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

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

In this science fair project, students make their own rain gauge to measure rainfall.

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

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

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

Have you ever noticed the ridges on a dog's nose? In this project, we take several dogs' nose prints and discover just how unique they are!

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

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.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

This science fair project idea explores whether white light can be separated into different colors.

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

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

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.

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

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

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

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

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

This science fair project idea examines whether boys and girls differ in reflexes.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.