This science fair project idea determines the most effective method of preserving food.

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

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

This science fair project teaches students the differences between fruits and vegetables.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

This science fair project idea examines the reason boats are shaped and engineered.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

This project determines what category of person is most likely to be ticklish.

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.

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.

This science fair project idea explores the different properties of matter.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

This science fair project idea experiments with spinning color wheels and optical illusions.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

This science experiment tests if dog saliva can really help heal wounds.

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