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

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

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

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

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

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

A) is not a reason to reconsider the design if the hose works as planned
B) does not need to be considered if firefighters are very strong
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 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) minimizing risks to develop technology
B) balancing technological risks and benefits
C) using science to develop technologies
D) using nature to inspire technology

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