This time on Dragonfly TV, we're
donkeying around with wildlife, building
bridges, and bioblitzing in the
wetlands.
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of science and engineering. The
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Dragonfly TV is coming to you GPS style.
I'm Eric. Today we're at 36 degrees
north, 80 degrees West. This place
is known as the Tar Heel State. Babe Ruth
hit his first home run here. It's also
where civil rights sit-in protests
started and the Civil w*r ended.
Not to mention, this place is home to
more NASCAR champions than anywhere else.
Start your engines. We're in North
Carolina.
North Carolina claims to be first in
flight. The Wright brothers flew the
first successful powered airplane off the
coast near Kitty Hawk in 1903. Although
the airplane only flew for 12 seconds,
this was the moment that modern aviation
really took off.
North Carolina has lots of cool places,
but some have some pretty wacky names.
You can visit Toast, Tick Bite,
Why Not, or Bat Cave. Spooky.
You can also see the Great Dismal Swamp
or. Booger Mountain.
Ohh Later on, we'll head over to SciWorks
to meet some farm animals. But first,
we're here in Durham at the North
Carolina Museum of Life and Science, or
as I like to call it, SciGirls
Headquarters. Valencia, Sarah, and Sophia
are in a cool club. It's called
SciGirls.
We're from Durham, North Carolina. And
that's us hanging out. We're all good
friends, but we're all really different.
That's Valencia. She loves basketball,
piano and growing fungus. Fungi.
And so she's a computer whiz. who stays
busy with her turtle, ballet, and
astronomy. I'm sure this wife's out there
somewhere, just we haven't found it yet.
And that's me, Sarah. This is my horse,
Maggie. I ride my horse whenever
possible. But even though I live on a
farm, one of my favorite pets is hissing
c*ck. Oh, that's so sweet.
But we're not just friends. That's right.
We're SciGirls. And this is
our SciGirls headquarters, the North
Carolina Museum of Life and Science.
At the museum, you can learn about
weather, space, and
butterflies. That's your favorite
butterfly. Yeah, this is my favorite one
here. I'm a junior animal keeper here.
In our group, SciGirls, we create our own
projects. And our newest project is a
project on shrinking wildlife population.
Yeah, and we don't need to just be
worried aboutThe large and exotic animals
in Asia and Africa. There's animals right
here in your own backyard that we want to
help protect. So to help raise awareness,
we're thinking about creating a website
as part of our project.
You know, it's hard to tell what's
disappearing from the habitats if we
don't know what's there to begin with.
Well, have you guys ever heard of a
BioBlitz?No. It's where a large group of
people go searching through a location to
see how many plants and animal species
there are. We don't have enough time or
enough people to do a real BioBlitz. So
why don't we do a mini BioBlitz?That'd be
cool. Ideally we need a place where there
are a lot of animals in a small area. We
went to check out the museum's wetland
exhibit. Over here it says over 70% of
North Carolina'sspecies live in wetlands.
We did some research and picked out three
types of really different wetlands:
cypress swamp, the coast and forest, and
salt marsh. We recruited our SciGirls
mentor, Ariana, to take us on the
BioBlitz trip. She's a scientist who
helps us with our projects. Ariana's in
the wetlands ecology department at Duke
University. Who's ready to go?Me. I
am. Okay, do we have the waders?Check.
Your guidebooks?Here. All right, and the
notes.
Our bio-blitz will take us to a cypress
swamp, a coastal salt marsh, and then up
a coast and forest.
Our first wetland was a cypress swamp,
where towering cypress trees grow out of
weirdly black water. Snakes,
alligators, birds, and exotic flowers
love this watery home.
Right from the start, we were surrounded
by cypress trees,So Valencia put that in
our BioBlitz journal. So imagine, these
trees are living in this, you know, many
feet in deep water. Pretty impressive.
When we put our paddles in the water, we
couldn't even touch the bottom.
So we found this really beautiful white
orchid. Ladies' tresses,
three-inch flowers. There's like five
stems, one, two, three, four, five, and
they look like bells or a brain.
We saw some green stuff floating in the
water around the lily pads. We thought it
was algae. Okay, it's not algae. What
does algae look like?Is it duckweed?It is
duckweed, yes. Duckweed are tiny,
floating plants, and there were thousands
of them. It's like abundant, very
abundant. That's a good way of saying it.
Hey, Sarah, I don't think we can go much
farther. Why not?Can you say there are
sticks here?It looks like a beaver dam.
Ohh Wow. Beavers have stopped us. We hung
out, but we didn't see any beavers. Maybe
if we had come in the summer instead of
the fall. Okay, I know a repeat after me
song, if anybody wants to do it. Okay.
Way down yonder, not far off Way down
yonder, not far off A blue bird died from
the whooping cough A blue bird died from
a whooping cough But that song actually
helped us go straight. The
girls aren't done bio-blitzing just yet.
We'll catch up with them again, but not
until you ponder this week's science
secret.
There are more secrets in this state than
just what's under your hood. North
Carolina is connected to one of the
most famous New York landmarks.
But how?HmmIf
we flash back to our past New York
adventures, maybe there's a clue.
Scott's friendly-- Taxi!Hey, can
anyone get attacks you?I want
to be a part of that. No,
no, no, noHey, wake up. Ah,
memories. Think about it while we jump
back to my favorite team, the SciGirls.
Sorry, guys. Let's see what else they're
discovering about the North Carolina
wetlands.
Next up was the salt marsh on a barrier
island called Hammocks Beach, right on
the Atlantic coast. Salt marshes are
among the most biodiverse habitats
anywhere, with tall grasses,
birds, amphibians, and fish. We were so
psyched. Yeah.
This is what you call cordgrass.
Oh, wow. That's cool. Let's head towards
this marsh over here. Yeah. OK. Oh, what
did you find?I think it's some type of
sponge. It was over there by the corn
grass. Look how orange it is. Look at
that. It really is a sponge. A little
crab. It's a habitat for other animals.
Exactly. Hey, guys, look, I found a fish.
I think it's just a minnow. Maybe it's a
baby. Yeah, this is a nursery for finfish
and shellfish before they're ready to go
out into the ocean. What could I have
found?glass squirt. Look how pink it is.
Yeah, and it stores the salt. Yes,
exactly. It's salty. Mmm, it's really
salty. Whoa! There you got
it. Yes! Whoo! Wow, Sarah, where did you
find these?They were just under a shell.
Look at him. Good. He's really
mad. Sea squirt?Whoo! Don't
squeeze it too much, or else her guts
will just go everywhere.
Our last stop is a wetland that doesn't
look too wet. It's a Picosan wetland,
where pine trees and shrubs grow. You
sometimes don't even see standing water,
because a lot of moisture is stored in
heavy, wet soil called peat. And there
are dense, thorny bushes everywhere.
Ow, ow. Are you OK?Are you OK?I'm good.
Moving right along. Oh, guys, look at
this moss. It's really spongy. Oh, you
felt the sphagnum. Oh, wow, I'm, like,
sinking into it. Is it in the water?
Yeah, it's like on top of the water. See?
So this is sphagnum. Sphagnum can hold up
to 800 times its weight in water. Wow. So
try squeezing that. Woo! It's
looking wonderful. All the plants here
thrive in wet conditions like pond pine
and tai-tai. All right, let's go ahead
and take a soil sample here. Here, I'll
take this so you can help. Okay, great.
Thank you.
There we go. That's a good one. I can,
like, really feel how smooth it is down
here. If we could take a deeper soil
sample, somewhere probably around 30 to
this organic matter. And then underneath
this, we're actually basically standing
on water. Like, the floor's so squishy.
Why don't we try bouncing on it?Yeah. Oh,
wow. It's like we're really bouncing.
That's really cool.
Wow. No, we won't fall under, but there
is underneath the soil here then a layer
of water. So we're basically standing on
water. water with some soil. But this is
like a floating forest. Yeah, basically.
That's so awesome. It's like a little
floating boat. And they say you can't
walk on water. Exactly.
We just did it. I'm so saying that on
Monday. I walked on water last
weekend. Now it was time to compile our
loggers. and compared the three wetlands.
Remember the blue heron?We did see that
in two separate habitats, in the salt
marsh and in the cypress salt. But not
many species overlapped, like all three
of them. Well, each wetland was very
unique in their own special way. And the
dominant species in each one was
different.
Just think about how many animals and
species we would have seen if it was a
real bio-blitz. It would have really
helped if we had more people and more
time. Even on our mini BioBlitz, we saw
so much wildlife-- plants, birds, fish,
insects, and reptiles. We totaled 33
different species in the salt marsh, 29
in the cypress swamp, and 12 in the
Pocosin Forest. We went to the
Duke University Wetland Center to show
Ariana our results. So what did you guys
find out from the BioBlitz?We found out
about how unique the different habitats
are, right?So the plant communities were
very unique. There are so many different
kinds of wetlands, and they're all
serving similar functions like water
purification and nurseries. Nurseries.
Exactly. Next, Ariana took us to the
wetland where she does her research. So
this site is part of Duke Forest. What
this site was was a degraded wetland, and
the point of the restoration was to be
able to bring the site back to being a
functioning wetland. What we want to do
is see how can the plants that we're
planting in a restoration site affect the
removal of a pollutant in a natural way.
because I really like field work. I like
being outside, and I knew I wanted to do
environmental science from about third
grade on. What happened in 3rd grade for
me was the spill of the Exxon Valdez,
and I saw the photographs of the birds
all covered in oil, and I knew I wanted
to get involved with saving the
environment. I was very outgoing, was
even called bossy by some of my friends,
and my parents would take my brother and
me hiking in the mountains or to the
beach, and I realized that humans were
having a negative impact on the
environment. And then I was a junior in
college, and I just decided that the
wetlands were the intersection for me of
my interest in. helping people and also
helping the environment. But now it was
time to say goodbye to Ariana. Oh,
awesome. Thanks, Ariana. You're welcome.
You're my hero. Bye. The SciGirls are
awesome. We went back to making our
SciGirls website. Let's take a look at
the picture we just added. Okay. That
looks really good. Yeah, I like that.
Should we add more pictures?Ohh Yeah, I
think so. It's just a start. But if even
one more kid gets why we have to take
care of wildlife habitats, maybe, just
maybe,That's one more plant or animal
that doesn't disappear. We're not just
friends. That's right. We're SciGirls.
I couldn't open my face. Half
of North Carolina's wetlands have
disappeared over the last 200 years.
Wetland ecologists like Ariana and the
SciGirls are the key to keeping wetlands
around. Click on our website to see
Valencia, Sarah, and Sophia's pictures.
You can also find out if there's a
SciGirls Club in your town.
Surf on over to the Dragonfly TV website
at pbskidsgo.org. Stream a
cool DFTV video, play an awesome
game, or try a surprise. Do it. And don't
forget to tell us what you're doing with
science. We want to hear from you.
Have you figured out North Carolina's
science secret?Something in
Winston-Salem is said to be a prototype
for a famous New York City landmark.
Here's a hint. It's a tall
building. Time may be running out for you
to answer the science secret, but you're
just in time to get to it and do it.
See just how heavy a newspaper can be.
You'll need safety goggles, a glove, a
thin wooden stick or a yardstick, and a
sheet of newspaper. Set the stick on the
table, letting four inches hang off the
edge. Lay a sheet of newspaper over the
stick. Put on the glove and goggles and
give the stick a whack with whack.
Whoa, the stick breaks!Now try it
again with a piece of folded newspaper,
but be careful. What
happens if you try it with different
kinds of paper?Let us know what happens
when you do it. You'll find the
instructions for this one and others on
our website. Now let's check out Explorus
Middle School. home of the North Carolina
Bridge Building Champions.
Check it out! I'm
indestructible! At Explorus, in our
bridge building club, we have five major
points. The first is we design our bridge
on paper. Then we cut out the pieces and
build our bridge. After that, we weigh
our bridge to calculate the efficiency,
and then we test it using a bucket and
sand to see how much it'll hold.
OnceWe have our cross bridge. We
analyze and make sure that we know what
broke, where it broke, why it broke, and
how we can improve. There's a lot
of math skills that I've never really
used before that I finally get to use in
this. I like how you can get
involved in it and build an actual bridge
and then compete. like Florence Middle
School has won first place in the finals
two years in a row. Go, go,
go Mr. Smartypants The bridge we just
tested might be better than the bridge
that was last year. We don't really know,
so we're just going to have to keep
testing and keep building bridges and
see how light and strong we can be. Keep
on fighting
'til the end Last year, these middle
schoolers beat out high schoolers. Can
they do it again?My money's on Sam and
his g*ng to three people. Now we're off
to Winston-Salem. Sci-fi fans Imran and
Nabil are watching all sorts of critters
to find the best farm friends.
Hi, I'm Imran. And I'm Nabil. We have a
lot of fun together, no matter what we're
doing.
But our favorite thing to do is to write
stories. Science fiction stories.
Cyberspace. Giant Fist Continuum.
Pulsatronic Brain. Robo Protons. We
get some of our best ideas for stories at
SciWorks, the science museum where we
live.
I make sound.
Oh, ohh look at that skill.
Is it a real bison?No, it's a real
dead bison.
Our favorite thing at CyWorks is the
animals. But not these animals.
These animals!
We met Kelly, who takes care of the farm
animals. She introduced us to awesome.
This is Snowflake. This is
Tini, and she is a black Angus cross. The
little brown one is Snickers. Later,
Gator. And this is her mom,
May. And the little black and white one,
that's S'mores. Besides
farm animals, the environmental park at
Starworks is other animals like deer,
otters, and ducks.
Ohh Look at those deer. Sure glad this
fence is here. Whoa, look how tall it is.
Yeah, I've never been this close to a
deer before. I wonder what makes some
animals farm animals and others not.
That's a good question. Come on, let's go
check it out. We went back to look at the
farm animals once more to find the
answers to our question. We started by
making a list of behaviors that we could
use to compare farm animals with wild
animals. So what do you think we need to
know in order to start a farm?I guess we
would need to know what the animals eat.
Yeah. You would also need to know where
they live. Yeah, would they live in a
barn or an open space?I think I'd like a
friendly animal better, because I'm going
to be around them a lot. And I would pick
a useful animal, because I need a good
reason to work so hard on a farm. So what
have we got so far?Uh,
diet, environment, friendliness, and
usefulness. Well, I think that sounds
like a pretty good list. We took our list
of questions straight to the barn. We
kept a scorecard for each animal we
observed. A green check means that
their behavior would be easy to manage
and farm friendly. A red X
means it would be harder to manage their
behavior on a farm.
Whoa, look at the barn.
Here comes Snowflake, and she goes
straight for the food. We saw Snowflake
eat pellets and hay. Looks like dog food.
She lived in her own stall, and she was
very friendly to us. Horses are
useful on farms for riding and for
pulling carts. Just like Snowflake, the
sheep ate pellets and lived in a barn.
They can be used for their milk, and a
lot of people get them for their wool.
They seem pretty friendly.
Both cows love their hay. They're good at
sharing their food and their space in the
barn. They didn't seem to mind us being
around. We know cows have many uses, from
milk and cheese to meat. Here are the
goats. It looked like the goats were
eating the same kind of food as the other
animals. You got a lot of room to run
around. You got that big pasture out
there. The goats were friendly and
curious. Just like cows, goats are often
used for their milk. We noticed that even
though the animals live in the same barn,
The different animals have their own
stalls, and they have plenty of space for
running around. Let's head over to the
environmental park and see if any of
those wild animals have what it takes to
live on a farm. Sure, that's a good idea.
Ohh These otters are cool. We decided
that we would need a lot of water if we
started an otter farm. What is that
they're eating?I think it's fish. I'll
write that down. We didn't see any other
meat-eaters at the barn. The otters were
curious, but not necessarily friendly.
They were definitely entertaining. We
guessed that people might like to use
otters for their fur.
Well, let's take some notes on the deer.
We noticed that deer need a lot of space
to run around, but they also need a tall
fence to keep them from running away. The
deer ate pellets, just like the farm
animals. It was hard to know if the deer
were friendly or not. They seem very
friendly, don't they?Yeah, I think it's
just because they've been around people a
lot. Yeah, this tastes to be pretty
unusual for deer. We know deer are useful
for their hide and his food. Well, I
think we've seen enough. Let's go. Yeah.
After watching all of the animals, we
felt like we needed to learn more about
farms. Kelly told us about some local
farms that we could visit. Our first stop
was a donkey farm. I
didn't know there were farms just for
donkeys. The donkeys had a barn and a
pasture, just like most of the animals at
CyWorks. They also ate the same food.
There's a lot of haystacks up there.
They looked like they wanted attention
from us. We learned that people use
donkeys for lots of different reasons,
from pets to cart pulling. Our second
stop was to a dairy farm, where we met
more than 60 cows. I am cow,
hear me moo. I weigh twice as
much as you We saw firsthand what
cows are used for. Time to milk the
cows. Wow. I
wonder if it hurts. It doesn't hurtle.
The cows are friendly enough to let us
get good and close. How many gallons of
milk do they give every day?They usually
give anywhere from 6 to 10 gallons a day.
Wow. So
these cows, they have their own
individual stalls right here. What do
they eat?They eat hay, corn, grains...
and they eat the grass from the pasture.
Okay, I think we've seen enough of the
cows. Let's move on.
After having visited all these farms, I
can see how important it is to have the
right kind of space for certain animals.
Yeah, like the cows and the donkeys.
They had two different types of barns.
And the cows, they had room to roam
around. But they each still have their
own individual stalls. Deer like to run
fast and far. They also like to hide.
I can't exactly picture a deer standing
still in one of those stalls, like the
dairy cow. Hey, you know, I think all the
farm animals that we've seen have been
grass eaters. Yeah, I haven't exactly
heard of any farm animals that were
actually meat eaters. Even though every
animal needs food and a good environment,
their specific needs are different. Yeah,
and the simpler the needs of the animal,
the easier it is to keep them on a farm.
Hey, you know, I just got an idea for our
next science fiction story idea. All
right, let me guess. Does it involve
farms in an alternate planet?
You got it. Now, there's a
planet far, far away. And they need
cows. But they don't have any
cows.
You sure do have to do a lot of research
before you put any old animal on a farm.
I'm beginning to have second thoughts
about that butterfly farm I was going to
start. Speaking of farms, North
Carolina farms grow a lot of sweet
potatoes. In fact, they're the official
state vegetable. Thanks to a group of 4th
graders who fought for the sweet treat,
kids here eat sweet potato fries, sweet
potato cake, sweet potato pizza sauce,
and sweet potato smoothies. I'm going to
try some sweet potato chips.
That's sweet. Umm Ready for something
else sweet?The answer to our science
secret. How did a North Carolina
building help shape the New York City
skyline?Architects built a practice
model of the Empire State Building in
Winston-Salem.
The RJ Reynolds Building
is the most important piece of
architecture in Winston Salem's downtown.
The architects for the Reynolds Building
most notably designed the Empire State
Building. Architects often build
prototypes because they want to see how
they work and if they work. Some people
have said that the Reynolds Building was
the prototype for the Empire State
Building, and you might see a little
similarity between the two buildings.
The RJ Reynolds Building was completed in
Building opened its doors in 1931. The
biggest difference would be the height of
the buildings. The Reynolds Building is
Building is a whopping 103.
We have our own little baby Empire State
Building right here in Winston Salem.
Wow! Who would have thought that North
Carolina was the testing ground for one
of the country's tallest buildings?
Dear Mom, we're in North
Carolina. We went to a
dairy farm, met the cutest
little donkey named Peanut, and I
wore waders in the wetlands. I'll
see you soon. Love, Eric.
Don't be a stranger. Tell us what you're
up to. We want to hear from you.
Surf on over to the Dragonfly TV website
at pbskidsgo.org. Tell us
what you're exploring in science museums
where you live. We want to hear from you.
Want to watch Dragonfly TV again?You can
download videos of everything you see on
our show. Coming up on
Dragonfly TV GPS.
Pack your bags for next time on Dragonfly
TV GPS. North
Carolina rocks. time to race off to our
next city. See you next time on Dragonfly
TV.
Major funding for Dragonfly TV is
provided by... The
National Science Foundation, supporting
education and research across all fields
of science and engineering. The
National Science Foundation, where
discoveries begin.
PBS has been inspiring new ideas and
creativity for generations of bright
young minds. Barbie's, proud sponsor of
Dragonfly TV and PBS.
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06x03 - North Carolina
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Pioneered a "real kids, real science" approach to children's science television and led to the development of the SciGirls television series.
Pioneered a "real kids, real science" approach to children's science television and led to the development of the SciGirls television series.