A) an observation B) a prediction C) a law D) a hypothesis
A) law B) variable C) theory D) hypothesis
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 build on previous knowledge D) do not rely on other scientific experiments
A) minimize the effects of any random factors on his measurements B) use technology to analyze his data C) better understand such large amounts of data by finding an average D) increase his chances of obtaining outliers that he could discard
A) mean B) median C) outlier D) mode
A) sometimes can be disregarded but should be reported B) must always be included in your calculations C) sometimes can be disregarded and left out of the repot D) should never be included in your calculations
A) observe the formation of dangerous tornadoes B) study tornadoes visually over several days C) observe tornado speeds remotely D) simulate tornado formation
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 make work so easy that the company needs fewer firefighters 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 fit on the fire truck and attach quickly and easily to fire hydrants.
A) using nature to inspire technology B) minimizing risks to develop technology C) balancing technological risks and benefits D) using science to develop technologies
A) natural constraint B) possible benefit C) possible risk D) natural inspiration
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