Learners hypothesize about and experiment with soil erosion in this hands-on activity.

Want to get your bookworm interested in science? Check out this cool activity that teaches kids how to write science fiction!

Try this activity with your child to explore what happens to rain (and the living things that need it) when it becomes polluted.

Can you think of a way of cleaning dirty water using the sun? In this activity, you will be making a "solar still" that is able to do just that!

Kids will love making clouds and learning how to make a water cycle model in this fun science fair project idea that explores evaporation and precipitation.

Test your skills as a weather forecaster, and learn some science terms on the way!

Show your child how to construct a homemade thermometer. It's hands-on fun and a great way to learn about this important instrument!

Science fair project that helps you create your own compost pile in order to test the efficiency of different methods of composting.

Here's a guide to starting a community clean-up project from scratch.