Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

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

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

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

Conduct a simple science experiment to see if flowers from your garden pass the acid-base indicator test with this exciting chemistry activity.

Here's an experiment that will have your child experimenting with cake ingredients to learn about the chemical reactions that happen when a cake's in the oven.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

Invite your third grader to do taste test science to observe how a strawberry tastes when it is paired with various condiments. The results may be surprising!

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

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

Kids conduct a simple birdseed experiment to figure out what kinds of birds live nearby in this fun science activity.

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

Discover which fabrics shrink the most in the wash and why.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

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

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

In this activity your child will create their very own marble maze!

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

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.