0:00:03 > 0:00:05# There are lots of things
0:00:05 > 0:00:07# All around us
0:00:07 > 0:00:09# Exciting things
0:00:09 > 0:00:10# That surround us
0:00:10 > 0:00:12# But how does it work?
0:00:12 > 0:00:14# Do you know?
0:00:14 > 0:00:15# How was it made?
0:00:15 > 0:00:17# Do you know?
0:00:17 > 0:00:19# Things that go up
0:00:19 > 0:00:20# Things that go down
0:00:20 > 0:00:22# Things that go pop
0:00:22 > 0:00:23# Things that go round
0:00:23 > 0:00:25# With special cameras
0:00:25 > 0:00:27# To show you inside
0:00:27 > 0:00:30# It's going to be a big surprise!
0:00:30 > 0:00:32# But how does it work?
0:00:32 > 0:00:34# Do you know?
0:00:34 > 0:00:35# How was it made?
0:00:35 > 0:00:36# Do you know?
0:00:37 > 0:00:38# Do you know?
0:00:38 > 0:00:40# Let's find out! #
0:00:42 > 0:00:43Hello! I'm Maddie.
0:00:43 > 0:00:45And today, I'm at home.
0:00:45 > 0:00:47And I've got some jobs to do.
0:00:47 > 0:00:51Luckily, this kitchen has a few gadgets to help me out.
0:00:51 > 0:00:53And this is the first one.
0:00:54 > 0:00:58It might look like a cupboard, but inside...
0:00:58 > 0:00:59it's a dishwasher!
0:00:59 > 0:01:02You may have one just like this at home.
0:01:03 > 0:01:05Dishwashers are really helpful,
0:01:05 > 0:01:09because they clean all your dishes after you've had lunch.
0:01:09 > 0:01:12Just look how clean and sparkly the dishes are.
0:01:13 > 0:01:17But what I want to know is HOW do they get clean?
0:01:21 > 0:01:25How does a dishwasher turn a dirty plate like this
0:01:25 > 0:01:29into a nice, clean, sparkly one like this?
0:01:29 > 0:01:31Do you know how a dishwasher works?
0:01:31 > 0:01:32Let's find out.
0:01:35 > 0:01:37How does it work?
0:01:38 > 0:01:40A dishwasher.
0:01:41 > 0:01:43To see what goes on inside,
0:01:43 > 0:01:46first we need to get all the clean dishes out.
0:01:50 > 0:01:53There we go! Now the dishwasher's empty,
0:01:53 > 0:01:56come and get a closer look at what's inside.
0:01:56 > 0:01:59Inside the door is a secret space.
0:02:00 > 0:02:02It's the soap dispenser.
0:02:02 > 0:02:06Just like you use soap to wash your hands,
0:02:06 > 0:02:09the dishes need soap to get clean, too.
0:02:09 > 0:02:13And this is where your soap tablet, or liquid soap goes.
0:02:15 > 0:02:18But what do you think we need to mix with the soap
0:02:18 > 0:02:20to get the dishes clean?
0:02:21 > 0:02:22Yes, you're right!
0:02:22 > 0:02:24It's water.
0:02:24 > 0:02:27But how does the water get inside?
0:02:32 > 0:02:36Water is pushed along this pipe here, into this.
0:02:36 > 0:02:37It's called a spray arm.
0:02:39 > 0:02:43And there's one at the bottom, and one at the top.
0:02:46 > 0:02:49It's these little holes here all the way along
0:02:49 > 0:02:51that spray out the water.
0:02:51 > 0:02:54It's a bit like a big, spinning shower.
0:02:55 > 0:02:58Let's discover how this dishwasher works.
0:03:00 > 0:03:03When the dishwasher is full of dirty pots and pans
0:03:03 > 0:03:04and the door is closed,
0:03:04 > 0:03:06we press the Start button,
0:03:06 > 0:03:09and machinery inside springs into action.
0:03:11 > 0:03:13First, water starts pouring in
0:03:13 > 0:03:15through a little spout at the bottom.
0:03:15 > 0:03:18To get the dishes nice and clean,
0:03:18 > 0:03:19the water needs to be hot.
0:03:19 > 0:03:21So it's heated up by this.
0:03:21 > 0:03:24It's called the heating element,
0:03:24 > 0:03:25and as it gets hot,
0:03:25 > 0:03:28all the water around it gets hot, too.
0:03:28 > 0:03:29Then it's time for some soap.
0:03:29 > 0:03:31CLUNK
0:03:31 > 0:03:33You might hear that clunk noise
0:03:33 > 0:03:37if you listen really carefully outside a dishwasher.
0:03:37 > 0:03:39The soap mixes in with the water,
0:03:39 > 0:03:41and then it's pushed through a pipe
0:03:41 > 0:03:43to the spray arms.
0:03:43 > 0:03:47As the water is sprayed at the dishes really fast,
0:03:47 > 0:03:50all the bits of food are washed off.
0:03:51 > 0:03:54The dirty water is drained away,
0:03:54 > 0:03:57and fresh water comes in to give everything a good rinse.
0:03:59 > 0:04:02Like washing shampoo out of your hair!
0:04:03 > 0:04:05Once all the water has gone again,
0:04:05 > 0:04:07the clean dishes are dried with hot air.
0:04:09 > 0:04:10I don't know about you,
0:04:10 > 0:04:13but I want to see all of that happening for myself.
0:04:13 > 0:04:17It would be very dangerous to climb inside or put our hands in.
0:04:17 > 0:04:21But I've got a way to see what happens inside the dishwasher
0:04:21 > 0:04:23when the dishes are being washed.
0:04:23 > 0:04:26This is my special camera,
0:04:26 > 0:04:28and it's waterproof,
0:04:28 > 0:04:30so it won't get damaged.
0:04:31 > 0:04:33I'm going to put it in the dishwasher.
0:04:33 > 0:04:36Remember, this is a special camera,
0:04:36 > 0:04:38you mustn't do this yourself.
0:04:38 > 0:04:40I've saved us a couple of dirty dishes
0:04:40 > 0:04:41just for this.
0:04:41 > 0:04:44Urgh, look at all that tomato sauce!
0:04:48 > 0:04:50Let's pop the plates in the dishwasher.
0:04:51 > 0:04:54And check the soap's in the dispenser.
0:04:55 > 0:04:56There it is.
0:04:57 > 0:04:58Are you ready?
0:04:58 > 0:04:59Let's go!
0:05:03 > 0:05:06Now the heating element will be making the water hot.
0:05:07 > 0:05:09CLUNK There goes the soap!
0:05:12 > 0:05:14And here comes the water.
0:05:14 > 0:05:16SPLASHING
0:05:16 > 0:05:19Listen! Can you hear it all sloshing about?
0:05:19 > 0:05:21LOTS OF SPLASHING
0:05:22 > 0:05:24That sounds like a lot of water!
0:05:26 > 0:05:29Can you see the spray arms spinning?
0:05:30 > 0:05:34Let's hope the water gets rid of all that tomato sauce!
0:05:37 > 0:05:39It looks like it's working.
0:05:40 > 0:05:43And now all the water is draining away,
0:05:43 > 0:05:45so that the dishes can be dried.
0:05:48 > 0:05:51Wow! Two clean, sparkly dishes!
0:05:51 > 0:05:53Clever dishwasher.
0:05:53 > 0:05:56And now you know what happens inside when the door is closed.
0:05:57 > 0:06:01I loved seeing inside the dishwasher with my special camera.
0:06:01 > 0:06:03What was your favourite bit?
0:06:05 > 0:06:07Can you remember the name of the parts
0:06:07 > 0:06:10that spin around to spray the water about?
0:06:11 > 0:06:14That's right, they're called the spray arms.
0:06:15 > 0:06:18Did you hear all the water spraying around?
0:06:18 > 0:06:20SLOSHING
0:06:20 > 0:06:23SPLASHING
0:06:23 > 0:06:25That sounds like a lot of water!
0:06:26 > 0:06:28And did you see the compartment
0:06:28 > 0:06:31where the soap went into the dishwasher
0:06:31 > 0:06:33to wash those dirty dishes?
0:06:42 > 0:06:45I'm going to have a lovely cup of tea
0:06:45 > 0:06:47with this clean, sparkly cup.
0:06:52 > 0:06:54Apart from my lovely cup of tea,
0:06:54 > 0:06:57what else am I using right now?
0:06:58 > 0:07:00It's not the teapot.
0:07:00 > 0:07:02It's the table!
0:07:02 > 0:07:05Tables are really useful, aren't they?
0:07:05 > 0:07:08They come in all sorts of different shapes and sizes.
0:07:08 > 0:07:10You can eat your lunch at a table.
0:07:10 > 0:07:12Do a drawing at a table.
0:07:12 > 0:07:16Lots of tables, just like this one, are made from wood.
0:07:16 > 0:07:20But do you know how a table is made?
0:07:20 > 0:07:22Let's find out.
0:07:22 > 0:07:23How is it made?
0:07:23 > 0:07:25A table.
0:07:27 > 0:07:28To make a wooden table,
0:07:28 > 0:07:32you need a big tree. And you find those in...
0:07:32 > 0:07:33a forest!
0:07:35 > 0:07:38All wood comes from trees.
0:07:41 > 0:07:43This machinery is cutting the trees down
0:07:43 > 0:07:46so the wood can be used to make things.
0:07:46 > 0:07:48WOOD CRACKING
0:07:48 > 0:07:50Wow.
0:07:50 > 0:07:52SAW BUZZES
0:07:59 > 0:08:01These trees are about a year old.
0:08:03 > 0:08:05This one is nearly five,
0:08:05 > 0:08:07and look, it's bigger than me!
0:08:07 > 0:08:08But finally,
0:08:08 > 0:08:10they'll grow to be this big!
0:08:11 > 0:08:13This is a special forest,
0:08:13 > 0:08:15and every time a tree is cut down,
0:08:15 > 0:08:18a new one is grown in its place.
0:08:18 > 0:08:21That way, we'll always have lots of wood to make new things,
0:08:21 > 0:08:23like a wooden table.
0:08:27 > 0:08:29And here is a busy factory,
0:08:29 > 0:08:32where these furniture makers turn wood into
0:08:32 > 0:08:34brilliant things we can all use...
0:08:35 > 0:08:38..like a front door... BELL RINGS
0:08:38 > 0:08:40a stool you can sit on...
0:08:40 > 0:08:43or a toy you can play with.
0:08:43 > 0:08:47We're going to see how a table just like this one in the drawing
0:08:47 > 0:08:48is going to be made.
0:08:49 > 0:08:54First, the furniture makers pick the bits of wood they're going to use.
0:08:54 > 0:08:58And then the wood needs to be cut so it's the right size and shape.
0:08:58 > 0:09:01And for that, we need to use a special cutter.
0:09:01 > 0:09:03It's called a table saw.
0:09:04 > 0:09:06But it's a bit noisy,
0:09:06 > 0:09:08so I'm going to pop on my ear protectors.
0:09:09 > 0:09:12Workshops and tools can be very dangerous,
0:09:12 > 0:09:16so you should never go near them without a grown-up.
0:09:27 > 0:09:30Wow! Look how quickly the saw cuts through the wood!
0:09:37 > 0:09:39The wood is now cut to the right size,
0:09:39 > 0:09:42but can you see it's all rough?
0:09:43 > 0:09:47So the furniture makers are going to make it nice and smooth.
0:09:52 > 0:09:56Dewell is going to use this special machine called a plane.
0:09:56 > 0:10:00But it's not like an aeroplane you'd see up in the sky.
0:10:00 > 0:10:02This plane has a very sharp edge
0:10:02 > 0:10:05that peels off the rough parts of the wood.
0:10:08 > 0:10:11When the bottom of the wood slides across the plane,
0:10:11 > 0:10:13the rough bits are cut off.
0:10:15 > 0:10:17Can you see all the bits of wood flying off?
0:10:21 > 0:10:24This is my special slow motion camera.
0:10:24 > 0:10:28Let's slow things down and really see what's going on, shall we?
0:10:35 > 0:10:38The plane works a bit like a potato peeler.
0:10:38 > 0:10:41As it moves across the surface of the wood,
0:10:41 > 0:10:43thin slices peel off.
0:10:46 > 0:10:49Can you see all that wood being shaved off?
0:10:52 > 0:10:54Look at all these wooden curls!
0:10:54 > 0:10:55Aren't they great?
0:10:55 > 0:11:00And look, you can see how much smoother and lighter the wood is,
0:11:00 > 0:11:02now the top surface has gone.
0:11:02 > 0:11:05Now we have everything we need to make the table.
0:11:05 > 0:11:08These three pieces of wood are going to be stuck together
0:11:08 > 0:11:10to become our table top.
0:11:10 > 0:11:13And these four pieces will become the table legs.
0:11:13 > 0:11:17But how do we attach the table to the legs?
0:11:17 > 0:11:20Well, we need to make a frame.
0:11:21 > 0:11:25Can you see this piece of wood has a little bit sticking out the end?
0:11:25 > 0:11:28And then this piece has a hole cut in the middle?
0:11:28 > 0:11:31Watch what happens when I put them together.
0:11:33 > 0:11:34It's like a jigsaw!
0:11:34 > 0:11:37The two pieces have been cut perfectly
0:11:37 > 0:11:40so they lock together into something called a joint.
0:11:45 > 0:11:49Tom attaches all four legs by the joints to make the table frame.
0:11:51 > 0:11:54He glues the table top together...
0:11:57 > 0:11:59..and places it on the frame.
0:12:02 > 0:12:04Now this looks like a table,
0:12:04 > 0:12:07but it needs one last thing to finish it off.
0:12:07 > 0:12:09Do you know what that is?
0:12:11 > 0:12:15Dewell paints the sides of the table with a nice shiny colour,
0:12:15 > 0:12:21and for the top, uses a special kind of paint called a varnish,
0:12:21 > 0:12:23which helps protect the wood.
0:12:26 > 0:12:27Tah-dah!
0:12:27 > 0:12:30It's ready, and doesn't it look amazing?
0:12:30 > 0:12:33To think this started off as wood from a tree,
0:12:33 > 0:12:35and now it's a beautiful table.
0:12:37 > 0:12:41I loved seeing how the old wood was turned into a table.
0:12:41 > 0:12:45What was your favourite part about seeing how a table was made?
0:12:45 > 0:12:49Do you remember the name of the machine used to smooth the wood?
0:12:49 > 0:12:51That's right, it's a plane.
0:12:52 > 0:12:53HIGH WHOOSHING
0:12:53 > 0:12:55Did you like the sound of the saw?
0:12:55 > 0:12:57SAW GROWLS
0:12:58 > 0:13:00It was very noisy!
0:13:01 > 0:13:06And did you see the way the varnish was painted on to make it shiny?
0:13:14 > 0:13:17So, the next time you eat your lunch,
0:13:17 > 0:13:20play a game or paint a picture at a wooden table,
0:13:20 > 0:13:22just think of the trees that wood came from,
0:13:22 > 0:13:23once upon a time.
0:13:23 > 0:13:27And now you know how the soapy water is sprayed around
0:13:27 > 0:13:30inside a dishwasher to clean those dirty dishes.
0:13:30 > 0:13:31Talking of which,
0:13:31 > 0:13:34I'd better put my dirty cup in the dishwasher.
0:13:36 > 0:13:38See you next time!
0:13:42 > 0:13:44# There are lots of things
0:13:44 > 0:13:45# All around us
0:13:45 > 0:13:47# Exciting things
0:13:47 > 0:13:48# That surround us
0:13:48 > 0:13:50# But how does it work?
0:13:50 > 0:13:52# Do you know?
0:13:52 > 0:13:54# How was it made?
0:13:54 > 0:13:55# Do you know?
0:13:55 > 0:13:58- # Do you know? - Let's find out!- #