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Science Fair Project Idea
thumbnail Renewable energy is the energy that is extracted from natural sources, such the Sun (solar), earth (geothermal), wind, and water (hydropower). These sources are renewable because they can be replenished by the same natural sources within a short period of time. Hydropower energy is extracted from moving water, like ocean wave energy and tidal energy. In this energy science fair project, you will make a model of a tidal barrage (also known as a dam) and investigate how emptying the tidal barrage… Read more
Energy_p028
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Time Required Short (2-5 days)
Prerequisites You will need access to a drill and hole saws.
Material Availability Readily available
Cost Average ($50 - $100)
Safety Minor injury is possible. Use caution when using a drill. Always wear safety goggles when working with power tools. Adult supervision is required.
Science Fair Project Idea
thumbnail Foundations for many types of structures rest on soil. This project shows how you can investigate the bearing capacity of different types of soil. Read more
CE_p009
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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
thumbnail It's hard to believe that the same water that you use every day to quench your thirst, cook with, bathe in, swim in, and wash your clothes and dishes, is capable of another trick—it can make electricity! Electricity can be generated through the flow or through the fall of water. A big, fast-flowing river, for instance, contains a lot of moving energy that provides enough pressure to turn the blades of a turbine and run an electric generator. This same pressure can also be created though… Read more
Energy_p029
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Time Required Very Short (≤ 1 day)
Prerequisites Access to a bathtub or other area suitable for testing with water.
Material Availability Readily available
Cost Very Low (under $20)
Safety Use caution when poking holes with the nail.
Science Fair Project Idea
thumbnail Water is an interesting thing. We drink it, swim in it, and wash ourselves with it. We can get energy from water by damming it and sending it through a turbine. But did you know that we can use the natural electrical charges present in water and a Kelvin electrostatic generator to create sparks? You can even use a Kelvin electrostatic generator to temporarily light a bulb! Now that is one bright idea! Read more
Elec_p069
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Time Required Average (6-10 days)
Prerequisites None
Material Availability You will need to visit your local hardware store to purchase plumbing items to build the Kelvin electrostatic generator. You will also need a hand saw, a drill, a heat gun, a digital scale, a fan, and a dehumidifier. See the Materials and Equipment list for details. Cost of the project may be lower depending on what tools you already have available.
Cost High ($100 - $150)
Safety Parts of the Kelvin electrostatic generator require use of a hand saw and a drill. Wear safety goggles when using power tools. Adult supervision is required.
Science Fair Project Idea
thumbnail Have you ever wondered what a wildlife biologist does? Ronnie and Denise from DragonflyTV found out firsthand when they worked with a local wildlife biologist to take a survey of the fish populations in their local lake. They wanted to determine what the biodiversity (number of different species in a habitat) was like so that they could find out how healthy the lake habitat was. In this science fair project you can take on the role of a wildlife biologist by examining the biodiversity of… Read more
EnvSci_p045
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Adult supervision needed to make bug vacuum.
Science Fair Project Idea
thumbnail How do you feel when you ride your bike into a strong wind? Do your legs feel like lead? How about when the wind is at your back? Does that make you feel ready for the Tour de France? In this science fair project, you will investigate how wind-powered devices, like pinwheels, also react in different ways to the direction of the wind. Read more
Energy_p025
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Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
thumbnail "Gross! What is that in the toilet?" But maybe it's not just gross. Did you know there are bacteria that digest organic waste and create electrons? What if there was a way to collect those electrons to power a circuit? In this science fair project, you will make a microbial fuel cell to collect the electrons that the bacteria—anaerobic bacteria—create...only, you'll be using mud, which is much safer to handle than wastewater. If you would like to learn how to reuse and recycle an… Read more
Energy_p026
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Time Required Very Long (1+ months)
Prerequisites You will need to be familiar with the procedures for handling biologically hazardous material. Read the [# ProjectGuide Name="Advanced.MicroorganismsSafetyGuide" Value="HtmlAnchor" HtmlShortTitle="true" #] from the Science Buddies Project Guide to learn more about handling biologically hazardous materials. You also need to have access to a lower-order stream of water or a creek. See the Introduction for an explanation of this type of stream. Try to avoid streams in which the bed is rocky. The benthic mud sample should be from an area that has a thick, rich mud bed.
Material Availability Specialty items required
Cost High ($100 - $150)
Safety Adult supervision is recommended. Be careful when using a hot stove and a drill. Remember to always wear safety goggles when drilling. Exercise caution when working near a stream or creek. Water currents can be stronger than they look.
Science Fair Project Idea
thumbnail What can you do with magnets and ball bearings that makes a lot of noise? Why, build a magnetic rifle, called a Gauss rifle, of course! Now, this rifle is not a weapon, but a way for you to learn a lot more about physics concepts, like momentum. In this physics science project, you will investigate how far a ball bearing launched by a Gauss rifle will fly, depending on how many magnetic acceleration stages are in the rifle and the ball bearing's initial velocity. This science project makes for… Read more
Phys_p081
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Time Required Average (6-10 days)
Prerequisites None
Material Availability Specialty items including neodymium magnets and steel ball bearings are needed for this project. See the Materials and Equipment list for details.
Cost Low ($20 - $50)
Safety A Gauss rifle can produce high velocity projectiles. Do not aim the gun at anyone or anything; do not put your hand in front of the projectile. Operate the Gauss rifle safely. Be sure to read the important safety notes at the beginning of the Experimental Procedure before you begin. Scissors or other metal objects may be attracted to the magnets; use caution when using metal objects near the magnets.
Science Fair Project Idea
thumbnail People often call cardiovascular disease a "silent killer." This disease sneaks up and causes damage, but patients don't realize it—until serious symptoms start. That is why physicians recommend keeping your cardiovascular system healthy. A healthy cardiovascular system gives us the energy and the stamina to do all of the things that we want to accomplish, such as do our best in school and perform well in sports. But what makes a cardiovascular system unhealthy, and what are the… Read more
HumBio_p032
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Time Required Short (2-5 days)
Prerequisites None
Material Availability You will need access to a hand drill with bits of different sizes. See the Materials and Equipment list for details.
Cost Low ($20 - $50)
Safety Use caution when using a drill. Be sure to wear safety goggles. Adult supervision is recommended.
Science Fair Project Idea
thumbnail What do sand and cereal have in common? They are both granular materials, which means they are made up of solid particles, but they can actually flow like liquid. When two granular materials with very different-sized particles are mixed, you can actually separate each type by putting them in a rotating device called a tumbler. In this science project, you will examine how common household granular materials behave when mixed together in a moving container Read more
Phys_p092
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Adult supervision is recommended when using a knife to cut a hole in the cardboard box
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