A) a law B) a prediction C) a hypothesis D) an observation
A) law B) theory C) hypothesis D) variable
A) a new scientific instrument becomes widely used B) they observe patterns that fit the theory C) an old observation is well explained by the theory D) a new observation cannot be explained by the theory
A) do not rely on other scientific experiments B) provide only one explanation of a problem C) provide a logical explanation of a problem D) do not build on previous knowledge
A) increase his chances of obtaining outliers that he could discard B) better understand such large amounts of data by finding an average C) use technology to analyze his data D) minimize the effects of any random factors on his measurements
A) mode B) outlier C) median D) mean
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) simulate tornado formation B) observe tornado speeds remotely C) observe the formation of dangerous tornadoes D) study tornadoes visually over several days
A) is a constraint that needs to be considered in the design process 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) 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 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 nature to inspire technology C) minimizing risks to develop technology D) using science to develop technologies
A) possible benefit B) natural constraint C) natural inspiration D) possible risk
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