Curated OER
Investigation of Timbre
Students design an experiment to analyze the timbre of different instruments. In this physics lesson, students analyze the missing quality in sound. They discuss their results in class.
The Wonder of Science
The Wonder of Science: K Ess3 3: Environmental Solutions
This NSTA vetted source includes resources to teach ideas on reducing the impact of humans on the environment. Included are assessment ideas, videos, examples, lesson plans, and photos of student work.