Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

This project uses toy cars to determine how friction and gravity affect cars and braking.

This experiment evaluates how a diet that is rich in "mood-enhancing" foods affects the way people feel over several weeks.

In this project, waves of vibrations are experimented with using water in glasses.

Compare the amount of ozone in various locations with this science fair project that will have your kid create her own ozone strips!

There is debate about whether chalkboards or whiteboards are better. This experiment explores which leads to better retention of visually-displayed information.

This experiment will explore if magnetism has any effect on the regeneration abilities of flatworms.

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

Help your child learn about animal classification with this fun and delicious activity.

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

The objective of this science fair project is to explore whether superabsorbent polymer or hyrdrogel crystals have the best waterabsorbency.

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

Science fair project that examines condensation and the conditions needed in order for dew to form.

This science fair project idea produces varying pitches of sound.

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

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

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

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

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

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

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

Here's an experiment that will have your child experimenting with cake ingredients to learn about the chemical reactions that happen when a cake's in the oven.

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

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.

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.

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

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.

Determines the extent that high school GPA predicts future income. Survey volunteers, divide GPA into 5 categories, compare income levels with GPA

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