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What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

In this science fair project, young children notice and track changes in trees throughout the year.

Free science fair project idea that examines the impact of gravity on a dropped carton of eggs. Design a device to protect the eggs from cracking.

This project explores the effectiveness of various common household ingredients in cleaning tarnished and oxidized coins.

Make frog feet sponge prints with your child for a fun and educational crafts activity.

Create your own light bulb and test filaments of different thicknesses to see which keeps the bulb burning for the longest time.

Get your child outside to observe the clouds, and get a fun exercise in science, writing, and arts and crafts! Here's how.

Check out this fun science fair project idea to explore fun facts about fruit juices and learn why do juices turn bad in the fridge.

Learn about calorimetry, make a bomb calorimeter, and experiment with combusting different nuts to see which one produces the most energy!

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

How fast is the wind blowing? This science experiment provides step-by-step instructions to help you answer this question.

The objective of this science fair project idea is to determine whether frozen vegetables have more nutrients than canned vegetables.

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

Explore the wave-particle duality of light! Learn how light can behave as both a wave and a particle in this cool physics science fair project idea for kids.

The objective of this science fair project is to examine the cleanliness of salad preparation techniques.

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

Science fair project that determines which materials cause the most friction by sliding blocks of wood down a ramp.

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

Try this chemistry experiment with your curious kid and get some "shocking" results!

Measure the densities of various fruits and vegetables to determine if there is a relationship between density and nutritional value.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Pair a planetarium visit with this fun art project that mimics the look of far-off galaxies.

In this "paper and pen" science fair experiment, students will research the difference between standard time and astronomical mean time.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

Teach your child some scientific basics as you explore the densities of various liquids in this fun experiment.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

There are hundreds of properties in rocks which you can describe, so get your geology goggles on and get ready to rock your child's science skills.

Make an adorable nut buddy by crafting nature people out of nuts in shells! Buddies will take on their own personalities depending on the materials you use.

Has your child ever played weatherman? Try this science activity that lets kids try their hands at observing and predicting the weather.