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Plant Biology Project Ideas

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Showing 1 - 4 of 4 Project Ideas
How Do Flowers Develop? *
How Do Flowers Develop?
Difficulty
Time Required Average (6-10 days)
Prerequisites None
Material Availability Gladiola plants are available for purchase in many plant nurseries at select times of the year. Check with your local nursery.
Cost Low ($20 - $50)
Safety Use caution when using a blade for flower dissection. Adult supervision is recommended.

Flower development is an important part of plant growth. When a plant has reached maturity, it needs to develop flowers in order to reproduce. The male and female parts of the flower have specialized structures for reproduction that develop as the plant matures. How do flowers develop over time? Which structures develop first? You can answer these questions by dissecting the flowers of a gladiola. Gladiola flowers grow and develop along the… Read more
How Vines Find Their Spines: Thigmotropism in Morning Glory Tendrils
How Vines Find Their Spines: Thigmotropism in Morning Glory Tendrils
Difficulty
Time Required Very Long (1+ months)
Prerequisites This science fair project requires healthy growing plants with tendrils. It may take 3 to 4 weeks to grow the plants from seeds.
Material Availability Specialty items: A growing plant with tendrils, such as a morning glory or sweet pea.
Cost Low ($20 - $50)
Safety Use caution when using the razor blade or craft knife. Adult supervision is recommended.

We tend to think of plants as immobile, but the tendrils of a vine, such as the morning glory, actually move in response to touch. Tendrils wrap around structures, which give the plant something to grow on. In this science fair project, you will investigate how plant tendrils respond to touch stimuli. Read more
Rad Radishes: Effects of Irradiation on Seed Germination
Rad Radishes: Effects of Irradiation on Seed Germination
Difficulty
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

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
Weeds Be Gone! Experiment with Factors that Affect Roundup® Weed Killer
Weeds Be Gone! Experiment with Factors that Affect Roundup® Weed Killer
Difficulty
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.

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
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