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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
Farmers face a variety of challenges in their efforts to grow crops. One of the chief challenges is the presence of unwanted plants (weeds) that compete with the crop plants for water, nutrients, and light. If the weeds are not suppressed, they can reduce or completely eliminate the amount of food derived from the crop at harvest. In this biotechnology and plant science fair project, you will simulate the competition between crop plants and weeds, and determine whether the use of an herbicide,… Read more
Genom_p020
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Time Required Very Long (1+ months)
Prerequisites None
Material Availability Specialty items: Genetically modified seeds can be purchased online. See the Materials and Equipment list for details.
Cost Average ($50 - $100)
Safety Wear disposable gloves when handling the weed killer and work in a well-ventilated area. Adult supervision is recommended.
Science Fair Project Idea
thumbnail We all know that plants need sunlight and water to grow big and tall. But did you know that inside seeds are baby plants, and that the fragile baby plant inside the seed needs to be protected? If you've ever had a sunburn, you also know that the sun gives off harmful radiation and heat. How much radiation and heat can a seed handle? Find out using some radish seeds, an oven, and your microwave! Read more
PlantBio_p008
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Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Requires adult supervision
Science Fair Project Idea
Germination is the process by which a seed emerges from the seed coat. Many different variables can effect the process of germination. Try to sprout seeds from different species of plant to see if different species vary in germination time. Are weeds faster germinators than vegetables? Try measuring seeds and then germinating them to see if big seeds sprout at a different rate than small seeds. Try sprouting seeds in different environments to test the effect of different environmental… Read more
PlantBio_p028
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Time Required Very Long (1+ months)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Use caution when using a blade to cut open seeds. Adult supervision is recommended.
Science Fair Project Idea
DNA is the "instruction manual" for the successful growth of a living thing, from a single cell to a mature adult. When the DNA of an organism is somehow damaged, it can have an impact on the organism's development over time. In this plant science fair project, you will track how irradiation (exposure to radiation) of radish seeds affects germination (sprouting of a seedling from a seed). Read more
PlantBio_p039
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Time Required Long (2-4 weeks)
Prerequisites None
Material Availability You will need a specialty item, Irradiated "Rapid Radish" seeds, for this science fair project. See the Materials and Equipment list for more details.
Cost Average ($50 - $100)
Safety No issues
Science Fair Project Idea
thumbnail Every day farmers around the world apply commercial fertilizer to their fruits and vegetables to improve plant health and yield. But applying commercial fertilizer is expensive and not economically possible for some farmers in developing countries. What if they could find a way to fertilize plants cheaply? It turns out that human urine is rich in the nutrients that plants need to grow. Could urine serve as a fertilizer substitute? Find out for yourself in this plant growth science project. Read more
PlantBio_p046
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Time Required Very Long (1+ months)
Prerequisites None
Material Availability To do this project, you will need dirt without any added fertilizer. See the Materials and Equipment list for details.
Cost Low ($20 - $50)
Safety Use caution when handling human urine. Wear gloves when working with human urine. Adult supervision is recommended.
Science Fair Project Idea
Plants have evolved many clever mechanisms to ensure that their seeds will wait for appropriate conditions before sprouting. Some may only germinate after a fire, others only after going through a cold spell. This project explores one important variable among many that determine the ideal conditions for seed germination. Read more
PlantBio_p005
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Time Required Very Long (1+ months)
Material Availability Readily available
Cost Low ($20 - $50)
Science Fair Project Idea
thumbnail Farmers are constantly battling various types of weeds that compete with the crops they are trying to grow. One of the tools they use to combat unwanted plants is a chemical called glyphosate. Glyphosate is the active ingredient in Roundup, a widely used weed killer. In this plant biology science fair project, you will explore the factors that affect the activity of glyphosate. Read more
PlantBio_p038
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Time Required Very Long (1+ months)
Prerequisites None
Material Availability Readily available
Cost Average ($50 - $100)
Safety Wear disposable gloves when handling the weed killer and work in a well-ventilated area. Adult supervision is recommended.
Science Fair Project Idea
thumbnail Spicy fried tofu. It's a delicious and savory main dish at many Asian restaurants. Stab a golden-brown piece, bite into it, and the juice inside rushes out, filling your mouth with rich flavors. Continue eating and you find the texture is very chewy and meat-like. Did you ever wonder how those white blocks of tofu you see in grocery stores are transformed into the chewy little sponges packed with flavorful juices you see in Asian restaurants? Try this cooking and food science fair project to… Read more
FoodSci_p045
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Time Required Average (6-10 days)
Prerequisites None
Material Availability Two small graduated cylinders are required. A specialty item to help view the structure of the tofu is optional. Read the Materials and Equipment list for more information.
Cost Low ($20 - $50)
Safety Adult supervision is recommended when using the knife.
Science Fair Project Idea
thumbnail Have you ever wondered if a piece of jewelry is real gold or if it's just some ordinary metal alloy? It turns out that some metals have a unique property; even in small amounts, they can be toxic to some organisms, including algae, molds, fungi, and bacteria, although it often takes many hours to see an effect. Can this phenomena, called the oligodynamic effect be used to tell whether or not the gold or silver in a piece of jewelry is real? Do bacteria react differently to pure, plated, and… Read more
MicroBio_p026
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Time Required Long (2-4 weeks)
Prerequisites None
Material Availability This science fair project requires access to some laboratory equipment, such as a 37°C incubator, a Bunsen burner, as well as some specialty reagents, which can be ordered online. It also requires several pieces of jewelry, including at least one 14-karat gold piece. See the Materials and Equipment list for more details.
Cost Average ($50 - $100)
Safety This science fair 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. Projects using bacteria may require pre-approval from your science fair's [# Link Name="MicroBio_p026.1" Value="HtmlAnchor" #]. 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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