This unit is a full series of reading comprehensions presenting a thorough view of cell phones in terms of history (when was it invented) techonology (how does it work), society (what are appropriate cell phone manners), and more.
This lesson (including lesson plan and worksheet) explains food chains, and then offers students a variety of activities to illustrate and expand their knowledge.
Students read a story about a typical day in one man's life, then isolate the over 20 uses of electricity, concluding by rewriting the story without electricity.
PLEASE check other areas of the site for more MIDDLE SCHOOL materials. Many materials are multi-aged. Check out the theme units and teaching extras, book units, etc.