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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 flipbooks of drawings showing the progression of a Total Solar Eclipse.

Learners model the Sun-Earth-Moon system to show what causes the Moon's appearance to change when viewed from the Earth.

Learners investigate why the Sun and Moon appear the same size in the sky even though the Sun is over 400 times larger in diameter.

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.