distance from the Sun.

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