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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.

Learners construct an electricity-generating wind turbine out of a plastic bottle.

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

In this activity, learners create models of erosion and floods and learn to recognize both in their environment.

In this activity, learners simulate nature's water filtration system by devising a system that will filter out both visible and invisible pollutants from water.

In this activity, learners eat a snack and make a model of the plumbing system of a volcano.

In this outdoor, sunny day activity, learners experiment with paper leaf models to discover how some desert plants conserve water.

In this activity related to climate change, learners examine albedo and the ice albedo feedback effect as it relates to snow, ice, and the likely results of reduced snow and ice cover on global temper

In this activity, learners create a soil and water model of a single-cell life environment and study living microorganisms.

In this activity, learners make a miniature greenhouse or "terrarium" to explore the greenhouse effect.

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.

In this activity, learners are challenged to design a planktonic organism that will neither float like a cork nor sink like a stone.

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

Learners build a wind turbine and test it to see how much energy is created.

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

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

In this two-part activity, learners explore the Earth and Sun's positions in relation to the constellations of the ecliptic with a small model.

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

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, groups of learners work together to create edible models of chemicals involved in autotrophic nutrition.