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

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

A) an old observation is well explained by the theory
B) a new observation cannot be 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 rely on other scientific experiments
C) do not build on previous knowledge
D) provide a logical explanation of a problem

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

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

A) should never be included in your calculations
B) must always 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) simulate tornado formation
B) observe tornado speeds remotely
C) study tornadoes visually over several days
D) observe the formation of dangerous tornadoes

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 fit on the fire truck and attach quickly and easily to fire hydrants.
B) It should make the firefighters feel better about the work they are doing.
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) 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 benefit
B) natural inspiration
C) natural constraint
D) possible risk