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

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

A) a new observation cannot be explained by the theory
B) they observe patterns that fit the theory
C) an old observation is well 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 a logical explanation of a problem
D) provide only one explanation of a problem

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

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

A) must always be included in your calculations
B) should never be included in your calculations
C) sometimes can be disregarded and left out of the repot
D) sometimes can be disregarded but should be reported

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

A) does not need to be considered if firefighters are very strong
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) 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 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 fit on the fire truck and attach quickly and easily to fire hydrants.

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

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