A) a hypothesis B) an observation C) a law D) a prediction
A) hypothesis B) theory C) variable D) law
A) an old observation is well explained by the theory B) a new scientific instrument becomes widely used C) a new observation cannot be explained by the theory D) they observe patterns that fit the theory
A) provide only one explanation of a problem B) provide a logical explanation of a problem C) do not rely on other scientific experiments D) do not build on previous knowledge
A) minimize the effects of any random factors on his measurements B) better understand such large amounts of data by finding an average C) increase his chances of obtaining outliers that he could discard D) use technology to analyze his data
A) median B) mode C) outlier D) mean
A) must always be included in your calculations B) sometimes can be disregarded but should be reported C) sometimes can be disregarded and left out of the repot D) should never be included in your calculations
A) observe tornado speeds remotely B) simulate tornado formation C) observe the formation of dangerous tornadoes D) study tornadoes visually over several days
A) does not need to be considered if firefighters are very strong B) is less important than the total amount of water that it can carry C) is not a reason to reconsider the design if the hose works as planned D) is a constraint that needs to be considered in the design process
A) It should fit on the fire truck and attach quickly and easily to fire hydrants. B) It should be inexpensive and wear out quickly to protect the environment. C) It should make work so easy that the company needs fewer firefighters D) It should make the firefighters feel better about the work they are doing.
A) using nature to inspire technology B) using science to develop technologies C) balancing technological risks and benefits D) minimizing risks to develop technology
A) natural inspiration B) possible benefit C) natural constraint D) possible risk
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