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Science Fair Project Idea
thumbnail Did you know that apple trees do not "breed true"? This means that if you plant seeds from an apple, say a Granny Smith, you will get apple trees, but they will make apples that are actually different than Granny Smiths. So how do farmers produce new Granny Smith trees? They use a method called vegetative propagation. For instance, they may cut a branch off of a tree that grows Granny Smith apples and attach the branch onto a different tree trunk. This method of making new trees is called… Read more
PlantBio_p040
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Time Required Very Long (1+ months)
Prerequisites None
Material Availability Readily available
Cost Average ($50 - $100)
Safety No issues
Science Fair Project Idea
thumbnail Hydrogen peroxide (often used as a disinfectant) has also been approved for use in pesticides. This science fair project investigates whether hydrogen peroxide has any effects on seed germination or on roots of plant cuttings. Read more
PlantBio_p036
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Time Required Long (2-4 weeks)
Prerequisites None
Material Availability Readily available
Cost Average ($50 - $100)
Safety Use caution when using the knife. Always use oven mitts when you remove items from an oven. Adult supervision is recommended.
Science Fair Project Idea
thumbnail Have you ever wondered why a plant that grows well in one environment may not survive in a different environment? For example, plants that grow well in a wet jungle would probably not do so well in a dry desert, lacking enough water. This is because plants have adapted to their specific environment. Some plants have even adapted to tolerate chemicals that would usually be toxic, such as various heavy metals. In this plant biology science project, you will investigate whether different… Read more
PlantBio_p047
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Time Required Very Long (1+ months)
Prerequisites None
Material Availability The Arabidopsis thaliana seeds for this science project need to be specially ordered in advance with the help of a parent or teacher. See the Materials and Equipment list for details.
Cost High ($100 - $150)
Safety Take all proper safety precautions when working with the heavy metals. Wear gloves. You may need additional protection, such as goggles.
Science Fair Project Idea
thumbnail You might not know it, but plants are able to sense their environment and actually respond appropriately. One of the key parameters that every plant must respond to is the direction of gravity: stems go up (opposite to the pull of gravity) and roots go down (in the same direction as the force of gravity). In this project, you will construct simple devices that hold several germinating seeds, which allow you to watch how growing rootlets respond as you rotate the devices, effectively altering… Read more
PlantBio_p034
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Time Required Long (2-4 weeks)
Prerequisites None
Material Availability Readily available
Cost Average ($40 - $80)
Safety No issues.
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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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 Have you ever eaten half an apple and saved the other half for later, only to find that, by time you were ready to eat it, the apple did not look as tasty anymore? It may have turned brown and shriveled, and, if left out long enough, it may have spoiled. Do you think you could have prevented the other half from spoiling, or made it spoil less, if you had stored it differently, such as in the refrigerator in a food wrapping? In this cooking and food science project, you will investigate which… Read more
FoodSci_p025
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Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Be careful when using the sharp knives. An adult volunteer may be needed for cutting the apples. Because of food safety concerns, do not taste or eat any of the apples used in this experiment.
Science Fair Project Idea
thumbnail If you had to choose between having your favorite dessert, going to a movie, or spending the night at a friend's house, which would you choose? This science project shows you how you can "ask" a sowbug (or pillbug) a similar question in order to learn about their preferences. Give it a try to find out what types of microenvironments these tiny crustaceans prefer. Read more
Zoo_p021
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Time Required Short (2-5 days)
Prerequisites None
Material Availability If you do not have sowbugs or pillbugs available locally, they will need to be specially ordered. See the Materials and Equipment section for details.
Cost Very Low (under $20)
Safety Adult supervision is recommended for using the utility knife.
Science Fair Project Idea
Do you like to climb trees? The branches of trees are what make them so fun to climb. Each branch starts out as a tiny shoot that grows out from a stem. How is the growth of shoots along a stem regulated? Read more
PlantBio_p018
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Time Required Long (2-4 weeks)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No hazards
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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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 Nobody likes to get "the shivers"—that unpleasant, quivery, shaky feeling. What do you do when you feel chilled? Put on extra clothing? Drink something warm, like hot chocolate with marshmallows? Lie down on warm cement? Turn up the heat? People are quick to change their behavior when they sense that their body temperature is dropping. In this zoology science fair project, you'll learn that animals, like horses, don't like being cold either, so, just like people, they change their… Read more
MamBio_p026
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Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Average ($50 - $100)
Safety You should never put your fingers, or anything else, inside a fan.
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