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In this quick activity, Dracula has a hole in his house and learners help solve the problem by using a mirror and protractor to reflect incoming light out of his house.

In this activity, learners use a laser pointer, empty soda bottle, rubber plug and water to demonstrate total internal reflection.

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

Learners explore their surroundings while reasoning about categories and counting.

Use this Moon Map Guide to help learners identify features on the Moon, while looking through a telescope.

This is an online game about stopping distance. Learners choose one of three vehicles and one of three speeds.