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

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

This activity is a fun challenge for students who have just started learning to program educational robots.

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

In this science fair project, young children observe, record, and create collections of shapes in their world and increase their powers of observation.

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

In this fun activity, your child will create their very own solar oven to bake s'mores!

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

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!

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Will the shape of an ice cube impact how fast the ice melts?

Construct batteries that make electricity from fruits with this fun science fair project.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

This biodiversity project examines the biodiversity in your own backyard.

Hold a magnet marathon! Explore the power of magnets with your kindergartener in this entertaining and simple science game.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

Find out whether matte or shiny nail polish lasts longer.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.