A) a law B) a prediction C) an observation D) a hypothesis
A) law B) theory C) variable D) hypothesis
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) provide only one explanation of a problem B) do not build on previous knowledge C) do not rely on other scientific experiments 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) mode B) outlier C) median D) mean
A) should never be included in your calculations B) sometimes can be disregarded and left out of the repot C) must always be included in your calculations D) sometimes can be disregarded but should be reported
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 a constraint that needs to be considered in the design process B) is not a reason to reconsider the design if the hose works as planned C) does not need to be considered if firefighters are very strong D) is less important than the total amount of water that it can carry
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) minimizing risks to develop technology B) using science to develop technologies C) using nature to inspire technology D) balancing technological risks and benefits
A) natural constraint B) possible risk C) natural inspiration D) possible benefit
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