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science questions.?

QUESTION 1. the steps of the scientific method.. a.) must all be used in every scientific investigatiion b.) must always be used in the same order c.) are not always used in order d.) start with the development of a theory QUESTION 2. In a controlled experiment, a.) a control group is compared with one or more experimental groups b.) there are at least two variables c.) all factors should be different d.) a variable is not needed QUESTION 3. The International System of Units a.) is based on standardized body meeasurements b.) contains units that are based on the number 10 c.) is useful only for measuring lengths d.) is a device used to measure volume QUESTION 4. What toold would a life scientist use to get a three-dimensional image of a microscopic organism? a.) CT scan b.) X ray c.) scanning electron microscope d.) a hand lens

Public Comments

1. Wow--are you asking for help....?? Might want to study a bit next time....
2. 1. d 2. a 3. b 4. a
3. babc i only answer this question because you took the time to write the shit
4. 1 - b 2 - a 3 - b [metric system, whoohooo!] 4 - c
5. 1,C 2,D 3,D 4,A
6. question 1 - answer: a question 2 - answer: b question 3 - answer: do your own homework question 4 - answer: do your own homework
7. Hi. Homework? 1) Always. 2) Control is necessary. 3) We have 10 fingers. 4) You need a microscope to see a microscopic anything.
8. well no duh it is a science question, it wouldnt b here if it wasnt
9. daba
10. a;a;a;? didnt know anything bout #4 sorry. hope u arent totally confused now.
11. So? Read your textbook and do some studying. It's all in there.
12. 1) B. The scientific method does not work at all if the steps are mixed up. 2) A. This is the definition of a controlled experiment. 3) B. This is the metric system. Everything is in 10s. Much easier than the English system. 4) C. A scanning EM makes a 3-D image of a microscopic organism. X-rays & CT scans are used for internal representations. A hand lens does not have enough magnification.