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

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

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

Discover whether cold or hot water from the faucet will boil faster on the stove.

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

Explore the chemistry of latex polymers with this outrageous, hilarious science activity.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

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.

This science fair project idea explores the relationship between oil and water in terms of density as well as hydrophilic/hydrophobic compounds.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

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!

Examine the effect of pressure on carbonation in soda.

Unlike other seed sprouting projects, this one allows kids to compare five different sprouts (either 5 herbs or 5 flowers) by watching them grow in a glove.

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

Your child can explore the wonders of science, and the concept of dehydration, along with creating a healthy and tasty treat!

This project determines what category of person is most likely to be ticklish.

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

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

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

Make a seed bomb and let your junior guerilla gardener spread flowers far and wide.

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

This science fair project idea identifies trees using a dichotomous key.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!