Homework March 22-March 26

Vocabulary for the Week of 22-26 March Understand the meaning of each word. Pretend you work for an environmental action group. Use all words in a persuasive essay describing how and why we should protect the environment. Your test on Friday will be spelling only. acid rain aerosol animal welfare carbon monoxide climate conservation energy nuclear energy solar energy exhaust fumes global warming greenhouse effect (non)-renewable resources nuclear nuclear fallout nuclear reactor ozone layer pesticide pollution rain forest waste nuclear waste Puzzle of the Week In addition to solving the puzzle, students must also answer the four guideline questions regarding the metacognitive processes involved with problem solving. Puzzle: A Growing Proposition You may live for decades, but your hair won't. In fact, a strand of hair has a life-span of about four years for a man, and six years for a woman. If the average person has 90,000 hairs on his or her head, at any one time, what percentage of them must be replaced annually? Man: Woman: How many hairs are replaced annually? Let's say that you first started replacing your hair when you were four years old. Since then, how many hairs have been replaced on your head? Approximately how many hairs have you grown in your lifetime so far? If you live to be eighty years old, and you don't go bald-how many hairs will you have replaced on your head over that period of time? You may use a calculator for your computations and estimations. Don't forget to be reading nightly for at least 20-30 minutes!