This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.

This science fair project idea compares the cuteness reaction between genders.

This two-ingredient dough, sometimes called "moon sand," is a quick and cheap way to let kids explore their senses, build fine motor skills, and play.

Make scented sensory cloud dough. Add it to a sensory table, activity station, or put it in a baggie for extra at-the-park entertainment!

Your preschooler will engage their senses by making a scented pumpkin to decorate your house.

This project examines which type of dance burns the most calories.

This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

Choose a timeline to live without technology. Keep a journal of all the issues encountered. What are the benefits and cons of modern technology?

In this fun activity, frozen cubes of paint provide your preschooler with a cool new way to paint a masterpiece.

This project examines who can jump higher, boys or girls, younger people or older, and how these two factors, gender and age, interact with one another.

Hold a magnet marathon! Explore the power of magnets with your kindergartener in this entertaining and simple science game.

In this project, a mnemonic is used to test how it increases memory.

Test of the effect of exercise on rote memory. Prepare a single list of 40 randomly chosen words. Have volunteers recall as many words as possible.

Here's a simple science activity that will help your child better understand how wells bring us water.

The objective of this science fair project is to assess the benefits of the game system for improving player performance following use.

The objective of this free science fair project is to examine the way in which the phases of the moon affect circadian patterns in mammals.

Looking for a project on machines? Get a fun elementary school science fair project idea to design a compound machine using your knowledge of simple machines.

This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

Science fair project which determines whether your current calorie intake will cause you to lose or gain weight over time.

This science fair project idea quantifies the effect of specific food sources on red worm (Eisenia foetida) livelihood.

This project examines what types of objects burn and which burn faster and cleaner.

This project investigates whether chewing gum can help a majority of people with focus and concentration.

This science fair project idea determines what factors influence an individual's reaction time using a web-based timed reaction test.

Will people still feel hungry once they eliminate grains from their meal? Find out in this science fair project idea!

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

Research camouflage products and techniques, test quality by timing volunteers. Calculate the average length of time to recognize the subject.

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

The project investigates how friction affects motion by using different surface textures.

This science fair project idea studies the differences in gender perception between people.