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In this activity, learners actually feel the difference in energy required to light two different types of light bulbs: incandescent light and LEDs.

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

Learners explore their surroundings while reasoning about categories and counting.

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