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

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

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

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.

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

This science fair project idea examines whether boys and girls differ in reflexes.

This science fair project idea experiments with spinning color wheels and optical illusions.

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!

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

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.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

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.

Learn whether writing things down really makes things easier to remember.

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.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

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.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

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