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This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

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 science fair project, students use the streak test to tell minerals apart from each other.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

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

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 which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

This project compares the strength of one, two, and three-ply toilet paper.

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.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

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

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Find out whether a longer airplane will fly farther or a wider paper airplane.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

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

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

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

This science fair project idea explores whether talking to a plant will help it grow.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

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

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!