Your task is
to think of a simple household or store bought product or products that you
would like to test in a particular way and design an experiment to do so using
the skills you have developed during our unit on Chemistry and Scientific Process.
This is a 50 mark project.
Things to
consider:
o Your
experiment must have at least two levels of an independent variable.
What is being tested!
o You must have a title, problem,
hypothesis, list of materials, procedure, results (data) and conclusion.
o Your final
presentation will be in the form of a poster that will be presented to the
class.
o You may work
in pairs (Can you work outside of school time with that person?) or on your
own.
o Think through
the entire process carefully before you decide on the hypothesis. What will
your data “look like”? Measurements, survey, graph, chart, diagrams …
o Also think
about what variables you will need to control and whether
or not you need a control sample.
** YOU WILL HAVE TWO CLASS PERIODS TO
WORK ON YOUR PLANNING AND POSTER BUT NOT FOR THE ACTUAL DOING OF THE
EXPERIMENT (Unless you need to come in on your own time at noon or after school
to use lab materials).
EXAMPLE EXPERIMENT: Title: Boiling Water
PURPOSE
(Question):
Does salt water boil at a lower temperature than fresh water? How does the
level of salt affect the boiling temperature? .
Hypothesis: As more salt is added to fresh water the
boiling temperature will increase. Data: fresh water: boiled at 100 Celcius
With l tbsp
salt: boiled at .... with 2 tbsp
salt: boiled a t…. etc.
Concerned about what to do an experiment on
Write down here all the examples we went over in class....
Total Marks = 50 (see breakdown and scale factor below)
Evaluation
Criteria:
10/9- All/most elements and areas are completed in an excellent thorough and outstanding way. A+/A
8- Very
good. A few minor errors or missing items. B+
7- Satisfactory/Good-
some key elements of the criteria are missing or not fully completed. B/C+
6/5- Needs Improvement- several elements of criteria are missing or not complete. C
4/3/2- Not
completed/Incomplete (redo) C-/I
PART 1:
(Scale:
times 4 ie. 10*4=40 marks)
A) Experiment Itself:
-
originality of idea
- has two or more independent variable levels
eg: salt concentrations in water
- data collected is detailed enough for the
hypothesis
- conclusion is justified by data/results
-
procedure
(method) is controlled (non-tested variables are not interfering)
-
all
sections of scientific method are covered thoroughly and clearly (see criteria)
B) Poster Presentation:
-
neatly
and carefully presented
-
creativity,
colour and added illustrations
- methods (procedure) clear and
“duplicate-able”
-
hypothesis
written correctly
-
all
sections of scientific method are covered thoroughly and clearly (see criteria)
A+ A B+
B C+ C C-
PART 2:
Presentation: (10 marks)
v Able to speak knowledgeably about your experiment
v
All elements of the
poster are discussed
v
2-3 minutes long
v
Poster clearly shown
to class
v
Both members of the
group speak and participate
v
Presenter speaks with
clarity and confidence – eye contact with audience
v
Obvious that
presentation has been practiced as it runs smoothly and in an organized fashion
v
Good audience manners.
Active listening, asking questions, on task!
A+ A B+
B C+ C
C-