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Teach Engineering
Weather Alert
Every time a bell rings ... there is lightning in the area. The activity provides directions to build a model of a lightning detection system. Similar to a system designed by Benjamin Franklin, the system uses static...
Purdue University
Design of a Door Alarm
How does electricity work? Budding scientists explore the concepts of electrical currents and open and closed circuits with class discussion and a hands-on activity using a battery to turn on a light bulb. Learners also make predictions...
Essential Energy
Being a Safety Star (Stage 3)
A spark of static electricity contains up to 3,000 volts, while a lightning strike contains around 3,000,000 volts. To understand electricity, its power, and the safety considerations relating to it learners engage in a comprehensive...