Zernicke,
Megan
Rieth,
Kyle
Rodman,
Kaitlyn
Osheim,
Rhonda
Krohn,
Klayton
Adams,
Alycia A
Zahuron
es,
Samantha
Yolitz,
Derek
Rusch,
Cassandr
a
Schade,
Samanth
Pagel,
Ashley
Pazio,
Antonio
Lee, Jeff
Lee, Nhia
Yang, Pa
Houa
Stark,
Brian
Penn,
Kailey
Lor, Frank
Wulk,
Nathan
Vue, Yu
Utecht,
Nathan
Thao,
Jerry
Zuber,
Blaz
Zoromski,
Abigail
Stichman,
Adam
Swope,
Alexander
Taylor,
Samantha
Reich,
Benjamin
Rosnostik,
Jaden
Punke,
Abraham
Putnam,
Connor
Rausch, Raymond,
Julianne
Mariah
Stainbrook
, Jarad
Marr,
Kiana
Miller,
Lizzy
Mills,
Libby
Nehrbass,
Terrance
O'Malley,
Kelsey
Holzem,
Justin L
Hunt,
Madeline J
Jasper,
Cynthia L
Jordan,
Cobi R
Knoll,
Elizabeth L
Chang,
Lily
Farkas,
Jaclyn E
Graveen,
Ariel L
Grawien,
Jordan M
Her,
Hideko
Staszak,
Tiffany
Pophal,
Brandon
Maaser,
Matthew
Hillery,
Austin P
Hirst,
Justin
Hitz,
Joseph L
Hoeft,
Spencer
Hoff,
Raelena C
Ademi,
Shainna
M
Andrade,
Savannah
M
Bandura,
Samantha
Burazin,
Allison G
Butts,
Vernon T
http://www.dailymotion.com/video/xrtva3_i-m-farming-and-i-grow-it_fun
Ohde,
Erica
We’ll go through the
Scientific method that you’ll
be using in Agri-science on
lab days…
Typically During LG:







Put the date in the margin on your
notepaper/notebook
Always leave a space between new topics
If you miss notes we will have a page on moodle
for you to access by next week.
There will usually be 2 individual assignments/ labs
collected per week.
Other than that there will be group work and
quizzes/tests.
No cell phones!!!
Any problems with your grade… see STASZAK- he
leaves before East by noon!
The Scientific Method
The Scientific Method
• The scientific method is a logical
problem solving technique.
• This is the method on which Labs for Ag
will be based.
• It is used by researchers to
systematically support or disprove a
theory or idea.
Where does it
all begin?
Some of us may
need a light source!
I usually just
need coffee!
We call this “observations”
Different
resources use
different
models
We will use the following for
your journals…
The Scientific Method
For this class the Scientific Method involves 6 steps:
(Write these down on the introduction notesheet.)
You will need a
lab journal by
Monday.
It should
be
multi-subject!
Why projects
fail…
http://www.youtube.com/
watch?v=52yjQEEdnso
The Scientific Method
You observe something in the
material world, using your senses.
It changes
direction.
Ah…look at
this path…
Questions arise
from a good
observation…
This leads to the problem.
The Scientific Method
• You ask a question about what
you observe.
• State the problem/ question/
purpose to do an investigation
between 2 variables.
The Scientific Method
• Prediction of what the
answer to question might
be.
Example:
If a mouse is dropped
from increasing heights
Then bounce heights will
also increase
Because …
We use IF,
THEN,BECAUSE
format
If restates the
problem,
Then includes your
projected outcome,
Because highlights
background
knowledge
What are the
2 variables?
You will always
identify them under
the Hypothesis for
this class
Which one can
you “set” for the
experiment?
This is known as the
“independent”
variable because
you “set” it.
Which one
“depends” on
what you “set”?
This is known as the
“dependent”
variable.
Does a mouse
bounce
anyway?
A question like this would
be answered with a
control set-up for normal
conditions when data
collection begins.
It probably
splatters?
You would have to
re-hypothesize and
re-design based on
measuring ‘splats’
It probably
splatters?
Probably a bigger
splat from high up…
Save Fred!
Your vermi-compost
will be useless if Fred
drowns and cannot
reproduce with
Wilma!
The Scientific Method
• Method to test whether hypothesis
is supported.
• Steps to measure and record data
comparing independent and
dependent variables.
The Scientific Method
• Record of results in data tables or
other organized display.
• 3 or more independent variables
“tested” with 3 trials for “good
science”
Format to title data tables at West:
X variable vs. Y variable (alphabetical)
What would this be titled?
2011 Caring Dairy Farm Performance
in the US
for
The Scientific Method
• Graph to reorganize trends or
patterns not evident or visible in
the data tables.
• Questions that identify trends
• Calculations/ error analysis.
Why do we make a graph?
They
help us
visualize numerical
data.
There
are three
types of graphs:
bar, pie and line
Bar Graphs
Compares multiple
objects
Pie Graphs
Compares parts of a
whole population
Line Graphs
Shows relationship
between variables
Take out the
mini-scantron
for a quiz
Best fit line
This is a smooth or
straight line that is
an average of all
data points.
1. Identify each type of graph:
 A.
bar
 B. line
 C. pie
2. Identify the relationship as:
 D.
direct
 E. inverse
3. Write down:
a. independent and
b. dependent variables on the back
Let’s do this together-
A.Independent =
the
and/or the
since 3 sets of
data are
present
B.Dependent =
1. A
2. E
3. On the back of
the mini-scantron
write the #1
1.
2.
3. (Notice the best fit line in black)
Pounds
4.
Year
5.
6. Use the tractor data
7. Use the horse data
8.
9.
10.
3 different line graph relationships:
DIRECT
relationshipone increases
the other
increases
INVERSE
relationshipone increases
the other
decreases
CONSTANT
relationship –
no change
The Scientific Method
• State whether your prediction
was supported with evidence
from data analysis
• Explain results extending to
everyday life.
Scientific Method Song
http://www.youtub
e.com/watch?v=Z
7P9TKkAnhA
http://www.youtub
e.com/watch?v=Q
uKRgjm0KJU
Quiz on the Scientific Method
Match the description on the left with the section on the right
11. Contains tables or organized data
A. Procedure
12. This is a predicted outcome and variables are listed.
B. Problem
13. Organized set of steps to investigate the problem and
collect measureable data.
C. Analysis
14. Why you are doing the investigation.
D. Conclusion
15. Report if your data was evidence to support your
predicted outcome.
E. Observations
16. This contains calculations, graphs and/or questions
about gathered data.
AB. Hypothesis
Test your knowledge by
Visiting:
Pass test + screen shot
gmailed by Fri:
-teacher getting eaten by
sharks
-include login name from
tab with your account
http://www.s
olpass.org/5s
/Games/Scie
ntificMethod
Plank.html
The Scientific
Method
http://www.youtube.com/
watch?v=DWa1af7lXes
What language is this?
What is pH?
 Remember
that
alkaline means
BASIC
 As the pH value
increases by 1,
the substance=
 10 times less
acidic or
 10 times more
basic
pH scale:
alkaline = basic
What is an
indicator?
Now let’s move on to
chemistry…
1
2
3
1. Mark 3 test tubes
1, 2, 3 with a
sharpie.
2. Collect 2”
samples in each
of your test
tubes from each
of 3 beakers
labeled: 1,2,3.
•
You will be provided:
•
3 test tubes ,
an indicator that turns
magenta in the
presence of a base,
• a dropper and
• a beaker to put the
test tubes in…
3. Add 2 drops of the
indicator
(phenolphthalein) to
each of the test tubes
and record results in
table #1.
You will have to have an
approved:
in your journal using all
steps of the scientific
method.
use your
dropper to collect
samples from any of
the main 3 beakers!!!
How do we
determine all 3 if
only one turns
?
Bring me your journal for a stamp with:
 a title,
 a purpose,
 NO hypothesis today,
 a procedure and
 an observation section with a data
table before you collect anything
 Before
we move on you will need to
analyze the data to determine which
solution is the acid, the base and the
neutral one.
 Write a $1.oo summary for the last part
of this lab. It is not necessary to have
a separate conclusion for this one.
We just used
chemical
indicators…
What are some other
indicators…in nature?
Let’s try red
cabbage juice!
Yum! Yum!
This time
you can
put the
cabbage
juice in
the test
tube
and add
a small
amount
of 1,2, &3
to each
tube
What color does red
cabbage juice turn
in the presence of
each of these?
Draw
a line under your $1.oo
summary from part A and write
part B under the line.
Then make a data table for this
collection before you begin
2 3 4 5 6 7 8 9 10
Here are
some results:
What is the
exact pH of your
acid and your
base?
pH in farming:
 Next
week we’ll talk about the pH in
farming and how/why that is important.
HW for SG:
 Personal



Activities related to AG
We will watch an informational video-clip
You will design a poster with 3 personal
activities you do daily that identify you &
relate to Ag.
Pictures strongly encouraged so that they
aren’t boring!
 You
will share this in SG next week.
 There will be a quiz at the end matching
each of you with your ‘traits.
TMI is not necessary:


Playground Bloopers: (7min)
http://www.youtube.com/
watch?v=4i82kG7wFik