TeachEngineering
Teach Engineering: Composting Competition
In a multi-week experiment, students monitor the core temperatures of two compost piles, one control and one tended, to see how air and water affect microbial activity.
Read Works
Read Works: Too Much Trash
[Free Registration/Login Required] An informational text about recycling to reduce trash in landfills. A question sheet is available to help students build skills in reading comprehension.