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

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

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) 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) better understand such large amounts of data by finding an average
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) study tornadoes visually over several days
B) observe the formation of dangerous tornadoes
C) observe tornado speeds remotely
D) simulate tornado formation

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

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

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

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