zernicke, megan zahuron es, samantha yolitz, derek yang, pa houa wulk, nathan rieth, kyle rodman,...
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Zernicke, Megan
Zahurones,
Samantha
Yolitz, Derek
Yang, Pa Houa
Wulk, Nathan
Rieth, Kyle
Rodman, Kaitlyn
Rusch, Cassandra
Schade, Samanth
Stark, Brian
Staszak, Tiffany
Osheim, Rhonda
Pagel, Ashley
Pazio, Antonio
Penn, Kailey
Pophal, Brandon
Krohn, Klayton
Lee, Jeff Lee, Nhia Lor, Frank Maaser, Matthew
Hillery, Austin P
Hirst, Justin
Hitz, Joseph L
Hoeft, Spencer
Hoff, Raelena C
Adams, Alycia A
Ademi, Shainna
M
Andrade, Savannah
M
Bandura, Samantha
Burazin, Allison G
Butts, Vernon T
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, Julianne
Raymond, Mariah
Stainbrook, Jarad
Marr, Kiana
Miller, Lizzy
Mills, Libby
Nehrbass, Terrance
O'Malley, Kelsey
Ohde, Erica
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
http://www.dailymotion.com/video/xrtva3_i-m-farming-and-i-grow-it_fun
Agri-science LG1
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!
Different resources use different modelsWe will use the following for your journals…
We call this “observations”
The Scientific Method
For this class the Scientific Method involves 6 steps: (Write these down on the introduction notesheet.)
Problem Hypothesis Procedure ObservationsAnalysisConclusion
You will need a lab journal by Monday.
It should NOT be multi-subject!
Why projects fail…http://www.youtube.com/watch?v=52yjQEEdnso
The Scientific Method
Why?- You observe something in the
material world, using your senses.
Ah…look at this path…It changes
direction.
Questions arise from a good observation…This leads to the problem.
The Scientific Method
I. Problem- • You ask a question about
what you observe. • State the problem/
question/ purpose to do an investigation between 2
variables.
The Scientific Method
II. Hypothesis- • Prediction of what the
answer to question might be.
We use IF, THEN,BECAU
SE formatIf restates the problem,
Then includes your projected outcome,
Because highlights background knowledge
Example: If a mouse is dropped from increasing heights
Then bounce heights will also increase
Because …
What are the 2 variables?You will always identify them under the Hypothesis for this class
• the height • the bounce
Which one can you “set” for the experiment?This is known as the “independent” variable because you “set” it.
• the height
Which one “depends” on what you “set”?This is known as the “dependent” variable.
• the bounce
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!
On a more positive note…
The Scientific Method
III. Procedure- • Method to test whether hypothesis is supported.
• Steps to measure and record data comparing independent
and dependent variables.
The Scientific Method
IV. Observations- • Record of results in data tables
or other organized display.• 3 or more independent
variables “tested” with 3 trials for “good science”
West science does not title a table like this one.
Format to title data tables at West:
X variable vs. Y variable (alphabetical)
What would this be titled?
2011 Caring Dairy Farm Performance Indicator for Colored Sections in the US
Or simply: Indicator versus Colored Sections
The Scientific Method
V. Analysis- • 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 GraphsCompares multiple objects
Pie GraphsCompares parts of a whole population
What could
this be for?
Line GraphsShows relationship between variables
Notice the
‘best fit line’
Best fit lineThis is a smooth
or straight line that is an
average of all data points.
• It has many points above the line as below the line• It is not dot-to-
dot• your data is not
perfect when collected in a lab
Take out the mini-scantron
for a quiz
1. Identify each type of graph: A. bar B. line C. pie
D. direct E.
inverse
2. Identify the relationship as:
3. Write down: a. independent and b. dependent variables on the back
(this is written at the bottom of your notesheet)
Let’s do this together-
1. A
3. On the back of the mini-scantron write the #1
A.Independent = the month and/or the year since 3 sets of data are present
B.Dependent = #of licensed Wisconsin Dairy Farmers
2. E
1.
2.
3. (Notice the best fit line in black)
4.P
ou
nd
s
Year
5.
6. Use the tractor data
7. Use the horse data
8.
9.
10.
3 different line graph relationships:
DIRECT relationship-one increases the other increases
INVERSE relationship- one increases the other decreases
CONSTANT relationship – no change
The Scientific Method
VI. State Conclusion- • State whether your
prediction was supported with evidence from data
analysis • Explain results extending to
everyday life.
Scientific Method Songhttp://www.youtube.com/watch?v=Z7P9TKkAnhA
http://www.youtube.com/watch?v=QuKRgjm0KJU
Quiz on the Scientific MethodMatch 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
The Scientific Method
http://www.solpass.org/5s/Games/ScientificMethodPlank.html
Test your knowledge byVisiting: Walk The Plank Game.
Pass test + screen shot gmailed by Fri: -teacher getting eaten by sharks-include login name from tab with your account
What is pH?
http://www.youtube.com/watch?v=DWa1af7lXesWhat language is this?
pH scale:Remember that
alkaline means BASIC
As the pH value increases by 1, the substance=
10 times less acidic or
10 times more basicalkaline = basic
What is an indicator?
Now let’s move on to chemistry…
I. Problem:Determine which of 3 clear liquids is an
acid, which is a base and which is
neutral.
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…
1 32
III. Procedure:
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.
This is where you will develop
LB1: Finding pH of 3 Unknown Liquids
You will have to have an approved:
PROCEDURE & DATA TABLE
in your journal using all steps of the scientific
method.
III. Procedure:
3. Add 2 drops of the indicator (phenolphthalein) to each of the test tubes and record results in table #1.
The secret is that you need your
dropper to move drops from one of these tubes to the
others.
How do we determine all 3 if
only one turns magenta?
DON’T use your dropper to collect samples from any of the main 3 beakers!!!
Let’s take a break &
experimentBring 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
Let’s take a break &
experimentBefore 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!
Now that you know which solution is acidic, alkaline and neutral …
What color does red cabbage juice turn in the presence of each of these?
1 2 3
This time you can put the cabbage juice in the test tube first and add a small amount of 1,2, &3 to each tube next
Let’s take a break &
experimentDraw 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
Here are some results:
What is the exact pH of your acid and your base?
2 3 4 5 6 7 8 9 10
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