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Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

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 investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

This science project allows students to study the psychology of happiness.

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

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

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

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.

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

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

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.

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

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

This science fair project idea produces varying pitches of sound.

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

Science fair project which examines the relationship between frequency of spider web vibration and spider's response time.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

This experiment tests which gender is better at catching how a magician performs his tricks.

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

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

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Construct batteries that make electricity from fruits with this fun science fair project.

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.

Find out whether matte or shiny nail polish lasts longer.

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!

This science fair project investigates why the number of visible stars changes from place to place.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

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.