0:00:05 > 0:00:08# If you've got a question And you don't know where to go
0:00:08 > 0:00:11# Ask Nina for some help Cos she's got a science show
0:00:11 > 0:00:15# She makes sense of our senses By helping all her fans
0:00:15 > 0:00:17# By doing her experiments With potions and bangs. #
0:00:17 > 0:00:19Touch your tongue!
0:00:19 > 0:00:21Fingers!
0:00:21 > 0:00:23Eyes! Ears! Nose!
0:00:23 > 0:00:26# Every day we use our senses
0:00:26 > 0:00:30# Wherever we may go. #
0:00:30 > 0:00:31Tongue!
0:00:31 > 0:00:33Fingers!
0:00:33 > 0:00:36Eyes! Ears! Nose!
0:00:36 > 0:00:41# Nina and the Neurons Find out what you need to know
0:00:41 > 0:00:44# Luke helps us with our eyes And Felix with our touch
0:00:44 > 0:00:47# Ollie sniffs out smells Belle hears so much
0:00:47 > 0:00:50# Bud is Ollie's brother He helps us with our taste
0:00:50 > 0:00:53# They're all Neurons And they're coming to your place. #
0:00:53 > 0:00:55Touch your tongue!
0:00:55 > 0:00:56Fingers!
0:00:56 > 0:00:59Eyes! Ears! Nose!
0:00:59 > 0:01:05# Nina and the Neurons Find out what you need to know
0:01:05 > 0:01:07# Oh, yeah! #
0:01:11 > 0:01:16Oh, hi, everyone. I hope you can hear me OK, I've got a sore throat.
0:01:16 > 0:01:20You see, during my show sometimes I have to shout really loud,
0:01:20 > 0:01:23so that people at the back can hear me.
0:01:23 > 0:01:26I have a solution - microphone and speaker.
0:01:27 > 0:01:29CAN YOU HEAR ME NOW?
0:01:29 > 0:01:32Oh, oh, goodness that was loud.
0:01:32 > 0:01:34I'm really sorry.
0:01:34 > 0:01:36Hello? Is that better?
0:01:36 > 0:01:38Sorry about that.
0:01:39 > 0:01:44I've even decided that my show can be about how this speaker works.
0:01:44 > 0:01:48I have a plate here with some cake decorations on it.
0:01:48 > 0:01:51Oh, and there's a piece of cake as well.
0:01:51 > 0:01:52Mmm...
0:01:53 > 0:01:58So, I'll pop this plate onto the speaker to see what happens.
0:01:58 > 0:02:01And when I speak into the microphone,
0:02:01 > 0:02:05you can see the decorations JUMP UP AND DOWN!
0:02:05 > 0:02:08JUMP, JUMP, JUMP!
0:02:08 > 0:02:13So, the sound coming from the speaker makes the speaker wobble
0:02:13 > 0:02:16and that's why the decorations jump up and down.
0:02:16 > 0:02:20Now, let's see what happens if we make the sound
0:02:20 > 0:02:25even LOUDER!! AAAAAAH!
0:02:25 > 0:02:28Did you see how high they jumped that time?
0:02:28 > 0:02:31That's because the louder the sound from the speaker,
0:02:31 > 0:02:34the bigger the wobble, hee-hee.
0:02:37 > 0:02:41- Thank you very much, everyone. Have a lovely day.- ALL: Bye-bye.- Bye.
0:02:41 > 0:02:43ALARM BLEEPS
0:02:43 > 0:02:47I hear a beep. I see a flash. I wonder what they're going to ask?
0:02:51 > 0:02:55Hi, Nina. I'm Maddie. We keep sleeping in.
0:02:55 > 0:02:58How can I make my daddy hear the alarm clock?
0:02:58 > 0:03:01There's nothing worse than sleeping in.
0:03:01 > 0:03:04You rush around trying to get out on time.
0:03:04 > 0:03:06It's a terrible way to start the day.
0:03:06 > 0:03:08Of course I'll help you. Bye!
0:03:08 > 0:03:12I think we're going to need some help to answer this one.
0:03:12 > 0:03:16I know just who to ask. OK, Neurons, time to get to work.
0:03:31 > 0:03:33ALL: Neurons at the ready, Nina!
0:03:33 > 0:03:36OK, guys, Maddie's question is,
0:03:36 > 0:03:38"How can I make my dad hear his alarm clock?"
0:03:38 > 0:03:43Which Neuron do you think will be able to help us find the answer?
0:03:43 > 0:03:47ALL: Me! Me! Me! Me! Me!
0:03:47 > 0:03:49Will it be Fabulous Felix?
0:03:49 > 0:03:53I can help so very much if you need the sense of touch.
0:03:53 > 0:03:55Will it be Beautiful Belle?
0:03:55 > 0:03:59I sent messages brain to ear, if there's a sound I'll help you hear.
0:03:59 > 0:04:01Will it be Lovely Luke?
0:04:01 > 0:04:04For looking and seeing, day or night,
0:04:04 > 0:04:06I'll help you with your sense of sight.
0:04:06 > 0:04:08Will it be Awesome Ollie?
0:04:08 > 0:04:11If it's pongy or whiffy but you can't tell,
0:04:11 > 0:04:13my messages help your sense of smell.
0:04:13 > 0:04:15Or will it be Baby Bud?
0:04:15 > 0:04:20Sour, salty, bitter or sweet, I'm your taste buddy whenever you eat.
0:04:23 > 0:04:27- Yes!- It's Belle! - CHEERING
0:04:27 > 0:04:31# Go, Belle! Go, Belle! Go, Belle! Go, Belle! Go, Belle!
0:04:31 > 0:04:34# Go, Belle! Go, Belle! #
0:04:34 > 0:04:36Brilliant, I'm all ears, Nina.
0:04:36 > 0:04:39The question is about what we hear.
0:04:39 > 0:04:44So we need Belle, the hearing Neuron to help us work this one out.
0:04:47 > 0:04:48OK, then...
0:04:48 > 0:04:51Let's go!
0:05:13 > 0:05:16Meet Maddie, her sisters Florence and Juliet,
0:05:16 > 0:05:19brother Reuben and their mum and dad.
0:05:19 > 0:05:22Today, this regular family from Helensburgh are...
0:05:23 > 0:05:28The Experimenters!
0:05:31 > 0:05:34- Hi, Nina.- Hi, Maddie. How are you? - Fine.
0:05:34 > 0:05:38I'm here to help you solve the problem about waking up.
0:05:38 > 0:05:42- The first thing we should do is have a listen to this alarm clock.- OK.
0:05:42 > 0:05:44Thank you.
0:05:44 > 0:05:46ALARM RINGS
0:05:46 > 0:05:51I'm surprised Maddie's dad sleeps through that alarm, it's loud.
0:05:51 > 0:05:53Well, at least we know it works.
0:05:53 > 0:05:58Can you tell me how the clock is making that sound?
0:05:58 > 0:06:02You see these two bells and that little hammer?
0:06:02 > 0:06:05The hammer bangs against the bells so it makes the sound.
0:06:05 > 0:06:08I see. Well, I think it's quite loud.
0:06:08 > 0:06:11It's not loud enough to wake up my dad.
0:06:11 > 0:06:14So we have to find a sound that's louder.
0:06:14 > 0:06:19Maybe we should do a competition with the rest of your family.
0:06:19 > 0:06:21Who can find the loudest sound?
0:06:24 > 0:06:27- Ready, Belle? - BEEP BEEP BEEP
0:06:27 > 0:06:32Oh, it's my big moment. Standing by, ready to send lots of messages.
0:06:33 > 0:06:36This is the perfect place to start.
0:06:36 > 0:06:40Now, what can we see around here we can use to make a sound?
0:06:40 > 0:06:43- I know. Pebbles!- Excellent idea.
0:06:43 > 0:06:48Pebbles make a great noise when you crunch your feet on them.
0:06:48 > 0:06:52And...we could also use them when we throw them in the water
0:06:52 > 0:06:55and listen to hear what sound it makes.
0:06:55 > 0:06:57So, let's find some pebbles.
0:07:00 > 0:07:02There are lots of different pebbles.
0:07:02 > 0:07:07I wonder if they'll all make the same noise when they hit the water?
0:07:07 > 0:07:10I wonder if they will all make a big splash?
0:07:10 > 0:07:12I hope we're not going to get wet.
0:07:12 > 0:07:15Why don't you go first, Flo?
0:07:16 > 0:07:20- SPLASH! - Brilliant, that was a big noise.
0:07:20 > 0:07:24That big pebble made a really BIG splash!
0:07:24 > 0:07:27I've got a nice little one. Let's hear what sound this makes.
0:07:27 > 0:07:29PLOP
0:07:29 > 0:07:32The splash from the small pebble was much quieter.
0:07:32 > 0:07:35So what did you notice there?
0:07:35 > 0:07:39When you throw a big pebble, it makes a big sound.
0:07:39 > 0:07:43And when you throw a small pebble it makes a small sound.
0:07:43 > 0:07:46When you throw a small pebble, it makes small waves.
0:07:46 > 0:07:49But a big pebble makes big waves.
0:07:49 > 0:07:53The same thing happens with sounds. Sounds are like waves.
0:07:53 > 0:07:57We hear them through the air when they get to our ears.
0:07:57 > 0:08:01So, small pebble, small waves, small quiet sound.
0:08:01 > 0:08:05Big pebble, big waves, big large sound.
0:08:05 > 0:08:08I wonder what else we can find to make some sounds?
0:08:08 > 0:08:10CHINK CHINK CHINK
0:08:10 > 0:08:11SLAP SLAP SLAP
0:08:11 > 0:08:15I'm loving this experiment! It's good and noisy.
0:08:15 > 0:08:18Everyone is finding lots of really LOUD sounds!
0:08:18 > 0:08:23Those chains make a great loud clang because they're metal.
0:08:23 > 0:08:25I think you're right, Ollie.
0:08:25 > 0:08:28This climbing frame's metal and it sounds loud too.
0:08:28 > 0:08:31I don't know who's won our competition.
0:08:31 > 0:08:33Everyone has found some loud sounds.
0:08:33 > 0:08:37Until now. That's the first quiet sound we've had.
0:08:37 > 0:08:40The rubbery mats under the swing are too soft to be noisy.
0:08:43 > 0:08:47Depending on where you live, you'll be surrounded by different sounds.
0:08:47 > 0:08:49I certainly am here.
0:08:49 > 0:08:52Right, Neurons, how about a quiz? Anyone up for it?
0:08:52 > 0:08:56ALL: Me! Me! Me! Me! Me!
0:08:56 > 0:09:00OK, today's question is, "What makes the loudest sound?"
0:09:00 > 0:09:03Is it number one - a speedboat...
0:09:03 > 0:09:05WHAZZOOM!
0:09:05 > 0:09:09Or is number two - a crying baby noisier?
0:09:09 > 0:09:10SQUALLING
0:09:10 > 0:09:14Or is it number three - a pop concert?
0:09:14 > 0:09:17ROCK MUSIC BLARES
0:09:18 > 0:09:19NINA LAUGHS
0:09:19 > 0:09:23Or is it number four - a rocket launch? Aaaaaah!
0:09:23 > 0:09:25DEEP RUMBLING
0:09:25 > 0:09:27Or perhaps the sound of a scooter?
0:09:27 > 0:09:29SWOOSH
0:09:29 > 0:09:32What do you think, Neurons? What's the loudest?
0:09:32 > 0:09:38I feel I know the answer here. Number two would be my guess.
0:09:38 > 0:09:40Now listen up, I'll tell you more.
0:09:40 > 0:09:43I'm sure the answer's number four.
0:09:43 > 0:09:46Which answer's right, now let me see.
0:09:46 > 0:09:48I'm going to go for number three.
0:09:48 > 0:09:51I think I've sniffed the answer out.
0:09:51 > 0:09:53It's number five without a doubt.
0:09:53 > 0:09:58Number one looks tasty to me. Nina, who will the winner be?
0:09:58 > 0:10:00Well, you can't all be right.
0:10:00 > 0:10:03Would you like to know the answer?
0:10:03 > 0:10:05It's number four - a rocket launch.
0:10:05 > 0:10:07So, well done, Belle.
0:10:07 > 0:10:10We measure sound in decibels.
0:10:10 > 0:10:13Someone talking is about 60 decibels
0:10:13 > 0:10:16but a rocket launch can be 200 decibels.
0:10:16 > 0:10:20That's louder than almost anything you can think of.
0:10:20 > 0:10:23And the sound is loudest at the base of the rocket
0:10:23 > 0:10:27where it echoes off the ground making it even louder!
0:10:27 > 0:10:29Anyway, Neurons, enough rockets.
0:10:29 > 0:10:34Let's hot tail it back to Maddie and see what else she's discovered.
0:10:36 > 0:10:38TAP-TAP TAP-TAP TAP-TAP
0:10:38 > 0:10:43- So, you've been hitting things, haven't you, Maddie?- Yeah.
0:10:43 > 0:10:47- What did you find was the quietest? - When I was at the swings...
0:10:47 > 0:10:51- and I was hitting on the ground. - Why do you think that was quiet?
0:10:51 > 0:10:56- Because it was squashy and soft. - Right.
0:10:56 > 0:10:59What was the loudest noise?
0:10:59 > 0:11:05When I was hitting the chains on the swings.
0:11:05 > 0:11:12And when we were throwing the big stones in the water.
0:11:12 > 0:11:17That's really interesting. I think we've nearly answered your question.
0:11:17 > 0:11:21You asked, "How can I make my dad hear his alarm clock?"
0:11:21 > 0:11:25And we decided we need to find something to make a louder sound.
0:11:25 > 0:11:30We found the loudest sounds came from big objects like the stones,
0:11:30 > 0:11:33and hard, like the chains or the metal.
0:11:33 > 0:11:39The bells on the alarm are already hard but they're not very big.
0:11:39 > 0:11:43If we can use something bigger for our alarm bells,
0:11:43 > 0:11:47it'll make a louder sound - which will surely wake your dad.
0:11:47 > 0:11:51- We should go back to your house and see what we can do.- OK.
0:12:01 > 0:12:04Perfect. Your dad's dozed off.
0:12:04 > 0:12:06The alarm is due to go off!
0:12:06 > 0:12:11So the hammer will hit the bells and the bells will hit the saucepans
0:12:11 > 0:12:12which are made of?
0:12:12 > 0:12:15- Hard metal.- Exactly. And they're also quite big.
0:12:15 > 0:12:18So the sound should be really loud.
0:12:18 > 0:12:20Surely enough to wake up your dad.
0:12:20 > 0:12:23ALARM BLARES OUT
0:12:26 > 0:12:28Ho-ho, that works perfectly!
0:12:28 > 0:12:33There's no chance your dad will ever sleep through that again.
0:12:52 > 0:12:55# It's been a busy, busy day
0:12:55 > 0:12:58# Questions answered Experiments done
0:12:58 > 0:13:01# We've used our senses in many ways
0:13:01 > 0:13:04# Tell me, Neurons What have you done today? #
0:13:04 > 0:13:07I definitely worked the hardest today.
0:13:07 > 0:13:13With all that clattering and clanging that was going on.
0:13:13 > 0:13:15Yeah, I was pretty busy!
0:13:15 > 0:13:20When everyone was looking for objects to make sounds with.
0:13:20 > 0:13:22SPLASH!
0:13:22 > 0:13:24I was working hard too, you know.
0:13:24 > 0:13:26You need your sense of touch to feel
0:13:26 > 0:13:29if what you're hitting is hard or soft.
0:13:29 > 0:13:33Well, we've had a bit of an easy day, haven't we, Bud?
0:13:33 > 0:13:36Yeah, but I've still had a fabby time!
0:13:43 > 0:13:46Well, that was great fun.
0:13:46 > 0:13:49I hope you've had a sensational time too. Bye!
0:13:49 > 0:13:52ALL: Bye!