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

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

Science fair project that determines whether mass and weight are the same or different.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

In this science fair project you will make a model of a cell membrane using very simple material.

This project examines whether people's taste perception is influenced by what they see.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

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

Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.

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

This biodiversity project examines the biodiversity in your own backyard.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

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

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

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

Discover how and which salt melts ice the quickest.

Show your preschooler how to make a print of a butterfly using her hand as a tool--a great way to stimulate her sense of touch.

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

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

Introduce your child to preliminary science concepts by challenging them to do this fun and simple cloud observation activity.