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