SciGirls 106: Blowin’ in the Wind

Whoa, Jake, this homework
is really scary. [with dismay] Oh. My battery died! Again! I say it is time to go green. I look good in green. Wind power! (SciGirl)
We really wanted to build our own mini wind farm
and power something. We’re halfway! We were just really awestruck at the size
of these huge wind turbines. Wow! It’s natural and we’re not taking away
anything from the earth. (Izzie)
Next on Scigirls. ♪ Uh-huh. ♪ Funding for “SciGirls”
is provided by the following… The National
Science Foundation– supporting education
and research across all fields
of science and engineering. The National Science
Foundation– where discoveries begin! (woman) Math and science are
everywhere. They’re the building blocks
of tomorrow. That’s why Exxon Mobile
sponsors programs to get kids excited about math, science,
engineering, and technology so one day they may become
the scientists of the future. (girls)
♪ S-C-I-G-I-R-L-S ♪ (Izzie)
♪ We need you ♪ (girls)
♪ S-C-I-G-I-R-L-S ♪ (Izzie)
♪ Come on! ♪ ♪ When I need help,
and I’ve got a question ♪ ♪ there’s a place
I go for inspiration ♪ ♪ Gotta get to the Web, check
the girls’ investigation ♪ ♪ What girls? ♪ (Izzie)
♪ SciGirls! ♪ Whoo! (girls)
♪ S-C-I-G-I-R-L-S ♪ (Izzie)
♪ I need you! ♪ (girls)
♪ S-C-I-G-I-R-L-S ♪ (Izzie)
♪ Come on! ♪ (girls)
♪ You’ve gotta log on, post, ♪ ♪ upload, pitch in! Yeah! ♪ ♪ Wanna get inside a world
that’s fascinating? ♪ ♪ The time is right ’cause
SciGirls are waiting, ♪ (girls)
♪ S-C-I-G-I-R-L-S ♪ (Izzie)
♪ We need you! ♪ (girls)
♪ S-C-I-G-I-R-L-S ♪ (Izzie)
♪ SciGirls!! ♪ Whoa, Jake, this homework on our depletion of earth’s
resources is just really scary. I say it is time to go green. I look good in green! Jake, hel-lo-o! Do you like,
even listen to me at all? Sure, mostly. It’s just I’m focusing
on how many coins I can catch off my elbow. Goin’ for the world record,
and you’re my witness. So Iz, keep your eyes glued! Okay, but… Oh! My battery died! Again! Darn. Hm, maybe I can come up with a
greener way to power this thing. Okay, plugging in one more time. Ha ha! I did it! [laughs] Just need one witness for it
to count, and you saw it! World record,
here I come! Ah, sorry Jake, I didn’t see it. I gotta go fix my computer.
Bye! (Jake) Wait! Hm, I’ll need
some help if I’m to figure out another way
to power this thing. ♪♪ [Izzie grunts & groans] I need some SciGirl brainpower
right away. Let’s see now. Ah-ha! Whoa! Wind power? I think these girls can help me. (SciGirl) It’s windy! Nikki and Vicki and Aditi
and I all met at a science, technology, and engineering
summer camp for girls. We learned about wind energy, lots of science stuff.
It was really fun! The girls are
really high energy, and they’re really nice. They’re really awesome
to work with. The thing that fascinates me
the most about wind is that it’s completely natural, and we’re not taking away
anything from the Earth. I like wind energy because it’s
not something that you would expect
to be used for power, but when you see it in action you’re kind of like,
that was genius! So all 4 of us are pretty
excited about wind energy. Our mission for this project
was to have a wider understanding of wind energy
because we really wanted to build our own mini wind farm
and power something. It doesn’t have to be
this great, huge idea. It can be just something small,
and it’d still be as cool. We’re going to set up
our own mini wind farm, and I can’t wait
to see what we power! Whoo-hoo, you guys,
I’m so excited! It’s gonna be so much fun! We heard about
this sculpture at a museum, and it was called
the Floating Gardens, and it was powered by wind,
so it was really cool. Whoa! Wow! Cool!
Is that real grass? (Izzie)
Wow, look at that! (SciGirls) That’s cool. So the wind turbines
harbor the wind, then that makes the battery, it gives energy to the battery,
which powers the pump, which powers the irrigation
system to make the grass grow. I just like
how you can see everything because it makes a whole lot
more sense because you just see that, and you’re
like, what is this doing here? When you see the battery,
it’s like, oh! It’s because it’s
like scientific or artistic at the same time,
so it’s like a twofer. You can see everything next to exhibit because
then you can make sense of it. It was this masterpiece. It was really cool to see how
we could use natural resources to make something so beautiful. So it looks like
there’s a pattern going around the balloon. It’s like a prism inside. It looks like
the wind is going through. It’s almost like he’s showing where the wind’s
going and how it works. Maybe the artist wants us to think of extending this
to the world. Yeah, one day the city,
the next day the world! Tah, tah, tah. After seeing the exhibit,
all 4 of us were really inspired to go out and build a mini wind
farm, so we went to KidWind because we knew that they had
those mini turbines that we could use
that we also used at camp. So we had some experience
with using them. The warehouse was this big room
that they had all of their stuff that they made
in there, and they had tools. They had the gears
for the turbine in one box, then the pump for
if you wanted to use water. They had the base and the tubes and little plastic cardboard
that you can use. Blades. Wind turbines! This is so cool. The base is
connected to the shaft, the shaft holds the cell up, the cell is where
the generator is, and that’s what the blades turn to power
the generator to make energy. We have our wires for
transferring energy. To see how many volts we can
make with the generator. You guys, why don’t we start
working on the blade design? We used
a rectangular plastic cardboard. We are going to attach the blades to the wooden dowels
using hot glue. Ah, to work with the hot
glue gun, it’s really hot and you have to be
very careful with it because otherwise you’ll
burn yourself, as I found out. We’re going to try to see
how many volts we can get with just a plain rectangle.
Next blade on! Why don’t we use it
without an angle first just to see if we need an angle
to begin with? Wiring our very first turbine
to the voltmeter just kind of gave us
a little bit of familiarity with the equipment
that we were using. Fingers crossed.
Let’s go! [whirring of the fan] Oh-oh, it doesn’t
seem to be working. (Izzie) Yeah, “Oh oh.” SciGirls,
you better reevaluate. (SciGirls)
Maybe we need an angle. Maybe a little tilt
to the right? There we go! ♪
♪ It’s working.
It’s working! I think we should design a vein
to keep it straight. What if we did an L-type thing? There we go! There ya go. If we have it at
a right angle it will be perpendicular to the pole,
and so then it will be able to steady the movement
of this more. Let’s test it. Perfecto!
Looks good. First we started out
with a 40 centimeter rectangle, but it didn’t work very well. So we should probably
downsize it. Yeah, definitely. A too short blade
wouldn’t be as efficient. Yeah, and too long
will be too heavy. So medium sized blades
would be the best option. We shortened it a little. All right, so the blades are now
25 centimeters long, people. Oh my gosh! Whoa! (Izzie)
And there we go! That’s our fastest yet.
Yeah. Yeah. And it’s the first time
doing the shorter blades. Yeah, this is
a lot better than it was. Wow! Yeah, medium blades
were a great idea. High-5s all around. Yeah, yeah! Yeah. Whoo-hoo. The reading is
about one volt. So if we put it
at more of a steep angle, then maybe if we do one trial
if we have it really steep, and the next one
we have it almost flat– see the differences? Sure, let’s go for it. I mean, if it fails, that’s what
science is– trial and error. We have
a protractor. 50. It’s not
spinning that fast. I know. So let’s try
and shallow it out a little. 30. Whoa!
Try 10? Yeah. That one’s
going really fast. Wow.
Wow, really fast. The reading is 1.7 volts. Oh my gosh! So when we make our turbines,
we should make sure that all the blades are exactly
10 degrees for the maximum effect. We decided
we’d change the shape, so we cut it down a bit,
made it more aerodynamic. The actual blade we came up
with, it curved at the end, like what you do
to spread icing on a cake. Our design is so that it curves
up to a point at the top and eventually gets narrower
so that we can get less drag and move faster
for more energy and volts. Why don’t
we curve it? Yeah, let’s
try curving this. Because airplane wings
are curved, and they seem
to reduce the drag. Curve it around our hand. That seems to be
going really fast now. All right! So the reading
is 3.7 volts. (all) Wow! So in the end
the blade
was efficient, it was well designed,
it was aerodynamic, so it had everything tied in together
to make the perfect blade. So this design is officially the design that we are
going to use on our 20 turbines. Hey guys, let’s just start
by wiring 2 together. Let’s go! Awesome. Awesome. We doubled the amount of
turbines, we doubled the fans, so now we’re going
to get double the voltage. The voltage reading is 7.1. We thought it was going to be
around 7.57, and it was 7.1. And it must have lost some
energy when going through, so it’s not going to be perfect. We put the mini turbines,
one in front of the other, and once the wind
started going from the fans, the first turbine kind of
obstructed the wind flow, and then the second one
didn’t work as well. The voltage reading is
5.7 volts, so not quite 7. Yeah.
So it is going slower. We decided that we were going to
have a staggered placement… You’d have another one
right here. Yeah. Oh yeah. Then we could catch
as much wind as we could, then minimize the space
we had to use. We got the idea we could power
a water pump with it. Why don’t we power
like, a birdbath when we set up
our wind farm? Let’s do it.
That’d be so cool! Yes, wind power! Making little fountains
in the birdbath, there was no debate,
we just agreed on a birdbath. So it’s really cool how we found
our blade design in there and the voltage and everything. We needed to learn
more about wind energy. We realized we probably need
some help, and we probably need to see an actual wind farm
so we’re not doing this wrong. We should really go see
real wind turbines to see how we should
set up ours. Whoo!
Let’s go! ♪
♪ Hi, I’m Hannah.
(Izzie) Hey, Hannah! I love basketball,
it’s my favorite sport. I’m not very tall, but I’m
the tallest girl on our team. So this is
my little sister Sophia. So this is my room,
these are my awards, my skating awards
and the science fair. So these are
drawings from school. I love the great outdoors,
I love climbing trees, and I want to be a pediatrician
for special needs kids. Yes! So we needed
to learn more about wind energy and how it worked,
so we went to a real wind farm. Are you Mallory? Yeah, hi ladies, how are you?
(SciGirls) Good. We needed to find someone to
help us, and that was Mallory. (Mallory)
We’re at Crane Creek, this is
a wind farm under construction. It has 66 wind turbines,
so it will be a great place to learn about wind energy. Yeah. C’mon guys, let’s
go check it out. (SciGirls)
Holy petunia,
that thing is massive! Yeah, and that’s just
the first part of the tower. Can you imagine
how tall it’s going to be when it’s fully constructed? Wow, that thing is tall! I don’t know;
I’m guessing taller
than the Statue of Liberty. It will be,
it’s about 120 meters when it’s
fully put together. (SciGirl)
It looks like a giant toothpick. (Izzie)
Ha-ha, good one! (SciGirls)
We were just really awestruck
at the size of these huge wind turbines
and how big the blades were. ♪ Scooch out. ♪ It’s not even halfway. We knew they were big, but standing right next to them,
it was just, wow! It was hollow. Hollow. Wind power. I wonder how many thousands
of meters of wire go into making these wind farms. A lot!
[all laugh] (Mallory)
When someone first decides
they want to build a wind farm in this area,
it can take 2 to 3 years to get a wind farm
up and running, if not longer. This turbine by itself is
going to power 450 homes. A lot of wind farms can be
up to hundreds of turbines. It can kind of vary
on how much energy a particular wind farm
needs to produce. The crane putting the blades
on top of the tower
was a sight to see. We were
wondering how they would get
up there with just one crane. We were looking at it and
all of a sudden we see this guy standing on top of the cell,
and we were like, oh my gosh! (Mallory)
This site in particular
that we’re looking at is good because it’s not close
to any wetlands. It’s not close to any roads,
houses, airports, archaeological sites,
and it’s a good wind resource. A lot of things
really go into deciding where this turbine
is going to go. Then once we got
to the second wind farm, we’re like oh, so this is
how it’s going to look. Here we are at Grand Meadow. This is a fully functioning wind
farm with 67 turbines on it. (SciGirl)
How come
the turbines are moving? (Mallory)
Now we’re pretty close
to the ground. What we’re getting down here is
a lot different than what they’re getting up there
at 400 feet up compared to 5–
wait, how tall are you? Um, 5 feet 1. Okay, well yeah,
it’s a lot different from 5 feet to 400 feet.
[SciGirls laugh] Up here on the top
we have the wind turbines. The wind turbines are connected
underground through cables. The energy
comes down through the
turbine, underground to what’s called
a substation. All the energy gets all mixed
together at the substation. Then it gets carried out to the
nearby communities and houses through above ground power lines
and transmission lines. So is the substation
kind of like a battery? It’s not quite like
a battery, it doesn’t really store the energy,
it more just collects it all. When we were standing there
talking, we would look back. We would see some of the
wind turbines weren’t moving, then all of a sudden
they would be moving. So the wind was
fluctuating a lot. The wind must’ve
really picked up again. Isn’t that interesting how
the turbine kind of– slow down and speed up?
It’s not consistent. It’s a good thing
the wind turbines aren’t closer together because
then they’d hit each other. Like this? Ow! Ow. (Hannah)
So we decided that we were going
to put our mini wind farm on top of a ski hill,
and we decided that because it’s high up
where we get a lot of wind. Even though
it’s not the greatest spot
for an actual wind farm, it would be great
for our mini wind farm. (Mallory)
We’re going to have to do some
testing on your wind farm up there on the ski hill. (SciGirl)
Yeah. We’d love
if you would come with us. (Mallory)
I’d love to. I’ll be there. (SciGirls)
All right. All right! (Izzie)
Hey, let’s go visit the Website. (SciGirls)
♪ Push the button.
Push, push the button. ♪ ♪ Girls, girls, girls. ♪ Why don’t we work
on our project page. Look at, there’s Izzie.
Oh, she’s so cute! Why don’t we take one of Izzie’s
quizzes? All right. Cool! Favorite pairs of shoes. A) Boots,
B) Fancy dress up shoes, C) Sandals, or D) None.
I prefer to go barefoot. (Izzie)
How ’bout E,
all of the above? [laughs] (Vicki)
I guess I’m kind of a tie
between sandals and none. (Nicole) Sneakers all the way.
(Aditi) Oh yeah. (Izzie)
Ooh, let’s check out profiles! I’m Nikki, and this is my new puppy Lucy.
(Izzie) Hi Lucy! I love softball, basketball,
soccer, and a lot of sports. This is my mom,
and we’re working together to be a little bit more green. I’ve been trying
to get my parents to turn off the air conditioner
in summer. Green doesn’t only
save the planet, but it also saves
energy and money. See ya! (Izzie) See ya! (all) Whooo! So now it’s
data collection time. Okay, we should start
by collecting data on 2 spots on the hill,
and we should look for average wind speed
and max wind speed, and we should collect
for 10 minutes. We’ll be down here.
And we’ll be up there. We’re halfway to halfway.
Here we go. (Vicki) No, we’re not
going all the way up there! (Nikki) We’re not?
Yeah we are. (Vicki) This was quite
a workout. (Nikki) Oh yeah. Okay, so what’s our
location on the hill? The coordinates are
north 44 degrees. And 51.309 minutes. The wind is
coming from the East. An anemometer is this handy
little technological device in which we use to calculate
the wind speed. 10 minutes starts now.
Go! All right,
wind speed time… Okay, let’s start. Zero. It’s gonna be a long 10 minutes
without any wind. Yeah. Oh, yeah. Come on, move, please! Still no wind. It’s so hard to collect data on wind
when there’s no wind. Pretty bad, but it was
a great view at the top, so it just made up for it all. At the bottom of the hill
there’s not a lot of wind, and if there is wind
it comes in small little gusts at random moments,
and you can’t really track it. I hope the wind farm works,
I believe that it will. It will stop at random moments,
I bet, because of the wind and the gusts, but I’m
pretty sure it will work. We’ll find
a way to make it work. It was really,
really cool that Mallory
was there, it was lots of fun. What’s your actual
official title? My official title is
a GIS Specialist. GIS stands for Geographic
Information Systems. I analyze data and figure out
where to put wind farms. So what got you interested
in wind energy? I interned with the National
Weather Service, so I learned about wind
and weather and forecasting, and it kind of progressed
from there. Awesome. As a kid, were you
always interested in science? I was. I was. I would
go outside and fly kites kind of like you guys
and watch sci-fi shows and… (Aditi)
Mallory became our friend along
the way instead of our mentor. We could easily approach her
and ask for help, and she was always there for us. Pray for wind! Hey, I’m Vicki. So this is my room. Over here I have my awards. This is from winning First Place in my district
in the spelling bee. So my parents came from Nigeria, which is this kind of
smallish country in Africa. I really, really like music,
and I just got the guitar. I’m not the best at it right
now, I’m still learning. I’ve been playing the saxophone
for 4, going on 5 years. The last time we went to Nigeria
we got to go to a tailor, and he custom-made
some native clothes for us. Here is my family. It’s time for us to say good-bye, so I’ll say it
in Nigerian. “Odabo.” Day 2 of data collection. Yeah, finally. Look,
it’s windy. You ready?
10 minutes starts now. Go! All right, go. Okay, we’re looking
at 5 miles per hour, 10 mph! (Izzie) Yes, wind! 2.5. Oop,
now it’s 6. There it goes
a little. 10. There is no way we could
power our wind farm with this inconsistent wind
down here. The wind is really gusty today,
it’s all over the place. All right,
let’s raise it up to see what we get
at a higher altitude. That sounds good! So we took
the readings at 2 heights, one at 1.4 meters
and another one at 2.4 meters. 10 minutes starts now. Right now it’s going at 10 mph. (Aditi) 6.5.
(Vicki) 5.5. (Aditi)
All right, our reading is 3.5. 12.>>12. 13, 15. (Nikki) 15?
(Vicki) 15. Today we found the wind speed is a lot faster when you
go higher up in the air because there’s
probably less turbulence, and there’s nothing
obstructing the wind. (Hannah)
With the tests, when we had it
at the lower level, those speeds weren’t consistent
at all, but once we got higher, the speeds seem to go
more consistent when we had a bigger wind speed. So should this be the spot
where we put the wind farm? I think so. Hi, I’m Aditi,
and this is my room. Actually, Aditi has
a pretty cool meaning. It means mother of gods. This is my sister Divya. When we were younger, we had
a secret club called the BFSS, and it stood for (both)
Best Friends Sister Sister! So we’re looking at our pictures
from one of our trips to India, one of the coolest things to do
is go bathe in the Ganges River. I like to do art,
and I play volleyball, and I’m also in the orchestra. Oh no, I forgot I have to go to volleyball practice. Bye! Why don’t we recap our data? Our blade length
was 25 centimeters. Our blade shape was the shape of an airplane wing,
kind of like the scooper. The angle was 10 degrees. So we should put all
of our wind turbine blades at 10 degrees to get
the optimum voltage. That sounds right. Do we still
want to use 20 turbines? I think maybe
we should downsize. Yeah, because we have
limited space. Maybe we should try
15 instead of 20. Yeah, that sounds good because
that way we can make 2 rows. One could be 8 turbines,
and one could be 7. So we for sure are
putting our wind farm on the top of the hill, right? Yeah, because on the top of
the hill it’s faster wind and more consistent wind compared
to the bottom of the hill. Okay, so the max wind speed
for the top of the… We knew after we collected the
data that the top of the hill would be the perfect place
for the wind farm. So this is a layout
of our wind farm. We have 8 in the first row
and 7 in the back row, and they’re in a line,
but they’re staggered. (Izzie)
Right, “staggered!” Remember “staggered”–
better for the airflow. Now that we have
our map all done, to the top
of the hill for our wind farm! ♪
♪ One’s 7 and one 8.
4, 5, 6, 7. 8! Okay, we need
to spread them out. There’s a slot right there. How close could we put them? Could we put them here? (Izzie)
Don’t let ’em hit! So this looks like the map
we made, doesn’t it? It sure does. We’ll take the front row; you
guys take the back. Sounds good? All right, let’s do it.
All right, let’s go. Mallory came and helped us
with the wiring,
it was lots of fun. We want to hook the red
to the black, but we want to use the alligator clips
to go in-between. (SciGirl)
Series circuits
are, I think, the easiest circuits
to wire because all it is is just connecting
black to red in like, a ring. (Mallory)
There we go,
black to red. (Aditi)
So one black from one turbine will connect to the red
of another turbine, and it pretty much
just goes around in a ring until you have
one black hanging from one end and a red hanging
from the other end. ♪ It’s moving!
That’s wind! ♪ ♪ Go Vicki. Go Vicki. ♪ ♪ Uh-huh. Uh-huh. ♪ Yeah! Yeah! (Izzie)
These girls sure
know how to go green. 64 volts. (Mallory)
How many volts now? Look at how much fluctuation
we’re getting in the wind. (SciGirl)
So Mallory, what do you think? (Mallory) I love it! I love it. This is a perfect spot
for this experiment; maybe not a real wind farm, but
for this experiment, perfect. What was our
maximum voltage today? 70, well, 70 volts. each water pump
can only withstand about 12 volts, so how many
are we going to need? Exactly– 6. About 6? So let’s get it set up.
(SciGirls) All right! ♪
♪ (Mallory)
What we’re going to do is stick
the wires through the birdbath so we can get our pumps
into the right place. Then we can tape the wires down
with electrical tape. (SciGirl)
So the wire’s in the water. (Mallory)
Exactly– no water on the wires! Now we hook the wires together so we can hook it up
to our wind farm. Here comes the water.
Almost there. It’s gonna be so cool. I can’t wait for the pump to
start working. I’m excited. Can we do like, a drumroll? What?! [all laugh] We had a little bit of problem from the turbines
to the pumps in the birdbath. We knew we had to rewire them, so instead of having all 6 pumps
connected to all 15 turbines, we created 3 circuits in which
2 pumps were connected to a group of 5 turbines,
and that worked a lot better. All right, ready?
Let’s see what happens. All right. Whoo! Yes! All right! C’mon birdies, we’re open for business! (SciGirls)
We have real wind power
and real turbines powering real stuff.
There we go! As the wind fluctuates,
so does the water flow. Yeah, like right now.
[all laugh] So the wind blows the turbines,
which creates energy, which goes through the circuit
of the wires to the pump, and the pump pumps the water
out to the fountain. And we have this. I couldn’t believe it
actually worked! I’m so excited and happy,
it was amazing! I’m glad we chose the top
of the hill because we ended up getting a lot more wind up here
than we did down there. It’s an exhilarating feeling
to feel the wind on your face and knowing that it can power
all the different things like a birdbath, which we saw
today– it’s just so cool! Wind can power almost anything. I mean it’s free,
it’s an easy source, and it’s just everywhere. If you want to power something,
just use wind. (all) Wind energy! You guys blow me away! [laughs] So the wheels turn a generator that powers my computer.
(Jake) Cool. (Izzie) Yeah! So you said you would help me
in any way you could. Sure, whatever you need. Wait, I’m your source
of alternative energy? Yup, your legs are going to
zip me right off the grid! Ah, it’s good, but you’re gonna
have to go faster than that. Oh, perfect! [panting] Just keep that pace. [Jake breathes heavily] Are… you… done… yet? No, I’ve gotta rewrite
the last page. I’m going as fast as I can! Oh, my computer! Oh, you know Jake, being green may not be easy,
but it is important. Now, put the pedal
to the metal! [gasps] Oh! [with British accent]
What you’re doing is Of course! catching
the wind speed? Blimey! It is going at
a precise 1.5 mph. Splendid!
I do say that’s tip-top. Jolly good! (all laugh)
Jolly good. [with country accents]
We’re on a wind farm here, and
we’re seeing some similarities. We got the corn.
We got the sky, wind turbine. Just like bein’ on a farm. We’re harvestin’ wind. Wind! Wind energy. Swimming with dolphins for the
first time was very exciting. We’re looking at the mirror so we can determine where the
dolphins can see themselves. Yahoo! How many things are thrown
in the trash that could’ve been recycled. Number 5 plastics– they are not
recyclable. You guys created something
we could market. This is our seed starting kit. We sketched a dress, and it had
a lot of cool elements in it. Superhero Princess. Thought maybe you could
incorporate technology into fashion. Our garment! Funding for “SciGirls”
is provided by the following… The National
Science Foundation– supporting education
and research across all fields
of science and engineering. The National Science
Foundation– where discoveries begin! (woman) Math, science,
and curious young minds. They’re our future. That’s why Exxon Mobile and
former astronaut Sally Ride created the Sally Ride
Science Academy to help teachers inspire
our students so they may become the scientists
and engineers of tomorrow. ♪
♪ Hey there! Hi! The SciGirls Website
is off the hook! You can set up a profile,
find new friends, create a page
for your science project, watch SciGirls videos,
and have fun! So come on– be a SciGirl
on See you there! Bye! (girls)
♪ S-C-I-G-I-R-L-S ♪ CC–Armour Captioning & TPT

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