In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

Test your friends to find out if you can replicate the placebo effect's incredible results.

Word color association is just a fancy way to talk about the way we connect colors with words.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

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.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

Cinnamon is tasty, but does it have super powers as well? Find out if cinnamon can repel mosquitoes in this outdoorsy experiment.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

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

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

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

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

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

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

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

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

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.

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

This biodiversity project examines the biodiversity in your own backyard.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.