Encourage a group of third graders to play this fun game of Whistle Hide-and-Seek as a warm-up to get them prepared for finding a "lost" camper.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

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!

Learn all about balance and motion as your child designs a corn maze!

Give some of your local ladybugs a warm place to stay for the winter by making a ladybug home with recycled materials.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

Using a toy race car kids create a visual model of the Doppler Effect.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

Your kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.

Your kindergartener will make prints of his favorite fruits and vegetables and learn how to organize and assemble his very own book.

Who needs paint, glitter, or crayons when you have natural art supplies right outside your front door?

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

Create a brush pile to help wintering wildlife stay warm and cozy through the winter.

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!

Explore solids and liquids with your young scientist by making gluep, a goopy substance that can behave like both a solid and a liquid!

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

Alive or not? This yeast experiment you can conduct with your little scientist explores the answer to this timeless question.

Learn how different types of soil affect how animal tracks form in this experiment!

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

Test whether plants can grow without sunlight and water.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

Your second grader will love this simple soda bottle race car activity. Make a ramp and customize your car for an entertaining way to learn scientific concepts.

This activity provides a solution to all those leaves on your doorstep, while also giving your child a fun science lesson.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

Create a habitat for a butterfly right in your own backyard, and build your first grader's science knowledge while you're at it.