Curated OER
Standing Waves
In this waves worksheet, students learn about standing waves and harmonics. Then students complete 11 matching, 15 fill in the blank, and 7 short answer questions.
Curated OER
Plant Parts Chapter #3
A few diagrams and bullet-point notes fill the 24 slides of this presentation on plant parts. The content is advanced enough for high school or college botany courses. The diagrams, however, are of substandard quality and quantity. You...