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In this geology activity, learners create a model using a mixture of salt and sand inside a CD case. When the case is tilted or inverted, the mixture dramatically sorts into a layered pattern.

Did you know that a Slinky makes a handy model of earthquake waves?

In this activity, learners conduct an experiment to find out if steel wool will weigh more or less when it is burned. Learners will explore the effects of oxidation and rusting on the steel wool.

In this activity, learners create a tornado in a bottle to observe a spiraling, funnel-shaped vortex. A simple connector device allows water to drain from a 2-liter bottle into a second bottle.

This is an activity to do when there is a solar eclipse!

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

In this activity, learners use rice grains to model the composition of the atmosphere of the Earth today and in 1880. Learners assemble the model while measuring percentages.

This activity guide includes instructions on how to build a "Shake Table" by mounting an eccentric mass (off center) on the shaft of a small dc motor.

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

In this math activity related to light, learners assemble a photometer and use it to estimate the power output of the Sun.

In this activity, learners make a 3-D model of magnetic fields by inserting a small, strong magnet into a sphere.

In this demonstration, learners explore a variation of a Foucault pendulum, but upside down.

In this hands-on and feet-on excursion, learners take a science walk to visualize the planet's immense size and numerous structures, without the usual scale and ratio dimensions found in most textbook

In this edible experiment, learners pour "Magic Shell" chocolate into a glass of cold water. They'll observe as pillow shaped structures form, which resemble lavas on the sea floor.

In this activity, learners work in groups to create a time line representing significant moments in their lives.

In this activity, learners try to figure out who has their matching rock type by reading a description of their rock (no talking!).

In this geology activity learners build a "squeeze box," which allows them to compress layers of sediment. This is a great way to investigate folding and faulting in the Earth.

In this activity, two groups of learners create two separate landform models out of clay (mountains and valleys).

In this activity, learners model hot spot island formation, orientation and progression with condiments.

In this activity, learners explore why the sky is blue. Learners model the scattering of light by the atmosphere, which creates the blue sky and red sunset, using a flashlight and clear glue sticks.