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

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

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.

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.