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

This science fair project idea explores whether talking to a plant will help it grow.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

In this project students experiment with making music using only glasses of water.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

Could there be toxic chemicals lurking in the cupboards and closets of your home?

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

The goal of this project is to create an exciting topographical map out of dough.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

Science fair project that examines condensation and the conditions needed in order for dew to form.

This science fair project idea investigates how magnetism can defy the force of gravity.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

This science fair project idea explores substances that cause a bubble to last longer.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

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.

Do different types of oil mix or stack? Find out in this science fair project idea!

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

Here's a fourth grade science craft with lots of benefits: it's good for birds, good for your child's learning, and good for the planet, too.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

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

Determine whether butterflies like to drink sugar water, salt water, or plain water.

Examine the effect of pressure on carbonation in soda.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!