In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

Will male or female hair grow faster? Find out in this science fair project idea!

This experiment uses Rosenberg's Self Esteem Scale to evaluate if there is a correlation between family size and self esteem.

Science fair project that determines whether mass and weight are the same or different.

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

The purpose of this science project is to determine which chemical best lowers the temperature of water in a cold pack and if the amount affects its use.

The goal of this science fair project is to investigate the effect of irradiation on the germination and growth of vegetables, such as the tomato plant.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

In this science fair project, students create their own miniature salt flats at home.

Compare the whitening abilities of four different brands of whitening toothpaste to see which one whitens the fastest and which one whitens the most.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

A project to reinforce learning about the layers of the rainforest, rain forest ecosystem, and the greenhouse effect.

This science fair project examines the vein structure (venation) of leaves in order to determine the class of the plant sample.

Are you ready to pilot your own airplane? Well, then take to the skies with this high-flying project!

In this free science fair project idea, kids will conduct an easy electrolysis of water experiment to test solutions of salt, baking soda, tap water, and more.

Become familiar with ratios and learn how to measure the diameter of the Sun and the Moon in this fun science fair project idea.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

Learn how to use the Punnett Square to predict the gene combinations of dominant and recessive traits in this fun and easy genetics science project!

Check out this fun science fair project idea to learn how alkaline batteries convert chemical energy to electrical energy?

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

In this challenge, students are tasked with creating a model roller coaster that a marble can travel through.

Is garlic antibacterial? Antimicrobial? Kids find out by using common kitchen equipment and ingredients in this cool and easy microbiology science fair project.

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

Examine the impact of insecticides on plant growth.

Find out whether packaged seeds actually do expire in this new science fair project idea.

Learn about the greenhouse effect- and get great science fair experiment ideas. Read more.

Determine which video game elevates the heart rate best and burns the most calories.

Explore which teeth-whitening products work best - Whitestrips or Whitetrays.

Observe if dissolved aspirin will help plants grow healthier and faster in this science fair project idea.

This science fair project idea investigates if webbed feet help a duck (and others) swim.