Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

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

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

This science fair project idea determines which method of hand cleansing is the most effective.

In this experiment you will replicate the mummification process by making a hot dog mummy.

In this project students experiment with making music using only glasses of water.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

Discover whether cold or hot water from the faucet will boil faster on the stove.

Discover how and which salt melts ice the quickest.

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

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

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

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.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

This science fair project idea explores the different properties & interactions of sugar molecules.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

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

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

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.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

Learn whether writing things down really makes things easier to remember.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.