Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

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.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

How is NASA able to launch something into orbit around the Earth? Learn about the relationship between gravity, speed, and orbit in space in this cool project!

Science fair project in which you will start a fire from scratch without using matches or a lighter.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

Science fair project that studies how perfumes are made in order to determine how we can capture a scent.

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.

Learn about the horizontal and vertical motion of a projectile in this cool physics science fair project idea for advanced middle and high school students.

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

This science fair project idea explores if an LED light can be powered by vegetables and/or fruits.

This science fair project idea determines the probability of a coin landing heads or tails.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

Science fair project that determines whether windmills can be designed so that birds will not feed on them. Will they discriminate between different patterns?

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

Check out this cool science fair project idea to explore non-chemical means of preserving fruits by using thermotherapy.

Check out this fun high school science fair project idea to investigate how the cell membrane regulates what moves into and out of cells.

Discover whether cheap saline solution bottle cleans and disinfects just as well as more expensive kinds formulated with different ingredients.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

The objective of this science project is to investigate why NASA has been using aerogel for the Stardust Project for collecting gas and dust from comets.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!