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

Do Different Types of Oil Mix or “Stack”?

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

Popcorn Pumice: Exploring Different Rock Densities

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

Different Types of Rocks

Determine if gender affects the ability to identify different smells.

Do Women Have a Better Sense of Smell?

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

Can White Light Be Separated?

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

Eraser Test

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

Smile!

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

Homemade Barometer

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

Rate of Evaporation

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

Ivory Soap Experiment

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

Snow to Liquid Ratio

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

Gravitropism

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

Cricket Behavior

Come take off your shoes and explore with your feet. Your child will embark on a barefoot adventure as he plays with different textures.

Foot Sense: What Will Your Feet Feel?

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Rainbow in a Jar

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

Hydrogen Peroxide and Yeast

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

What is a Wedge?

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

Easter Egg Designs

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

Which Food Will Mold the Fastest?

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!

Animal Vision: Ocelli, Compound Eyes, and Camera Eyes

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

Form and Function

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.

Design a Great Glass Xylophone!

This science project uses Mohs&acirc; Hardness Test to show kids how to compare the hardness of different types of minerals.

The Mohs Test: How to Compare the Hardness of Minerals

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

Making Measurements: How Big is Your Hand?

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

Explore the Phases of the Moon

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

Bouncing Ball Physics: What is Elasticity?

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

Halloween STEM Building Challenge

This science fair project idea investigates how color affects temperature.

Color And Temperature

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

How Well Does Sound Travel Through a Gas? A Liquid? A Solid?

In this project children practice the scientific method while playing with puffy paint.

Practicing the Scientific Method with Puffy Paint

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