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Science Fair Project Idea
thumbnail Following a simple black line seems pretty easy, right? But think about it; how do you know what is the line and what is not the line? What if you wanted a robot to follow that line? How would it know what you wanted it to follow? Robots can use simple techniques to sense their surroundings and change their behavior based on what they see. In this engineering project, you will build your own robot that will follow a path without using complicated electronics or programming. Read more
Robotics_p021
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Time Required Average (6-10 days)
Prerequisites You should be familiar with, or be willing to learn how to wire circuits on a breadboard. A little soldering is necessary to complete this science project, so you should also be familiar with the procedure or be able to find a helpful friend or adult.
Material Availability Readily available. See the Materials and Equipment list for details.
Cost Average ($40 - $80)
Safety If you are using the coping saw to make the wheels, use caution and be sure to wear safety goggles. Some steps require soldering, which involves very high temperatures. Use caution when soldering and when using other building tools. An optional step involves a product that must used in an open area, following the manufacturer's directions.
Science Fair Project Idea
thumbnail Are you fascinated by radioactivity and the emission of particles caused by the disintegration of an atom? This science project enables you to observe safely a spectacular display of radioactive decay. Following the instructions in the Procedure, you will be able to isolate a safe radioactive source and build a cloud chamber to watch the radioactive decay. Then you will use your cloud chamber to discover if a plastic lid can shield you from this type of radioactive decay particles. Read more
Phys_p086
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Time Required Average (6-10 days)
Prerequisites Basic understanding of, or willingness to study independently, the atomic model and what radiation is.
Material Availability Specialty items are required. See the Materials tab for details.
Cost Average ($50 - $100)
Safety

You will be working with radioactive material in this science project; it is completely safe as long as the simple safety instructions in the Procedure are followed.

This project uses isopropyl alcohol, a flammable product. Do not use it near an open flame or anything hot.

Dry ice is colder than regular ice and can damage your skin. Wear insulating gloves when handling it.

If you choose to take apart a smoke detector, be very careful when cutting through metal or plastic. Cut edges might be sharp. Adult help and supervision is required. Minor injury is possible.

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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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 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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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
thumbnail Watching a spacecraft launch is an amazing experience. It is thrilling to see it lift off and escape Earth's gravity. Did you know that it takes a chemical reaction to get a spacecraft into space? Every time you see a one blast off, you are watching chemistry at work. In this chemistry science fair project, you will also get to blast an object into the air. You will not be using the same fuel that NASA uses for the rockets that launch their spacecrafts; instead, you will use two simple… Read more
Chem_p086
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Wear safety goggles to prevent eye injury during launch.
Science Fair Project Idea
thumbnail 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 water that is corrosive enough to strip off the copper oxide layer. It turns out, however, that the same process that makes the pennies shiny has bad consequences when it comes to copper pipes: it… Read more
Chem_p090
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Time Required Short (2-5 days)
Prerequisites None
Material Availability A copper test kit and other specialty supplies needed for this project are available through the [# Link Name="Chem_p090.7" Value="HtmlAnchor" #].
Cost Average ($40 - $80)
Safety Adult supervision is recommended.
Science Fair Project Idea
thumbnail Earth is an amazing planet. It has everything that we need: food, shelter, and water. Sure, we need water to drink, but have you thought about using water to create energy? Moving water has a lot of energy and all we need to do is to harness it. Moving water made the Grand Canyon. That took a lot of energy! In this science fair project, you will demonstrate the power of water by converting the kinetic energy in moving water to mechanical energy, which will lift a small weight. Read more
Energy_p021
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Time Required Short (2-5 days)
Material Availability A drill is needed.
Cost Low ($20 - $50)
Safety An adult's help will be required to drill holes.
Science Fair Project Idea
thumbnail Piezoelectric barbecue fire starters work by creating a spark that ignites the volatile lighter fluid, which then starts the charcoal burning. They are low current, high voltage devices. How high does the voltage have to get to make a spark in air? This project shows you a way to find out by with an inexpensive experimental setup to measure the distance that the spark can travel between two spherical electrodes. Read more
Elec_p032
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Adult supervision recommended
Science Fair Project Idea
thumbnail Do you realize that you are constantly bombarded by particles? You do not feel them, you cannot see, hear, or smell them, but they are always there! These particles — collectively called background radiation — might even travel through you without ever interacting with the molecules in your body. In this science project, you will build your own cloud chamber to prove the existence of background radiation. You will then use your cloud chamber to determine if the background… Read more
Phys_p087
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- Less Details
Time Required Short (2-5 days)
Prerequisites This project requires patience and the ability to sit still and make small scale observations for 20 minutes.
Material Availability Readily available
Cost Low ($20 - $50)
Safety Do not use isopropyl alcohol near an open flame or anything hot.

Dry ice is cold and can damage your skin. Wear protective gloves when handling it.
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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- Less Details
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.
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