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 > 0:00:14# She makes sense of her senses While helping all her fans
0:00:14 > 0:00:17# By doing her experiments with potions and with bangs
0:00:17 > 0:00:19- # Touch your tongue - Tongue!
0:00:19 > 0:00:21- # Fingers - Fingers!
0:00:21 > 0:00:23- # Eyes.- Eyes! - Ears.- Ears!- Nose.- Nose!
0:00:23 > 0:00:30# Every day we use our senses Wherever we may go
0:00:30 > 0:00:31- # Tongue - Tongue!
0:00:31 > 0:00:32- # Fingers - Fingers!
0:00:32 > 0:00:36- # Eyes.- Eyes! - Ears.- Ears!- Nose.- Nose!
0:00:36 > 0:00:39# Nina and the Neurons find out what you need to know
0:00:39 > 0:00:41# Nina and the Neurons find out what you need to know
0:00:41 > 0:00:44# Luke, he helps us with our eyes and Felix with our touch
0:00:44 > 0:00:47# Ollie sniffs out smells And Belle, she 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 Nina's little neurons And they're coming to your place!
0:00:53 > 0:00:55- # Touch your tongue - Tongue!
0:00:55 > 0:00:56- # Fingers - Fingers!
0:00:56 > 0:01:00- # Eyes.- Eyes! - Ears.- Ears!- Nose.- Nose!
0:01:00 > 0:01:02# Nina and the Neurons find out what you need to know
0:01:02 > 0:01:05# Nina and the Neurons find out what you need to know
0:01:05 > 0:01:07# Oh yeah! #
0:01:07 > 0:01:09Hi, everyone!
0:01:09 > 0:01:10ALL: Hi, Nina!
0:01:10 > 0:01:15Today, we're going to do an exciting experiment with plants.
0:01:15 > 0:01:20In this container are some green plants and they live in water.
0:01:20 > 0:01:22They're called pond weed.
0:01:22 > 0:01:25If we have a closer look at the pond weed,
0:01:25 > 0:01:28we can see tiny bubbles setting on leaves.
0:01:28 > 0:01:31Sometimes those bubbles come off the leaves
0:01:31 > 0:01:33and rise up through the water.
0:01:33 > 0:01:37When these bubbles get to the top of the water,
0:01:37 > 0:01:40they burst and release something special
0:01:40 > 0:01:45- into the top of the test tube. Can you see anything?- ALL: No!
0:01:45 > 0:01:48I can't either, but watch this.
0:01:48 > 0:01:50Now, Derek's going to help me.
0:01:50 > 0:01:53Can you light that for me? Brilliant.
0:01:53 > 0:01:57I'm going to blow this out so it's just glowing
0:01:57 > 0:02:01and then put it into the special invisible stuff in the test tube.
0:02:05 > 0:02:06Oh! Look at that!
0:02:06 > 0:02:08It's relit!
0:02:08 > 0:02:10NINA LAUGHS
0:02:10 > 0:02:14So whatever had collected in the test tube
0:02:14 > 0:02:16has made the splint relight.
0:02:16 > 0:02:20But we still can't see anything in there, can we, guys?
0:02:20 > 0:02:21ALL: No!
0:02:21 > 0:02:24That's because it's a gas.
0:02:24 > 0:02:27Gas is all around us, but we can't see it.
0:02:27 > 0:02:31It's invisible. The only time we can see the gas
0:02:31 > 0:02:35is when it's in the water because it makes bubbles.
0:02:35 > 0:02:38But what is this amazing gas?
0:02:38 > 0:02:43- It's called oxygen. Have you heard of oxygen before?- ALL: Yes!
0:02:43 > 0:02:45That doesn't surprise me at all
0:02:45 > 0:02:49because oxygen's a special gas. We need it to survive.
0:02:49 > 0:02:51Oxygen is really important to us
0:02:51 > 0:02:54because it's what we breathe in and out.
0:02:54 > 0:02:58So, green plants give off oxygen that goes into the air
0:02:58 > 0:03:02and then we and other creatures use it to breathe.
0:03:04 > 0:03:06MACHINE BEEPS
0:03:06 > 0:03:11Oh! I hear a beep, I see a flash. I wonder what they're going to ask?
0:03:15 > 0:03:17Hi, Nina. My name's Shonie.
0:03:17 > 0:03:21I've got a question for you. What are trees for?
0:03:21 > 0:03:24Oh, what a great question, Shonie!
0:03:24 > 0:03:27What are trees for? Now trees look lovely,
0:03:27 > 0:03:32with their green leaves and twisty branches, but what are they for?
0:03:32 > 0:03:37- Thanks, Shonie. I'll see you soon. - See you soon, Nina. Bye.- Bye!
0:03:37 > 0:03:40I'm going to need some help to answer this one
0:03:40 > 0:03:45and I know just who to ask. OK, Neurons. Time to get to work!
0:03:48 > 0:03:50MUSIC PLAYS
0:04:00 > 0:04:02ALL: Neurons at the ready, Nina!
0:04:03 > 0:04:07OK. Today's question is, "What are trees for?"
0:04:07 > 0:04:10Which Neuron will be useful in finding the answer?
0:04:10 > 0:04:14- Me!- Me!- Me!- Me! - Me!
0:04:14 > 0:04:16Will it be...fabulous Felix?
0:04:16 > 0:04:20I can help so very much if you need the sense of touch.
0:04:20 > 0:04:22Will it be beautiful Belle?
0:04:22 > 0:04:25I send messages to brain from ear.
0:04:25 > 0:04:29- If there's a sound, I'll help you hear.- Will it be Luke?
0:04:29 > 0:04:33For looking or seeing day or night, I'll help you with your sight.
0:04:33 > 0:04:35Will it be awesome Ollie?
0:04:35 > 0:04:40If it's pongy, but you can't tell, my messages help your sense of smell.
0:04:40 > 0:04:42Or will it be baby Bud?
0:04:42 > 0:04:47Sour, salty, bitter or sweet, I'm your taste buddy when you eat.
0:04:51 > 0:04:55- It's Luke's.- Yes! - ALL: Go, Luke! Go, Luke! Go, Luke!
0:04:55 > 0:04:59Go, Luke! Go, Luke! Go, Luke! Go, Luke!
0:04:59 > 0:05:01- Go, Luke!- Cool, Nina!
0:05:01 > 0:05:04I'll be looking out to help ya!
0:05:04 > 0:05:08Thanks, Luke. Today's question is, "What are trees for?"
0:05:08 > 0:05:12Trees are things you look at, so Luke's going to be helping us.
0:05:12 > 0:05:16But stand by, Felix. We may need your help, too.
0:05:17 > 0:05:20OK. Let's go.
0:05:39 > 0:05:43'These two will be finding out about trees.
0:05:43 > 0:05:48'Tall, spindly trees, small, twisty trees and wide, leafy trees.
0:05:48 > 0:05:50'So today, for one day only,
0:05:50 > 0:05:53'Shonie and Sam become The Experimenters!'
0:05:55 > 0:05:57BOTH: Hi, Nina!
0:05:57 > 0:06:01Oh, there you guys are! You gave me such a fright!
0:06:01 > 0:06:05So, Shonie, you've asked the question, "What are trees for?"
0:06:05 > 0:06:08Why do you want to know about trees?
0:06:08 > 0:06:11My mum says they're very important.
0:06:11 > 0:06:14You're mum's right. Trees are important,
0:06:14 > 0:06:16but to find out what they're for,
0:06:16 > 0:06:20we need to look closely at trees. So, are you ready?
0:06:20 > 0:06:22- BOTH: YEAH!- Well let's go!
0:06:25 > 0:06:28Right. In order to find out what trees are for,
0:06:28 > 0:06:30we need a closer look at them,
0:06:30 > 0:06:34and for that we're going to use these binoculars.
0:06:34 > 0:06:38- One for you, Shonie.- Thank you. - One for you, Sam.- Whey-hey!
0:06:38 > 0:06:41- Binoculars ready?- Yeah. - Excellent. Let's go!
0:06:41 > 0:06:45Look at all those beautiful trees
0:06:45 > 0:06:47with their big, curvy branches!
0:06:47 > 0:06:50I could watch them all day!
0:06:50 > 0:06:55I love the rustling sound when the wind blows through the leaves.
0:06:55 > 0:06:57And listen...
0:06:57 > 0:06:59Oh! I hear something else, too.
0:06:59 > 0:07:04- Ooh! Ooh, do you hear that? What do you think it is?- Birds, Nina.
0:07:04 > 0:07:07- Yes!- It's coming from up in the tree.
0:07:07 > 0:07:13Whoa! Oh, look! Let's use our binoculars to have a closer look.
0:07:13 > 0:07:14Oh!
0:07:14 > 0:07:16Birds singing!
0:07:16 > 0:07:18What a happy sound!
0:07:18 > 0:07:20Oh, you're right,
0:07:20 > 0:07:25and there's something else in the branches. Can you see what it is?
0:07:25 > 0:07:27A bird's nest, Nina.
0:07:27 > 0:07:29That's right, and can you see
0:07:29 > 0:07:33- what the bird's nest is made of? - Lots of sticks and twigs.
0:07:33 > 0:07:37Exactly! You see, birds are great at recycling, you know.
0:07:37 > 0:07:42They use old bits of twigs, leaves and sticks to build their nests.
0:07:42 > 0:07:45Also, birds build their nests in the trees
0:07:45 > 0:07:50because it provides shelter. Let's keep looking. Let's go this way.
0:07:53 > 0:07:55Look, Nina.
0:07:55 > 0:07:58What's that? Oh, wow!
0:08:00 > 0:08:03Eugh! I'm not very fond of insects.
0:08:03 > 0:08:05They're a bit creepy and crawly.
0:08:05 > 0:08:08Well I love creepy-crawlies! They're cool!
0:08:08 > 0:08:13There are loads of insects living underneath this log.
0:08:13 > 0:08:15There's some woodlice...
0:08:15 > 0:08:17and a centipede.
0:08:19 > 0:08:20So this old log
0:08:20 > 0:08:23even provides a home for some creatures.
0:08:23 > 0:08:28Oh, look! Oh! I can see something else that lives in the trees.
0:08:28 > 0:08:32- Can you see what it is? - A squirrel.- Yeah!
0:08:32 > 0:08:34Squirrels love running up and down trees.
0:08:34 > 0:08:39Some of them even live high in the branches, or even inside the trunk.
0:08:39 > 0:08:42Yay! He's tucking into some food!
0:08:42 > 0:08:46Some trees have food on them that animals like to eat.
0:08:46 > 0:08:48Oh! Mmm!
0:08:48 > 0:08:51Like, tree-flavoured jelly and ice cream?
0:08:51 > 0:08:54Not quite, Bud.
0:08:54 > 0:08:58Squirrels love eating acorns, which are the seeds from oak trees.
0:08:58 > 0:09:03Insects prefer munching on juicy green leaves or wood.
0:09:03 > 0:09:07Sometimes WE eat things from trees. What might that be?
0:09:07 > 0:09:09- Apples.- Pears.- Yeah, that's right.
0:09:09 > 0:09:13Apples, pears and lots of different things.
0:09:13 > 0:09:17Shonie, you asked, "What are trees for?" So far we've found out
0:09:17 > 0:09:22that they're lovely to look, they provide shelter, a home and food
0:09:22 > 0:09:25for lots of animals and even us.
0:09:25 > 0:09:27So trees are pretty important,
0:09:27 > 0:09:31but there's more to find out, so come on, let's go!
0:09:33 > 0:09:35Whoa!
0:09:35 > 0:09:37Look at that enormous tree trunk!
0:09:37 > 0:09:41That is one very wide tree, Nina.
0:09:41 > 0:09:44Look how wide it is, which means it's really old.
0:09:44 > 0:09:46How, Nina?
0:09:46 > 0:09:50As we get older, we grow upwards and get taller.
0:09:50 > 0:09:55Trees also grow outwards, so every year they get wider and wider.
0:09:55 > 0:09:59I know a fun way to find out just how old this tree is.
0:09:59 > 0:10:01Let's hug it! Let's go round here.
0:10:03 > 0:10:05My hands down there, or up there.
0:10:05 > 0:10:08Ooh! I cannae hardly...
0:10:10 > 0:10:15Even with all of us we still can't stretch all the way round the tree!
0:10:15 > 0:10:19That's because this is a really old tree and they are called
0:10:19 > 0:10:23ancient trees because they've been around for a long time.
0:10:23 > 0:10:28Hundreds, even thousands of years! OK, guys, stop hugging the tree!
0:10:28 > 0:10:34Oh-ho! Now, let's feel the tree's bark. That's the wood on the trunk.
0:10:34 > 0:10:39- So, what does it feel like?- Rough! - There's even bits falling off.
0:10:39 > 0:10:42- There's a hole in the middle. - That's right.
0:10:42 > 0:10:46Some trees are so old the wood in the trunk rots away.
0:10:46 > 0:10:47Insects love it
0:10:47 > 0:10:51because it's much easier for them to burrow through.
0:10:51 > 0:10:53So ancient trees are useful
0:10:53 > 0:10:56because they've got lots of hiding places.
0:10:56 > 0:11:00But there is another reason that trees are very important
0:11:00 > 0:11:05and to find out why, I've got a surprise for you. Let's go!
0:11:06 > 0:11:09I have a tree for you to plant!
0:11:09 > 0:11:12- Oh great.- BOTH: Thanks, Nina!
0:11:12 > 0:11:15Now, grab a shovel and let's get planting!
0:11:21 > 0:11:23This is brilliant fun!
0:11:23 > 0:11:28First there was hugging trees and know there's planting trees!
0:11:28 > 0:11:31Co-ool! Ha!
0:11:31 > 0:11:33It doesn't look much like a tree, though.
0:11:33 > 0:11:38That's because it's a baby tree. They're called saplings.
0:11:38 > 0:11:40Over the years it'll grow and grow
0:11:40 > 0:11:43and one day it'll be a really big tree.
0:11:43 > 0:11:45That's right, Ollie.
0:11:45 > 0:11:49As this sapling gets older, it'll grow bigger and bigger
0:11:49 > 0:11:51until it's as big as these trees.
0:11:51 > 0:11:56And hundreds of years from now it might even be an ancient tree.
0:11:56 > 0:11:58Guys, I think we've done it.
0:11:58 > 0:12:01We've planted our own tree!
0:12:01 > 0:12:05- By doing so, we're helping to protect the environment.- How, Nina?
0:12:05 > 0:12:08Do you see these green leaves?
0:12:08 > 0:12:11Earlier I did an experiment that showed that leaves
0:12:11 > 0:12:14gave off a gas called oxygen.
0:12:14 > 0:12:16Oxygen is a gas that we humans
0:12:16 > 0:12:19and all living things need to breathe.
0:12:19 > 0:12:24The more leaves this tree has the more oxygen it will make.
0:12:24 > 0:12:26I think we've answered your question.
0:12:26 > 0:12:29You wanted to know what trees are for
0:12:29 > 0:12:33and we've found out we have trees for lots of reasons.
0:12:33 > 0:12:36They provide homes and food for animals,
0:12:36 > 0:12:41They're lovely to look at and give off oxygen that we need to breathe.
0:12:41 > 0:12:43- BOTH: Thanks, Nina! - No problem, guys!
0:12:48 > 0:12:51# Help protect our planet
0:12:51 > 0:12:52# Go Eco
0:12:52 > 0:12:53# Go Eco!
0:12:53 > 0:12:57# Walk to school or cycle
0:12:57 > 0:12:58# Go Eco
0:12:58 > 0:13:00# Go Eco!
0:13:00 > 0:13:03# Turn off the tap Switch off the light
0:13:03 > 0:13:06# Recycle what you can
0:13:06 > 0:13:09# Help protect our planet
0:13:09 > 0:13:10# Go Eco
0:13:10 > 0:13:11# Go Eco!
0:13:11 > 0:13:13# Go Eco... #
0:13:13 > 0:13:16I really enjoyed myself today.
0:13:16 > 0:13:19'I love the woody, leafy smell of the forest.
0:13:19 > 0:13:22'Trees smell so lovely and fresh.'
0:13:22 > 0:13:25Oh, I've had a brilliant day!
0:13:25 > 0:13:27'Hearing everyone having fun
0:13:27 > 0:13:31'and all the birds singing. Trees are ace!'
0:13:31 > 0:13:34Ah, it's been such a great day, man!
0:13:34 > 0:13:38'Seeing beautiful trees and different creatures.
0:13:38 > 0:13:40'Trees are pretty amazing things!'
0:13:40 > 0:13:42It's been a marvellous,
0:13:42 > 0:13:46'especially when everyone hugged the ancient tree.
0:13:46 > 0:13:48'That was fabulous!'
0:13:48 > 0:13:50I've had a fabby day!
0:13:50 > 0:13:53'It was great when they planted a new tree!
0:13:53 > 0:13:56'It's only a baby tree now, like me,
0:13:56 > 0:14:00'but it will grow up to be a big tree one day.
0:14:00 > 0:14:03YA-A-AY!
0:14:03 > 0:14:05We've had a sensational time today.
0:14:05 > 0:14:09- I hope you've enjoyed it, too. Bye! - ALL: Bye!
0:14:09 > 0:14:13# Nina and the Neurons
0:14:13 > 0:14:14# Go Eco! #