Got a birdwatcher on your hands? Bring the birds to your backyard by making a zany bird feeder using an orange and some string.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

Who needs paint, glitter, or crayons when you have natural art supplies right outside your front door?

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?

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

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

In this activity your child will create their very own marble maze!

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

Combine the science of physics with the fun of playing spy. Your young detective can make his own tiny looking glass. It's simple to make!

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

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.

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

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.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This science fair project idea investigates if fats add to the flavor of food.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

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