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Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

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

Do different types of oil mix or stack? Find out in this science fair project idea!

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

This project compares the strength of one, two, and three-ply toilet paper.

This science fair project idea compares biodiversity between drops of water.

This science fair project idea investigates the difference in reaction times between boys and girls.

How powerful is the reaction between baking soda and vinegar? Find out here!

This science fair project teaches students the differences between fruits and vegetables.

Determine if gender affects the ability to identify different smells.

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

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

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 homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

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

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

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

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

Learn about different fern fronds with your third grader as you create lacy, natural decorations on your Easter eggs this year.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.