Earth is the third planet from the Sun and the largest of the Solar System's four terrestrial planets.

Test your understanding of terms associated with the water cycle (hydrologic cycle).

Learn the basics of the scientific method.

You'll be introduced to what you need to know about taking care of trees.

Test your knowledge of environmental issues

Test your knowledge of lead poisoning and win points!

The Fox River Cleanup Project is designed to reduce risk to human health and the environment due to the presence of PCBs in Fox River sediment.

Terms related to direction

This game reviews how the earth surface changes by plate boundary movement.

Learners identify earth's layers and tectonic plates from clues