Why does it look like there is a man on the moon? Why does the moon look different every night? These are the focus questions of a lesson that prompts class members to observe and record the nightly changes of Earth's natural...

If Earth is modeled by a grapefruit, what planet could be represented by a golf ball? This activity uses everyday and not-so-everyday objects to create a model of the Solar System.

The purpose of this activity is to use scaling in order to give students an idea of the size of Mars in relation to the Earth and the Moon as well as the distance between them. The students will have to calculate dimensions of the scaled...