A) a hypothesis B) a law C) an observation D) a prediction
A) law B) variable C) theory D) hypothesis
A) a new observation cannot be explained by the theory B) an old observation is well explained by the theory C) a new scientific instrument becomes widely used D) they observe patterns that fit the theory
A) provide a logical explanation of a problem B) do not build on previous knowledge C) do not rely on other scientific experiments D) provide only one explanation of a problem
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) median B) outlier C) mean D) mode
A) sometimes can be disregarded and left out of the repot B) sometimes can be disregarded but should be reported C) must always be included in your calculations D) should never be included in your calculations
A) study tornadoes visually over several days B) observe tornado speeds remotely C) observe the formation of dangerous tornadoes D) simulate tornado formation
A) is not a reason to reconsider the design if the hose works as planned B) does not need to be considered if firefighters are very strong C) is less important than the total amount of water that it can carry 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) balancing technological risks and benefits B) using nature to inspire technology C) using science to develop technologies D) minimizing risks to develop technology
A) natural inspiration B) natural constraint C) possible benefit D) possible risk
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