1. true or false: not every lightning strike produces thunder. 2. for a negative polarity lightning strike, in which direction does the stepped leader travel (upward or downward)? 3. why is lightning most common in florida? 4. true or false: if you are about to be struck by lightning, your hair might stand on end. 5. true or false: lightning can sometimes occur on hot and humid summer evenings when there are no thunderstorms. 6. if you see a flash of lightning and hear thunder 10 seconds later, how far is the lightning from you? 7. true or false: if you touch someone who has been struck by lightning, you might get electrocuted. 8. in a typical thunderstorm, positive charge builds at the top of the cloud. why? 9. if you are in an open area with no nearby shelter, and you feel as though you are about to be struck by lightning, what should you do? 10. how many times per second do lightning strikes happen on earth?