Tin can phones offer something modern versions don't—a fun project to make with a friend, and a dramatic illustration of vibration and sound waves.

Can you win a staring contest? Would your performance be influenced by your eyesight? Find out in this science fair project idea!

This science fair project idea explores the egg's thin membrane.

This project investigates whether chewing gum can help a majority of people with focus and concentration.

This science experiment has students test whether a snail moves faster on concrete or dirt.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

In this project students learn about the golden ratio and investigate if it can be used to predict people's assessment of beauty in others.

Why are some pennies shiny and others dark and dull? Find out with this cleaning copper coins experiment, which transforms dark pennies to bright ones.

Examine the effect of pressure on carbonation in soda.

This cool middle school science fair project idea helps students explore the role phototropism plays in the growth of green plants.

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

This project examines the affect of temperature on viscosity and surface tension of different liquids.

Check out this cool and free middle school science fair project idea on how to make a solar oven.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

This science fair project idea studies the acidity of rain water and whether the acidity is the same on all rainy days or does it fluctuate.

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

This cool air pressure demonstration has kids break a ruler using only a newspaper and atmospheric pressure.

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

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

What is vegetative reproduction? Find out how you can clone plants and regrow cabbage from a stem in this cool experiment!

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

This year on Mother's Day, try this gift project that brings together an appreciation for gardening with a hands-on lesson in art history.

A science scavenger hunt can be a fun way to learn about science. Test your child's knowledge of scientific terms with this science scavenger hunt.

Help your child add some flair to the family garden with pencil pinwheels!

Explore if planting seeds in a certain direction will affect how fast it germinates.

Will people still feel hungry once they eliminate grains from their meal? Find out in this science fair project idea!

Here's a science experiment that gives your kids a chance to see how fire needs oxygen to burn, with a little math and writing practice thrown in.

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