This science fair experiment examines the relationship between gender, age, and smiling.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

Kids make strong bubbles to investigate the effect different additives have on bubble life in this cool science fair project idea.

This science fair project idea models industrial oil spills and determines if they have an impact on wildlife living beneath the surface of the water.

This science fair project examines whether ocean water can be made safe to drink.

This science fair project idea tests the efficacy of both synthetic and natural antibiotics.

Ethanol can be used as an alternative fuel! The purpose of this experiment is to identify a starch plant that produces the largest quantity of ethanol.

Science fair project that studies how perfumes are made in order to determine how we can capture a scent.

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!

This science fair project idea tests the efficiency of short term memory.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

Measure the effectiveness of detergent containing a UV-absorbing compound in blocking UV-A radiation. Use black light and UV detecting beads.

Science fair project that compares tree leaf size and shape based on the leaf's position in the tree. Is their is a noticeable difference between high and low?

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

Science fair project that models the subterranean movement of water, using Darcy's Law. How can this information be used in hazardous material spills?

Science fair project in which you will build your own algae photobioreactor which will meet the physiological requirements of algae for maximum growth.

What if the shape of the Earth weren't spherical? How does its shape affect our gravity, climate, and tides? Model these questions in this cool project!

Construct a model of radioactive decay. Learn more about radioactive decay by modeling the process using coin flips.

What is vegetative reproduction? Find out how you can clone plants and regrow cabbage from a stem in this cool experiment!

How is NASA able to launch something into orbit around the Earth? Learn about the relationship between gravity, speed, and orbit in space in this cool project!

This science fair project idea determines whether dogs can be trained faster using a food reward or praise.

Investigate the different ways in which objects and organisms can be classified, create your own. then have volunteers classify using their own systems.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

Build a magnetic linear accelerator using a ruler, neodymium magnets, and small metal balls in this fun science fair project exploring magnetic propulsion.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

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

This fascinating science fair project explores eye color genotypes.

Science fair project that compares the relative carbon dioxide concentrations of various gases, including different types of vehicle emissions.