Well hi there everybody this is Mr.
Wells. Today we're going to be doing our
very first lab in Earth Science which is
our Practice Lab: Introduction to Data
Collection so today we're not going to be
doing a whole lot of actual Earth
science really what we're gonna be doing
is getting used to some of the devices
and the equipment that we use in this
class
for our future labs. So this should be a
pretty simple lab where we're just gonna
be getting used to the basics of
what it takes to do in our science lab
so the first thing that I want you to do
is to go into Schoology, go into our Earth
Science Schoology page and under Topic 1
Labs it should be a folder for Topic 1
Labs let's go to our Practice Lab
Introduction so this is just a raw PDF
of our lab worksheet. This is what
we're gonna fill out and turn in to
complete the lab. So the first thing to
do because you can't write on it like
this is to go to your upload (top right) and we're
gonna upload this to Notability
all right so once you get it into
Notability we're gonna be ready to do
the main setup for this lab. So this lab
doesn't have a whole lot of equipment
that we need to use I grabbed two 400
milliliter beakers you can use any size
beaker for this lab but just make sure
they're two of the same kind. I have a
temperature probe that we use for our
LabQuest devices can be found in the
front of the room by the lab materials. I
have our LabQuest which we're gonna be
using for most labs in this class; we're
going to talk about the labquest in a
little bit. And then our iPad you're
gonna need your iPad for the lab
worksheet to complete the lab worksheet.
So at this point we're gonna talk about
the LabQuest device before we actually
get started on the lab. These labquest
devices are actually super handy and
they can do a lot of things today we're
going to be measuring temperature with
the LabQuest device. Just a couple basics
about these devices: one of the most
important things if you go into the
connections button right here you need
to be on 192 Secure, 192 Secure for our
network if we do that our Labquest
Device is actually going to be able to
speak with our iPad which is really
important because we're actually going to be
doing our graphing on the iPad our final
graphs are gonna be done on the iPad. The
home screen here takes you home. A couple
more things I was noticing that when I
was tapping here
the calibration wasn't working super
great so what I'm gonna do is hold the
home button for about five seconds and
that's going to prompt me to calibrate
the screen so I'm just gonna touch my
stylus on these pluses (indicated signs),
and it should be a lot better calibrated
so it should be much more fine-tuned to
my stylist here one of the only other
things that we really need to know how
to do on here is to shut off the
LabQuest device when we're done so if I
go into system there's a couple menu
options that we don't really use unless
you want to change the time and date it
is actually not 9:45 right now so that's
something I'll have to do in a little
bit but that's not important the
important thing on this screen is how to
shut down so you can shut down here: so
home, system, and shut down when you want
to shut down the LabQuest device
and they should be shut down at the end
of labs.
The other important thing that we're
gonna be doing especially for today is
the LabQuest app we'll come back to this
but this is our LabQuest app, this is
where all of our sensors are gonna do
readings and everything for the LabQuests themselves
The other thing we're
gonna need is the Graphical Analysis app
for the iPad. We're going to get that in
iTunesU actually so if I go to iTunesU
I already have it up most of you are
probably here in the library this is
where we find the video but if you go
into materials up here go down to apps
there's a few apps that we're gonna be
using. Today download Vernier Graphical
Analysis. FLIR One we'll use in the
future you can download that now if you
want but we're not going to be using
that today that'll be used first in Lab
2 actually.
Before we actually start the lab - we
can actually answer most of the
questions in this first page actually
looks like we can answer all of them the
first and most important thing to do
when you start a lab is to write your
name (writes Mr. Wells) I don't have any partners
I'm working here by myself but make sure
to put your name and also your partner's
names everyone is gonna have to fill out
a lab sheet. Everything in here can be
done using the pencil so you can pencil
in all your answers here or you can type
them if you want them to be neater if
that's easier for you, I'll except either.
So we can actually answer the
first few questions here.
What networks should the LabQuest 2
device be on? We talked about that that
should be on 192 Secure. How do you fix
the LabQuest 2 screen if it's not
responding touch very well well? That
happened to us you actually just have to
recalibrate the screen so you can either
hold the home button on the LabQuest for
5 seconds, or you can also do that
through the system settings, we did that
earlier in the video. How do you turn
the LabQuest 2 device off? We did that
too - you go to the home screen system and
then power down. And then when should you
turn the LabQuest 2 device off? When
you're done with the lab or when you're
done using the LabQuest 2 device. And then what
after you need to view the lab data?
That's the Vernier Graphical Analysis so
once you have that downloaded from the
iTunesU store, so that's your Graphical
Analysis app right here. And then who
should do the write-up? This is really
important, everyone should do the write-up.
Everyone in your lab group should be
doing their own write-up. You shouldn't
be sharing one lab PDF between the two or three of you.
Alright so the first
thing you should do when you actually
start the lab procedure is to fill up
two beakers of water. So the first beaker
right here I filled up with cold
ice water. Ice you can actually get
at this cooler which should always be in
the front of the room from now on full
of ice. And then this beaker right here
is filled up with hot water. So you
should have one beaker filled with hot
water, one beaker filled with cold water.
All right so on the second page of our
lab worksheet the learning target
purpose or objective of part one of this
lab is going to be to learn how to use
the time-based mode on our LabQuest 2
device so if I cancel out of this, this
is on our LabQuest device app so to go
back to their home LabQuest app it's
important before you start doing
anything further to hook up your
temperature probe. So hook up your
temperature probe into channel one
(shows temperature probe) leave it to the side
for now once it's hooked up and once
you're seeing a reading I'm seeing 23.3 degrees Celsius which looks
right. I'm gonna go to time-based when I
mean time-based there's also other
settings in here but keep it on
time-based. Our rate here is gonna be
0.5 samples per second and
I'll have our duration be let's just say
a minute so 60 seconds.
Before we start taking our measurements
we want to get to into our Graphical
Analysis app and we want our LabQuest 2
device to actually talk to our Graphical
Analysis app so you're gonna be
seeing a live readout of your
graph on the iPad versus here you'll see
it on both, but we want it on your iPad.
So we're gonna go to that Graphical
Analysis app that we downloaded.
Graphical Analysis you can find it in iTunesU under the apps in our course page
we're gonna do:new experiment when you
tried to do a new experiment it's going
to ask you to select a source. Do "data
sharing" and then what we're actually
going to do is go into the connections
really quick in here (LabQuest device) you see an IP
address we're actually just going to
take a picture of the QR code for that
so go into a camera
and actually take a picture of this
QR-code it should go pretty fast and
then you'll have your IP address here.
Just hit the connect button and it
should connect. So now in theory we're
gonna be getting a live reading based
off of what we measure on here on our
iPad right here.
All right so what we want to do now is put the temperature probe in our ice water here.
The temperatures gonna drop pretty rapidly
make sure as soon as we do this you're
gonna want to hit play. So for the first
10 seconds the time is actually recorded
right down here for the first 10 seconds
keep it in this cold water and then at
10 seconds move it over into the warm
water. And so we'll just let this run for
the full 60 seconds it's gonna produce a
nice graph if you look if this is going
right for you it should also be graphing
right now on to your Graphical Analysis.
Please let me know if it's not
communicating with your iPad right now
you should be seeing two of the same
graph running.
All right so once your 60 seconds are up
you should be getting a graph that looks
kind of like this. A couple things you
can do with this, if you're doing
multiple runs you can actually change
the runs by clicking on the left column
over here. It's possible to manipulate
this graph pretty much any way you want
right now we're gonna look at a couple
different ways to record data using the
Graphical Analysis app so probably the
best way here to find data on a short
time scale like this this is going to be
method 1 on your second page, is to
actually just manually find the
temperature based on a certain time
using manual point finding which you do
very scientifically by pointing your
finger at different parts of the graph
so it'll tell you a temperature and at
what time that happened. The first
question on page 2 the first method is
to find the temperature this way the
highest temperature this way so using
eyeball method I'd say that's probably
my highest point
looks like 37.3 Celsius at 36 seconds so it
happened 36 seconds into the experiment.
I'll go back in here and write in 37.3
degrees and it happened at 36 seconds.
I'm gonna ask you to take a screenshot
of each of these graphs. So, the first one
I'll take a screenshot using
the power down and the home button simultaneously,
and then in Notability you can actually
just go in add a photo
all photos, this one right here.
And you can shrink that down put it
right there so that's what you do for
method one. For method two here we're
gonna find the same data but using a
different method
so I'm actually in the table here the
way to get to that if we go back to our
graph is through this square right here
there's lots of different options for
viewing our data. We're going to just be
using table right now it's a table I'm
gonna look on here and I believe that at
36 seconds is actually my highest
temperature. That may or may not be the
case for you based on kind of your
eyeball test I would look through these
numbers but find your highest
temperature, mine still looks like it is
37.3 just barely so
my answer is gonna be the same again.
That's not gonna be the case for
everybody 37.3 at
thirty six seconds so same answers we're
gonna go in here take a screenshot of
this table.
You can shrink that down again so that's
screenshot number two for the final
section of part one. The final method
method number three we're gonna go back
into our Graphical Analysis, go back to
your "one graph" and actually if you click
and drag, you can click and drag through
the whole remainder of the graph. You can
actually go down to here (bottom left) this button
down here and "view statistics" and if you
do that you're gonna see a min and max.
So again for me um just because I had
that really high peak, this is gonna be
the same temperature, but this gives you
a statistical analysis. So as you can see
in my minimum temperature of 15.8 degrees,
my maximum temperature was 37.3 degrees.
Just another way to do a quick
analysis on the LabQuest. It might take a
few seconds to get that to stretch out. 
But once you do go down to here
(statistics) and you can find the maximum
value that way and while that's
highlighted with the "statistics" portion
take your final screenshot. And make sure
to write your numbers down again in this
worksheet right here and insert your
screenshot for these part one questions.
I'm gonna let you do these on your own
so for the majority of these labs I'm
gonna walk you through the entire
procedure maybe with a little bit less
hand-holding than we had in this one and
then I'm gonna leave you on your own to
answer the questions. Please make sure to
come up to me I'll be going around the
classroom but if you have any questions
on these questions come and ask.
We're gonna go to part two Events with Entry
which is pretty similar to what
we're gonna be or what we were doing in
part one but with a different mode. We're
not going to be using that time-based
mode anymore we're gonna be using events
with entry. All right, before we move on
to part two we're gonna go into file - new
if yours (LabQuest) asked to discard just discard
your data.
It should be saved now on to your
Graphical Analysis on your iPad for part
two. The purpose is going to be to do a
temperature-based experiment but we're
going to be using events with entry. The
number of columns is going to be the
number of people you have in your groups
so we have max three people per group in
this class so you can do however many
you want. If you're working by yourself,
do two columns we're going to be
measuring the temperature of our hand, so
if you're by yourself you can
do the left and right hand basically. So
I'm going to do two events because I'm
working by myself here.
I'll say right (types "right")
and left (types "left").
Our units are gonna be degrees Celsius
so I'll say C (types "C"for degrees Celsius).
All right once we have our event name
set up we're in here we're gonna hit
play. So this is gonna give you a live
temperature readout it's not gonna be
over time and so my first value was my
right hand, thats down here. So I'm gonna
grab this temperature probe in my right
hand and you can see on here (LabQuest) the
temperature is rising, let it rise for a
little bit, rise or fall depending on the
temperature of your hand. We're gonna
want to let it stabilize so I'm gonna
let it sit here for a little bit and
then we'll come back. It looks like now
my temperature has stabilized so what
I'm gonna do now is I'm going to want to
keep that data point
so keep (hits "keep" on LabQuest) enter your value - the value is
just gonna be "1".
All right so that should save, now your
first events with entry point. I'm gonna
move the temperature probe into my left
hand hold there we'll let that stabilize
for a little bit and then we'll come
back. Alright looks like my left hand
temperature is stabilized so I'm just
going to again hit keep (hits "keep on LabQuest) and we'll label
this value as "2". All right once I have my
two points that I'm happy with here I'll
stop the experiment from running so it
shouldn't be giving a live readout
anymore. I'm gonna go into back on my
Graphical Analysis app. I'm gonna go to
data sharing, again you don't always have
to do this some of you if some of you
might not have to do this stuff if you
hit new experiment it might
automatically sync. Looks like mine
disconnected from the internet so what
I'm gonna do really quick is go back
into my connections look at this QR code
again I'll go into camera and it
automatically synced as soon as I put it
over because it probably remembers it
from just a few minutes ago when I was
running this. So there's our points on
here I'm gonna have you going to table
view again so if you go into here table
view our point right here "1" is our
right hand "2" is going to be our left
hand so these are the temperatures of
your right and then your left or each
group member just one, two, three in order.
Alright now when you're all done with
that data table you're gonna take
another screenshot put it into your Park
to Events with Entry there's only one
screenshot for this part then I'm gonna
have you condense that data into a table
down here so rewrite your temperatures
in here, take a group average if you
don't have a third group member just
cross that out. And then answer a couple
questions. I'll let you answer those when
you're all done you can take the lab up
to me to get it checked off before doing
that make sure that all of your
materials are put away, your LabQuest is
turned off and put back on the charger,
temperature probe put back on the
counter or the bin that you found it,
and clean out your glassware. Thanks a
lot this was lab zero or our practice
lab.
