This experiment works due to a simple principle: plants need light. Build a shoebox maze and watch the plant work though the obstacle course, searching for sun.

Here's a household scavenger hunt that shows kids the natural sources behind everyday objects...and builds reading skills, too!

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

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.

This science fair project enhances the understanding and awareness of energy use and explores the concept of energy efficient.

This project examines whether people's taste perception is influenced by what they see.

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 experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

This science fair project idea investigates how the shape of an object affects drag.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Plants need water to grow. In this project we learn how plants transport water from their roots to their leaves

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

Teach your child about using pumps to move water in this simple and educational preschool science activity!

This science experiment has students test whether a snail moves faster on concrete or dirt.

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

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

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

The objective of this science project is to determine the length of time for different seeds to germinate.

The objective of this science fair project is to investigate salt water density.

This science fair project idea determines which method of hand cleansing is the most effective.

This science fair project idea explores how length affects the weight a bridge can hold.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

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.

What's cooler than an explosion? Not much! This simple science experiment lets kids build their own pop rocket. So put on your safety goggles and let her rip.

This science fair project idea investigates whether air has mass and weight.

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

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

Put an oatmeal box, a flashlight, and some construction paper together and you have the makings of an incredibly cool bedroom planetarium!