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