Learners experiment with density of ice, and examine how density affects how icebergs float in water.

Pupils observe the process of transpiration in leaves. They measure how much water a leaf gives off in a 24-hour period, calculate the volume, and answer discussion questions.

Young scholars test samples of water to determine how a chemical water softener affects water's ability to form suds. After collecting their data and analyzing their results, students answer follow-up questions about their lab.

Students view a variety of scientific images and animations. They explore the world of science and visual art. Students enrich their knowledge through animation examinations of thoughts and feelings and awesome color rainbows of...

In this solar winds activity, students determine the strength of magnetic storms in terms of the size of the change they make in the Earth's magnetic field. This worksheet has 3 problems to solve.

An interactive to help understand and appreciate the strength of severe weather storms.

Photos, diagrams, and other images related to weather.

Description of tropical storms and links to several case studies. This site includes information, such as how tropical storms are named, how they occur, and how they are structured.

Use a thermometer to measure the air temperature in several places around the school.

Find out what makes a tornado happen and if tornadoes can be prevented with large walls. Includes video.

Delve deep into the anatomy of Hurricane Katrina through this interactive produced by PBS. The interactive contains slides, videos and charts that begin with the birth of Katrina. Follow her path as she gains strength and finally falls...

There is a table that has links to hurricanes in the Atlantic from 1995, East Pacific from 1997, West Pacific from 1996, South Pacific from 2000, and South India from 2000. This page has a satellite map and the Saffir-Simpson Scale.

[Free Registration/Login Required] An informational text about different people and organization that help during an emergency. A question sheet is available to help students build skills in reading comprehension.

You can find out the conditions for a thunderstorm, the life cycle, types, and wall clouds.

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations. This photograph captures several lightning strikes during an early evening thunderstorm.

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations. Utilizing time-lapse photography, this photograph captures multiple cloud-to-ground lightning strokes during a nighttime...

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations. Using time-lapse photography, this image captures numerous cloud-to-ground lightning strokes during a nighttime thunderstorm in...

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations. Originally appearing in National Geographic Magazine, this photograph captures a lightning strike above Norman, Oklahoma.

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations. This photograph of a hailstone is measured on a ruler to indicate a diameter of 6 inches (approximately the size of a grapefruit).