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Science Fair Project Idea
thumbnail One way to test for the presence of toxic compounds in a water sample is a bioassay. In a bioassay, a living organism serves as a detector for toxins—the same way canaries were used in coal mines to detect invisible toxic gases. In this project, water fleas (Daphnia magna), a freshwater crustacean, are used in a bioassay to monitor water quality. Many variations of this experiment are possible. Read more
EnvSci_p043
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- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability Specialty items
Cost Average ($40 - $80)
Safety Adult supervision required when collecting sediment samples from parking lot.
Science Fair Project Idea
Plants need nitrogen to build proteins and nucleic acids to grow healthy stems and leaves. Though the Earth's atmosphere is made up of 79% nitrogen, the form of nitrogen found in the atmosphere cannot be used by plants. In this experiment, you will compare plants grown without nitrogen fertilizer to plants grown with nitrogen fertilizer. Read more
PlantBio_p012
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- Less Details
Time Required Long (2-4 weeks)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Adult supervision recommended during preparation of nitrogen fertilizer solution
Science Fair Project Idea
thumbnail Everybody knows that your body needs oxygen to keep going, and that you breathe out carbon dioxide as waste. What happens when you exercise? You have probably noticed that you breathe faster, and your heart beats faster. What triggers your body to respond in this way? How does it "rev up" to keep your muscles going? Here is a project that gives you a peek into the fascinating science of exercise physiology. Read more
Zoo_p013
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Time Required Average (6-10 days)
Prerequisites Interest in exercise physiology; the deeper your knowledge of acid-base reactions, the further you can take this project
Material Availability Readily available
Cost Low ($20 - $50)
Safety Adult assistance recommended for construction and setup of respirometer and data collection
Science Fair Project Idea
thumbnail Have you ever planted a garden? It is a real pleasure to see a garden where all of the plants lie in neat rows and are healthy and thriving. Plants need sunlight and nutritious soil to grow and be healthy, right? Not always! Hydroponics is the science of growing plants in nutrient-rich water. Does it work? Try this project and see for yourself! Read more
PlantBio_p045
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- Less Details
Time Required Very Long (1+ months)
Prerequisites None
Material Availability A hydroponics terrarium is required and, for your convenience, can be purchased at the [# Link Name="PlantBio_p045.1" Value="HtmlAnchor" #].
Cost Average ($50 - $100)
Safety Use gloves and safety goggles when handling chemicals. Adult supervision is required.
Science Fair Project Idea
thumbnail Chemicals from Earth's atmosphere are making their way down to the planet! Not in spaceships, but in rain. The acid rain can infiltrate ground water, lakes, and streams. How does acid rain affect aquatic ecosystems? Read more
EnvSci_p016
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- Less Details
Time Required Average (6-10 days)
Prerequisites None.
Material Availability Items will need to be special ordered. See the Materials and Equipment section for more details.
Cost Average ($50 - $100)
Safety No hazards.
Science Fair Project Idea
thumbnail Want to do a project with a toy your parents, or even grandparents, might have played with? Slinkies are fun toys that also make great physics and engineering projects. In this science project you will investigate how changing the angle of an inclined plane affects how the Slinky walks down it. What angle will enable the Slinky to go for the best walk? Read more
ApMech_p019
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- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
thumbnail Isn't it nice to take a nice, hot shower or bath after a long day of playing outside? But have you really thought about how the hot water in your shower or bath gets hot? Sure, the water heater in your house gets it hot, but what makes the water heater work? Water heaters are powered by natural gas or electricity. But are there any other ways to heat water? What about using the Sun? In this science fair project, you'll give it a try by capturing energy from the Sun to heat water. Read more
Energy_p033
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Average ($40 - $80)
Safety Adult supervision is recommended when using scissors.
Science Fair Project Idea
thumbnail Pennies are bright and shiny when they're new, but become quite dull with time. What causes such a drastic change? Oxygen in the air combines with the copper in the penny to form copper oxide, which makes the penny look dull and dingy. You can make the pennies look like new again by soaking them in water that is corrosive enough to strip off the copper oxide layer. It turns out, however, that the same process that makes the pennies shiny has bad consequences when it comes to copper pipes: it… Read more
Chem_p090
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability A copper test kit and other specialty supplies needed for this project are available through the [# Link Name="Chem_p090.7" Value="HtmlAnchor" #].
Cost Average ($40 - $80)
Safety Adult supervision is recommended.
Science Fair Project Idea
thumbnail If you have ever prepared a cup of coffee or tea with sugar, you have probably seen that the grains of sugar quickly dissolve and completely disappear in hot water. But sugar is not the only type of solid that can readily dissolve in a liquid. In fact, there are some types of rocks that can be dissolved by common liquids. It might be hard to imagine large, hard rocks being eaten away by some ordinary fluids, right? But it actually happens all the time! In this geology science project, you will… Read more
Geo_p047
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- Less Details
Time Required Long (2-4 weeks)
Prerequisites None
Material Availability Small limestone rocks are needed to do this science project. See the Materials and Equipment list for details. Note: The listed time required to do this science project includes shipping time.
Cost Average ($50 - $100)
Safety No issues
Science Fair Project Idea
thumbnail Would you like some sky vegetables for dinner? How about some fresh-cut roof flowers to put in vases in your house? Around the world, rooftops are being transformed into living green expanses. Besides beauty, rooftop gardens have a number of advantages, including growing food and taking carbon dioxide out of the air while releasing breathable oxygen. But can rooftop gardens also keep your house cooler and lower your energy bill? Try this science fair project to find out. Read more
EnvEng_p026
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Use caution when using exacto knife.
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