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Others Like “Particles in the Mist: See Radioactive Particles Decay with Your Own Cloud Chamber!”

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Science Fair Project Idea
You know that water can exist in three separate phases: solid (ice), liquid (water), and vapor (steam). To change from one phase to another, you simply add (or remove) heat. When water boils, what happens to molecules (for example sugar or salt) that are dissolved in the water? Do they boil off too, or do they stay behind? Read more
Chem_p024
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Specialty items
Cost Very Low (under $20)
Safety Adult supervision required.
Science Fair Project Idea
Astronomers can figure out what distant stars are made of (in other words, their atomic composition) by measuring what type of light is emitted by the star. In this science project, you can do something similar by observing the color of flames when various chemicals are burned. Read more
Phys_p058
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Time Required Average (6-10 days)
Prerequisites None
Material Availability Requires specific chemicals; see Materials for more details. For your convenience, a kit is available for purchase at the [# Link Name="Phys_p058.5" Value="HtmlAnchor" #].
Cost Average ($50 - $100)
Safety Adult supervision required. This science fair project involves creating small controlled fires. Make sure you follow all the safety guidelines in the Experimental Procedure.
Science Fair Project Idea
Germs are everywhere! We try and clean our home with disinfectants, but do we really get rid of all the germs? Find out with this "hands-on" experiment. Read more
MicroBio_p012
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Specialty items
Cost Average ($40 - $80)
Safety Must follow general safety precautions for handling microorganisms.
Science Fair Project Idea
Here is a project that uses direct solar power, gathering the sun's rays for heating/sterilizing water or cooking. It is a low-cost technology that seems to have everything going for it. Does it work? Can you find ways to improve it? Find out with this project. Read more
Energy_p018
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Time Required Average (6-10 days)
Prerequisites Sunlight, and fairly warm outside temperatures (>10°C, or 50°F).
Material Availability Readily Available
Cost Low ($20 - $50)
Safety Adult supervision recommended. The oven is designed to cook food or boil water, so use proper caution to avoid burning yourself. Also be careful with the utility knife when cutting cardboard.
Science Fair Project Idea
What do sand and cereal have in common? They are both granular materials, which means they are made up of solid particles, but they can actually flow like liquid. When two granular materials with very different-sized particles are mixed, you can actually separate each type by putting them in a rotating device called a tumbler. In this science project, you will examine how common household granular materials behave when mixed together in a moving container Read more
Phys_p092
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Adult supervision is recommended when using a knife to cut a hole in the cardboard box
Science Fair Project Idea
The poet Carl Sandburg wrote, "The fog comes on little cat feet..." In this weather science fair project, you'll discover why this beautiful, quiet creeper appears on some days, and not on others. If you are fascinated by fog and weather conditions, this science fair project is for you! Read more
Weather_p028
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Time Required Very Long (1+ months)
Prerequisites Each morning around sunrise, you will need to make visual observations of a field, park, or other area with considerable plant matter within 10 minutes of your home.
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
The enormous task of cleaning up oil spills in oceans and seas has burdened industry, government, and environmentalists for decades. The cleanup is almost always difficult. It involves great amounts of time, resources, and money to remove the oil from the water, and the cleanup is often only partially successful. Today, however, scientists are coming to the rescue, developing a new technique that combines nanotechnology and magnetism. In this science project, you will test the proposed… Read more
EnvEng_p036
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Time Required Average (6-10 days)
Prerequisites None
Material Availability A kit containing the specialty items needed for this science project is available from the [# Link Name="EnvEng_p036.9" Value="HtmlAnchor" #].
Cost Average ($50 - $100)
Safety Neodymium magnets are very strong. Some have the capacity to interfere or reset pacemakers. Never put a neodymium magnet in your mouth. Always keep them away from computers, credit cards, and other magnetized objects.

Ferrofluids create stains on skin and other materials, so take appropriate measures to keep the fluid contained to the working area.

Science Fair Project Idea
Physicists sometimes study matter under extreme conditions. For example, think of the emptiness of interstellar space vs. the unimaginable crush of pressure at the center of a neutron star, or an object dipped in liquid nitrogen vs. the tiles on the space shuttle during re-entry. Here's an experiment on permanent magnets in "extreme kitchen" conditions that you can try at home. Read more
Phys_p025
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Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Adult supervision highly recommended. Use proper caution when transferring or holding magnets at extreme temperatures. See the Procedure for details.
Science Fair Project Idea
Did you know that when you dip your finger in water and pull it out, the water is actually pulling back on you? Here's a way you can measure how much. Read more
Phys_p012
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Time Required Very Short (≤ 1 day)
Prerequisites Basic physics: understanding of the concept of a force
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
Have you ever wondered where acne comes from and how you can treat it? One major cause of acne is the colonization and infection of clogged pores with bacteria. In this science project, you'll test different acne medications and treatments to determine their effectiveness at killing bacteria. Read more
MicroBio_p019
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Time Required Long (2-4 weeks)
Prerequisites None
Material Availability This science project requires access to some laboratory equipment, such as a 37°C incubator, as well as some specialty reagents, which can be ordered online. See the Materials and Equipment list for more details.
Cost High ($100 - $150)
Safety This science project involves the use of the bacterium E. coli. Standard microbiology and bacterial safety guidelines should be followed, see the [# ProjectGuide Name="Advanced.MicroorganismsSafetyGuide" Value="HtmlAnchor" HtmlShortTitle="true" #] for more details. To maintain a sterile environment, you will be working near a lighted Bunsen burner. Keep all flammables, including hair and clothing, away from the flame.
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