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In this activity, learners use a simple 3D model to discover why the Moon has phases.

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

In this activity, learners use binoculars (or a telescope) to identify and track sunspots. If using binoculars, learners need a pair that can be secured on a tripod.

In this math activity related to light, learners assemble a photometer and use it to estimate the power output of the Sun.

In this online interactive challenge, learners choose items to represent the Earth or solar system, then determine other items to represent the Moon, or Milky Way based on their relative size.