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Science Fair Project Idea
thumbnail Which type of orange juice has the most vitamin C? In this science project, you will learn how to measure the amount of vitamin C in a solution using an iodine titration method. You will compare the amount of vitamin C in three different types of orange juice: homemade, premium not-from-concentrate, and orange juice made from frozen concentrate. Which do you think will have the most vitamin C? Read more
Chem_p044
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- Less Details
Time Required Average (6-10 days)
Material Availability Titration equipment and supplies are needed. A kit is available from the [# Link Name="Chem_p044.7" Value="HtmlAnchor" #]. See the Materials tab for details.
Cost High ($100 - $150)
Safety Adult supervision required. Concentrated iodine is poisonous if swallowed. Read and follow all safety guidelines in the Procedure. More information is available from the iodine [# Link Name="Chem_p044.1" Value="HtmlAnchor" HtmlText="Materials Safety Data Sheet" #].
Science Fair Project Idea
The iodine clock reaction is a favorite demonstration reaction in chemistry classes. Two clear liquids are mixed, resulting in another clear liquid. After a few seconds, the solution suddenly turns dark blue. The reaction is called a clock reaction because the amount of time that elapses before the solution turns blue depends on the concentrations of the starting chemicals. In this chemistry science fair project, you will explore factors that affect the rate of the iodine clock reaction. Read more
Chem_p091
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- Less Details
Time Required Average (6-10 days)
Prerequisites You should be attending or already have taken an introductory chemistry class. This science fair project requires careful attention to detail and will involve some creative problem solving and independent research on your part.
Material Availability You will need to order a chemical kinetics kit online. See the Materials and Equipment list for details.
Cost Average ($50 - $100)
Safety Wear safety goggles when working with all chemicals. Hydrochloric acid is corrosive to hands and eyes. Wear splash goggles and gloves when handling acids.
Science Fair Project Idea
thumbnail Are oranges highest in vitamin C when they are fresh from the tree (or, in a pinch, the grocery shelf)? Does the amount of vitamin C in an orange change over time, after it has been picked? In this science project, you will find answers to these questions by measuring the amount of vitamin C in a solution using an iodine titration method. Read more
Chem_p043
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- Less Details
Time Required Long (2-4 weeks)
Prerequisites Ideally you would have your own citrus tree with ripe fruit for this science project. The second-best option is to use citrus fruit from a store.
Material Availability Titration equipment and supplies are needed. A kit is available at the [# Link Name="Chem_p044.7" Value="HtmlAnchor" #]. See the Materials tab for details.
Cost High ($100 - $150)
Safety Adult supervision required. Concentrated iodine is poisonous if swallowed. Read and follow all safety guidelines in the Procedure. More information is available from the iodine [# Link Name="Chem_p044.1" Value="HtmlAnchor" HtmlText="Materials Safety Data Sheet" #].
Science Fair Project Idea
thumbnail Have you ever noticed that the salt you are using says it is "iodized"? Iodine is an important micronutrient, which means we need it in small quantities to be healthy. Because iodine is rare in many people's normal diets, it is added to table salt. Then when people salt their food, they are also adding this important micronutrient. In this food science project, you will use some kitchen-friendly chemistry to investigate which types of salt have iodine added (in the form of iodide) and which do… Read more
FoodSci_p011
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- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety No issues
Science Fair Project Idea
When you burn a piece of wood, you start with wood and oxygen, and end up with ashes, carbon dioxide, and water vapor. At no time during the reaction does wood reappear, even momentarily, from the ashes. Most chemical reactions are like this; they move in one direction, from reactants (starting chemicals) to products. In this chemistry science project, you will experiment with a rare and exotic reaction that oscillates. The reaction products appear and disappear for a number of cycles. Because… Read more
Chem_p097
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- Less Details
Time Required Long (2-4 weeks)
Prerequisites A class in chemistry would be helpful, but is not required.
Material Availability You will need to order the Oscillating Chemical Reaction Kit online. See the Materials and Equipment list for details.
Cost Average ($50 - $100)
Safety Adult supervision is required. Minor injury is possible. Be sure to wear safety goggles.
Science Fair Project Idea
thumbnail Everything on our planet is connected together, linked by a giant recycling system called the biogeochemical cycle. It is an amazing process. You can actually investigate how our planet recycles and reuses everything needed to support life by making a small model of the biosphere. What will be important to include in your miniature system so that it can support different types of life? Read more
Geo_p038
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- Less Details
Time Required Very Long (1+ months)
Prerequisites None
Material Availability You will need access to a muddy stream, lake, pond, or march in order to collect mud.
Cost Low ($20 - $50)
Safety Always wash your hands with warm water and soap after handling soil that may contain microorganisms. Use caution if you use a knife. Adult assistance may be needed.
Science Fair Project Idea
thumbnail There are many different types of vinegar that you can buy to use around the kitchen for cooking and pickling. The chemical compound that gives vinegar its tart taste and pungent smell is acetic acid. Do different vinegars have different amounts of acetic acid? How much variation is there between the different types? Find out for yourself with this science project. Read more
Chem_p045
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Specialty items. Note: this project requires the use of a sodium hydroxide solution, which is caustic. You will need to order this chemical through your school.
Cost High ($100 - $150)
Safety Adult supervision required. Follow appropriate chemical safety procedures.
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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- Less Details
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 Most people are not aware that the soil around them is a battle scene. The combatants are very small—bacteria on one side and bacteriophage on the other. The bacteriophage (or phage for short) try to pierce the outer coats of the bacteria and inject them with phage DNA. If successful, the DNA will take over the inner machinery of the bacterial cells and force them to make many copies of the phage. After the copies are made, the bacterial cells break apart, releasing new phage that start… Read more
MicroBio_p029
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Time Required Long (2-4 weeks)
Prerequisites This is an advanced science project that requires access to a laboratory with a water bath and 37°C incubator. The kit you will use has enough supplies to perform the procedure one time. To repeat the procedure, you should order additional supplies (listed in the Materials and Equipment section), or make your own media and agar plates. Working with a science teacher or other mentor who is familiar with growing bacteria and titering phage would be helpful.
Material Availability You will need to order the bacteria, the phage, and the supplies from an online science supply store. See the Materials and Equipment list for details.
Cost High ($100 - $150)
Safety The bacteria (E. coli B) and the phage (T4r) are not dangerous, but you should follow common-sense safety guidelines and wear gloves and safety goggles when working in the lab. Adult supervision is recommended.
Science Fair Project Idea
thumbnail 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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- Less Details
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 [# ProjectGuide Name="Advanced.MicroorganismsSafetyGuide" Value="HtmlAnchor" HtmlShortTitle="true" #]. 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.
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