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

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

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

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

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

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

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

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

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

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

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