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

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.

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

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

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.

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

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!

This science project challenges students to take learned information about weather and climate control and apply it to come up with creative ideas of their own.

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

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