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In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

How fast does light travel in different mediums? Kids conduct a cool refraction experiment in materials like water and air for this science fair project.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

In this cool psychology experiment, study how companies air commercials to strategically advertise to viewers who will buy their products.

This project concerns activity happening millions of miles away, on the sun.

Determine whether fresh vegetables have more calories or less calories than canned vegetables.

Determine how proficient you are at making estimations and learn how to make more reasonable estimates.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

Kids will make a homemade electroscope and explain how it detects static charges through induction in this fun science fair project idea.

The objective of this science fair project is to determine the rate at which participants can respond to different patterns.

The purpose of this science fair project is to investigate whether we can simulate how craters are formed and predict their size and shape.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

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

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

Check out this cool science fair project on identifying rocks and minerals for kids.

This baseball science fair project explores the concept of an object's center of percussion to determine if the "sweet spot" has a scientific basis.

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

Science fair project that determines how we can change potential energy into kinetic energy.

The objective of this science fair project is to determine whether drawing with the right side or the left side of your brain will produce a better picture.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

This science fair project idea identifies and understands adaptations in birds.

This fun middle school science fair project idea explores the process of respiration and determines whether boys and girls have the same lung capacity.

How does bleach kill bacteria? Kids find out in this impressive bacteria science fair project by testing different concentrations on a safe strain of E. coli.

The apparent movement of the sun has been used to keep time since the bronze age. In this science fair project, kids plot solar time against mean solar time.