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In this chemistry meets cooking activity, learners compare the stability of egg white foams with various additives.

In this experiment, learners will explore whether increased carbon dioxide makes our oceans more basic or more acidic.

In this activity (located on page 5 of PDF), learners work in groups to create dig sites for display.

In this activity, learners experiment with gear motion to understand how gears work to change the amount of force, speed, or direction of motion in machines.

In this activity, learners will engineer three different parachutes to test how well each one works.

This magic trick is based on how computers detect and correct data errors.

In this activity, learners will make a marionette puppet and put on a show. Learners will explore color, design, fabrication and storytelling through this activity.

In this activity, challenge learners to keep an ice cube from completely melting in 30 minutes. Learners engineer a box or wrap to prevent an ice cube from melting.

In this activity (on pages 11-14 of PDF), learners cut out pictures from magazines of foods that help make bones strong and glue the pictures to a paper bone.

Everybody loves messy science, and Flubber is a favorite of both COSI employees and guests!

Everybody loves bubbles, and this is the best bubble recipe ever!

In this activity, learners use a model for how fishing affects marine life populations, and will construct explanations for one of the reasons why fish populations are declining.

In this activity, learners discover how to rotate a flat shape into the third dimension. Learners draw and cut out a shape that has at least one straight edge on an index card.

In this activity (on pages 11-12 of PDF) learners create models of lava layers that have formed on the moon.

In this activity, learners design a therapeutic agent to image and/or cure various diseases in the respiratory system.

In this hands-on activity, learners build their own kaleidoscopes and explore how light can reflect of off surfaces such as mirrors, to produce beautiful patterns.

In this activity, learners build rockets and shoot them into the air by stomping on the plastic bottle launchers.

Learners will do an experiment to determine which type of paper is strongest while focusing on variables and collecting data.

These puzzles use four colors of socks in a drawer to get learners thinking algebraically.

In this outdoor activity, learners discover how the environment around a building affects the growth of plants.