In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

Find out whether putting something on top of a plant will inhibit its growth.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

Jazz up your patio or backyard with hip and quirky planters made from simple Mason jars.

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

Make a planter full of delicious seasonings and classic grilling vegetables, great for a Fatherâs Day gift or a fun start-of-summer outdoor activity.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Find out which type of sponge holds the most water.

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

This project examines whether playing music during class helps students learn or if it distracts students from learning.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.

Bring the fun of gardening indoors! By stuffing a simple pair of pantyhose with a few grass seeds on top, your child can grow her very own plant pet.

Help your kid feel like a superhero with this safe and fun science experiment that creates an electrical charge that's like a mini lightning bolt!

What happens when colored beams of light mix? You might be surprised.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

Discover how and which salt melts ice the quickest.

In this science fair project, kids will be able to see where germs reside on their hands while gaining insight into the benefits of thorough hand washing.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.