Mercury, Venus, Earth, and Mars are collectively known as the terrestrial planets. Although part of the same group, each planet has its own set of characteristics. Scholars explore the characteristics that make the planets unique and...

How do you properly illustrate the extreme size difference between two planets—Earth and Jupiter? With the help of jellybeans, of course! Create a scale model of Jupiter's mass compared to Earth using a fishbowl, 1,400 beans, and a...

Here's a reading exercise that uses an article about the inner planets to assess comprehension. After reading the article, kids respond to a series of questions using information from the text.

In this two-part reading comprehension worksheet, kids read a passage about the atmospheric layers surrounding the earth and then respond to a series of comprehension questions based on the passage.

The propellant needed for space explorations runs in the thousands, while paying to get the craft into orbit costs millions! In the second installment of three, two activities explore laws of conservation of energy and momentum. Using...