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Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Does skin thickness really decrease fruit spoilage? Find out 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.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

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

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.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

Examine the effect of pressure on carbonation in soda.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

How do organic materials become soil? This science experiment measures what materials biodegrade.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

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

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

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

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

How powerful is the reaction between baking soda and vinegar? Find out here!

In this science fair project, students create their own miniature salt flats at home.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

This science fair project examines how seeds hitchhike on animals and clothing.

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

In this design challenge, your child will make a bottle rocket using typical household items.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.