A) an observation B) a hypothesis C) a prediction D) a law
A) variable B) hypothesis C) theory D) law
A) an old observation is well explained by the theory B) a new observation cannot be explained by the theory C) they observe patterns that fit the theory D) a new scientific instrument becomes widely used
A) provide only one explanation of a problem B) do not rely on other scientific experiments C) do not build on previous knowledge D) provide a logical explanation of a problem
A) minimize the effects of any random factors on his measurements B) use technology to analyze his data 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) sometimes can be disregarded and left out of the repot B) should never be included in your calculations C) must always be included in your calculations D) sometimes can be disregarded but should be reported
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 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 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) using nature to inspire technology D) minimizing risks to develop technology
A) possible benefit B) possible risk C) natural constraint D) natural inspiration
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