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.

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.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

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.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

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

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.

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

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

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

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

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.

Your child helps the environment while saving your family money in this fun and rewarding "Gas Guzzlers" competition.

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

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.

This science fair project idea determines the most effective method of preserving food.

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

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 which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

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

This science fair project teaches students the differences between fruits and vegetables.

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

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

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.

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

Incorporate some math and science thinking into your annual fall fun with this pumpkin investigation activity! Your child will have a blast investigating various ways of measuring pumpkins, making estimates, taking measurements, and recording their findin