This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

This science experiment tests if dog saliva can really help heal wounds.

Is it a square or a circle? See if you can trick your friends with this zany science project!

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

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?

This science fair project idea determines if the temperature of rubber effects how high it bounces.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

This science fair project idea explores how far the âdanger zoneâ is from different types of caution signs.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

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

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

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

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

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

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

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

Science fair project that determines whether mass and weight are the same or different.

This project examines whether people's taste perception is influenced by what they see.