A) an observation B) a hypothesis C) a prediction D) a law
A) hypothesis B) theory C) variable D) law
A) they observe patterns that fit the theory B) a new observation cannot be explained by the theory C) a new scientific instrument becomes widely used D) an old observation is well explained by the theory
A) provide only one explanation of a problem B) provide a logical explanation of a problem C) do not build on previous knowledge D) do not rely on other scientific experiments
A) minimize the effects of any random factors on his measurements B) increase his chances of obtaining outliers that he could discard C) better understand such large amounts of data by finding an average D) use technology to analyze his data
A) mean B) median C) mode D) outlier
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) observe the formation of dangerous tornadoes B) study tornadoes visually over several days C) observe tornado speeds remotely D) simulate tornado formation
A) is less important than the total amount of water that it can carry B) is not a reason to reconsider the design if the hose works as planned C) is a constraint that needs to be considered in the design process D) does not need to be considered if firefighters are very strong
A) It should be inexpensive and wear out quickly to protect the environment. B) It should make work so easy that the company needs fewer firefighters C) It should make the firefighters feel better about the work they are doing. D) It should fit on the fire truck and attach quickly and easily to fire hydrants.
A) using science to develop technologies B) using nature to inspire technology C) balancing technological risks and benefits D) minimizing risks to develop technology
A) natural inspiration B) possible risk C) possible benefit D) natural constraint
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