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.

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 fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

Learn with makes water molecules work with this fun and easy science activity!

Which do you prefer: real or artificial? Try this sweet little taste experiment to help your kids develop a better awareness of the food they consume.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

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

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

This science fair project idea determines the most effective method of preserving food.

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

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

This science fair project idea explores the different properties & interactions of sugar molecules.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

This science research project challenges students to think of more effective lobster farming methods.

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

Turn the common pastime of constructing paper airplanes into a lesson on the physics of aerodynamics and flight with this fun science activity.

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

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

This science fair project idea investigates whether plants can survive being frozen.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

This science fair project idea explores substances that cause a bubble to last longer.

In this project students experiment with making music using only glasses of water.