Scientific Investigation

Question 1

What makes a question scientific?

Answer 1

Scientific Question

Question 2

Possible explanation or answer for the question

Answer 2

Hypothesis

Question 3

Scientific Experiment

Answer 3

Dependent Variable
* Independent Variable
* Controlled variable
* Procedure
* Level of treatment
* Replication
* Control

Question 4

Well defined and testable phenomenon.

Answer 4

Scientific Questions

Question 5

Scientific questions are _____ and _____ elements

Answer 5

measurable, controllable

Question 6

a proposed explanation (an
answer)

Answer 6

Hypothesis

Question 7

Hypothesis must be _____ and ______

Answer 7

testable, falsifiable

Question 8

then results can either
falsify or support the hypotheses.

Answer 8

Controlled experiment:

Question 9

Hypotheses can also be tested
by observations or synthesis of information from a
variety of sources.

Answer 9

Accumulating data

Question 10

Designing experiments to test Hypotheses
by controlled experiment

Answer 10

• An experiment involves:
• Defining variables.
• Outlining a procedure.
• Determining controls to be used as the
  experiment is performed.

Question 11

this can be measured or counted
or observed in response to experimental conditions

Answer 11

Dependent variable;

Question 12

scientist choose one variable or
environmental condition to manipulate.

Answer 12

Independent variable

Question 13

factors other than the
independent variable that might affect the dependent
variable.

Answer 13

Controlled variables

Question 14

Stepwise method or sequence of steps

Answer 14

. Outlining a procedure

Question 15

the value set of the independent
variable.

Answer 15

Level of treatment:

Question 16

how several the same procedure will be
repeated.

Answer 16

Replication:

Question 17

control

Answer 17

serves as a benchmark that allows the scientist
to decide whether the predicted effect is really due to the
independent variable.

Question 18

_________ are written in the form of “If the
hypothesis is supported, then the results of the
experiment will be……..’’

Answer 18

Making predictions

Question 19

Data must be organized and summarized in
tables and figures.

Answer 19

Presenting and analyzing Results

Question 20

Values of the same kind should read down the column.
2. Non‐essential information and results should be omitted.
3. The headings of each column should include units of measurements
4. Tables are labeled consecutively.
5. Title located at the top of the table, The first and important words
should be in capital.
6. Refer to each table in the written text. (Table 4)

Answer 20

tables

Question 21

provides a visual summary of the results and
show the effect of the independent variable on the dependent
variable

Answer 21

graph or figure