Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

Is garlic antibacterial? Antimicrobial? Kids find out by using common kitchen equipment and ingredients in this cool and easy microbiology science fair project.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

Demonstrate which cooking method gets rid of the most fat.

Determine how salinity affects the circulation of warm and cold water. Note whether the warm water mixes or forms a layer with cold water.

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

In this science fair project, students will use methylene blue to study the presence of aerobic bacteria in milk.

This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?

This experiment will examine and precisely measure the amount of sugar in various sodas.

Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.

Will your liquid weigh less once you remove the fat from it? Find out in this science fair project idea.

This science fair project idea discovers the effect of (high) heat on animal cells.

This science fair project explores discover whether the acidity of sour candy is comparable to that of battery acid.

Check out this fun science project idea to explore different types of starches and learn how removing starch affects the quality and taste of food.

This project explores how and how much one family can reduce the amount of garbage they accumulate over a three month period.

This experiment will explore whether adding different substances to a gel affects its strength.

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

Learn about how we localize objects and beings in space through sound and about monaural auditory mechanisms and binaural auditory mechanisms.

In this science fair project, students examine how temperature affects sugar transport within a plant.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

Science fair project that evaluates how well clothing fabrics block UV radiation by examining the properties of different fabrics.

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

Check out this cool science fair project idea to explore the relation between onions and eyes and how to prevent eyes from tearing while cutting an onion.

Store bowls of fresh fruit in differently lighted environments. Contrast freshness based on appearance.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

This science fair project examines the different composition of fungi and plants.

This science fair project idea explores whether dry ice will cool a beverage faster than wet ice.