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.

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

Plants and light seem to be good buddies, but how far does the friendship really go?

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

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

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

This project compares the strength of one, two, and three-ply toilet paper.

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

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

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.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

This science fair project idea experiments with spinning color wheels and optical illusions.

Learn how different types of soil affect how animal tracks form in this experiment!

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

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

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

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

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

Discover whether a metal will expand under hot water.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.