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

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.

How do we know that air exists when we can't see it, taste it, or touch it? Here's a classic experiment that will teach your kid some basics of aerodynamics!

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

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

Help kids tap into their inner inventor by teaching them how to make peanut butter through trial, error, and lots of taste testing!

Kids will learn how to clean fish tank the natural way. Add catfish to the tank and see if your water gets cleaner.

Learn how to grow an avocado plant indoors with your 1st grader in this hands-on gardening activity.

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

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.

This classic children's game demonstrates how sound travels through air vs. through a solid.

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

Check out this silly game that will put your kid's animal habitat knowledge (and acting skills) to the test.

April showers may bring May flowers, but your child can preserve the beauty of spring's bounty all year long with this simple craft project!

Recycling may be a confusing concept for your little one, so take the time to teach them the magic of compost - right in your own backyard!

Make a lei and bring a touch of the tropical lifestyle into your home!

Help your child create a garden journal sketchbook as she observes and records the natural world through the changing seasons.

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

Help your child measure breezy weather in her environment by making a wind vane for kids, a simple version of the classic scientific measurement tool.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

This super fun science project, perfect for young children, combines crafts, dressing up as animals, outdoor play, and life science learning.

Learn how different types of soil affect how animal tracks form in this experiment!

When critters protect themselves by taking on the patterns of nature, it's called "camouflage." Play this camouflage matching game with your child!

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

Satisfy your kindergartener's fascination of different sounds with this easy science project, where they'll use their ears instead of their eyes to identify sounds!

Kids are sure to be entranced by the magic of the ocean when they create their very own ocean in a bottle.