This plaster fossil activity is a fun supplement to preschool science. Use plaster to make imprints of your child's handprints, footprints and other objects!

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

Plants need water to grow. In this project we learn how plants transport water from their roots to their leaves

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

Let your kid experiment with textures among fabric and other materials that are smooth, rough, soft, or slippery—and then they'll make a texture book!

This adventurous art project will send kids on a scavenger hunt for fall materials they can use in their artwork. This craft also teaches kids about seasons.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

Examine the effect of pressure on carbonation in soda.

Teach your child about using pumps to move water in this simple and educational preschool science activity!

Put those fall leaves to use with this fun art activity. Kids paint and print leaves, to make a beautiful tablecloth, perfect for your next fall celebration.

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

It's easier than you think to make homemade play dough -- just a few pantry staples makes a natural version of the toy that kids have loved for generations.

Create a self-portrait from natural materials in this collage craft activity!

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

Develop your child's green thumb with this easy planting activity. These plants are guaranteed to grow fast and are "brown-thumb" proofed!

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

This science fair project idea explores how length affects the weight a bridge can hold.

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

Build a bird feeder science craft that brings birds to your yard, and a smile to the whole family's face.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

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