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This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?

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

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

Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

Allow your first grader to get his artwork outdoors this summer by letting him create a garden art box for his arts and crafts supplies.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

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

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

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

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

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

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

In this science fair project, young children discover what happens when two fluids that have different densities get together.