Get your child math and science savvy with this fun outdoor classification game. Using chalk, your child will classify what she sees in the natural world.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

Find out whether a longer airplane will fly farther or a wider paper airplane.

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?

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

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

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

This fall, make a leaf crown that will encourage creative play and your child's interest in the natural world while you help them build fine motor skills.

Recreate the fantastic phenomena of solar eclipses with your child using just a flashlight, a quarter, and her very own face!

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

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

Cleaning can be a chore, but not with this sudsy experiment!

Explore scientific concepts with this experiment that introduces kids to the scientific method!

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.

The goal of this project is to create an exciting topographical map out of dough.

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.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

This clay "painting" activity encourages and supports creative development and critical thinking skills.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

After completing this fun science project, your child will have a better understanding of plants, and they may even develop a green thumb in the process!

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?