Originally Posted by Lars Im not too sure how to word this so hang with me 
Well, my year. 8 science teacher is not the brightest bulb in the box, but he absouloutly stumped me with a question today; "Why is gravity there?". Is there even an answer for this? If I dont get a good answer by monday I have a lunch time clean up (long story). Am I crazy or is that an impossible task to set (especially for an 8th grader). 
Perhaps you've answered your science teacher's doubletalking question best in commenting that he's not the brightest bulb in the box. His question translates to the question of 'Why?', squared, applied to FILL IN HERE, squared? You might try asking him to rephrase his question, or, perhaps reply with 'Why do you ask?' ('Why' tends more toward theology than hard science)