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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.

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

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

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.

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.

Construct batteries that make electricity from fruits with this fun science fair project.

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.

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

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

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

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

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!

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

Science fair project which teaches you how to make your own homemade glue by combing curdled milk with baking soda.

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.