Science Kits Instructions

The Electronic Sensors Kit (SB-SENSOR) kit can be used with the Science Fair Project Ideas listed below. Click on any project below to see the full information. Using the tabs on the project, you can view background information and the steps of the experimental procedure.

Green Technology: Build an Electronic Soil Moisture Sensor to Conserve Water
Science Fair Project Idea
thumbnail Water is a valuable resource, and water shortages are a serious problem in many parts of the world. The problem can be made worse by people who waste water; for example, by watering a garden or using sprinklers on their lawn (or a farmer taking care of an entire field) when it has rained recently or the soil is already moist. How can you help conserve water and prevent such waste? One way is to build an electronic soil moisture sensor. This project will show you how to build a circuit that… Read more
Elec_p066
+ More Details
- Less Details
Time Required Short (2-5 days)
Prerequisites Familiarity with using a solderless breadboard, or willingness to learn.
Material Availability Specialty electronics items are required. A kit is available from our partner ….
Cost Average ($50 - $100)
Safety Short circuits can get very hot. Double-check all of your wiring before you connect the 9 V battery.
How Do You Take Your Tea? Make a Simple Electronic Device to Measure the Strength of Tea
Science Fair Project Idea
thumbnail A nice hot cup of tea sure can wake and warm you up in the morning. In this project, you will investigate the chemistry of tea. The longer you steep a tea bag in hot water, the stronger the tea will be. But how does the strength of the tea change with longer brewing time? In this project you will make a very simple electronic device to measure the strength of tea. The device will determine how strong the tea is by measuring the amount of light the tea absorbs. Read more
FoodSci_p058
+ More Details
- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Specialty electronics items are required. A kit is available from our partner ….
Cost Average ($50 - $100)
Safety Adult supervision is required when boiling water.
How Does the Intensity of Light Change with Distance?
Science Fair Project Idea
thumbnail How does the intensity of a light source change as you move away from it? This project describes a method to verify the inverse square law: how light, sound, electrical signals, and gravity each decrease with distance from their source. It does not matter if you are talking about a lightbulb or the sun; this law still applies! Read more
Elec_p028
+ More Details
- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability For your convenience a kit is available for this project from our partner ….
Cost Average ($40 - $80)
Safety No issues
Avoid the Shock of Shocks! Build Your Own Super-sensitive Electric Field Detector
Science Fair Project Idea
thumbnail Wouldn't it be nice to avoid those nasty electric shocks you get after you have walked around on carpet and then touch a doorknob? These shocks are caused by static electricity. In this project, you will build a super-sensitive charge detector to investigate the electric fields created by static electricity. The detector can sense invisible electric fields before you touch something and get zapped, so try this project to avoid the shock of shocks! Read more
Elec_p050
+ More Details
- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites Familiarity with using a solderless breadboard, or willingness to learn.
Material Availability For your convenience a kit is available for this project from our partner ….
Cost Average ($50 - $100)
Safety No issues
From Turbid to Clear: How Flocculation Cleans Up Drinking Water
Science Fair Project Idea
thumbnail Your drinking water probably started out brown and muddy. Are you surprised? Maybe you were picturing it flowing from a clean mountain spring instead? All over the world, including in 68% of American homes, people get their drinking water from rivers, lakes, and other surface waters. This water is filled with dirt, debris, and other contaminants as it travels hundreds of miles. So, how does your drinking water go from brown and muddy to crystal clear? Often, flocculants—substances that… Read more
EnvEng_p039
+ More Details
- Less Details
Time Required Short (2-5 days)
Prerequisites Some basic knowledge in chemistry would be helpful, but is not necessary.
Material Availability This project requires special electronic parts available from our partner …. See the Materials section for details. For data analysis, a spreadsheet program, such as Google SheetsTM or Microsoft® Excel®, is helpful.
Cost Average ($50 - $100)
Safety No issues
Measuring Magnetic Fields
Science Fair Project Idea
thumbnail Have you ever noticed how magnets appear to have no effect on each other when they are far apart? Then, when you slowly move them closer together, you will start to feel a gentle pull until they suddenly snap together? How exactly does the strength of a magnet change with distance, and how would you measure it if you wanted to find out? In this project you will build a circuit that can measure the strength of a magnetic field and see how the field strength changes with distance. Read more
Elec_p030
+ More Details
- Less Details
Time Required Very Short (≤ 1 day)
Material Availability For your convenience, specialty items for this project are available in a kit from our partner ….
Cost Average ($40 - $80)
Safety Short circuits can get very hot. Double-check all of your wiring before you connect the 9 V battery.
How Blue is Your Sports Drink?
Science Fair Project Idea
thumbnail Do you read the list of ingredients in foods and drinks before you buy them at the grocery store? If you do, you may have noticed that many of the items, especially colored drinks, contain dyes with names such as FD&C Blue 1, Red 40, or Yellow 5. But how much dye is needed to create all these colors? In this chemistry science project, you will build a simple spectrophotometer that is able to measure the concentration of colored chemicals in solutions. You will test your device by measuring… Read more
Chem_p075
+ More Details
- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites Some knowledge of basic chemistry, as well as familiarity with electronics, would be helpful, but is not required.
Material Availability For your convenience a kit is available for this project from our partner …. For data analysis, a spreadsheet program, such as Google SheetsTM or Microsoft® Excel® is helpful.
Cost Average ($50 - $100)
How Bright Is Your Glow Stick? Measure It!
Science Fair Project Idea
thumbnail Objects that glow in the dark hold a special place in the imagination of both children and adults. The lights go out at night, but these odd things refuse to disappear. Where does the light come from? Do they work in any climate? In this science fair project, you will make a very simple electronic device to measure the light given off by luminescent materials. The device will be used to study how temperature affects luminescence. Read more
Chem_p072
+ More Details
- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites Familiarity with basic chemistry and electronics would be helpful, but is not required.
Material Availability For your convenience a kit for this project is available from our partner …. For data-analysis, a spreadsheet program, such as Google SheetsTM or Microsoft® Excel® is helpful.
Cost Average ($50 - $100)
Safety Use caution when using the drill or knife. Wear safety goggles when using the drill.
Making Milk Curdle with Pineapple Enzymes
Science Fair Project Idea
thumbnail Have you ever gone to pour yourself a cup of milk and all you get is milk clumps? What happened to the milk is called coagulation, which is the mechanism that occurs when proteins in the milk clump together. While you do not necessarily want this in your milk, without coagulation (or curdling), there would not be any cheese or yogurt, which is why it is a very important process in the food industry. But what makes milk curdle? In this science project you will use pineapple juice to curdle milk… Read more
BioChem_p032
+ More Details
- Less Details
Time Required Short (2-5 days)
Prerequisites A familiarity with basic chemistry and experience with simple electronics would be helpful, but is not absolutely required.
Material Availability For your convenience a kit is available for this project from our partner …. For data analysis, a spreadsheet program, such as Google SheetsTM or Microsoft® Excel® is helpful.
Cost Average ($50 - $100)
Monitor Your Plants with a Soil Moisture Sensor *
Science Fair Project Idea
thumbnail Do you or your family have a lawn, garden, or potted plants that you water regularly? Irrigation—or the artificial application of water to plants and landscaping—accounts for over two-thirds of the world's freshwater consumption (U.S. Geological Survey, 2016)! While that total includes farms, in the United States landscape irrigation still accounts for almost one-third of residential water use. As much as half of that water is wasted due to inefficient watering methods (WaterSense,… Read more
PlantBio_p050
+ More Details
- Less Details
Time Required Very Long (1+ months)
Material Availability For your convenience, a kit is available for this project from our partner ….
Cost Average ($50 - $100)
Adsorption: Dyeing Fabrics with Kool-Aid
Science Fair Project Idea
thumbnail Have you ever wondered how your clothes get their color? Dyeing textiles is a very complicated process and involves a lot of chemistry. Not only are the properties of the dye and fabric important, but the dyeing conditions also have to be exactly right to get optimal color adsorption. Curious about how it works? In this science project, you will color wool with Kool-Aid® and explore the chemistry of dyeing. Read more
Chem_p106
+ More Details
- Less Details
Time Required Short (2-5 days)
Prerequisites Knowledge of basic chemistry is helpful as well as a good understanding of mathematical operations such as algebra and simple linear regression.
Material Availability This project requires special electronic parts. A kit is available from our partner …. For data analysis, a spreadsheet program, such as Google SheetsTM or Microsoft® Excel®, is helpful.
Cost High ($100 - $150)
Safety This project requires working with boiling water. Make sure to take precautions to prevent burns from the hot liquid.

The Electronic Sensors Kit (SB-SENSOR) kit can be used with the Lesson Plans listed below. Click on any lesson plan below to see the full information.

Environmental Monitoring
Lesson Plan
Does human activity impact the environment? If so, how can we measure our impact on the environment? How can we use these measurements to change our behavior? In this project, your students will explore these questions by designing and building an electronic circuit that can measure environmental parameters like water quality or light pollution. Read more
Protecting Nature with Technology
Lesson Plan
thumbnail You might have read about the negative impacts modern human civilization has had on the environment, like pollution, deforestation, and extinction of animal species. How can we use modern technology to help protect the environment? In this project-based lesson students will design an electronic circuit that can measure something in the environment like water quality and light pollution, and develop a plan for how their circuits could be used to solve a real-world problem. Read more

Each Science Fair Project Idea has a help tab within the project instructions, please look there first for a list of answers to frequently asked questions. If you have additional customer service inquiries, please e-mail help@sciencebuddies.org.