Chapter 1.2

Question 1

Controlled Experiment

Answer 1

a test of the effect of a single variable by changing it while keeping all other variables the same

Question 2

Manipulated Variable

Answer 2

the factor in an experiment that a scientist purposely changes; also known as the independent variable

Question 3

Responding Variable

Answer 3

the factor in an experiment that a scientist wants to observe, which may change in response to the manipulated variable; also known as a dependent variable

Question 4

Theory

Answer 4

a well-tested explanation that unifies a broad range of observations

Question 5

Spontaneous Generation

Answer 5

hypothesis (disproven) stating that life could arise from nonliving matter