This science fair project idea produces sounds by creating vibrations using different objects.

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

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?

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

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

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

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

Take advantage of the fact that ink and water don't mix and introduce your kid to suminagashi, a Japanese form of art.

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.

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

This science project allows students to study the psychology of happiness.

Using simple materials found around your home, you can reinforce the static electricity concept by helping your child build a simple device with zapping power!

Conduct a simple science experiment to see if flowers from your garden pass the acid-base indicator test with this exciting chemistry activity.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.

Based on the concept of water's "freezing point," this activity entails the lowering of water's freezing point to chill ice cream!

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Every time a sound is produced it emits a sound wave. This experiment demonstrates how sound travels, using nothing more than a spoon and a string!

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

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

Science isn't ho hum anymore when it involves building catapults to teach your fifth grader about projectile motion.

Here is a quick experiment you can conduct at the playground to introduce or reinforce the concept of Newton's First Law, The Law of Inertia.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

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

Science fair project which determines whether a person's taste in music is dictated by the key that the song is written in.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.