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

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

A) they observe patterns that fit the theory
B) a new scientific instrument becomes widely used
C) a new observation cannot be explained by the theory
D) an old observation is well explained by the theory

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) use technology to analyze his data
C) increase his chances of obtaining outliers that he could discard
D) better understand such large amounts of data by finding an average

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

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

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

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

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 make the firefighters feel better about the work they are doing.
D) It should fit on the fire truck and attach quickly and easily to fire hydrants.

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

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