0:39:50 > 0:39:57.
0:40:06 > 0:40:08# If you've got a question and you don't know where to go
0:40:08 > 0:40:11# Ask Nina for some help Cos she's got a science show
0:40:11 > 0:40:15# She makes sense of her senses While helping all her fans
0:40:15 > 0:40:17# By doing her experiments with potions and with bangs
0:40:17 > 0:40:19- # Touch your tongue - Tongue!
0:40:19 > 0:40:20- # Fingers - Fingers!
0:40:20 > 0:40:23- # Eyes.- Eyes! - Ears.- Ears!- Nose.- Nose!
0:40:23 > 0:40:26# Nina and the Neurons find out what you need to know
0:40:26 > 0:40:29# Nina and the Neurons find out what you need to know
0:40:29 > 0:40:32# Luke, he helps us with our eyes and Felix with our touch
0:40:32 > 0:40:35# Ollie sniffs out smells And Belle, she hears so much
0:40:35 > 0:40:38# Bud is Ollie's brother He helps us with our taste
0:40:38 > 0:40:41# They're Nina's little Neurons And they're coming to your place!
0:40:41 > 0:40:43- # Touch your tongue - Tongue!
0:40:43 > 0:40:44- # Fingers - Fingers!
0:40:44 > 0:40:48- # Eyes.- Eyes! - Ears.- Ears!- Nose.- Nose!
0:40:48 > 0:40:50# Nina and the Neurons find out what you need to know
0:40:50 > 0:40:53# Nina and the Neurons find out what you need to know
0:40:53 > 0:40:54- # Oh yeah!- #
0:40:57 > 0:41:01Oh, hello! I'm trying to remember where I put my red pencil.
0:41:01 > 0:41:06I used it just now to draw this picture. Mm, let me think. Erm...
0:41:08 > 0:41:13Oh, I remember now! I put it behind my ear for safe keeping.
0:41:13 > 0:41:15ALARM BEEPS
0:41:15 > 0:41:18I hear a beep, I see a flash! I wonder what they're going to ask?
0:41:19 > 0:41:24- Hi, Nina.- Hi, guys!
0:41:24 > 0:41:27- We've got a question for you. - How can we remember so many things?
0:41:27 > 0:41:32That's a great question! How CAN we remember so many things?
0:41:32 > 0:41:34I wouldn't mind improving my memory.
0:41:34 > 0:41:38Why don't you come down and we'll do some experiments to investigate.
0:41:38 > 0:41:42- See you soon, Nina! Bye.- Bye!
0:41:42 > 0:41:44I'll need some help to answer this.
0:41:44 > 0:41:48and I know just who to ask. OK, Neurons, time to get to work.
0:42:05 > 0:42:08ALL: Neurons at the ready, Nina!
0:42:08 > 0:42:12OK, today's question is, how can we remember so many things?
0:42:12 > 0:42:16Which Neuron would be most helpful in finding us the answer?
0:42:16 > 0:42:18ALL: Me! Me! Me!
0:42:18 > 0:42:21Will it be fabulous Felix?
0:42:21 > 0:42:24I can help so very much if you need the sense of touch.
0:42:24 > 0:42:26Will it be beautiful Belle?
0:42:26 > 0:42:31I send messages to brain from ear. If there's a sound, I'll help you hear.
0:42:31 > 0:42:33Will it be lovely Luke?
0:42:33 > 0:42:35For looking and seeing, day or night,
0:42:35 > 0:42:38I'll help you with your sense of sight.
0:42:38 > 0:42:40Will it be awesome Ollie?
0:42:40 > 0:42:43If it's pongy or whiffy but you can't tell,
0:42:43 > 0:42:47- my messages help your sense of smell. - Or will it be baby Bud?
0:42:47 > 0:42:51Sour, salty, bitter or sweet, I'm your taste buddy whenever you eat!
0:42:51 > 0:42:54BEEPING
0:42:54 > 0:42:57It's all the Neurons!
0:42:57 > 0:43:03ALL: Go, Neurons! Go, Neurons! Go, Neurons! Go, Neurons!
0:43:03 > 0:43:07Go, Neurons! All Neurons hip-hop-happy to help, Nina!
0:43:07 > 0:43:11Today's question is how can we remember so many things.
0:43:11 > 0:43:14Because all of our senses are important in remembering things.
0:43:14 > 0:43:17I have a feeling I'll need help from all the Neurons today.
0:43:17 > 0:43:21Right, I need to get the lab ready before the experimenters arrive!
0:43:22 > 0:43:28Sam likes archery, Lewis likes pizza and Mason loves fencing.
0:43:28 > 0:43:31But they all want to know how we can remember so many things.
0:43:31 > 0:43:36For one day only, Sam, Lewis and Mason become the experimenters!
0:43:37 > 0:43:42- Hi, guys!- Hi, Nina! - Welcome to my science lab! Come in!
0:43:44 > 0:43:48Your question is, how can we remember so many things,
0:43:48 > 0:43:49which is a great question.
0:43:49 > 0:43:53- Why do you want to know? - We have to remember lots of things.
0:43:53 > 0:43:56LIke how to write our names and ride our bikes.
0:43:56 > 0:43:58We want to know how we remember.
0:43:58 > 0:44:03This morning, I had to remember to have a shower, get dressed,
0:44:03 > 0:44:06put my bunches in, eat my breakfast and brush my teeth.
0:44:06 > 0:44:10And that was all before I'd even left the house!
0:44:10 > 0:44:14I think we need to do some investigating to find out more.
0:44:14 > 0:44:17For our first experiment, we're going to use our senses!
0:44:17 > 0:44:22ALL: Woohoo! A senses experiment! We're ready, Nina!
0:44:22 > 0:44:25The things we remember are called memories
0:44:25 > 0:44:30and these memories are stored here, inside our brain.
0:44:30 > 0:44:34Our brain is the thing inside our head that controls our body
0:44:34 > 0:44:37and lets us think and remember.
0:44:37 > 0:44:41But memories start with our senses.
0:44:41 > 0:44:45Seeing, hearing, smelling, tasting and touching.
0:44:45 > 0:44:46ALL: That's us!
0:44:46 > 0:44:48OK, experimenters.
0:44:48 > 0:44:50You're wearing blindfolds
0:44:50 > 0:44:53because I want you to find out how our different sense Neurons
0:44:53 > 0:44:55can help us remember things.
0:44:55 > 0:44:57So, gently feel what's in front of you
0:44:57 > 0:45:01and describe what it makes you think of
0:45:01 > 0:45:03- A towel.- That's right.
0:45:03 > 0:45:05When do you remember using a towel?
0:45:05 > 0:45:08When you get out the bath.
0:45:08 > 0:45:11When you're going to dry your hands when you've just had a wash.
0:45:11 > 0:45:13Great. So just by touching the towel,
0:45:13 > 0:45:18you remembered having a bath and drying your hands. Excellent.
0:45:18 > 0:45:22Have a smell of this.
0:45:22 > 0:45:23Big sniff, Lewis.
0:45:23 > 0:45:27And, Nathan. What does that remind you of?
0:45:27 > 0:45:30- Toothpaste.- Oh, you're right!
0:45:30 > 0:45:33And what does toothpaste remind you of doing?
0:45:33 > 0:45:35Brushing my teeth.
0:45:35 > 0:45:38That's right. So you're smelling the minty smell
0:45:38 > 0:45:40and it's reminding you of brushing your teeth
0:45:40 > 0:45:44Excellent, guys. Now I'm giving you all something to taste.
0:45:44 > 0:45:49Now... Pop it into your mouth.
0:45:49 > 0:45:52And describe what it is.
0:45:52 > 0:45:55- Popcorn.- Popcorn.
0:45:55 > 0:45:59- And do you remember where you've tasted that before?- Cinema.
0:45:59 > 0:46:01Yeah, the cinema, well done.
0:46:01 > 0:46:04You can take your blindfolds off for the final part of the experiment.
0:46:04 > 0:46:07Look here at this picture.
0:46:07 > 0:46:10- Tell me what you think it feels like to be there.- Warm.- Exactly.
0:46:10 > 0:46:13You can imagine that this place feels warm
0:46:13 > 0:46:16because you remember what it's like to be somewhere sunny.
0:46:16 > 0:46:19So we use our memory
0:46:19 > 0:46:23to remember how things look, sound, feel, smell and taste.
0:46:23 > 0:46:27And we can also use it to imagine what things might be like
0:46:27 > 0:46:32and then we store these memories inside our brain.
0:46:32 > 0:46:35But how do we actually remember things? Time for another experiment!
0:46:35 > 0:46:37ALL: Yay!
0:46:38 > 0:46:43Now, underneath this cloth, there are ten objects
0:46:43 > 0:46:45and I'm going to reveal them, just for a few seconds,
0:46:45 > 0:46:48and I'd like you to try and remember as many as you can.
0:46:48 > 0:46:50But no touching, OK?
0:46:50 > 0:46:52- Are you ready? - ALL: Yeah!
0:46:52 > 0:46:54Here we go!
0:47:00 > 0:47:04Oooh. OK, can you tell me all the ten objects?
0:47:04 > 0:47:06- Bell.- Bell.
0:47:06 > 0:47:08- Torch.- Magnifying Glass.
0:47:08 > 0:47:10Ooh...
0:47:10 > 0:47:12Grapes.
0:47:12 > 0:47:13- Yes.- Teddy bears.
0:47:16 > 0:47:20Let's try it again, and I'm going to give you longer to look at them.
0:47:20 > 0:47:23But I'd also like you to pick up the object
0:47:23 > 0:47:28and try and use as many of your senses as you can, OK?
0:47:28 > 0:47:30Ready, steady, go!
0:47:32 > 0:47:34SQUEAK!
0:47:34 > 0:47:35THEY GIGGLE
0:47:39 > 0:47:42SQUEAK!
0:47:42 > 0:47:44Ooh.
0:47:44 > 0:47:46NINA GIGGLES
0:47:50 > 0:47:54OK, everything back on the desk. Ooh!
0:47:56 > 0:48:00OK. Now, tell me what items you remember.
0:48:00 > 0:48:02The torch.
0:48:02 > 0:48:06- Yeah, anything else? - The candles.- Very good.
0:48:06 > 0:48:11The jelly beans, because of the different flavours.
0:48:11 > 0:48:13So you liked the taste of the jelly beans.
0:48:13 > 0:48:16- The orange toy. - Why did you remember that, Sam?
0:48:16 > 0:48:19Because it was quite loud.
0:48:19 > 0:48:21Yeah, it did make a loud, squeaky noise.
0:48:21 > 0:48:24The soap smells nice.
0:48:24 > 0:48:29- Oh, so that's why you remembered it? - The bell, it makes lots of noise.
0:48:29 > 0:48:32Well done! You have amazing memories.
0:48:32 > 0:48:35And you remembered more the second time round
0:48:35 > 0:48:39because you had lots more time to examine them
0:48:39 > 0:48:42using more of your senses.
0:48:42 > 0:48:45So rather than just seeing the shiny bell,
0:48:45 > 0:48:48you knew that it made a loud noise.
0:48:48 > 0:48:49SHE LAUGHS
0:48:49 > 0:48:54But how do our brains take information from our senses
0:48:54 > 0:48:56and make memories?
0:48:56 > 0:48:59To find out, we need to take a step in the right direction. Let's go!
0:48:59 > 0:49:00ALL: Yeah!
0:49:03 > 0:49:06I wonder where Nina is taking us.
0:49:06 > 0:49:08She talked about taking a step.
0:49:08 > 0:49:11I hope she means down steps.
0:49:11 > 0:49:14But this doesn't look like a dance floor.
0:49:14 > 0:49:16Wow, we're on a beach!
0:49:16 > 0:49:22OK, experimenters, we've discovered that memories start with our senses
0:49:22 > 0:49:26When we see, hear, smell, taste or touch something.
0:49:26 > 0:49:30And our memories are stored up here, in our brain.
0:49:30 > 0:49:34But how does our brain remember things? Let's get experimenting!
0:49:34 > 0:49:36ALL: Yeah!
0:49:36 > 0:49:39When we remember something, it makes a path in our brain,
0:49:39 > 0:49:43so each of us is going to make a path
0:49:43 > 0:49:47in this sand by walking from here to one of those flags.
0:49:47 > 0:49:50One, two, three, go!
0:50:05 > 0:50:09Hey-hey! Well done, guys, we made a path in the sand!
0:50:09 > 0:50:13And once a path is there, it should be easy to follow again.
0:50:13 > 0:50:15Let's try it.
0:50:36 > 0:50:40We did it! And what's happening to the paths?
0:50:40 > 0:50:42They're getting deeper, Nina.
0:50:42 > 0:50:45Yes, the more times you use the same path,
0:50:45 > 0:50:49the deeper the footprints will get, making it even easier to follow.
0:50:49 > 0:50:51And it's the same with our memories.
0:50:51 > 0:50:53The more often we remember something,
0:50:53 > 0:50:55the stronger the memory gets.
0:50:55 > 0:50:57So, let's follow the paths again!
0:51:07 > 0:51:11Nina's really putting her foot down today! Ha-ha-ha!
0:51:11 > 0:51:14These lovely, clear paths we've made
0:51:14 > 0:51:16are a lot like the paths we make in our brain
0:51:16 > 0:51:19when we remember something over and over again.
0:51:19 > 0:51:22But, if we don't try and remember something for a while,
0:51:22 > 0:51:24this can happen.
0:51:28 > 0:51:32- So, what do you see, experimenters? - There's paths going away, Nina.
0:51:32 > 0:51:36That's right, the paths started to fade, just like memories can.
0:51:36 > 0:51:39This makes it harder to follow the path
0:51:39 > 0:51:41and that means it can take longer to remember something.
0:51:41 > 0:51:45That's why we need to practice things over and over again,
0:51:45 > 0:51:47like riding a bike or writing our name -
0:51:47 > 0:51:50so we can remember how to do them really well.
0:51:50 > 0:51:53Now, I hope I can remember how we can get back to the lab.
0:51:53 > 0:51:56Ah, yes, I remember. This way!
0:51:57 > 0:52:02So, your question was, "How can we remember so many things?"
0:52:02 > 0:52:04And I think we've answered it.
0:52:04 > 0:52:09Memories start with our senses, when we see, hear, smell,
0:52:09 > 0:52:11taste or touch something.
0:52:11 > 0:52:14Each new memory creates a path in our brain.
0:52:14 > 0:52:17The more we remember something and use the path,
0:52:17 > 0:52:19the stronger the memory gets.
0:52:19 > 0:52:22It's just like when you learn to ride a bike -
0:52:22 > 0:52:26the more you practice, the easier it is to remember how to do it again.
0:52:26 > 0:52:28So I hope that's answered your question
0:52:28 > 0:52:32and, so you don't forget all the fun we had today,
0:52:32 > 0:52:35I've got you these - little memory bags!
0:52:35 > 0:52:37ALL: Thanks, Nina. Bye!
0:52:37 > 0:52:39Bye!
0:52:42 > 0:52:46If you want to find out more about the science all around us,
0:52:46 > 0:52:50go to the Nina section on the Cbeebies website. Have fun!
0:52:50 > 0:52:52- Heart's beating.- Lung's breathing.
0:52:52 > 0:52:55- Finger's feeling.- Mouth's eating!
0:52:55 > 0:52:57And don't forget your brain!
0:52:57 > 0:53:00# Brilliant bodies, brilliant bodies
0:53:00 > 0:53:02# Inside and ou-ou-out
0:53:02 > 0:53:05# Brilliant bodies, brilliant bodies
0:53:05 > 0:53:07# Come on, let's find out about
0:53:07 > 0:53:10# Handy hands and bendy knees
0:53:10 > 0:53:13# Stretchy backs And noses that sneeze
0:53:13 > 0:53:15# We all have brilliant bodies
0:53:15 > 0:53:17# Brilliant bodies!
0:53:17 > 0:53:20# Every part has a job to do
0:53:20 > 0:53:23# Even scabs and earwax too
0:53:23 > 0:53:25# We all have brilliant bodies
0:53:25 > 0:53:27# Brilliant bodies!
0:53:27 > 0:53:31# Brilliant bodies, brilliant bodies
0:53:31 > 0:53:33# Lashes to protect our eyes
0:53:33 > 0:53:36# Brilliant bodies, brilliant bodies
0:53:36 > 0:53:39# And don't forget to exercise. #
0:53:39 > 0:53:42I really enjoyed myself today.
0:53:42 > 0:53:46The minty toothpaste smell reminded me of Nina brushing her teeth.
0:53:46 > 0:53:48It's been a marvellous day.
0:53:48 > 0:53:50I remember feeling the hard, metal bell.
0:53:50 > 0:53:54Ahh, it's been such a great day, man!
0:53:54 > 0:53:58I won't forget those footprints. That looked so much fun.
0:53:58 > 0:54:00And remember, everyone's body is different,
0:54:00 > 0:54:04but they're all brilliant. See you again soon, bye!
0:54:04 > 0:54:06ALL: Bye!