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This science fair project examines how carnivorous plants digest insects, and whether the plant can use nitrogen in the soil to compensate for lack of insects.

Discover which absorbent material is the best; the Shamwow, paper towels, or cotton towels.

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

What is a series circuit and how does it work? Learn about voltage, electrical current, and resistors in this cool science experiment!

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

Learn about our response to scents that existed in our environment over evolutionary time and consider why scents might affect our mood state.

The purpose of this science fair project is to learn which substance best preserves apples. Learn about enzyme interactions in fruit and scientific processes.

Discover which fabrics shrink the most in the wash and why.

Learn how to make a periscope with this cool engineering science fair project idea, and learn about optics to learn how a periscope works.

In this science fair project, students determine whether a bean plant grows faster and taller using a traditional soil planting method or hydroponic method.

Do you think heat can affect a plant's growth rate?

Kids make strong bubbles to investigate the effect different additives have on bubble life in this cool science fair project idea.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.

This science project challenges students to study the salt content in tap water and learn about electrochemistry.

This science fair project idea investigates how different disinfectants work in killing germs.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

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

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 project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

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

Check out this cool science project idea to explore how temperature creates annual rhythms that govern plant growth.

Learn how to use the Punnett Square to predict the gene combinations of dominant and recessive traits in this fun and easy genetics science project!

In this free science fair project idea, kids will conduct an easy electrolysis of water experiment to test solutions of salt, baking soda, tap water, and more.

Learn about our cognitive capacity of attention and to learn about factors that influence attention.

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

Science fair project which helps you determine your latitude by using an astrolabe, which measures the angle between the North Star and the horizon.