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

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

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

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

This science fair project idea determines the probability of a coin landing heads or tails.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

In this project, the fingerprints of family members are compared to determine if people from the same family have similar fingerprints.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

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

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.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Discover whether cold or hot water from the faucet will boil faster on the stove.

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 experiment challenges students to forecast the weather based on the surrounding areas' weather.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

How powerful is the reaction between baking soda and vinegar? Find out here!

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

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.

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!

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.