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.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

People have favorite flavors, but what about ants? Which ant food is the most popular?

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

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

This science fair project idea investigates how the shape of an object affects drag.

How do organic materials become soil? This science experiment measures what materials biodegrade.

Before Twitter, birds were the ones tweeting, not humans. Have your child discover the magical sounds of nature while recording birds around his neighborhood!

In this hands-on activity, kids learn what it takes to foster seedlings into full-grown plants, all in a regular old soda bottle!

Study science with your first grader in this arts and crafts activity that models the reason why fall leaves change color with some paint and crayons.

Introduce your child to preliminary science concepts by challenging them to do this fun and simple cloud observation activity.

Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

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

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!

How do people move pianos and heavy furniture into tall buildings? Show your kids some pulley potential with this simple household exercise!

Kids are sure to be entranced by the magic of the ocean when they create their very own ocean in a bottle.

The goal of this project is to create an exciting topographical map out of dough.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

Do you think heat can affect a plant's growth rate?

This fun, think-outside-the-box activity introduces kids to gravity and other basic scientific concepts as they construct an impressive marble run!

Make all-natural dye from vegetables to create gorgeous homemade play-silks!

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

Show your child the solar system and let them explore the stars and space by creating a painting. It's a fun and easy way capture your child's imagination.