In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

Slip some science into storm watching with a homemade rain gauge!

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

In this activity, your child will learn about a style of gardening that uses moss, also called "kokedama."

Help your child plant a "tea garden": a garden made of herbs for making teas.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

This science fair project examines how seeds hitchhike on animals and clothing.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

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 teaches kids experimental design and how to test if subjects can really sense if they are being watched.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

Instead of the traditional egg hunt, try this creative variation that will result in a beautiful Easter garden.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

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

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.

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

Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

This science fair project investigates why the number of visible stars changes from place to place.

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.