It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

This science fair project idea's objective is to become familiar with items your family regularly throws in the trash.

In this project children practice the scientific method while playing with puffy paint.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

This science experiment has students test whether a snail moves faster on concrete or dirt.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

The project investigates how water and movement affects erosion.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

In this activity your child will create their very own marble maze!

This science fair project idea investigates whether air has mass and weight.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

This science fair project idea teaches to understand and explore the concepts of crystal formation and dissolving substances.

This science fair project enhances the understanding and awareness of energy use and explores the concept of energy efficient.

This science fair project idea creates cool new colorful fabric pattern designs and experiments with the mixing of colors.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.