What happens when eyes see something that the brain knows cannot be true? In this science activity, the brain has to "fudge" it when interpreting what you see.

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

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.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

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.

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.

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

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!

Believe it or not, images that are cast upon your eye's light-sensitive screen (called the retina) are upside down. Here's a fun, fast experiment to prove it!

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

Bring a little science to your third grader's Christmas as you test out his sense of smell by exposing him to common Christmas scents found in your kitchen.

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.

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

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 to solve a crime scene investigation using an important forensics tool: oblique lighting.

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.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.