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

This science fair project investigates why the number of visible stars changes from place to place.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

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

This science fair project idea explores whether talking to a plant will help it grow.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

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.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

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.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

This science fair project idea examines whether boys and girls differ in reflexes.

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.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

This project investigates the affect of storage temperature on microwave popcorn.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

In this investigation, three different juices are tested to determine which juice contains the greatest amount of vitamin C.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

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

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

In this project, waves of vibrations are experimented with using water in glasses.