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

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

This science fair project idea determines which method of hand cleansing is the most effective.

The objective of this science project is to determine the length of time for different seeds to germinate.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

This science fair project idea demonstrates that plants give off water.

Show your preschooler how to make a print of a butterfly using her hand as a tool--a great way to stimulate her sense of touch.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

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

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?