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