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

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

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!

Here's how you and your teen can stage your own formal debateâbeyond arguing why chores are unethical! Formal debates improve teens' critical thinking skills.

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!

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

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

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

In this science fair project, students make their own rain gauge to measure rainfall.