A) a law B) a prediction C) a hypothesis D) an observation
A) variable B) hypothesis C) theory D) law
A) a new observation cannot be explained by the theory B) a new scientific instrument becomes widely used C) an old observation is well explained by the theory D) they observe patterns that fit the theory
A) do not rely on other scientific experiments B) do not build on previous knowledge C) provide only one explanation of a problem D) provide a logical explanation of a problem
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) median C) outlier 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) 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 not a reason to reconsider the design if the hose works as planned C) is less important than the total amount of water that it can carry D) is a constraint that needs to be considered in the design process
A) It should make the firefighters feel better about the work they are doing. B) It should be inexpensive and wear out quickly to protect the environment. C) It should fit on the fire truck and attach quickly and easily to fire hydrants. D) It should make work so easy that the company needs fewer firefighters
A) using science to develop technologies B) balancing technological risks and benefits C) using nature to inspire technology D) minimizing risks to develop technology
A) natural inspiration B) possible benefit C) possible risk D) natural constraint
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