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

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.

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

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

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

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

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

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

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Here's a fun activity that will have your child researching, collecting, and charting plant specimens from the neighborhood.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

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

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

The objective of this science project is to determine the length of time for different seeds to germinate.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.