A kindergartner has trouble grasping that the amount of juice in the tall glass is the same as the amount of juice in the short glass, and that the large silver dollar is not worth more than the small one. Which concept does he or she lack? classification

symbolic thought

literacy

conservation

Can you tell the size of a woman's coxal bone by observation?

per vehicle mile, motorcyclists are times more likely to die in a crash than passenger car occupants.

Matching: 1. first used by europeans as a local anesthetic; now abused for its euphoric effects 5 marijuana 2. found in coffee beans, tea leaves, and cocoa beans 2 heroin 3. prescribed for pain involving serious injury or surgery 1 morphine 4. illegal derivative of morphine that is sold on the street as a white powder 6 caffeine 5. can evoke feelings of terror and panic 4 lsd 6. causes user to experience a conscious dreamlike state 3 cocaine