A) a prediction B) a hypothesis C) an observation D) a law
A) law B) theory C) variable 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 only one explanation of a problem B) do not rely on other scientific experiments C) do not build on previous knowledge D) provide a logical explanation of a problem
A) increase his chances of obtaining outliers that he could discard B) use technology to analyze his data C) better understand such large amounts of data by finding an average D) minimize the effects of any random factors on his measurements
A) outlier B) median C) mean D) mode
A) sometimes can be disregarded and left out of the repot B) should never be included in your calculations C) sometimes can be disregarded but should be reported D) must always 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) is not a reason to reconsider the design if the hose works as planned B) is a constraint that needs to be considered in the design process C) is less important than the total amount of water that it can carry D) does not need to be considered if firefighters are very strong
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 risk D) possible benefit
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