Isabella and Amalie are in Copenhagen, and they saw a periscope in the water. Join them, and find out what this is all about. This module discusses how to use a periscope, what light sources are, and how light impacts shadows.

Explore the ways to reduce water pollution and strategies for conserving water with this module. The modules reviews over ways water is polluted and how individuals can conserve water.

[Free Registration/Login may be required to access all resource tools.] Discusses water and where it occurs on Earth, gives an overview of the water cycle, and explains how the ocean is an integral part of the water cycle and is...

Did you know that water has different states? Learn all about it with Boris in Copenhagen.

Water has the ability to absorb lots of energy before it heats up. You can demonstrate this trait by trying to pop a balloon (containing water) with a flame.

[Free Registration/Login may be required to access all resource tools.] Discusses how flowing water causes erosion; describes how runoff, streams, and rivers change Earth's surface; and identifies features caused by groundwater erosion.

David is exploring the Titanic shipwreck. He needs to stay warm down below in the water. Help him learn about heat and temperature.

[Free Registration/Login may be required to access all resource tools.] Demonstrates how water and wind move soil, which can cause issues for farmers.

This resource demonstrates atmospheric pressure using a soda bottle and water.

Zander is on a camping trip. Join him, and help him learn about boiling and melting points.

Watch the masterpiece you create when you dissolve 10 gobstoppers in a bowl of water. Video explanation included.

This activity will teach students about the three states of water found on our planet: solid, liquid gas. They will learn to distinguish the differences between these states and will be able to give examples of each.

Explore the properties of water and observe how drops of water can act as a magnifying lens.

Try this at-home science experiment to learn that a glass of water molecules contains a whole lot of space.

Turn your pumpkin into a volcano science activity shows what happens when water, food coloring, dish soap, and vinegar are mixed with baking soda. Click on the link to watch Scientist Joe make the Jack-O-Cano experiment.

Presents a procedure for getting a paper clip to float in water. Following the procedure, the site gives a brief explanation and discussion of surface tension.

[Free Registration/Login may be required to access all resource tools.] Discusses wind energy and hydroelectric energy.

[Free Registration/Login may be required to access all resource tools.] Discusses what causes weather, what humidity is and its role in the weather, how clouds are classified, and types of precipitation and how they form.

Investigate the properties of air. Observe the water vapor present in our exhaled breath.

This tutorial by Bill Nye introduces the concept of a cohesive force through an experiment involving a penny and droplets of soapy water.