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Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Science fair project that examines condensation and the conditions needed in order for dew to form.

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

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

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

This science fair project idea investigates how color affects temperature.

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

This science fair project idea explores substances that cause a bubble to last longer.

This tricky building block challenge asks your learner to think creatively. They will work on their divergent thinking skills as they try to fill up an index card perfectly with building bricks.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

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.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

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.

This science fair project idea investigates how the shape of an object affects drag.

Develop your child's mathematical and engineering skills with this fun building brick challenge. In this activity, your learner will be challenged to create a boat out of building bricks.

In this activity, children will work on their mathematics and engineering skills as they attempt to recreate the Eiffel Tower out of building blocks!

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

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.

Cleaning can be a chore, but not with this sudsy experiment!

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.