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Science Fair Project Idea
Ultraviolet light can damage DNA molecules. If a cell's DNA repair mechanisms can't keep up with the damage, mutations are the result. As harmful mutations accumulate, the cell eventually dies. How much ultraviolet light is too much for a bacterial cell? Read more
MicroBio_p017
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Time Required Average (6-10 days)
Prerequisites To do this project, you will need access to a laboratory with facilities for culturing bacteria. You should be familiar with sterile technique and proper handling of bacterial cultures.
Material Availability Specialty items
Cost Average ($50 - $100)
Safety Adult supervision required. Read and follow the safety note below on ultraviolet light. Follow standard precautions for handling bacterial cultures.
Science Fair Project Idea
It's true that the light from the Sun provides the heat and light we need to survive here on Earth, but it also poses a threat. Ultraviolet (UV) rays in sunlight cause damage that can lead to early skin aging and even skin cancer. In this science fair project, find out when you need the most protection from UV rays by using a personal UV monitor to measure how the level of ultraviolet light changes during different parts of the day. Read more
HumBio_p028
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Time Required Short (2-5 days)
Prerequisites None
Material Availability You will need to order a personal UV monitor online. Please see the Materials and Equipment list for details.
Cost Low ($20 - $50)
Safety Do not look at the Sun when you are measuring the UV level. Wear sunscreen when you are in the sunlight.
Science Fair Project Idea
Most of the ultraviolet (UV) light produced by the Sun is blocked by the atmosphere, but some UV light does still reach Earth. It can be detected using electronic devices, but can also be detected with something called UV beads. UV beads contain a pigment that changes color when they are exposed to ultraviolet radiation from the Sun. In this chemistry science fair project, you will use UV beads to study how temperature affects the rate at which they lose their color. Read more
Chem_p088
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Time Required Short (2-5 days)
Prerequisites None
Material Availability You will need to order UV beads online. See the Materials and Equipment list for details.
Cost Low ($20 - $50)
Safety No issues
Science Fair Project Idea
Have you ever thought about how fortunate you are to have safe and clean water coming out of your faucet? Many people in undeveloped nations don't have this luxury. But does that mean they can't have clean water at all? Is there an inexpensive way they could use to make their own clean water? In this microbiology science fair project, you will investigate whether or not sunlight can disinfect contaminated water. Read more
MicroBio_p025
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Time Required Long (2-4 weeks)
Prerequisites You should have access to a local stream or creek.
Material Availability Specialty items are required. You will need to purchase tryptic soy agar plates, droppers, and glass rods for streaking. See the Materials and Equipment section, below, for more details.
Cost Average ($50 - $100)
Safety This science fair project deals with potentially dangerous pathogens. Wear gloves when conducting the experiment. Read and follow the instructions in the . Do not drink any of the water that results from the SODIS process. See the Experimental Procedure for more information. You should always exercise caution when obtaining a water sample from a creek or a stream.
Science Fair Project Idea
In the fairy tale of the three little pigs, the wolf huffed and puffed and blew down the first pig's straw house. But in reality, straw, tied into bales, is a viable building material that, when used properly, makes sturdy and energy-efficient buildings. Straw is a renewable resource that is available all over the world since it is the byproduct of growing grain. In this science fair project, you will test a straw bale covered with stucco to see if it's water resistant, and evaluate if it's… Read more
MatlSci_p039
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Time Required Long (2-4 weeks)
Prerequisites You need access to a local stream or creek.
Material Availability Readily available
Cost High ($100 - $150)
Safety Minor injury is possible, so wear safety goggles. Adult supervision is required. Make sure to ask for help when lifting and moving straw bales.
Science Fair Project Idea
Caves have been used for much more than just exploring throughout Earth's history. Caves have been used for shelter, for religious purposes, and for burial sites. They were even used for food storage, before refrigeration, because they are cool and have constant high humidity. But how are caves formed? What causes those fantastic formations in caves? How do cave formations change as you go deeper in the cave? Get ready for an adventure as you visit a local cave and learn more in this science… Read more
Geo_p039
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Time Required Short (2-5 days)
Prerequisites Access to a cave system
Material Availability This science fair project requires that you own or can borrow safety equipment, such as a hardhat and sturdy shoes, to wear in the cave.
Cost Average ($50 - $100)
Safety In this science fair project you will be visiting caves. Please exercise caution when working in caves because the ground can be slippery. Always stay on prescribed paths. Adult supervision is required. When exploring in caves, always take an adult. Let the authorities in charge of the cave system know about your project and that you will be working in the cave.
Science Fair Project Idea
Are you a budding Marianne Vos or Greg LeMond? Are you into cycling and speed? Then this is the science fair project for you! In this science fair project, you will determine the best gear ratio for your bike, to get the highest speed after a curve and onto a straightaway. You will learn a lot about applied mechanics and gears, all while having fun riding your bike. Read more
ApMech_p043
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Time Required Average (6-10 days)
Prerequisites You must be able to ride a bicycle and have access to a bike path.
Material Availability You must have access to a multi-speed bicycle and bicycling safety gear.
Cost Low ($20 - $50)
Safety Minor injury possible. Wear all necessary bicycling safety gear, especially a helmet. Adult supervision is recommended.
Science Fair Project Idea
Do you love roller coasters and other kinds of exciting rides? Are you a thrill-seeker? Well, this is the science fair project for you! What makes a ride so thrilling that people want to ride it over and over again even though it scares them? Is it the speed, the twists and turns, the vertical drops? In this science fair project, you will build and use an accelerometer to figure out what makes a roller-coaster ride worth standing in line for. Oh, and if Mom and Dad ask what an amusement park… Read more
ApMech_p041
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Time Required Short (2-5 days)
Prerequisites Access to an amusement park.
Material Availability Readily available
Cost Average ($50 - $100)
Safety Make sure that you and your volunteers are healthy enough to ride roller-coaster rides. Always take a break and rest if you start to feel ill. Adult supervision is recommended.
Science Fair Project Idea
Do you wash your hands? You should— it's the best way to prevent the spread of germs. But germs can be tricky; they find nooks and crannies to hide in, so it takes good hand-washing technique to get rid of them. In this science project, you'll investigate which parts of the hand are the most difficult to wash germs off of. Read more
MicroBio_p018
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Time Required Average (6-10 days)
Prerequisites None
Material Availability To do this science project you'll need to order Glo GermTM over the Internet. See the Materials and Equipment section for more details.
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
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.
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