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Showing Results for compare with different denominators 2 : Page 3

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

Mystery Powders

This classic children&#39;s game-connecting two cups with a string-demonstrates sound&#39;s ability to travel through air vs through a solid.

The Speed of Sound on a String

In this fun experiment, learn about brand awareness and the influence of media on children by testing logo recognition in different age groups.

Logo Recognition: Effects of Media on Children

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

Soil Horizon

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?

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 is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

Bouncy Balls

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?

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

Biodiversity in a Drop of Water

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

Comparing Implements for Writing

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

A Denser Coke

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

Angle of Heat

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

Decomposition Rates of Biodegradable Materials

This science fair project idea explores  whether a sundial is as accurate as an atomic clock when telling time.

How Accurate is Using a Sundial Compared to an Atomic Clock?

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

Supercooled Water

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

Ew... Brown Guacamole!

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

Eureka! Volume and the Displacement of Water

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Does Ultraviolet (UV) Light Pass through Some Colors More than Others?

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

Does Skin Thickness Decrease Fruit Spoilage Rate? 

In this design challenge, your child will create a parachute for a small toy using typical household items.

Design Challenge: Making a Parachute

Find out whether matte or shiny nail polish lasts longer.

Which Nail Polish Lasts Longer: Matte or Shiny? 

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

Cleansing Power: How Does Dishwashing Liquid Work?

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

How Does Salinity and Temperature Affect the Density of Water?

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

Plant Phototropism Experiment

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

Speaking Cat

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

Plastic Wrap Science Fair Project: Polymer Permeability

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

Seedy Situation

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?

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

How to Make an Anemometer

This science fair project idea examines which type of insulation holds in the most heat.

Best Insulators

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