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

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

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

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

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

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

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

A) is less important than the total amount of water that it can carry
B) does not need to be considered if firefighters are very strong
C) is not a reason to reconsider the design if the hose works as planned
D) is a constraint that needs to be considered in the design process

A) It should be inexpensive and wear out quickly to protect the environment.
B) It should fit on the fire truck and attach quickly and easily to fire hydrants.
C) It should make the firefighters feel better about the work they are doing.
D) It should make work so easy that the company needs fewer firefighters

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

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