The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

This experiment will test whether people are better auditory or visual learners and if there is a link between gender and either of these learning types.

This science fair project idea compares the cuteness reaction between genders.

This activity provides a solution to all those leaves on your doorstep, while also giving your child a fun science lesson.

Science fair project about different digital image file types, compares different encoding algorithms used to compress the data.

In this activity your child will make a coiling snake out of simple household materials, and also find out why they coil.

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

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

This fun elementary school science fair project idea helps students in designing an amusement park using their knowledge of forces and simple machines.

Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!

Invite your middle schooler to bungee jump ... with eggs! This experiment will demonstrate Newton's laws of physics in an entertaining way.

The objective of this science fair project is to observe the properties of friction and apply this knowledge to search for a near-frictionless surface.

This science fair project determines whether the types of plants growing in a Pacific Northwest rain forest environment are influenced by the soil acidity.

This science fair project ideaexplores whether cooking food destroys potential vitamin levels.

This experiment will determine how different kinds of light affects the strength of bakerâs yeast.

Research overview of architecural acoustics. Design and build a whispering wall from wood or plastic. Test which materials work best.

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

Learn with makes water molecules work with this fun and easy science activity!

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

This science fair project idea tests whether tall people have the ability to swim faster than people of average and shorter heights.

This activity turns your kid into the family weatherman. Plus, it teaches him to collect data and begin to understand graphing.

Study history of aerodynamics of arrow design to create a perfect arrow. Test arrows by shooting at an archery target.

Determine if gender affects the ability to identify different smells.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

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.

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 determines the quality of a given product.

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