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Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

Science fair project that uses iodine solution to demonstrate how starch is turned into sugar when it is chewed in the mouth.

How powerful is the reaction between baking soda and vinegar? Find out here!

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

In this science fair project, students create their own miniature salt flats at home.

In this science fair project, students investigate how different colors influence appetite.

In this science fair experiment, middle school students evaluate whether tone of voice can influence our ability to remember a list of everyday objects.

This experiment will evaluate if the environments that people work in affect their speed and accuracy in performing mental tasks.

This science fair project examines how seeds hitchhike on animals and clothing.

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

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

Research history of programming language. Design a new or improved programming language. Create a display that illustrates the features and improvements.

Test ability to distinguish between natural and artificial aromatherapy oils. Select fragrance, natural and synthetic sample. Volunteers state preference.

Create a colorful, informative display that illustrates the properties of blood cells. Prepare slides using samples of fresh raw beef or chicken bone marrow.

Describe the lives of commercially raised chickens. Contact local chicken farmers for information and advice. Write a detailed report about farming techniques.

This science fair project idea explores discover whether mixing solutions of equal distances from neutral pH (7) will create a solution close to pH 7.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

This science fair project idea compares whether ionic dryers leave hair in better condition than non-ionic dryers.

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

Determine how proficient you are at making estimations and learn how to make more reasonable estimates.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

What is a series circuit and how does it work? Learn about voltage, electrical current, and resistors in this cool science experiment!

How fast does light travel in different mediums? Kids conduct a cool refraction experiment in materials like water and air for this science fair project.

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

The objective of this science fair project idea is to explore which brands of "anti-fade" shampoos work the best to keep hair color looking fresh.

Discover the interactions of synthetic dyes and natural dyes on natural and artificially-made fabrics.

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

Determine the differences between various bicep exercises, both in terms of how much muscle exertion they create and how they affect your heart rate.