4th grade
Wonder Quest - returned 9/28/13
Guess: Because nutrients from the Earth are brown and sunlight is yellow and they go through the plant stems. Brown and yellow = green
Method of research: online search of an encyclopedia
Researched answer: Like leaves, plant stems can contain chloroplasts which look like flat green disks under a microscope. So stems that are green are converting sunlight into energy for the plant.
1st grade
