Students examine the constant changing of the Earth's atmosphere. After labeling the layers of the Earth, they identify various processes inside the Earth that can cause gases to be emitted. Using the internet, they research how the...

In this spy aircraft worksheet, students watch a video about unmanned aerial vehicles and other aircraft used by the military and answer 20 questions.

Fifth graders begin the instructional activity by identifying the different types of natural resources. As a class, they discuss how environments are destructed and how the loss of one natural resource can affect the economy. Using a...

This article (in Arabic) explains what depleted uranium is, how it is used, and its adverse effects on the environment and human health. Much of the information here is based on research done about the effects on European and US soldiers...