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