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Learners build devices from rubber bands to test for invisible air pollutants.

Learners explore the variables that affect the properties of ice and the places where different types of ice are found.

Learners explore capillary action in plants (such as plants ability to move water from roots to leaves) in an investigation called Paper Blooms.

In this math lesson, learners apply the concepts of ratios and percentages to the distribution of letters contained in a box of Alphabits® cereal.

In this activity related to microbes, learners use water drops and hand lenses to begin the exploration of magnification. This activity also introduces learners to the microscope.

In this outdoor science/art activity, learners investigate spider webs by using string to create their own spider webs.

In this activity, learners use the Sun's energy to cook marshmallows. Learners construct the solar oven out of simple everyday materials.

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 design challenge activity, learners make a balloon hover at eye level for five seconds, and then make it move by creating air currents.

A group of learners simulates the spread of disease by trading slips of paper, one set of which has been treated with a baking soda solution.