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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!

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

This science fair project teaches students about wilting and browning of salad greens.

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

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

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

This science fair project idea investigates how the shape of an object affects drag.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

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

Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

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

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

Check out this cool science fair project on identifying rocks and minerals for kids.

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

Plants and light seem to be good buddies, but how far does the friendship really go?

Will the shape of an ice cube impact how fast the ice melts?

This science fair project idea explores how length affects the weight a bridge can hold.