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.

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

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.

First graders are learning to think like scientists. What better place to start, then by raising tadpoles? This hands-on activity explores science in action!

Explore solids and liquids with your young scientist by making gluep, a goopy substance that can behave like both a solid and a liquid!

Does your child love learning about dinosaurs? Does he like digging around in search of hidden treasures? In this fun activity he'll do both!

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

Did you ever think you could make colors disappear right before your eyes? This science experiment is just like a magic trick: now you see it, now you don't!

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.

Your kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.

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

Is our water polluted? Help your young scientist understand the importance of taking care of the environment with this simple experiment.

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!

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

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

What's cooler than an explosion? Not much! This simple science experiment lets kids build their own pop rocket. So put on your safety goggles and let her rip.

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.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

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

People have favorite flavors, but what about ants? Which ant food is the most popular?

Encourage your kindergartener to investigate and chronicle the weather she observes during the coldest months of the year.