Scientific Method Review

Data that are qualitative are always-

• described in words

• represented in numbers

• repeated for verification

• the most accurate type of data

What is NOT an example of qualitative data?

• the average high daily temperature for the month of july

• the names of chemicals found in breakfast cereal

• the zip codes in which each high school student resides

• types of shoes worn by pedestrians on a city street 

A hypothesis is-

• a possible explanation of an observation that can be tested

• a proven statement

• a conclusive statement

• a definite answer to a possible problem

You suggest that the absence of water could prevent the growth of bread mold. This is-

• a hypothesis

• a conclusion

• an experiment

• an analysis

The purpose of a controlled experiment is to allow a scientist to isolate and test-

• a single variable

• several variables

• many data

• a conclusion

Is the following question testable?

Does the amount of fertilizer affect how tall a flower grows?

• yes

• no

Is the following question testable?

Are roses prettier flowers than tulips?

• yes

• no

Is the following question testable?

Do daffodils smell better than carnations?

• yes

• no

Is the height of a ball's bounce affected by the height from which the ball is dropped? What is the dependent variable?

• height from which the ball is dropped

• type of ball

• height of the ball's bounce

What amount of sunlight makes pea plants grow tallest? What is the independent variable?

• height of pea plants

• amount of sunlight

• type of soil