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