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 investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

In this science project, the center of gravity is explored.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

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.

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.

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

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

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

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

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

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

This science fair experiment idea's objective is to understand the general concept of an acid and a base.

Cleaning can be a chore, but not with this sudsy experiment!