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

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

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

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

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

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

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

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

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

A) It should fit on the fire truck and attach quickly and easily to fire hydrants.
B) It should make work so easy that the company needs fewer firefighters
C) It should be inexpensive and wear out quickly to protect the environment.
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) minimizing risks to develop technology
D) using nature to inspire technology

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