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