[Free Registration/Login may be required to access all resource tools.] Describes how tornadoes form, their effects, and how they are measured.

[Free Registration/Login may be required to access all resource tools.] Describes how tornadoes form, their effects, and how they are measured.

Come and learn more about the devastating effects of tsunamis. This site features video segments revealing the devastation tsunamis can cause and how tsunamis are formed.

This lesson will discuss the effects of the weather on living things. It is 3 of 3 in the series titled "Weather Systems."