All ages will enjoy learning about or testing their knowledge of the natural water cycle in this engaging game.

Help Whoosh bounce warmth from the sun into the ocean to start the water cycle. Move to the next level to melt the snow and return the water to the ocean. How long will it take you to make evaporation, condensation and precipitation?

How many tries will it take for you to complete this puzzle?

Learn about the components of the photovoltaic system structure. Want to higher score? Start the game again and complete the puzzle in fewer tries.

Also check out the NEED.org website for elementary solar kits.

In this activity, students will learn about sea ice and land ice. They will observe ice melting on a solid surface near a body of water and ice melting in a body of water. Prior to the activity, students will predict what each situation will do to the level of water and then compare their prediction to what they observe.

An important part of understanding sea-level rise is understanding thermal expansion of water. Thermal expansion accounts for about half of the measured global sea-level rise. Students will build a model using everyday items to demonstrate that water expands when heat energy is added.