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.

Examine the effect of pressure on carbonation in soda.

Is it a square or a circle? See if you can trick your friends with this zany science project!

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

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

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

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

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

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

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

This science fair project idea explores how length affects the weight a bridge can hold.

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

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

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

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

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.

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

Science fair project which determines whether people are more likely to follow rules if they are easy to understand.

This science fair project idea examines the reason boats are shaped and engineered.

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.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.