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In this activity, learners build their your own seismograph with household materials to document shaking.

In this activity, learners use a compact disc to make a spectrometer, an instrument used to measure properties of light.

In this activity, learners use a straight line to learn about circles. Learners measure and record the diameter and circumference of different sized cylindrical objects on a chart.

In this activity, learners make different shapes that hold exactly one mole of gas (air).

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

Learners build a filter from old soda bottles and dirt. They create polluted water, and pour it through their filter to clean it.