This science fair project idea investigates how images are influenced by changes in light.

Science fair project that compares tap water and bottled water for the presence of common impurities.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Kids make an electromagnet in this electromagnetic induction experiment to learn about induction, current, and the right-hand rule.

This science fair project idea produces varying pitches of sound.

Science fair project which measures the amount of heat energy released by a burning candle by calculating how many calories of heat it emits.

This science fair project investigates which of two learning modes most commonly used in school, visual and auditory, is better for information retention.

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.

In this fun science experiment, make a balloon car and test it on different surfaces to learn about sliding friction and rolling friction.

In this project, students will learn what and how foods are grown in rain forests and if there are sustainable methods that can be used.

Generate gas from garbage. The purpose of this science fair project is to simulate how landfills generate gases that can be used to create energy.

Science fair project that teaches you key definitions of molecular science, and how different isotopes of an element affect the relative atomic mass.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

Use an Elihu Thomson apparatus, also known as a ring launcher, to learn about electromagnetism concepts and the properties of various metals.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

The purpose of this science fair project is to build a basic radio.

This science fair project idea quantifies exactly how accurate the cricket thermometer is.

In this science experiment, test the pH of soil surrounding a gas station to determine if gas stations have a negative effect on the environment.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

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

Find a mathematical relationship between the intensity of a sound wave and distance from the sound source. Use a pedometer and a sound level meter.

Check out this cool science fair project idea to explore the relationship between pulse rate and blood pressure in healthy people.

The goal of this science fair project is to assess the acidity levels of common food and household products using pH test strips.

Research responsibilities of physicists, and common thinking patterns. Devise a questionnaire that measures career aptitude in physics.

Compare air temperature with the infrared temperature from a reflecting surface at different times of the day, in shade and in sunlight.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Figure out which fruit has the most vitamin C (ascorbic acid) in this fun science project!