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

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

This science fair project idea investigates the difference in reaction times between boys and girls.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

Use pepper and soap to discover some fun facts about the properties of water.

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

Make a backbone model to explore human anatomy and life science.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

This science fair project idea investigates if fats add to the flavor of food.

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

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 the ability of different whitening toothpastes to whiten teeth.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

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.

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

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

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.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.