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