In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

Challenge your learner to design and build a city of their own in this creative engineering activity.

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

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

Discover how and which salt melts ice the quickest.

This science fair project idea identifies trees using a dichotomous key.

This project examines what types of objects burn and which burn faster and cleaner.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

This science fair project idea investigates how magnetism can defy the force of gravity.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

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

Take a dive into the candy jar with this yummy science experiment.

The goal of this project is to create an exciting topographical map out of dough.

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.

This science fair project idea investigates how the shape of an object affects drag.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!