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Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

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.

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

Making your own glass cleaner is easy, effective and inexpensive!

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

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.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

Do different types of oil mix or stack? Find out in this science fair project idea!

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

This science fair project idea produces varying pitches of sound.

This project examines whether people's taste perception is influenced by what they see.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

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

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.