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How Solar Cells Work: Converting Sunlight to Electricity
Students examine how to convert sunlight to electricity. In this renewable energy sources lesson students explain how solar cells are used and use a voltmeter to measure the energy produced by a solar panel.
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When Moore Is Less for Microprocessors
High schoolers in technology classrooms review how microprocessors work, examine Moore's Law, and relate it to the predicted end that is in sight for silicon dioxide-based transistors used in billions of chips.
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Binary Coding
Students identify different uses and forms of coding information, such as memory chips, discuss and create list of everyday items in which memory devices are used, watch video, play Bits and Bytes Game, and use binary code to encode and...
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Experiments in Nanotechnology: Ferrofluids
Students explore the world of nanotechnology by synthesizing ferrofluids in a series of chemical reactions. In small groups, they follow the procedure to create the ferrofluids using precise measuring techniques. They test the resulting...
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Applied Science - Physics Lab
Young scholars investigate electricity. In this Physics lesson, students experiment with insulators and conductors of electricity. Young scholars use batteries as the energy source for the experiment.
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Photocells II: The Photoelectric Effect in Photocells
Students discuss the principles of atomic structure that underlie the operation of a photovoltaic cell and explains how they apply to a photovoltaic cell's operation. An area of the classroom is staked off to represent a photovoltaic...
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More for my Money
Young scholars solve problems involving ratio and proportion. In this algebra lesson, students analyze the currencies found in different countries. They create formulas to convert between the different currencies and use ratio and...
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The Pure, The Mixture, The Unknown
Ninth graders participate in classroom discussions, demonstrations and hands-on laboratory activities about pure substances and mixtures with a focus on common household materials. They investigate: What is a pure substance? What is a...
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Human Computer Game
Learners view the "Parts of a Computer" Power Point presentation then they view the inside of a computer and break down each operating system and its job. They compare and contrast the difference between human and computer parts that...
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Watching Crystals Grow
Students observe crystal growth of Epsom salts and the variables that hinder or help their nucleation and growth. They illustrate a series of drawings/pictures as the crystals grow. They look for the different shapes they form as well...
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Using Transistors: Let's Get Transistorized!
Students build two circuits and explore how transistors function. This activity allow them to observe the operation of a transistor as an amplifier.
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The Story of the Transistor
Students brainstorm on how certain items have become smaller as technology advances. They watch a video about the history of the transistor.
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Scientists at Work: What'll they think of next?
Students explore scientific discovery while watching a video. They, in groups, are to research a scientific invention and present their findings to the class.