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Science Fair Project Idea
thumbnail We have all heard the old saying, "One bad apple spoils the whole bunch." Due to the production of the plant hormone ethylene during the ripening process, this saying proves true! This experiment will investigate the role of ethylene in the process of fruit ripening. Read more
PlantBio_p009
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Require sponsor
Cost Average ($50 - $100)
Safety Adult supervision required. Protective gloves, eyewear and lab coat required when working with iodine solutions.
Science Fair Project Idea
thumbnail You have most likely witnessed the change that occurs as a banana ripens It changes from green and relatively hard to yellow and soft. The flavor also changes, from bitter to sweet. What happens during ripening? One big change is the increase in sugar content. In this food science fair project, you will measure how the sugar content of a banana changes as it ripens. Read more
FoodSci_p063
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Time Required Average (6-10 days)
Prerequisites You will need both ripe and unripe bananas for this science fair project, so be sure you can find them in your grocery store, particularly if it's the off-season.
Material Availability You will need to purchase a refractometer online. See the Materials and Equipment list for details.
Cost High ($100 - $150)
Safety No issues
Science Fair Project Idea
Do you like your strawberry jelly with or without the seeds? Are you glad to have a seed-free watermelon, or do you enjoy spitting the seeds into the garden? You might not like to find seeds in your fruit, but fruit is nature's way of dispersing seeds to make new plants. How many seeds can be dispersed for each type of fruit? As they say, in one end and out the other! Read more
PlantBio_p019
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Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Adult supervision required when cutting fruit
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
thumbnail Why do different types of fruits come packaged in different ways? In this project, you will experiment with different ways of packaging fruit to see if it has an effect on the freshness of the fruit. Will a different kind of packaging allow the fruit to stay fresh longer? Read more
MatlSci_p022
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Time Required Long (2-4 weeks)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
Animals respond to chemical cues in different ways. If an animal turns away from a chemical cue, then that chemical is a repellent. If an animal turns toward a chemical cue, then that chemical is an attractant. Attractants and repellents can be airborne chemicals, chemicals found in food, or chemicals that diffuse through water. One example of an airborne chemical is a pheromone, a chemical signal that is released by one individual to attract another. Moths release pheromones to attract… Read more
Zoo_p042
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
Many organisms have ways of orienting toward or away from an environmental stimulus. Some of these behaviors are instinctive, meaning they are behaviors with built in instructions that do not need to be learned. The instinctive response to a stimulus is called a taxis, and there are several types of cues: electricity (galvanotaxis), gravity (geotaxis), light (phototaxis), heat (thermotaxis), touch (thigmotaxis) or a chemical (chemotaxis). You can design experiments to test whether organisms… Read more
Zoo_p043
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Time Required Average (6-10 days)
Prerequisites None
Material Availability This science project can be done with insects you catch in your own backyard or order from [# ProjectGuide Name="Advanced.ApprovedSuppliers" Value="HtmlAnchor" HtmlText="online vendors" #] such as [# Link Name="Advanced.ApprovedSuppliers.2" Value="HtmlAnchor" HtmlText="Carolina Biological Supply Company" #]
Cost Very Low (under $20)
Safety If you choose to try this science project with small animals (rather than with insects), use caution when handling the animals and always have an adult present. The use of small animals may require [# ProjectGuide Name="Advanced.ScientificReviewCommitteeSRC" Value="HtmlAnchor" HtmlText="SRC approval" #].
Science Fair Project Idea
Up, up, and away! If you have ever made a wish and blown the fluff of a dandelion, you have witnessed how some plants are adapted to spreading their seeds using the wind. The tiny, furry parachute allows the seeds to be picked up by the wind and to be carried far away from their parent plant. In this experiment, you will make models of seeds and fruit to investigate dispersal by wind and to evaluate the relationship between the structure of the seed and its ability to be dispersed by the… Read more
PlantBio_p013
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Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
Soil may look like a bunch of dirt, but good quality soil is actually a complex mixture of dirt, nutrients, microorganisms, insects and worms. What type of benefit do these microorganisms offer a growing plant? You can test this by baking soil in the oven to sterilize and kill the microorganisms. Do plants grown in sterile soil do better than plants in unsterilized soil? What about adding worms to one plant, but not to the other. Will the plant with worms grow better? Some insects are bad… Read more
PlantBio_p031
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Time Required Very Long (1+ months)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Adult supervision is required when using the oven. Use caution when handling and disposing of mold. Treat molds according to the same safety rules as outlined for bacteria in the [# ProjectGuide Name="Advanced.MicroorganismsSafetyGuide" Value="HtmlAnchor" HtmlShortTitle="true" #].
Science Fair Project Idea
Plant stems grow through a process of elongation due to cell divisions within the stem. Does the entire length of the stem elongate evenly? Or do certain regions along the plant stem grow more or less than others? Regions that are involved in active growth are called vegetative. You can conduct an experiment to show which regions of a bean seedling are involved in vegetative growth. Use a marker to mark one inch sections along the main stem of a young bean seedling. Number the regions 1-6… Read more
PlantBio_p023
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- Less Details
Time Required Long (2-4 weeks)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
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