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Science Fair Project Idea
Lead is a very hazardous element. Even very small amounts can cause health problems, especially in babies and young children. One way to determine if a household item, such as a toy or a piece of jewelry, contains lead is to soak the item in a solution, and then test the solution for lead that might have leached out of the item. The goal of this chemistry science fair project is to determine how varying the pH of the test solution affects its ability to dissolve lead, which is a critical step… Read more
Chem_p080
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Time Required Average (6-10 days)
Prerequisites Some chemistry knowledge will be helpful.
Material Availability Specialty items: You will need a lead test kit, which can be ordered online. See the Materials and Equipment list for details.
Cost Average ($50 - $100)
Safety Adult supervision is required. The chemicals used in this science fair project are potentially hazardous. The test solutions contain lead and should not come into contact with skin or any part of your body. It also contains chemicals that produce a strong "rotten egg" smell, so the procedure should be carried out in a well-ventilated area.
Science Fair Project Idea
Do you ever wonder how markers are made? Where do all of those colors come from? Many of the colorful dyes we use come from plant pigments. Pigments are what make the world around us so colorful. How do chemists turn those natural plant pigments into art supplies? In this science project, become a chemist and make your own marker out of a drinking straw and homemade plant dye! Read more
Chem_p014
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Time Required Very Short (≤ 1 day)
Prerequisites none
Material Availability Filter paper can be purchased from the [# Link Name="PlantBio_p035.1" Value="HtmlAnchor" #].
Cost Very Low (under $20)
Safety Requires adult supervision
Science Fair Project Idea
thumbnail Do you enjoy eating smoothies packed full of berries and other tasty fruits? Or maybe you like drinking a creamy milkshake with peanut butter, chocolate, and bananas. Often, smoothies and milkshakes are tasty to us because of the sugar in them. But did you know there are different kinds of sugar? Some ingredients in a smoothie can have more than one kind of sugar in them, and our bodies process each kind of sugar differently. In this science project, you will measure the concentration of… Read more
FoodSci_p073
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Time Required Average (6-10 days)
Prerequisites None
Material Availability The invertase and lactase for this science project need to be specially ordered. See the Materials and Equipment list for details.
Cost Average ($50 - $100)
Safety No issues
Science Fair Project Idea
thumbnail Maple syrup on pancakes, ripe bananas, and soft drinks are all foods that are tasty to us because of the sugar in them. But did you know there are different kinds of sugar? One food can have multiple kinds of sugar in it, and our bodies actually process the different types of sugars differently. In this science project, you will measure the concentration of two sugars, glucose and sucrose, in different foods and investigate how sucrose is converted into glucose with the help of an… Read more
HumBio_p035
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Time Required Average (6-10 days)
Prerequisites None
Material Availability The invertase for this science project needs to be specially ordered. See the Materials and Equipment section for more details.
Cost Low ($20 - $50)
Safety No issues
Science Fair Project Idea
Police detectives use various scientific tools to analyze evidence at a crime scene. One of the classic tools is the Kastle-Meyer test for the presence of blood. This test is inexpensive, easy to perform, and provides quick results. The test provides evidence if red spots found at a crime scene are actually blood. But the investigator needs to be careful, since other substances can also give a positive result. In this crime scene chemistry science project, you will learn how to perform the… Read more
BioChem_p037
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Time Required Average (6-10 days)
Prerequisites None
Material Availability You will need to order the "Presumptive Blood Test" kit online. See the Materials and Equipment list for details.
Cost Average ($50 - $100)
Safety Be sure to wear safety goggles and disposable gloves when working with the substances and blood kit.
Science Fair Project Idea
Pennies are bright and shiny when they're new, but become quite dull with time. What causes such a drastic change? Oxygen in the air combines with the copper in the penny to form copper oxide, which makes the penny look dull and dingy. You can make the pennies look like new again by soaking them in an acidic solution, like vinegar. Vinegar dissolves the copper oxide, making the pennies look like new. It turns out, however, that the same process that makes the pennies shiny has bad consequences… Read more
Chem_p090
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Time Required Average (6-10 days)
Prerequisites None
Material Availability You will need to order copper test kits online. See the Materials and Equipment list for details.
Cost Average ($40 - $80)
Safety Adult supervision is recommended.
Science Fair Project Idea
thumbnail Chromatography is a method used to separate mixtures of compounds and to identify each compound in the mixture. You may have separated the different inks in a black marker by using a strip of paper and water. There are many different types of chromatography: paper, thin-layer, high-performance thin-layer, gas, and more. You will be using paper or thin-layer chromatography to analyze the compounds from different plants. Chromatography is used by analytical chemists, organic chemists, and many… Read more
Chem_p010
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Filter paper can be purchased from the [# Link Name="PlantBio_p035.1" Value="HtmlAnchor" #].
Cost Low ($20 - $50)
Safety Alcohol is flammable and toxic
Science Fair Project Idea
thumbnail Have you ever had a cut or a bloody nose that seemed like it would bleed forever? Though it might have seemed like a long time, it probably did stop pretty quickly. This is because different factors in a person's blood normally work together to plug the opening caused by the cut in a process called blood clotting or coagulation. However, some people have a genetic disorder called hemophilia that causes them to bleed excessively. If a person has hemophilia, he or she is usually missing some of… Read more
HumBio_p037
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Three different chemicals (sodium citrate, sodium alginate, and calcium chloride) need to be specially ordered. See the Materials and Equipment list for details.
Cost Low ($20 - $50)
Safety Adult supervision may be needed for using a blender. All chemicals in this science project are safe to use (they are common food additives).
Science Fair Project Idea
thumbnail 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
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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- Less Details
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.
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