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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 play a game and use pattern blocks to explore mirror images and reflection.

In ancient Chaco Canyon, the people used a "sun dagger" petroglyph to mark the passing of seasons.

Light painting is a creative activity that involves creating striking images and illusions using a camera, a light source, and a little practice.

This activity shows how our experience of the Sun changes with time and location. The sun dagger at Chaco Canyon is thought by many to be a sort of ancient timekeeping device.

In this activity you'll see how the sun's tilt on its axis changes the length of shadows. For example, why is your shadow longer in winter than in summer?

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

Have you ever heard of a camera without a lens? In this activity, learners create a pinhole camera out of simple materials. They'll see the world in a whole new way: upside down and backwards!

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

In this activity, learners make or use pre-made clay beams to scale and proportion. Specifically, they discover that when you scale up proportionally (i.e.

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 activity, learners investigate convection by using food coloring and water of different temperatures.

In this activity, learners separate the components of Gatorade using a home-made affinity column.

In this activity, learners explore the "nuts and bolts" of gene chips.

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

In this activity, learners build bridges using paper and explore how much weight each bridge design can support.

In this activity related to music and sound vibrations, learners make a phonograph or record player out of simple materials. First, learners assemble the turntable, arm, and sound cone.

In this activity, learners make a scale model of the Solar System and learn the real definition of "space." Learners use the online calculator to create an appropriate scale to use as a basis for thei

In this activity, learners measure and calculate the amount of cubic feet various containers contain. Next, learners investigate cubic feet per second (cps), by carrying jugs in one second.

In this activity, learners use crayons to draw conclusions about rocks and the rock cycle.