Transcript depends

Hypothesis-based Inquiry
An experiment that is set up
to prove or disprove a
hypothesis.
Hypothesis-based inquiry =
Experiment
Control Group vs.
Experimental Group
Control Group
Experimental Group
The group that is not
The group that the
tested. It ensures that experiment is performed
only one variable is being
on.
tested.
Make sure everything is the same between the two
groups, except for what is being test.
Data Collection
Collect the measurable
information that determines
if the hypothesis is correct or
incorrect.
Independent Variable
The part of the experiment
that is changed to produce
results.
Dependent Variable
The measured change due to
the independent variable.
It is called the dependent
variable because it depends
on the independent variable.
SATP Practice
1. An experiment should have a control because it allows
a scientist to test:
A) a conclusion
B) a mass of information
C) several variables D) a single variable
2. Janice tests the effects of sunlight on bean seed
germination. What is the independent variable?
A) amount of sunlight B) the number of bean
seeds
C) rate of germination D) water
SATP Practice
1. Caleb tests the effects of caffeine on the heart rate of
10 people. What is the dependent variable?
A) the 10 people
B) the caffeine
C) heart rate
D) 5 of the people
2. What is the set of steps used to collect information to
test a hypothesis called?
A) a principle
B) a control
C) a theory
D) an experiment