A) a prediction B) an observation C) a law D) a hypothesis
A) variable B) law C) hypothesis D) theory
A) they observe patterns that fit the theory B) a new scientific instrument becomes widely used C) an old observation is well explained by the theory D) a new observation cannot be explained by the theory
A) provide a logical explanation of a problem B) do not rely on other scientific experiments C) do not build on previous knowledge D) provide only one explanation of a problem
A) increase his chances of obtaining outliers that he could discard B) minimize the effects of any random factors on his measurements C) use technology to analyze his data D) better understand such large amounts of data by finding an average
A) mode B) outlier C) median D) mean
A) sometimes can be disregarded and left out of the repot B) must always be included in your calculations C) sometimes can be disregarded but should be reported D) should never be included in your calculations
A) simulate tornado formation B) observe the formation of dangerous tornadoes C) study tornadoes visually over several days D) observe tornado speeds remotely
A) does not need to be considered if firefighters are very strong B) is not a reason to reconsider the design if the hose works as planned 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) using science to develop technologies B) balancing technological risks and benefits C) minimizing risks to develop technology D) using nature to inspire technology
A) natural constraint B) possible risk C) natural inspiration D) possible benefit
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