a. Why were the Angels collecting these samples?
b. Why did they need the samples from these guys instead of just using their own?
c. What else is there about the human body that is different for every being?
2. Students can study projectile motion at the following website: http://www.glenbrook.k12.il.us/gbssci/phys/Class/vectors/u3l2b.html
3. This clip can be used to introduce Newton’s Second Law of Motion. A fun way to do this is to build and shoot rockets. A good rocket building lesson can be found at: http://wings.avkids.com/Curriculums/Forces_Motion/rocketlaunch_summary.html