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Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

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.

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

In this activity, your learner will be challenged to create their own tic-tac-toe grid out of building blocks.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

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

This science fair project idea discovers which brand of bubblegum produces the largest bubbles.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

This project investigates the affect of storage temperature on microwave popcorn.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great 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.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

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