1. Nature of Science
Writing Answers

2. 1. Writing Hypotheses a. It must be an If . . ., then . . . Statement.
b. After the “If”, fill in the descriptive independent
variable.
c. After the “then”, fill in the descriptive dependent
variable.
Example – If I increase the amount of fertilizer,
then the pine trees will grow taller.

3. 2. Writing Independent variables
The Independent Variable (IV) is what is
being changed or tested by the scientist.
b. It must be descriptive. Not just a noun.
c. May be helpful to write as
___________ vs __________.
Example – For example “fertilizer vs.no fertilizer.

4. 3. Writing Dependent variables
a.The DV is the data you are collecting on how
the IV changed the test subjects.
b. It must be descriptive and should include how
the data will be measured.
Example – For example “pine trees grow taller”

5. 3. Writing Conclusions There are two parts to every conclusion:
a. A statement as to whether or not the hypothesis
Was supported.
b. Evidence (including actual data) that supports
your conclusion.
Example – For example “The hypothesis was not
supported. The evidence shows that pine trees
given fertilizer grew to an average height of
68.2cm and pine trees given no fertilizer grew to
an average height of 67.9 cm.”