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