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