A) a prediction
B) a hypothesis
C) an observation
D) a law

A) theory
B) hypothesis
C) law
D) variable

A) a new scientific instrument becomes widely used
B) a new observation cannot be explained by the theory
C) they observe patterns that fit the theory
D) an old observation is well explained by the theory

A) provide a logical explanation of a problem
B) do not build on previous knowledge
C) provide only one explanation of a problem
D) do not rely on other scientific experiments

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) mode
B) mean
C) outlier
D) median

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 tornado speeds remotely
B) study tornadoes visually over several days
C) observe the formation of dangerous tornadoes
D) simulate tornado formation

A) is a constraint that needs to be considered in the design process
B) is not a reason to reconsider the design if the hose works as planned
C) does not need to be considered if firefighters are very strong
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 work so easy that the company needs fewer firefighters
C) It should be inexpensive and wear out quickly to protect the environment.
D) It should make the firefighters feel better about the work they are doing.

A) balancing technological risks and benefits
B) using nature to inspire technology
C) minimizing risks to develop technology
D) using science to develop technologies

A) possible risk
B) natural constraint
C) possible benefit
D) natural inspiration