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# If you've got a question and you don't know where to go | 0:00:05 | 0:00:08 | |
# Ask Nina for some help Cos she's got a science show | 0:00:08 | 0:00:11 | |
# She makes sense of her senses While helping all her fans | 0:00:11 | 0:00:14 | |
# By doing her experiments with potions and with bangs | 0:00:14 | 0:00:17 | |
-# Touch your tongue -Tongue! | 0:00:17 | 0:00:19 | |
-# Fingers -Fingers! | 0:00:19 | 0:00:20 | |
-# Eyes. -Eyes! -Ears. -Ears! -Nose. -Nose! | 0:00:20 | 0:00:23 | |
# Nina and the Neurons find out what you need to know | 0:00:23 | 0:00:26 | |
# Nina and the Neurons find out what you need to know | 0:00:26 | 0:00:29 | |
# Luke, he helps us with our eyes and Felix with our touch | 0:00:29 | 0:00:32 | |
# Ollie sniffs out smells And Belle, she hears so much | 0:00:32 | 0:00:35 | |
# Bud is Ollie's brother He helps us with our taste | 0:00:35 | 0:00:38 | |
# They're Nina's little neurons And they're coming to your place! | 0:00:38 | 0:00:41 | |
-# Touch your tongue -Tongue! | 0:00:41 | 0:00:43 | |
-# Fingers -Fingers! | 0:00:43 | 0:00:44 | |
-# Eyes. -Eyes! -Ears. -Ears! -Nose. -Nose! | 0:00:44 | 0:00:47 | |
# Nina and the Neurons find out what you need to know | 0:00:47 | 0:00:50 | |
# Nina and the Neurons find out what you need to know | 0:00:50 | 0:00:53 | |
# Oh yeah! # | 0:00:53 | 0:00:55 | |
NINA GIGGLES | 0:00:56 | 0:00:58 | |
Oh, hello. I'm just giving Mr Skeleton's teeth a good brush. | 0:00:58 | 0:01:02 | |
It's very important to keep our teeth clean. | 0:01:02 | 0:01:05 | |
-BEEPING -Oh. | 0:01:05 | 0:01:07 | |
I hear a beep, I see a flash. I wonder what they're going to ask. | 0:01:07 | 0:01:12 | |
ALL: Hi, Nina! | 0:01:15 | 0:01:17 | |
Hi, guys! | 0:01:17 | 0:01:18 | |
-We've got a question for you. -Why is sugar bad for our teeth? | 0:01:18 | 0:01:23 | |
That's a brilliant question. Why is sugar bad for our teeth? Oh! | 0:01:23 | 0:01:27 | |
Why don't you come to my lab and we'll investigate. | 0:01:27 | 0:01:31 | |
ALL: See you soon, Nina. Bye! | 0:01:31 | 0:01:34 | |
Bye! | 0:01:34 | 0:01:36 | |
I'll need help to answer this and I know just who to ask. | 0:01:36 | 0:01:41 | |
OK, neurons, time to get to work. | 0:01:41 | 0:01:44 | |
ALL: Neurons at the ready, Nina. | 0:02:00 | 0:02:02 | |
OK. Today's question is, why is sugar bad for our teeth? | 0:02:02 | 0:02:06 | |
Which neuron will be most useful to help find the answer? | 0:02:06 | 0:02:10 | |
ALL: Me! Me! Me! Oh, me! | 0:02:10 | 0:02:13 | |
Will it be fabulous Felix? | 0:02:13 | 0:02:16 | |
I can help so very much if you need the sense of touch. | 0:02:16 | 0:02:20 | |
will it be beautiful Belle? | 0:02:20 | 0:02:21 | |
I send messages to brain from ear. If there's a sound, I'll help you hear. | 0:02:21 | 0:02:26 | |
Will it be lovely Luke? | 0:02:26 | 0:02:28 | |
For looking and seeing, day or night, | 0:02:28 | 0:02:30 | |
I'll help you with your sense of sight. | 0:02:30 | 0:02:33 | |
Will it be awesome Ollie? | 0:02:33 | 0:02:35 | |
If it's pongy or whiffy but you can't tell, | 0:02:35 | 0:02:38 | |
-my messages help your sense of smell. -Or will it be baby Bud? | 0:02:38 | 0:02:42 | |
Sour, salty, bitter or sweet, I'm your taste buddy whenever you eat! | 0:02:42 | 0:02:46 | |
-It's Bud! -Yippee! | 0:02:49 | 0:02:51 | |
CHEERING | 0:02:51 | 0:02:54 | |
ALL: Go, Bud! Go, Bud! Go, Bud! Go, Bud! Go, Bud! Go, Bud! Go, Bud! | 0:02:54 | 0:03:00 | |
SLURP Give me a taste of the action, Nina! | 0:03:00 | 0:03:04 | |
Today's question is, why is sugar bad for our teeth? | 0:03:04 | 0:03:07 | |
Sugar is something we taste, so Bud, our taste neuron will help. | 0:03:07 | 0:03:11 | |
I need to get the lab ready before the Experimenters arrive. | 0:03:11 | 0:03:16 | |
Nidhi likes writing stories, Holly loves gymnastics | 0:03:17 | 0:03:21 | |
and Slaley likes dinosaurs. | 0:03:21 | 0:03:23 | |
They all want to know about sugar and teeth. | 0:03:23 | 0:03:26 | |
Today, Nidhi, Holly and Slaley become the Experimenters! | 0:03:26 | 0:03:31 | |
-Hi, guys. -ALL: Hi, Nina! | 0:03:32 | 0:03:35 | |
Welcome to my lab. In you come. | 0:03:35 | 0:03:37 | |
Lovely to see you all. | 0:03:37 | 0:03:39 | |
You asked, why is sugar bad for our teeth? | 0:03:39 | 0:03:42 | |
-It's a great question. Why do you want to know? -Cos we get told | 0:03:42 | 0:03:46 | |
to not eat too many sweets cos they're bad for our teeth. | 0:03:46 | 0:03:50 | |
And we want to know why. | 0:03:50 | 0:03:52 | |
Sweets do have a lot of sugar in them, which can be bad for teeth. | 0:03:52 | 0:03:57 | |
But let's find out why. | 0:03:57 | 0:03:58 | |
For our first experiment, we'll use our senses. | 0:03:58 | 0:04:02 | |
ALL: Whoop-whoo! A senses experiment! We're ready, Nina! | 0:04:02 | 0:04:06 | |
Who here brushes their teeth really well? | 0:04:06 | 0:04:09 | |
ALL: Me! NINA LAUGHS | 0:04:09 | 0:04:11 | |
I'm really glad to hear that. We should brush at least twice a day. | 0:04:11 | 0:04:16 | |
In the morning, and just before bed. | 0:04:16 | 0:04:19 | |
Brushing our teeth gets rid of bits of food that we've eaten | 0:04:19 | 0:04:23 | |
and something else, too, called plaque. | 0:04:23 | 0:04:26 | |
"Plaque". I've never heard that word before. | 0:04:26 | 0:04:29 | |
Plaque can make our teeth feel a bit slimy. | 0:04:29 | 0:04:33 | |
Let's roll our tongue over our teeth and see how they feel. | 0:04:33 | 0:04:37 | |
Mine feel a wee bit slimy. Do yours? | 0:04:37 | 0:04:40 | |
ALL: Yes. | 0:04:40 | 0:04:41 | |
That slimy feeling is plaque building up on our teeth. | 0:04:41 | 0:04:45 | |
It stays there until we brush it away. | 0:04:45 | 0:04:49 | |
So we can feel plaque but can we see it? | 0:04:49 | 0:04:52 | |
Say, "cheese!" | 0:04:52 | 0:04:54 | |
ALL: Cheese! | 0:04:54 | 0:04:55 | |
All I can see are lovely white teeth. I don't see any plaque at all. | 0:04:55 | 0:05:01 | |
That's because plaque is white and so are our teeth | 0:05:01 | 0:05:04 | |
so we can't see it. But I know a way we can turn it a different colour. | 0:05:04 | 0:05:10 | |
By chewing these. They're clever tablets from the dentist that | 0:05:10 | 0:05:14 | |
find plaque and make it a different colour, so we can see it. | 0:05:14 | 0:05:18 | |
Nina knows these tablets are safe, | 0:05:18 | 0:05:21 | |
but you should never take tablets on your own. | 0:05:21 | 0:05:24 | |
Let's chew. | 0:05:24 | 0:05:27 | |
OK, all done. | 0:05:32 | 0:05:33 | |
Well, let's take a look. Smile, everyone! | 0:05:33 | 0:05:38 | |
Ha-ha-ha-ha! Their teeth are all blue! | 0:05:39 | 0:05:43 | |
So we can certainly see where the plaque is now! | 0:05:43 | 0:05:47 | |
From our experiment, we've learned that plaque forms on our teeth. | 0:05:47 | 0:05:53 | |
But what does plaque have to do with sugar being so bad for our teeth? | 0:05:53 | 0:05:58 | |
We need to do another experiment, | 0:05:58 | 0:06:00 | |
-after we've brushed our teeth. -ALL: Yes! | 0:06:00 | 0:06:03 | |
This test tube has water and sugar in it | 0:06:05 | 0:06:08 | |
and this test tube has water and plaque in it. | 0:06:08 | 0:06:12 | |
I'm going to add in a special liquid. | 0:06:12 | 0:06:17 | |
This will make both mixtures turn yellow. | 0:06:17 | 0:06:21 | |
Now, watch what happens | 0:06:25 | 0:06:27 | |
when I mix some sugar into the test tube with plaque. | 0:06:27 | 0:06:32 | |
-So, has it changed colour? -ALL: Yes. | 0:06:42 | 0:06:45 | |
-And what colour has it changed to? -Pink. -Red. | 0:06:45 | 0:06:48 | |
Yeah, it's a reddy pink. | 0:06:48 | 0:06:50 | |
Because when we mix sugar and plague together, an acid is being made. | 0:06:50 | 0:06:57 | |
The pink colour tells us there is an acid in the test tube. | 0:06:57 | 0:07:01 | |
It's acid that can harm our teeth. | 0:07:01 | 0:07:03 | |
What does acid do, Nina? | 0:07:03 | 0:07:05 | |
To find out more about acid, we'll go somewhere where they make | 0:07:05 | 0:07:09 | |
a very special type of picture. | 0:07:09 | 0:07:12 | |
Let's go, Experimenters! | 0:07:12 | 0:07:14 | |
Here we go! | 0:07:18 | 0:07:20 | |
I can't wait to see where we'll end up today! | 0:07:20 | 0:07:24 | |
Nina said we were going somewhere where they made pictures. | 0:07:24 | 0:07:28 | |
Maybe Nina's having her picture taken with the Experimenters. | 0:07:28 | 0:07:32 | |
Listen up, guys. We're here! | 0:07:32 | 0:07:34 | |
-Hi, Helen. -Hello, everybody. | 0:07:34 | 0:07:37 | |
We've come here to have a very special picture made. | 0:07:37 | 0:07:40 | |
It's special because it's made using a type of acid. | 0:07:40 | 0:07:44 | |
Have you got a picture for us to print? | 0:07:44 | 0:07:47 | |
-I've got this - a very, very good picture. -Bud! -Baby Bud! | 0:07:47 | 0:07:52 | |
Luke! Look, it's ME! | 0:07:52 | 0:07:54 | |
-It IS Bud. There you go, Helen. -Thank you. | 0:07:54 | 0:07:57 | |
What IS she doing? | 0:08:05 | 0:08:07 | |
She's using special liquid to paint onto a metal sheet, Ollie. | 0:08:07 | 0:08:12 | |
Metal's usually hard and strong, isn't it? | 0:08:12 | 0:08:15 | |
ALL: Yes, Nina. | 0:08:15 | 0:08:16 | |
That's done. | 0:08:23 | 0:08:25 | |
We'll have to put on some safety clothing for the next stage. | 0:08:26 | 0:08:31 | |
You guys look brilliant! | 0:08:31 | 0:08:32 | |
These visors and safety goggles will keep our eyes safe. | 0:08:32 | 0:08:38 | |
Why is the artist putting it in the water? | 0:08:38 | 0:08:41 | |
That's not water, Bud. It's actually a type of acid. | 0:08:41 | 0:08:45 | |
Some acids are weak, like lemon juice or vinegar, | 0:08:45 | 0:08:48 | |
and are safe to touch and eat, | 0:08:48 | 0:08:51 | |
Some acids are very strong and dangerous. So we're wearing these. | 0:08:51 | 0:08:56 | |
Helen's put the picture in the acid | 0:08:56 | 0:08:59 | |
-because it does something special to the metal. -Look! | 0:08:59 | 0:09:03 | |
-There are bubbles on the metal! -That's right. | 0:09:03 | 0:09:06 | |
They show us that something is happening to the metal. | 0:09:06 | 0:09:10 | |
That's because the acid used here is very strong | 0:09:10 | 0:09:13 | |
so it eats away at the metal and makes bits disappear. | 0:09:13 | 0:09:17 | |
There are no bubbles in the places painted black. | 0:09:17 | 0:09:21 | |
Do you see how the acid has eaten away at the metal | 0:09:25 | 0:09:28 | |
where it wasn't covered, and the special black stuff? | 0:09:28 | 0:09:32 | |
ALL: Yes. | 0:09:32 | 0:09:33 | |
-Would you like to put your picture onto paper, Nina? -Yes, please! | 0:09:35 | 0:09:39 | |
First, we need to cover Bud in blue ink. | 0:09:43 | 0:09:45 | |
Helen's using a machine to print Bud's picture. | 0:09:51 | 0:09:55 | |
You look great, Bud. | 0:09:55 | 0:09:57 | |
I'm a work of art! | 0:09:57 | 0:09:59 | |
Oh, thank you SO much! | 0:10:01 | 0:10:03 | |
-That's brilliant, isn't it? -ALL: Yes. | 0:10:03 | 0:10:06 | |
We've learned that some acids are really strong | 0:10:06 | 0:10:09 | |
and can eat away at hard metal. | 0:10:09 | 0:10:12 | |
Come on, guys. Let's go back to the lab for one more experiment. | 0:10:12 | 0:10:17 | |
Your question was, why is sugar bad for our teeth? | 0:10:18 | 0:10:21 | |
So far we've discovered we get plaque on our teeth, | 0:10:21 | 0:10:24 | |
and when sugar mixes with plaque, | 0:10:24 | 0:10:27 | |
it makes an acid. Now we want to know what acid does to teeth. | 0:10:27 | 0:10:31 | |
Let's get experimenting! | 0:10:31 | 0:10:33 | |
ALL: Yeah! | 0:10:33 | 0:10:35 | |
For this experiment, I need four teeth. | 0:10:36 | 0:10:40 | |
You don't have any wobbly ones, do you? | 0:10:40 | 0:10:43 | |
NINA LAUGHS | 0:10:43 | 0:10:45 | |
I'm only joking. | 0:10:45 | 0:10:46 | |
I have some here. | 0:10:46 | 0:10:48 | |
Oh, no! Some of Nina's teeth have fallen out! | 0:10:48 | 0:10:52 | |
Don't worry, Bud, they're not real. | 0:10:52 | 0:10:54 | |
They're made from chalk, like the chalk sticks we can draw with. | 0:10:54 | 0:10:59 | |
For this experiment, we'll PRETEND they're real. | 0:10:59 | 0:11:02 | |
We'll have one tooth each. Can you pass that round for me, please? | 0:11:02 | 0:11:06 | |
Let's pop them into the beaker and see what happens. | 0:11:06 | 0:11:11 | |
Mine's not doing anything. What about yours? | 0:11:13 | 0:11:17 | |
-Mine's disappearing. -So is mine. -Mine's broken in little pieces. | 0:11:17 | 0:11:21 | |
So they are. You can hardly see any tooth at all! | 0:11:21 | 0:11:25 | |
That's because in your beakers was some vinegar, | 0:11:25 | 0:11:28 | |
which is an acid, and that's eaten away at the chalk really quickly. | 0:11:28 | 0:11:33 | |
But in my beaker, there's just water, | 0:11:33 | 0:11:36 | |
so nothing's happened at all, see? | 0:11:36 | 0:11:39 | |
Although our teeth are much stronger than chalk, | 0:11:39 | 0:11:43 | |
eventually, if we eat a lot of sugar, | 0:11:43 | 0:11:45 | |
the acid made will eat away at your teeth, too. | 0:11:45 | 0:11:49 | |
Your question was, why is sugar bad for our teeth? | 0:11:52 | 0:11:55 | |
And I think we've answered it. | 0:11:55 | 0:11:57 | |
We learnt that our mouths make plaque that forms on our teeth, | 0:11:57 | 0:12:02 | |
and when sugar mixes with it, an acid is made. | 0:12:02 | 0:12:06 | |
There are lots of types of acid - | 0:12:06 | 0:12:09 | |
some are weak and safe to touch and eat, | 0:12:09 | 0:12:12 | |
but some are dangerous and can even eat away at really hard metal. | 0:12:12 | 0:12:17 | |
The acid made when sugar mixes with plaque | 0:12:17 | 0:12:20 | |
can damage our teeth over time, | 0:12:20 | 0:12:22 | |
making them brown, making holes in them, | 0:12:22 | 0:12:25 | |
or even making them fall out! | 0:12:25 | 0:12:27 | |
That's why we shouldn't eat too much sugar and always brush our teeth. | 0:12:27 | 0:12:32 | |
-ALL: Thanks, Nina! We will. Bye! -Bye! | 0:12:32 | 0:12:36 | |
Bye! | 0:12:36 | 0:12:38 | |
If you want to know more about the science all around us, | 0:12:41 | 0:12:45 | |
go to the Nina section on the CBeebies website! Have fun! | 0:12:45 | 0:12:48 | |
Lab coat on, Nina? | 0:12:48 | 0:12:49 | |
Lab coat on, Ollie. | 0:12:49 | 0:12:51 | |
Safety gloves on, Nina? | 0:12:51 | 0:12:53 | |
Safety gloves on, Felix. | 0:12:53 | 0:12:55 | |
Don't forget your goggles, Nina. | 0:12:55 | 0:12:57 | |
Goggles are on, Luke. I think we're ready! | 0:12:57 | 0:13:01 | |
# We do experiments in the lab | 0:13:02 | 0:13:04 | |
# Shooby-dooby, in the lab | 0:13:04 | 0:13:08 | |
# Bubbling experiments in the lab | 0:13:08 | 0:13:10 | |
# In the lab! | 0:13:10 | 0:13:11 | |
# Go, Nina, in the lab | 0:13:11 | 0:13:14 | |
# Fizzing and popping Steam and smoke | 0:13:14 | 0:13:17 | |
# We need protection Don't we, folks? | 0:13:17 | 0:13:20 | |
# We always put our safety first | 0:13:20 | 0:13:24 | |
# Shooby-dooby, dooby-dooby | 0:13:24 | 0:13:26 | |
# We do experiments in the lab | 0:13:26 | 0:13:28 | |
# In the lab! | 0:13:28 | 0:13:29 | |
# Go, Nina! # | 0:13:29 | 0:13:31 | |
I've had a brilliant day! | 0:13:31 | 0:13:33 | |
Hearing all that lovely giggling when the Experimenters' teeth went blue! | 0:13:33 | 0:13:38 | |
It's been a marvellous day. | 0:13:38 | 0:13:40 | |
Finding out about how plaque and sugar can hurt our teeth! | 0:13:40 | 0:13:45 | |
Ahh, it's been such a great day, man! | 0:13:45 | 0:13:48 | |
Seeing how they made that picture of Bud. That was pretty cool! | 0:13:48 | 0:13:53 | |
I've had a fabby day! | 0:13:53 | 0:13:55 | |
Sweeties might taste nice, but you shouldn't eat too many of them! | 0:13:55 | 0:14:00 | |
Our day's been bursting with experiments. | 0:14:00 | 0:14:03 | |
I hope you've enjoyed it. See you soon! | 0:14:03 | 0:14:06 | |
-Bye! -ALL: Bye! | 0:14:06 | 0:14:09 | |
E-mail [email protected] | 0:14:09 | 0:14:11 |