Biology Junction
DNA Technology
One of the first biotechnology breakthroughs occurred in 1982 with the creation of synthetic insulin. Young scientists learn about DNA technology with a presentation and accompanying worksheet. It focuses on DNA extraction and...
Curated OER
Proofreading Activity: "The Twentieth Century"
In this proofreading worksheet, students mark infinitives, prepositional phrases, subjects and verbs in a paragraph titled "The Twentieth Century,"then edit for missing commas.