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Players take turns adding shapes made of three squares to a grid. They try to fit their shapes on the grid in a way that blocks the other player.

In this activity, learners explore their eye pupils and how they change.

In this optics activity, learners experiment with polarizers (small dark rectangles) to examine light intensity.

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 optics activity, learners use glass and water to demonstrate total internal reflection (TIR).

In this activity, learners investigate how bats use echolocation to navigate. One learner is assigned to be a bat, while the other learners are selected to be either moths or trees.