This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

What is vegetative reproduction? Find out how you can clone plants and regrow cabbage from a stem in this cool experiment!

Observe which kind of fresh long-stemmed flower will last the longest after being picked.

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.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

This science fair project idea determines which flower lasts the longest.

This science project is to discover which Black Walnut tree tissue contains the most concentrated amount of Juglone, a substance that works like an herbicide.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

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

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.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

Get a better understanding of water content by dehydrating carrots.

Check out this fun high school science fair project idea to identify features of a mushroom and learn how do humans use fungi to their benefit?

This science fair project idea focuses on the production of oxygen by plants during the photosynthesis process.

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?

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.

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

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

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.

This science fair project researches the most effective method to cut an onion and stay tear-free.

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.

This science fair project idea teaches kids the different functions of a leaf.

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.