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

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!

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

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

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

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

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

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.

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.

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

Teach your child how butter is created by shaking up cream the old-fashioned way.

In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

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

Teach your child to dye eggs with natural ingredients from the grocery store. From pink to gold, these eggs are perfect for hiding, hunting or simply munching.

Create a self-portrait from natural materials in this collage craft activity!

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

In this design thinking activity, your child will choose an animal to research, learn about the animal’s habitat, and then replicate the animal's habitat using household items.