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

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

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) do not rely on other scientific experiments
C) provide only one explanation of a problem
D) provide a logical explanation of a problem

A) use technology to analyze his data
B) increase his chances of obtaining outliers that he could discard
C) better understand such large amounts of data by finding an average
D) minimize the effects of any random factors on his measurements

A) median
B) outlier
C) mode
D) mean

A) should never be included in your calculations
B) must always 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) does not need to be considered if firefighters are very strong
C) is less important than the total amount of water that it can carry
D) is not a reason to reconsider the design if the hose works as planned

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 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) balancing technological risks and benefits
D) using science to develop technologies

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