In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

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

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

This clay "painting" activity encourages and supports creative development and critical thinking skills.

This weather spinner will improve observation skills by encouraging children to examine and track weather details and patterns.

This activity is a great way to stretch the boundaries of your child's imagination and build up important critical thinking skills.

In this simple and social activity, children use size comparison skills to find objects in nature that are bigger, smaller, longer, and shorter.

This will encourage your child to utilize their observation skills, develop aesthetic awareness, build artistic drawing abilities and learn about the seasons.

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

Here's a household scavenger hunt that shows kids the natural sources behind everyday objects...and builds reading skills, too!

In this fun activity, kids practice measurement and boost fine motor skills as they learn all about how fossils form and even make a few of their own!

Does your child always demand to know why the sky is blue, how the sun moves across the sky, or where wind comes from?

Play Rock Tic-Tac-Toe, the perfect outdoor game for all ages. Help your child develop thinking skills and get away from the TV!

This fall, make a leaf crown that will encourage creative play and your child's interest in the natural world while you help them build fine motor skills.

Let your second grader pay homage to an ancient Olympic tradition with this modern day Olympic wreath!

Get your child outside to observe the clouds, and get a fun exercise in science, writing, and arts and crafts! Here's how.

What better way to nurture your child's imagination than by making a fairy house out of materials found in nature!