This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

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

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

This science fair project idea researches the definition of ‘biodegradable’ and explores this in a real-life setting.

This science fair project idea explores whether white light can be separated into different colors.

This science fair project idea explores the relationship between oil and water in terms of density as well as hydrophilic/hydrophobic compounds.

This science research project challenges students to think of more effective lobster farming methods.

This science fair project idea is develops new or improved paper making techniques and encourages recycling.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

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

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.

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

Find out whether matte or shiny nail polish lasts longer.

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

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

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

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

In this fun activity, your child will create their very own solar oven to bake s'mores!

This science fair project idea examines liquids of different densities.

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

This science fair project idea examines whether boys and girls differ in reflexes.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

This science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.