Discovery of Sound in the Sea
How to Build a Hydrophone
The materials and procedures for building a hydrophone, an underwater sound collecting device, are provided in this resource. Have high school oceanographers construct the underwater microphone to pick up sound waves. Then take...
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AM I on the Radio?
Learners create a working radio by soldering circuit components supplied from an AM radio kit. They demonstrate an efficient soldering technique, identify the circuit components used to construct their radio, and explain how their radio...
Institute of Electrical and Electronics Engineers
Radio Reception and Transmission
After reading about radio transmission, application, and the difference between AM and FM, small teams of engineers use a kit to construct an FM radio and then send and receive broadcasts. This is an ideal activity for middle school STEM...
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Lemon Batteries Revised
Fifth graders investigate how chemical energy in food and batteries is potential or stored energy. They discuss how batteries function, and create a class list of different forms of energy. Students then create a lemon battery that...
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Circuits
Students draw a schematic diagram of parts needed to build an op-amp. In this physics lesson, students test the operation of their machine. They graph and analyze data using excel.
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Red Shift, Blue Shift
Young scholars demonstrate how stellar spectra measures a star's motion relative to Earth along the line of sight.
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Lithography Techniques/Making a Printed Circuit Board
Students create an electronic schematic on their PCB. In this physics instructional activity, students solder and assemble electronic components. They research the function of these components and share their findings in a group.
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Lead Poisoning and Ceramic Dishes
Students explore the amount of lead in ceramic plates through an experiment. Students determine if everyday dishware is leaching lead into food. They chart their results and discuss how much lead in ceramic dishware may cause lead...
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Are You Being Poisoned by Your Dishes?
Students explore lead poisoning and how it relates to ceramic dishes. They perform an experiment to discover if any of your ceramic ware is leaching lead which might cause lead poisoning.
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Electronic Mapping
Young scholars identify countries, oceans, and capitals by building an electronic map.
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Swamp Thing
High schoolers create a build-it-yourself boat that runs on two small electric motors. Swamp Thing has an electronic brain that can be controlled and steered with a flashlight.