Curated OER
The Invention of the Telephone
Students study the history of the telephone and its inventor. In this communications lesson students complete a tuning fork experiment to further demonstrate how sound is produced.
Curated OER
Eyes in the Sky
Students complete a unit on orbiting spacecraft designed to study astronomical objects. They conduct Internet research on NASA missions, use a satellite dish to downlink information, and construct and launch a rocket out of paper and tape.