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Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

In this project children practice the scientific method while playing with puffy paint.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

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 experiment you explore how tectonic plates move to create land and expand bodies of water.

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

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

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

In this project students experiment with making music using only glasses of water.

Take a dive into the candy jar with this yummy science experiment.

This science fair project idea experiments with spinning color wheels and optical illusions.

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

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

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!

Construct and experiment with a periscope using reflected light rays to gather an image.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

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

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

Discover flight initiation distance as you play around in the park with this fun bird watching project!

Is it a square or a circle? See if you can trick your friends with this zany science project!

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.