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This science fair project explores how osmotic pressure forces water through the root up into the plant.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

Examine the effect of pressure on carbonation in soda.

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

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

This science fair project idea provides evidence that air is everywhere and takes up space.

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

Find out whether cast iron or regular teflon pans heat up faster and also retain their heat longer.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

This tricky building block challenge asks your learner to think creatively. They will work on their divergent thinking skills as they try to fill up an index card perfectly with building bricks.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

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.

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?

Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

Explore if planting seeds in a certain direction will affect how fast it germinates.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

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

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

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

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.