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Science Fair Project Idea
Some plants use a lot of water, and some are very drought-tolerant. Drought-tolerant grasses are good for water conservation because they require less water to grow and stay green. How much less water do they need? Which types of grass are drought-tolerant? You can buy different types or brands of grass seed at your nursery that claim to be drought-tolerant. Grow them in a container and then starve for water after they are established. Which brands die out first? You can conduct a similar… Read more
EnvSci_p022
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Time Required Very Long (1+ months)
Science Fair Project Idea
Animals come in all shapes and sizes, each a small part of the amazing diversity of life. These differences can also help us to classify animals into different groups. Which group do you belong to? How many different types of animals can you find around your home? Do this experiment to investigate the diversity of animal life around your home. Read more
Zoo_p015
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No hazards
Science Fair Project Idea
thumbnail To survive, we need oxygen in the air we breathe. Oxygen is also essential for most aquatic organisms, but there is much less oxygen available in water than in air. How much oxygen can dissolve in water? Does the temperature of the water matter? Learn how to measure dissolved oxygen and then see how oxygen concentration changes with water temperature. Read more
EnvSci_p014
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Time Required Average (6-10 days)
Prerequisites None
Material Availability A dissolved oxygen test kit is needed, see the Materials tab for more details.
Cost Average ($50 - $100)
Safety Adult supervision recommended.
Science Fair Project Idea
Did you know that soils can be alkaline, neutral, or acidic? Most plants grow best in soil near neutral pH, but some plants prefer slightly acidic and others slightly alkaline soil. What is the pH of the soil in your garden? What happens to the pH of water that comes in contact with soil? In this science project you will get to find out. Read more
EnvSci_p013
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Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Average ($50 - $100)
Safety No issues
Science Fair Project Idea
No one can deny the devastating consequences of an oil spill on the local wildlife. Oil affects all levels of the ecosystem, from plants to fish and birds. What happens to water plants if you add motor oil to their pot? What is the effect of motor oil on the health of a goldfish, or water insects? What happens to the barbs of a bird feather if they are dipped in oil? Can you test different types of environmentally-friendly detergents for cleaning the bird feathers? Can you test different… Read more
EnvSci_p032
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Time Required Average (6-10 days)
Science Fair Project Idea
Caffeine is a type of chemical called a stimulant. When you drink a caffeinated beverage, the caffeine enters into your blood stream dilating the capillaries and causing blood to flow more quickly. This gives your body a feeling of speeding up which can cause the jitters and wakefulness. How does caffeine affect the physiology of other animals? You can use over-the-counter caffeine supplements, like Vivarin, to test the effects of caffeine on animals. Try dissolving the caffeine in… Read more
Zoo_p030
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Time Required Average (6-10 days)
Prerequisites None
Material Availability Drosophila, daphnia, and other small invertebrate animals can be ordered from [# ProjectGuide Name="Advanced.ApprovedSuppliers" Value="HtmlAnchor" HtmlText="online vendors" #].
Cost Low ($20 - $50)
Safety No issues
Science Fair Project Idea
thumbnail Earth, the Sun, wind, and water are all sources of renewable and sustainable energy—and sources you probably already know about. But did you know that you can get energy from such things as banana peels, coffee grounds, and newspaper? In a process called composting, you can transform kitchen and other solid wastes into a product that is beneficial for your garden: homemade fertilizer. As the waste decomposes, it also creates heat. Can this naturally created heat be put to use? In this… Read more
Energy_p035
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Time Required Very Long (1+ months)
Prerequisites Making a compost pile can take anywhere from a couple of days to a few weeks, depending on the method and bin you use. In this energy and power science fair project, you will spend a few days creating a compost pile. You will have to account for the time as you are planning your science fair project. You will also need to be home for several hours at a time on many specific days throughout this project. Read through the Experimental Procedure for more details.
Material Availability You (and friends, if possible) will have to start collecting potato peelings or grass clippings a few weeks in advance to accumulate enough, so keep this in mind when budgeting time for your science fair project. See the Materials and Equipment list for details.
Cost Very High (over $150)
Safety Wear safety goggles and use caution when working with all tools. Be sure to wear disposable gloves when handling animal waste and to clean all of the work surfaces thoroughly with a bleach solution. Read the Science Buddies Microorganism Safety Guide to learn how to experiment safely.
Science Fair Project Idea
thumbnail Picture this situation: An elderly woman is rushed to the hospital complaining of severe abdominal pain, tinnitus, and lethargy. Suspecting a drug interaction, the emergency room doctor starts questioning her. The doctor learns that the woman takes no medicines except aspirin for her arthritis. Since she cannot swallow pills well she takes a powdered form of aspirin which she buys in bulk and keeps in a plastic container in her kitchen next to her baking goods. She had just finished a day of… Read more
Chem_p093
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Time Required Average (6-10 days)
Material Availability A kit containing specialty items is needed for this science project. See the Materials tab for more details.
Cost Average ($40 - $80)
Safety Wear safety goggles and gloves when working with chemicals.
Science Fair Project Idea
thumbnail Watching fish swim around a tank is not only a soothing activity, but (along with learning how to care for the aquarium inhabitants) it is also a good introduction to ichthyology, the study of fish. But having pet fish doesn't have to be a passive hobby; you can put those fish to work by helping to grow food for you and your family. How? By designing and building an aquaponics system. Aquaponics combines hydroponics with aquaculture. Hydroponics is the science of growing plants without… Read more
EnvEng_p032
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Time Required Very Long (1+ months)
Prerequisites Read the following Science Buddies resource on Measuring Plant Growth
Material Availability Readily available
Cost Very High (over $150)
Safety Use caution when using drills and power tools. Be sure to wear safety goggles. Adult supervision is required.
Science Fair Project Idea
Survey your area to find out which species of plants and animals live there. You might be surprised to find out that something you grew up thinking was very common, is actually quite unique! For example, if you live in the great plains, then you may think that prairie dogs are a nuisance or a pest. Actually, some species of prairie dogs are only found here, and have a very important role for short and tall grass prairie ecosystems. The prairie dogs are an important part of the food-chain, and… Read more
EnvSci_p031
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Time Required Long (2-4 weeks)
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