A) a law B) an observation C) a hypothesis D) a prediction
A) variable B) hypothesis C) theory D) law
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) minimize the effects of any random factors on his measurements C) better understand such large amounts of data by finding an average D) use technology to analyze his data
A) median B) outlier C) mode 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) study tornadoes visually over several days B) simulate tornado formation C) observe the formation of dangerous tornadoes D) observe tornado speeds remotely
A) is less important than the total amount of water that it can carry 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 not a reason to reconsider the design if the hose works as planned
A) It should be inexpensive and wear out quickly to protect the environment. 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 make the firefighters feel better about the work they are doing.
A) minimizing risks to develop technology B) balancing technological risks and benefits C) using nature to inspire technology D) using science to develop technologies
A) possible benefit B) natural constraint C) possible risk D) natural inspiration
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