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

In this activity, learners explore the relative sizes and distances of objects in the solar system.

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 make a scale model of the Solar System and learn the real definition of "space." Learners use the online calculator to create an appropriate scale to use as a basis for thei

Learners build a model of the planets in the solar system. In their model, the planets are spaced in their relative distance from the Sun.

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