How do leaves change color in the fall?

Middle School Life Science

MS:LS 1-6: Construct a scientific explanation based on evidence for the role of photosynthesis in the cycling of matter and flow of energy into and out of organisms.

I've been looking for a good lesson to try out the Experimental Design & Report Sheet that Cookie Barker designed last year, and found it when thinking about the phenomenon of fall leaves. The series of lessons and investigations were really successful, and we stayed organized as a class for a whole week (due to an unfortunate series of fire drills interrupting class) thanks to Cookie's template.

Click here for a copy of the full lesson.