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Others Like “Crime Scene Chemistry: The Kastle-Meyer Test for Blood”

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Science Fair Project Idea
You may have seen police investigators on TV spraying a crime scene with a liquid that glows blue if there is any blood present. The chemical that glows in the liquid is called luminol. In this chemistry science fair project, you will investigate what factors make this interesting molecule "light up." Read more
Chem_p078
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Time Required Average (6-10 days)
Prerequisites None
Material Availability You will need to order a special kit for this science fair project. You also need access to a digital camera and a tripod. See the Materials and Equipment list for details.
Cost Low ($20 - $50)
Safety Wear latex gloves when handling the chemicals.
Science Fair Project Idea
Does your hair go crazy when the weather turns damp? Did you know that strands of hair can relax and lengthen when the humidity increases and then contract again when the humidity decreases? In fact, hair strands can be used as the basis for a hygrometer, a device which measures the humidity level in the air. Can a human hair hygrometer also detect changes in hair structure caused by chemical lightening? This project shows you how to find out. Read more
MatlSci_p020
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Time Required Long (2-4 weeks)
Prerequisites None
Material Availability Specialty items
Cost Average ($50 - $100)
Safety Adult supervision required for working with hydrogen peroxide-based hair lighteners. Wear protective gloves and eye wear.
Science Fair Project Idea
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 disposable gloves when working with chemicals.
Science Fair Project Idea
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
Have you or one of your pets ever been sprayed by a skunk? Hopefully not, but if you have, you probably know that the smell can be very unpleasant and hard to get rid of. There are many "folk remedies" for getting rid of skunk scent, but if you ever do get sprayed by a skunk, how will you know which one to try? In this science project, you will test the ability of various mixtures to remove the bad scent from rags that have been contaminated with bottled skunk scent, and determine which one… Read more
Chem_p104
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Time Required Average (6-10 days)
Prerequisites None
Material Availability This science project requires purchasing bottled skunk scent. Do not use a live skunk! See the Materials and Equipment list for details.
Cost Average ($40 - $80)
Safety Skunk odor has a very strong smell that can cause nausea and vomiting. This project must be done in a well-ventilated outdoor area. Eye protection and protective clothing are required to avoid contact with skin and eyes.
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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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
Have you ever tried to make parts of your hair lighter than the rest of your hair? Perhaps the way you tried to do it did not lighten it or maybe it turned out a weird orange color? With this science project you can understand why. Read more
Chem_p020
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Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Adult supervision required for working with hydrogen peroxide-based hair lighteners. Wear protective gloves and eyewear. Read and follow the safety notes in the Experimental Procedure section, below.
Science Fair Project Idea
Did you know that your body needs a certain amount of iron in order to stay healthy? Iron can be found in much of what you consume each day. Almond meal—frequently used in cookies—is just one example of an iron-rich food. However, only a small fraction of the iron in food gets absorbed by the body, partially because the body can only absorb dissolved iron. In this project, you will study whether the acidic environment in your stomach helps dissolve iron. You will use a color-based… Read more
HumBio_p043
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Time Required Average (6-10 days)
Prerequisites None
Material Availability This science project requires an iron test kit, available from . The Time Required estimate includes time for obtaining materials. Actual experimental time is only a few hours.
Cost Average ($40 - $80)
Safety The chemicals in the test kit could cause irritation if not handled properly. Be sure to wear gloves, safety goggles, and work in a well-ventilated area. Adult supervision is recommended. The small amount of sulfites contained in the iron indicator tablets may cause an allergic reaction in people who have asthma.
Science Fair Project Idea
Enzymes speed up chemical reactions by factors of at least a million. Now that's acceleration! This project investigates how temperature affects how fast these enzymatic reactions occur. Read more
BioChem_p011
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Must have access to a stove, refrigerator, and a freezer.
Cost Average ($50 - $100)
Safety Use caution when handling the hydrogen peroxide, boiling water, stove, and blender. Adult supervision may be required for using the stove.
Science Fair Project Idea
Topsoil is packed with bacteria that generate electricity when placed in a microbial fuel cell (MFC). Because such bacteria-laden soil is found almost everywhere on Earth, microbial fuel cells can make clean, renewable electricity nearly anyplace around the globe. As natural resources are being depleted, scientists' attention has shifted to pursuing alternative energy sources, such as MFCs, even more than before. A microbial fuel cell, also known as a biological fuel cell, is a device that can… Read more
MicroBio_p032
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Time Required Very Long (1+ months)
Prerequisites Previous experience using a voltmeter/multimeter is helpful, but not required. A basic knowledge of how to work with bacteria is also needed to complete this science fair project. Consult the [# ProjectGuide Name="Advanced.MicrobiologyTechniquesampTroubleshooting" Value="HtmlAnchor" HtmlText="Microbiology Techniques and Troubleshooting" #] guide for information on how to conduct microbiology experiments.
Material Availability A microbial fuel cell and other specialty items are needed. See the Materials tab for more details.
Cost Average ($50 - $100)
Safety Be sure to wear the gloves supplied with the kit when handling the microbial fuel cell’s electrodes (its cathode and anode). The electrodes are made of a conductive material called graphite fiber and should not be placed near electronics or power plugs, or have their fibers dispersed in the air. Use sterile technique when growing the bacteria. Read the before starting any experiments. may be necessary. Adult supervision is recommended.
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