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

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

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

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

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.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

This science fair project idea produces varying pitches of sound.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

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

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.

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

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

This science fair project idea investigates how magnetism can defy the force of gravity.

This science fair project idea investigates how color affects temperature.

Discover how and which salt melts ice the quickest.

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.

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

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

This science fair project idea discovers which brand of bubblegum produces the largest bubbles.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

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

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

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

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Determine whether butterflies like to drink sugar water, salt water, or plain water.