Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

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

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.

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

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

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

In this design challenge, your child will make a bottle rocket using typical household items.

Take the art making outside: have your first grader make a clay relief sculpture of the natural world. This is a great activity for summer.

Take a dive into the candy jar with this yummy science experiment.

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.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

Cleaning can be a chore, but not with this sudsy experiment!

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.

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

This science fair project idea determines if the color of light affects the growth of plants.

Planning a beach vacation? Here's a cool nature craft you can make in the sand with your child.

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

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 year on Mother's Day, try this gift project that brings together an appreciation for gardening with a hands-on lesson in art history.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

This science fair project idea explores the different properties & interactions of sugar molecules.

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

How well can people recall what they have observed. Test your knowledge in this fun experiment.