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In this activity, learners investigate the formation of craters. Learners will examine how the size, angle and speed of a meteorite's impact affects the properties of craters.

In this space science activity, learners explore transits and the conditions when a transit may be seen.

In this activity, learners build a simple pinhole viewer. They use this apparatus to project images from a variety of light sources, including a candle, the Sun, and the Moon.

In this activity, learners use basic measurements of the Earth and pieces of rock and iron to estimate the mass of the Earth.