Check out this cool science fair idea on why hard fruits become soft and learn how to compare the sugar content between ripe and unripe fruits.

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

Devise list of randomly chosen words, test how many words volunteers can remember. Compare results of adults and children. Which have better memories?

Take a trip to the pet store and then make a scrapbook to help your kindergartener learn the difference between living and non living things!

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

This research project teaches students about synesthesia, a neurological condition that causes sensory overlap.

Did you know magnifying glasses are magic? This hands-on activity has kids using magnifying glasses to engage with the world around them and look close to examine what they find.

Store seeds under three different environmental conditions. Plant seeds in carefully marked groups, watch them grow. Compare results.

Blend science and math to explore a very important first grade social studies question: does our planet contain more land or more water?

This preschool activity uses paint chips to help your child learn about different shades of colors and how to find different colors in nature.

Find out whether pacing in long-distance running actually acquires for drastic changes in finishing times versus running super-fast at the start.

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

Research historic methods of food preservation. Analyze alternative recipes and techniques of food preservation. Document success with photographs.

Here's a fun activity that will have your child teaching you for once, while you find out exactly what she is learning in school.

Explore the properties of light and color using photographic filters. Take pictures of color spectrum, compare results of different filters.

Research optical illusions and human auras. Understand why the probable cause of perception is mach bands.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

Study the effect of music on random rote memory. Examine the practical application of music in learning and education.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

Design and build a scale model representing living tree architecture. Then build a full-size version using one or more lives trees, and test your creation.

Is our water polluted? Help your young scientist understand the importance of taking care of the environment with this simple experiment.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

Check out this fun middle school science fair project idea on Newton's third law of motion and how you can change the speed of a rocket.

The goal of this science fair project is to investigate the effect of irradiation on the germination and growth of vegetables, such as the tomato plant.

Determine whether magic salt is more effective at melting snow than regular salt. Pour one ounce of salt over the ice cubes, compare the melt downs.

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

Check out this free high school science fair project to explore the physics of the Coriolis effect with a homemade Foucault Pendulum.