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In this activity, learners make "solar cookies," edible models of the Sun's outer layers using sugar cookies and toppings.

This is a classic exercise for visualizing the scale of the Solar System.

In this activity, learners explore the relative size of the Sun and Earth as well as the distance between them.

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

In this activity, learners explore how distance can affect the way we perceive the size of an object.

In this sunny day, outdoor activity, learners observe changes in shadows over time. The activity also helps to develop a sense of the Earth's motion.

In this two-part activity, learners explore the Earth and Sun's positions in relation to the constellations of the ecliptic with a small model.