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In this activity on page 13 of the PDF, use a special plastic card that has been painted with a chemical that changes color when it is in UV light.

In this quick activity (page 1 of PDF under SciGirls Activity: Lift Off), learners will use the ever-popular soda geyser experiment to test the reactivity of the various sugar candies or mints.

In this activity, learners use a simple 3D model to discover why the Moon has phases.

Build time sense into the schedule by asking learners to predict what can happen in a certain amount of time: We have 20 minutes before outdoor time. What can you get done?

In this activity, learners make their own pinhole viewer in order to measure the size of the sun.

In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.

In this activity (page 1 of the PDF under SciGirls Activity: Double Dutch), learners will stand twelve feet apart swinging a rope at the slowest tempo possible while someone uses a stopwatch to record

In this activity, learners will measure the length of a shadow and use the distance from the equator to calculate the circumference of the earth.

In this activity, learners will decide together on a question about how far, long or high the group could reach together.

In this math activity related to light, learners assemble a photometer and use it to estimate the power output of the Sun.

In this activity, learners model ancient lunar impacts using water balloons.