1       2      3    4      5    
6         7        8      
11           12          
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15         16            
   17     18             
20          21           


6. In the winter, the wind blows ___ across the frozen lake. It doesn't stop blowing until spring.
9. Would you like your steak ___, medium, or well done? (I'd like it without antibiotics, pesticides, and hormones.)
11. The ___ guard is a useful device that helps keep salads free from people's saliva, snot, and germs. (Well, it helps a LITTLE.)
12. You can ___ all kinds of germs, bacteria, and viruses every time you cough or hand someone folding money.
13. One way that people ___ contagious diseases is by not washing after using the bathroom.
16. If you ___ your doctor's instructions, you might be sorry. (You might be dead!)
19. ___, such as penicillin, fight infectious diseases. But bacteria are adjusting to ___, which aren't effective as they used to be.
20. Young people can't imagine ___ people having sex. (Yuck!)
21. They think that the 100-year-old bridge collapsed simply because of metal ___. (Everything tires out eventually.)


1. Except for the ___ visitor, the new car lot was completely empty. (Blame it on the economy.)
2. Just as there are good and bad people, there are good and bad ___ living in your intestines and your mouth.
3. Sometimes it's impossible to treat the cause of a disease; doctors can only treat the ___s. (Because they don't know the cause!)
4. Herpes is just one example of a sexually transmitted ___ (STD). (There are others, of course--be careful!)
5. The husband had his ___ of what happened and his wife had her ___ of what happened. (There are two sides to every story.)
7. People rarely know if their coworkers or classmates have an active form of ___ (TB).
8. Your doctor will ___ medication for you; take the prescription to your local pharmacist.
10. Generally, a child ___ from an injury or a disease more rapidly and fully than an adult.
14. You will lose your ___ if you're sick or sad. (You might still be thirsty, however.)
15. Some people are naturally more ___ to diseases and infections than other people.
17. Some researchers think that in the future there will be a ___ for every disease, including all forms of cancer.
18. The temperature during the winter does not ___ much--it's usually about 30 degrees all day every day.