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

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

Examine the effect of pressure on carbonation in soda.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Teach your child some scientific basics as you explore the densities of various liquids in this fun experiment.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!

This science project allows students to study the psychology of happiness.

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

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

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

Find out whether putting something on top of a plant will inhibit its growth.

Based on the concept of water's "freezing point," this activity entails the lowering of water's freezing point to chill ice cream!

Make sourdough bread...and learn some colonial history and modern science in the process!

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

Take advantage of the fact that ink and water don't mix and introduce your kid to suminagashi, a Japanese form of art.

This science fair project idea determines the most effective method of preserving food.

This science fair project idea investigates whether plants can survive being frozen.

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.

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.