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PENNY LAB A Guide to Completing Your Scientific Method Booklet! PowerPoint PPT Presentation


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PENNY LAB A Guide to Completing Your Scientific Method Booklet!. Introduction: The first set of slides will say what each page of the booklet needs;. The second set of slides will try to give examples . --They will have different backgrounds. Pg 2 = Prblm Stmnt, Rsrch, Hypoth.

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PENNY LAB A Guide to Completing Your Scientific Method Booklet!

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Penny lab a guide to completing your scientific method booklet

PENNY LAB

A Guide to Completing Your Scientific Method Booklet!


Penny lab a guide to completing your scientific method booklet

Introduction:

The first set of slides will say what each page of the booklet needs;

The second set of slides will try to give examples.

--They will have different backgrounds.


Penny lab a guide to completing your scientific method booklet

Pg 2 = Prblm Stmnt,Rsrch, Hypoth

Pg 3 = Proce- dure

Cover

Pg 6 & 7 = Conclusion

Pg 5 = Analysis

Back Cover, pg 8 = “extra space”

Pg 4 = Data


Penny lab a guide to completing your scientific method booklet

PENNY LAB – Title Page needs…

Title– that relates to the lab

Your Name

Partner’s Name

Section

Due Date(to be determined)


Penny lab a guide to completing your scientific method booklet

PENNY LAB – Page 2

Problem Statement = what you’re trying to figure out

RESEARCH = background info to understand the lab

At least 3 facts w/citations

Citation needs name of article and web link


Penny lab a guide to completing your scientific method booklet

PENNY LAB – Page 2 con’t

HYPOTHESIS =

independent variable

manipulated variable

If

(=what’s changed)

then

dependent variable

responding variable

(=what’s measured)

because(briefly explain why)

If [I do this], then[this will happen]because[of this reasoning].


Penny lab a guide to completing your scientific method booklet

PENNY LAB – Page 3

PROCEDURE always needs…

Safety what do we need to be careful with/about?

Operational Definition how will the dependent variable be measured?

Set-up Sketch toshow how equipment was set up for the lab

Clean up what do you have to do to clean up?


Penny lab a guide to completing your scientific method booklet

PENNY LAB – Page 4

DATA & Collaboration

Data Tables one w/your data; one w/collaboration data from 3 other groups

Observations write down at least 2 things you noticed during the experiment

Sketch/es these can support your observations; 1 picture can be worth a 1000 words


Penny lab a guide to completing your scientific method booklet

PENNY LAB – Page 5

ANALYSIS is all about…

Graphs made using your data and collaboration data

Inferences write down what you can figure out from your graphs

Collaboration ALWAYS include / write about your collaboration data as well as your own data!!


Penny lab a guide to completing your scientific method booklet

PENNY LAB – Pages 6 & 7

CONCLUSION…needs 2 pages!

Restate your problem question

Variables list what your variables and operational definition were

Explain Here’s where you show if your data proves or disproves your hypothesis; this is always worth a lot of points because this is where you show your THINKING and that you understood what you did 


Penny lab a guide to completing your scientific method booklet

PENNY LAB – Pages 6 & 7

CONCLUSION…continued

Sources of Error* what went wrong? What could you have done better or differently?

What’s Next?* What are you curious about now because of this experiment?

New & Cool* What are 2 new things you learned from this experiment? What are 2 cool things you did or learned from this experiment?

* at least 2!


Penny lab a guide to completing your scientific method booklet

PENNY LAB – Page 8

The Back Cover

You can use this if you need more room for any of the other pages.

– OR – it can be the back cover!Have some fun and be creative, but never leave it blank!!


Penny lab a guide to completing your scientific method booklet

Next, are the sample pages.

Remember, you must DEFINE/explain the step, and then DO the step!


Penny lab a guide to completing your scientific method booklet

Title:

Penny Lab

Mrs. Spiegel

Partner: Harvey the Hawk

Section 7-A

Due: Sept. 31, 2010


Penny lab a guide to completing your scientific method booklet

Research = background info

Copper has a hardness of 3.2-3.5; zinc has a hardness of 2.5; steel is 7

Source: Mohs scale of mineral hardness; http://en.wikipedia.org/wiki/Mohs_scale_of_mineral_hardness

From 1793 – 1837, the penny was pure copper. For the next 20 years, the penny was bronze, which is copper, tin and zinc. From 1857 – 1863 the cent looked whitish because it was made of copper with 12% nickel. For the next 98 years (1864-1962!) the penny was again bronze, except for 1943. Because of the need for copper during WW II, the cent was zinc-coated steel in 1943. In 1962 the tin was removed from pennies, making them 95% copper and 5% zinc. In 1982 this was changed to 97.5% zinc and 2.5% copper

Source: The Composition of the Cent, http://www.usmint.gov/about_the_mint/fun_facts/?flash=yes&action=fun_facts2


Penny lab a guide to completing your scientific method booklet

Problem Statement = what I’m trying to figure out = How many drops fit on a penny?

Hypothesis (format)

If(independent/manipulated variable)

then(dependent/responding variable)

because(briefly explain why)

My Hypothesis =

If pennies made of different metals have water dropped on them, thenharder pennies will hold less dropsbecausethe harder metals will make the water splash more.


Penny lab a guide to completing your scientific method booklet

Procedure

always has these 4 parts

Safety -- be careful about….

-- wear goggles

Operational Definition how the dependent variable is measured

number of drops will be one less than overflow

Set-up Sketch:

How the equipment was used

Clean up what needs to be done at the end of the lab Wipe down table

Return flasks & other equipment to back counter

Throw used paper towels into trash.


Penny lab a guide to completing your scientific method booklet

Data & Collaboration

Includes data tables, observations & sketches

Observations:

My Group’s Data

I didn’t think water would pile up and make such a big mound on a penny!

The 3 pennies really looked different from each other

Collaboration Data

1943 1963 1984

(OK, so I “cheated” b/c this is PowerPoint and I used Google to find pictures instead of making sketches… )


Penny lab a guide to completing your scientific method booklet

Collaboration Graph

Analysis

= graphs & inferences

My Group’s Graph

Inferences:

Both graphs show that the 1943 penny held the most drops, the 1984 held the second highest number of drops and the 1963 penny held the least amount of drops.

It can be inferred that the 1943 penny holds more water than the 1963 or 1984 pennies.


Penny lab a guide to completing your scientific method booklet

Conclusion – has many parts

Restate problem question

How many drops can fit on a penny?

Variables restate/list what variables and operational definition were

Independent = year of penny

Dependent = number of drops

Op Defn = one drop before overflow


Penny lab a guide to completing your scientific method booklet

Conclusion – con’t 1

Explain = show how data proves or disproves hypothesis

All the graphs show that the 1943 penny held the most drops. This data does not support the hypothesis because the 1943 is the hardest penny. It is steel. The research said zinc is a softer metal than copper and copper is softer than steel. I now understand that the “softness” of a metal does not seem to “cushion” the drops. Instead, all the data shows that the harder pennies held more drops.


Penny lab a guide to completing your scientific method booklet

Conclusion – con’t 2

Sources of Error what went wrong? What could you have done better or differently?

We had a hard time keeping the pipette at 2 cm.

Sometimes we jiggled the paper towel and the water spilled off the penny.

What’s Next? What are you curious about now because of this experiment?

What would it be like to compare silver dollars with nickels?

Would the tails sides have different results?


Penny lab a guide to completing your scientific method booklet

Conclusion – con’t 3

New & Cool at least 2 new things & 2 cool things you did or learned from this experiment

I learned that there’s a “method” to the scientific method and if you follow it, it’s pretty easy!

I learned that different metals affect how many drops a penny can hold.

I never knew pennies were bronze for almost 100 years.

I’m glad we got to decide which variable we wanted to use in our experiment.


Penny lab a guide to completing your scientific method booklet

Back Cover – can be used as extra room for any step, or as a back cover! Never leave it empty!

Science

ROCKS!


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