Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

This project investigates the affect of storage temperature on microwave popcorn.

This science fair project idea identifies trees using a dichotomous key.

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

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

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

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

In this project, different childproof containers are tested to see how childproof they really are.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

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.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

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.

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.