0:00:06 > 0:00:08What happens when we smash some tomatoes?
0:00:08 > 0:00:10Will Guinea Pig float like a butterfly
0:00:10 > 0:00:13or fall like a sack of spuds on the Ultimate Brain skywalk?
0:00:13 > 0:00:17And just how bad does alien fish stew smell?
0:00:17 > 0:00:19No, it's not another cookery show,
0:00:19 > 0:00:21it's time for Ultimate Brain!
0:00:26 > 0:00:30Ah-ha-ha!
0:00:30 > 0:00:34My name is Dr Brain, and if you hadn't realised that already,
0:00:34 > 0:00:37you should know that David Attenborough is not about
0:00:37 > 0:00:40to make an appearance and give me an ikkle wikkle cuddle.
0:00:40 > 0:00:43No! This is a half-man, half-monkey.
0:00:43 > 0:00:47His goal is simple - he is looking for baffling brilliance,
0:00:47 > 0:00:51cracking cleverness and monumental mega-minds.
0:00:51 > 0:00:54Oh! Oh, oh-ho-ho!
0:00:54 > 0:00:58Too much brain for one dashing monkey scientist!
0:00:58 > 0:01:01This is Ultimate Brain. Giddy-up! Oh, I haven't got a horse.
0:01:01 > 0:01:02I'll have to walk then.
0:01:03 > 0:01:05Let's meet the canny contestants
0:01:05 > 0:01:07hoping they can be experts at experiments.
0:01:07 > 0:01:09First up, glowing in green and playing as a team,
0:01:09 > 0:01:11from Birmingham, it's...
0:01:14 > 0:01:16They're dressed in yellow,
0:01:16 > 0:01:18but they're in no mood to be mellow, from East Sussex...
0:01:22 > 0:01:25And now it's time for our celebrity team.
0:01:25 > 0:01:27In blue, from the X Factor...
0:01:31 > 0:01:35These folks are playing for pride, prestige, erm...
0:01:35 > 0:01:37pretzels or pizza or something.
0:01:37 > 0:01:39No, not pizza! Let's find out who they are.
0:01:39 > 0:01:41First we have the Green Team!
0:01:41 > 0:01:43How are you, Greens?
0:01:43 > 0:01:46- Hello!- Good to meet you. Are you into science?
0:01:46 > 0:01:48- Yes!- Are you good at it?- YES!
0:01:48 > 0:01:50- You've got good brains?- Yes.
0:01:50 > 0:01:53- Yes! You going to win?- YES! - Wow!
0:01:53 > 0:01:55I like your positivity, Greens.
0:01:55 > 0:01:56What's your team name?
0:01:57 > 0:02:00Fantastic! It's the Greens!
0:02:00 > 0:02:02APPLAUSE
0:02:02 > 0:02:04Look who I have here. It's the Yellow Team.
0:02:04 > 0:02:06- Are you good at science?- Yes.
0:02:06 > 0:02:07Good at experiments and things?
0:02:07 > 0:02:10- Definitely.- You've got the right kind of brains for this show?
0:02:10 > 0:02:13- Yes.- You're up for it? - Yes!- You like a challenge?- Yes!
0:02:13 > 0:02:14What's your team name?
0:02:15 > 0:02:19- It's the yellows! - APPLAUSE
0:02:19 > 0:02:22- And now... - X FACTOR THEME PLAYS
0:02:22 > 0:02:24..it's the X Factor!
0:02:26 > 0:02:29And here they are, the Blue Team!
0:02:31 > 0:02:33- Nice to meet you, Blues. How are you?- All right.
0:02:33 > 0:02:36- IRISH ACCENT:- I don't think you're going to do very well.
0:02:36 > 0:02:37Nobody's going to vote for you.
0:02:37 > 0:02:39You're not going to do very well at all.
0:02:39 > 0:02:42- AS SIMON COWELL:- Now, Louis, just shut up...
0:02:42 > 0:02:44- NORMALLY:- So, it's good to see you.
0:02:44 > 0:02:49- You must be exhausted!- Pretty tired. - Yeah, we're not long off tour.
0:02:49 > 0:02:52Done all your tours and all that sort of stuff?
0:02:52 > 0:02:55What did you get up to on the tour? Anything?
0:02:55 > 0:02:58- Well, all right, I'll be honest.- Yes.
0:02:58 > 0:03:01- I got a stinkbomb and I put it under the stage.- Yes?
0:03:01 > 0:03:05And I stamped on it and walked away, so all the artists went up
0:03:05 > 0:03:07and there was a big waft of a stinkbomb.
0:03:07 > 0:03:08How was it for the audience?
0:03:08 > 0:03:11The first four rows really panicked.
0:03:11 > 0:03:14They really thought that someone, you know, let one off,
0:03:14 > 0:03:16- so to say. - You're sure it wasn't your singing?
0:03:16 > 0:03:18- ALL:- Ooh!
0:03:18 > 0:03:21HE SINGS A TUNE
0:03:21 > 0:03:24Here they are. It's good to meet you. What's your team name?
0:03:26 > 0:03:29Only The Stevi on the Ultimate Brain!
0:03:29 > 0:03:32Remember, teams, you'll need to be at your brainy best
0:03:32 > 0:03:35to bring home the honour points so MIND how you go.
0:03:35 > 0:03:37Eh, mind? Mind!
0:03:37 > 0:03:38MIND!
0:03:38 > 0:03:42Cos mind is the brain which... And... Oh, forget it.
0:03:49 > 0:03:53Here we go with the first amazing round.
0:03:53 > 0:03:56These hands have amazing superpowers,
0:03:56 > 0:03:59but they can't bend a mouse's coat hanger back into shape.
0:03:59 > 0:04:01Ah-ha-ha, look at this.
0:04:01 > 0:04:03Look how I bend this with my incredible monkey strength.
0:04:03 > 0:04:05HE STRAINS
0:04:08 > 0:04:10You wouldn't have a go, would you?
0:04:11 > 0:04:13All right, show off!
0:04:15 > 0:04:20But I, Dr Brain, the greatest monkey mind to ever wear spandex to work
0:04:20 > 0:04:23will drop these pieces of nitinol wire -
0:04:23 > 0:04:26wire of different sizes, looks and shapes
0:04:26 > 0:04:29into this bowl of hot water.
0:04:29 > 0:04:31Now, the question is, what will happen to the wire
0:04:31 > 0:04:34when it hits the hot water?!
0:04:34 > 0:04:36Look at the confusion on their faces.
0:04:36 > 0:04:40You have four choices, count them, one, two, three, four.
0:04:40 > 0:04:41Now, listen up, everybody.
0:04:41 > 0:04:44When we release the wires into the hot water,
0:04:44 > 0:04:45will they...
0:04:53 > 0:04:54..to escape the heat?
0:04:57 > 0:04:59Something that you have thought of,
0:04:59 > 0:05:01that I may have missed.
0:05:01 > 0:05:03Ooh! Is that even possible?
0:05:03 > 0:05:06OK, you brilliantly brainy bunch, decide amongst yourselves.
0:05:06 > 0:05:09Your thinking time starts...now!
0:05:12 > 0:05:17So, what will our pieces of special metal do in the hot water, eh?
0:05:17 > 0:05:18Intriguing!
0:05:18 > 0:05:22Four choices here. Consider carefully, teams.
0:05:22 > 0:05:24Have you thought of your answer?
0:05:24 > 0:05:26- ALARM SOUNDS - OK, OK.
0:05:26 > 0:05:27Everyone, that's it, that's it.
0:05:27 > 0:05:30Your thinking time is done.
0:05:30 > 0:05:31Reveal your answers now!
0:05:33 > 0:05:35What have we got? Ah, we have a D...
0:05:35 > 0:05:38- We have D, we have a D, we have a... - BEAT STARTS
0:05:49 > 0:05:51We could be a boy, girl and monkey band, couldn't we?
0:05:51 > 0:05:53Triple D!
0:05:53 > 0:05:56So, we'll go for Greens first. What is your something else?
0:05:56 > 0:05:58Float. We think they're going to float.
0:05:58 > 0:05:59They're going to float.
0:05:59 > 0:06:01Yellows?
0:06:01 > 0:06:03Er, we think it'll bend.
0:06:03 > 0:06:05- Bend?- Bend.
0:06:05 > 0:06:07- Ooh.- Like spaghetti in the water.
0:06:07 > 0:06:10As it goes in the water, it starts to bend.
0:06:10 > 0:06:11Ah. Blues?
0:06:11 > 0:06:13Personally, I think it'll sink,
0:06:13 > 0:06:15- but I'm going with the girls. - I think it'll float.
0:06:15 > 0:06:17I have a feeling it's going to float.
0:06:17 > 0:06:19- Ah...- I think so.- Very interesting.
0:06:19 > 0:06:22Now, when dealing with a hot water experiment,
0:06:22 > 0:06:24you need something very,
0:06:24 > 0:06:27very special to make it a safe experiment.
0:06:27 > 0:06:29- Do we know what that is? - Erm...- An adult?
0:06:29 > 0:06:32An adult. A grown-up, as they're also known.
0:06:32 > 0:06:34- Right, here we go. You ready, everybody?- Yes.
0:06:34 > 0:06:38Let's go it. Let's drop wire into water in the name of science.
0:06:38 > 0:06:39Three, two, one, go!
0:06:43 > 0:06:46Wow... Did you see that?
0:06:46 > 0:06:49Wow, indeed! They've turned into a spring and two paperclips!
0:06:49 > 0:06:51This is because nitinol is a special type of metal -
0:06:51 > 0:06:53a shape memory metal!
0:06:53 > 0:06:56So although you can stretch it out and bend it any way you like
0:06:56 > 0:06:58when it's cold, as soon as it is put into hot water,
0:06:58 > 0:07:00it turns back into its pre-set shape.
0:07:00 > 0:07:02Like the spring and the paperclips.
0:07:02 > 0:07:07Is it magic? Course it's not magic - it's science, folks!
0:07:07 > 0:07:11So, teams, you all said D, which was the right answer,
0:07:11 > 0:07:13and the Yellows, you were sort of closest.
0:07:13 > 0:07:15You were on the right lines with it bending,
0:07:15 > 0:07:18but nobody got the actual, exact right answer,
0:07:18 > 0:07:21which was that it would revert back to its pre-set shape.
0:07:21 > 0:07:24So I'm going to give you all two points.
0:07:24 > 0:07:26- Well done, everybody.- Yay!
0:07:28 > 0:07:31And just to show I'm not fibbing, there they are.
0:07:36 > 0:07:38It's time now to tune your brains...
0:07:40 > 0:07:42..to a different thinking frequency.
0:07:42 > 0:07:44Which is harder to say than it sounds.
0:07:44 > 0:07:46Behold!
0:07:46 > 0:07:49We call this challenge the skywalk.
0:07:49 > 0:07:52Some people are late for school or late for work,
0:07:52 > 0:07:55depending on your age and financial responsibilities.
0:07:55 > 0:07:59So I've created this skywalk to help shorten your journey
0:07:59 > 0:08:02by manoeuvring over obstructive crowds.
0:08:02 > 0:08:06Now, as my skywalk can be adapted to all terrains,
0:08:06 > 0:08:09I made the walkway perilously narrow
0:08:09 > 0:08:13and placed several distractions en route - that's French, you know.
0:08:13 > 0:08:15Some Wellington boots, a bucket,
0:08:15 > 0:08:17my socks and vests on a washing line,
0:08:17 > 0:08:19and a terrible blasting wind machine,
0:08:19 > 0:08:22so that we can always be ready for the unexpected.
0:08:22 > 0:08:24Our teams were given two days,
0:08:24 > 0:08:30and a massive budget of £50 to design their challenge.
0:08:30 > 0:08:33Here, our teams have got to design an invention.
0:08:33 > 0:08:36To get Guinea Pig all the way across the skywalk,
0:08:36 > 0:08:40he must pass the obstacles without falling off.
0:08:40 > 0:08:43They need to think about centre of gravity and balance.
0:08:43 > 0:08:47If they can design a way to lower GP's centre of gravity,
0:08:47 > 0:08:49or to increase his contact with the skywalk,
0:08:49 > 0:08:51then he'll be more balanced
0:08:51 > 0:08:54and, hopefully, make it all the way to the end.
0:08:54 > 0:08:57And here he is...
0:08:57 > 0:09:00Yes, it's our willing walkway wanderer,
0:09:00 > 0:09:03destined to selflessly throw himself head first
0:09:03 > 0:09:06into all of my daring experiments
0:09:06 > 0:09:10and come out miraculously unscathed every time...
0:09:10 > 0:09:13I hope. It's Guinea Pig!
0:09:18 > 0:09:22Ah, hi, Guinea Pig. Are you nervous?
0:09:22 > 0:09:25No? Good! That's the spirit.
0:09:25 > 0:09:27That's what I love about Guinea Pig -
0:09:27 > 0:09:29he's always raring to go!
0:09:29 > 0:09:32I'm not just a guinea pig, I'm a human being too!
0:09:32 > 0:09:33Ah-ha-ha-ha!
0:09:33 > 0:09:35You're more than that, GP.
0:09:35 > 0:09:38# You're a man of steel
0:09:38 > 0:09:41# You're a force of nature... #
0:09:41 > 0:09:45And you're a fool as well. Only joking!
0:09:45 > 0:09:47So, let's see what our teams have come up with,
0:09:47 > 0:09:50and first, this is the Yellow creation.
0:09:50 > 0:09:52What's he got on his feet, then?
0:09:52 > 0:09:55- They are the balance boots. - And what are they made of?
0:09:55 > 0:09:57Wood and Velcro.
0:09:57 > 0:09:59Is there anything underneath them, or...?
0:09:59 > 0:10:02Erm, it's a hole that's the width of the beam.
0:10:02 > 0:10:04It's just a hole that's the exact width,
0:10:04 > 0:10:06hopefully, of the beam itself.
0:10:06 > 0:10:10With the provided stick, if, let's say, he loses his balance as he goes
0:10:10 > 0:10:15over the obstacles, he could put that down and keep himself steady.
0:10:15 > 0:10:17- Ah!- And then carry on moving.
0:10:17 > 0:10:19So you're sort of spreading the weight of him
0:10:19 > 0:10:23as well a little bit, aren't you? And balancing him out.
0:10:23 > 0:10:26The Super Geeks have gone for a two-pronged attack.
0:10:26 > 0:10:28Balance boots to catch on the side of the beam
0:10:28 > 0:10:29to stop Guinea Pig from falling
0:10:29 > 0:10:33and a balance stick to increase GP's contact with the skywalk.
0:10:33 > 0:10:36But will this cumbersome boots and stick combo
0:10:36 > 0:10:38slide through the challenge?
0:10:38 > 0:10:39Shall we see if it works?
0:10:39 > 0:10:43- ALL:- Yes.- Let's see it. Are you ready, Guinea Pig?
0:10:43 > 0:10:46- No.- In three, two, one!
0:10:46 > 0:10:48Go!
0:10:48 > 0:10:50Now, you can shout encouragement to him.
0:10:50 > 0:10:54Tell him what to do. If you see him doing anything wrong.
0:10:54 > 0:10:57Use the stick and move the washing line up over your head.
0:10:57 > 0:11:00Now, this is going to be the tricky bit, isn't it?
0:11:00 > 0:11:01How does he get his leg...?
0:11:03 > 0:11:05Take your time! Don't try and rush it.
0:11:08 > 0:11:12Retrieve the other leg. Ah, there goes a shoe. There goes his shoe.
0:11:12 > 0:11:15Stick your foot back into the Velcro.
0:11:15 > 0:11:17Running out of time, I'm afraid, Guinea Pig.
0:11:17 > 0:11:20Yes. Knock the boots off!
0:11:20 > 0:11:23- KLAXON - And that's time up.
0:11:23 > 0:11:25That's time up, Guinea Pig.
0:11:25 > 0:11:26Well, at least you didn't fall off.
0:11:26 > 0:11:30Yay! Success...ish.
0:11:30 > 0:11:32GP was balanced even over the obstacles,
0:11:32 > 0:11:36but the heavy boots and stick just made it very slow going...
0:11:36 > 0:11:38Zzzzzz!
0:11:38 > 0:11:39Well, I think you did pretty well.
0:11:39 > 0:11:41Let's find out how the other teams do.
0:11:41 > 0:11:43- Tell them, Dr Morgan! - Next up, the Blue Team!
0:11:43 > 0:11:45Whoo!
0:11:45 > 0:11:47What's it all about, Blues?
0:11:47 > 0:11:49- It's a fruit kebab. - A fruit kebab?!- Yeah!
0:11:49 > 0:11:51What's the idea behind it?
0:11:51 > 0:11:52It's a balancing beam,
0:11:52 > 0:11:55but we've put some fruit on the end of it to kind of, like, keep
0:11:55 > 0:11:59the weight down so it's not just a flimsy pole and to keep it balanced.
0:11:59 > 0:12:01Ah, so you've got balance
0:12:01 > 0:12:05and also you're lowering his centre of gravity.
0:12:05 > 0:12:07Normally, Guinea Pig's centre of gravity
0:12:07 > 0:12:10is about where his belly button is, where he keeps his fluff collection.
0:12:10 > 0:12:13But, with the amazing fruit kebab, this will be lowered,
0:12:13 > 0:12:16and a lower centre of gravity means more balance,
0:12:16 > 0:12:19and a fruit kebab, of course, means a better balanced diet,
0:12:19 > 0:12:21but will he be balanced enough?
0:12:21 > 0:12:23- Shall we see your plan in action? - Yes!- Let's do it.
0:12:23 > 0:12:25Are you ready, Guinea Pig?
0:12:25 > 0:12:27I feel like I'm about to become a fruit salad.
0:12:27 > 0:12:31Here we go - three, two, one, go!
0:12:31 > 0:12:33Go on, Guinea Pig! Nice and slow, there.
0:12:33 > 0:12:35- Nearly at the end of the first beam. - Yeah!
0:12:37 > 0:12:40- Over the washing. - Kick them out the way!
0:12:40 > 0:12:45- Kick 'em.- Yeah! - Oh, he's kicked the boots.
0:12:45 > 0:12:47He's given those boots the boot.
0:12:47 > 0:12:49Watch your foot behind it. Yes!
0:12:49 > 0:12:52- Just walk over the bucket.- Yes!
0:12:52 > 0:12:54Oh, he's kicked the bucket!
0:12:54 > 0:12:56- You've got to try and go under. - Limbo, limbo, limbo!
0:12:56 > 0:12:59Ah, now, what's he going to do?
0:12:59 > 0:13:03Bring your stick with you underneath.
0:13:03 > 0:13:07- Is he going to try and vault over? - Come on! Come on, you can do this.
0:13:07 > 0:13:09Go on, GP. Come on.
0:13:11 > 0:13:13- You're still trapped.- Come on!
0:13:13 > 0:13:14That's it. Keep it up.
0:13:16 > 0:13:17- Oh, look at that.- Whoo!
0:13:17 > 0:13:18- Yes!- All the way!
0:13:18 > 0:13:20He's done it!
0:13:20 > 0:13:22THEY CHEER
0:13:22 > 0:13:24Caramba!
0:13:24 > 0:13:28With this new lower centre of gravity, GP was on fire!
0:13:28 > 0:13:31Not literally, don't worry. He was giving boots the boot,
0:13:31 > 0:13:35kicking the bucket, and doing some awesome lift-y, throw-y,
0:13:35 > 0:13:37catchy thingy with his fruity kebab-y.
0:13:37 > 0:13:39Only The Stevi's design was a roaring success.
0:13:39 > 0:13:44Let's toast an extra banana smoothie to victory!
0:13:44 > 0:13:45Well done, you Blues.
0:13:45 > 0:13:48Let's see how the Greens get on.
0:13:48 > 0:13:51You've gone to town a bit here. What have you got here?
0:13:51 > 0:13:55- They're wings for balance. - And on his shoes, he has...
0:13:55 > 0:13:57A special spike for grips.
0:13:57 > 0:14:00- Ah, I see.- We named them Grippy Shoes.- Grippy Shoes!
0:14:00 > 0:14:03Team Brilliant Brains hope to hold GP's feet onto the pole with their
0:14:03 > 0:14:07Grippy Shoes, and they reckon their wings will give him extra balance.
0:14:07 > 0:14:09We'll see, won't we?
0:14:09 > 0:14:11Right now!
0:14:11 > 0:14:13- Shall we see it in action?- Yes!
0:14:13 > 0:14:15Let's try it. Here he goes. You ready, Guinea Pig?
0:14:15 > 0:14:17I'm ready to take off, Dr Brain.
0:14:17 > 0:14:20Let's do it. Three, two, one!
0:14:20 > 0:14:22Go!
0:14:22 > 0:14:26Step over it. Step over it, cos that's what bosses do.
0:14:26 > 0:14:29Kick the boots because they are unnecessary.
0:14:31 > 0:14:36Ooh, the wind seems to be catching those colourful wings.
0:14:36 > 0:14:38Step over it!
0:14:38 > 0:14:40Come on.
0:14:40 > 0:14:43Kick the bucket!
0:14:43 > 0:14:44Kick it!
0:14:44 > 0:14:46And then... Oh, gosh!
0:14:48 > 0:14:51Put your wings down and try and crouch under.
0:14:51 > 0:14:54Put your wings down and try and crouch under!
0:14:54 > 0:14:56- No!- Oh, oh!
0:14:58 > 0:15:02Oh, down he goes. Bad luck!
0:15:02 > 0:15:04- Oh, he was so nearly there! - He never listens!
0:15:05 > 0:15:07Oh, dear.
0:15:07 > 0:15:09Apart from the wings trying to take off,
0:15:09 > 0:15:11it seemed to be going so well.
0:15:11 > 0:15:13If only GP had listened.
0:15:13 > 0:15:15And maybe if those Brilliant Brains had given him
0:15:15 > 0:15:18more devices to help him balance, and generally a better design,
0:15:18 > 0:15:19that would have helped, too.
0:15:19 > 0:15:21Well, unlucky there, Greens.
0:15:21 > 0:15:23And, of course, to the Yellows, but the Blues,
0:15:23 > 0:15:26you got all the way to the end - you get ten points.
0:15:26 > 0:15:27APPLAUSE
0:15:27 > 0:15:30Two, two...whoo - 12!
0:15:40 > 0:15:45Now, when I'm not working away in the science lab, I like to relax.
0:15:45 > 0:15:48Either with a spot of skydiving over the planet Mars,
0:15:48 > 0:15:51bobbing for fire-breathing robot piranhas,
0:15:51 > 0:15:53or a bit of cooking. Crazy, I know.
0:15:53 > 0:15:56A monkey cooking, who'd have thunk it?
0:15:56 > 0:16:00I've arranged for three team members to rest their giant science brains
0:16:00 > 0:16:02and help me make some lovely tomato sauce
0:16:02 > 0:16:04for our spaghetti dinner later.
0:16:04 > 0:16:07Only difference is, I've replaced the passata food blender
0:16:07 > 0:16:09with a nice wooden mallet.
0:16:09 > 0:16:11What can possibly go wrong?
0:16:11 > 0:16:14You say tomato, I say tom-messy.
0:16:14 > 0:16:16So, when the random sound of Dr Brain goes...
0:16:16 > 0:16:20"WHACK!", all three team members must hit their tomatoes
0:16:20 > 0:16:23as fast as they can. BOSH!
0:16:23 > 0:16:27We will then play it back in slow motion
0:16:27 > 0:16:30and the first person to strike their tomatoes wins.
0:16:30 > 0:16:31Here we go!
0:16:40 > 0:16:41Ready?
0:16:42 > 0:16:44Whack!
0:16:44 > 0:16:45Oh...
0:16:45 > 0:16:47Eurgh!
0:16:47 > 0:16:48Lovely.
0:16:48 > 0:16:50Whoppa-lotta action there in the kitchen.
0:16:50 > 0:16:53Look at them go! But whose mashing mallet was fastest?
0:16:53 > 0:16:55It's impossible to tell.
0:16:55 > 0:16:57Well, there's only one way to be sure.
0:16:57 > 0:17:00Activate the slow-monizer!
0:17:02 > 0:17:05Three cracking cooks, but who will be the Masterchef?
0:17:05 > 0:17:08Ah, look, Dr Parisa definitely reacts the quickest there.
0:17:08 > 0:17:09Her marvellous mallet action
0:17:09 > 0:17:13leaving Doctors Nia and Nathan in the cold.
0:17:13 > 0:17:17So close but we can see that the winner was...
0:17:17 > 0:17:19Blue!
0:17:19 > 0:17:23Yes, Blue, you literally smashed it.
0:17:23 > 0:17:25Ha-ha-ha! Ten points for you.
0:17:33 > 0:17:36It's the final of Monkeychef,
0:17:36 > 0:17:39and Dr Brain is making Hagian Fish Stew,
0:17:39 > 0:17:42with fish bits, other fish bits and a fishy jus.
0:17:43 > 0:17:47Now, when I'm on my holidays on the Planet Hag,
0:17:47 > 0:17:50I do like a spot of camping, but the water there is very polluted
0:17:50 > 0:17:52on account of the trumping fish
0:17:52 > 0:17:55making the rivers and the streams all very trumpy.
0:17:55 > 0:17:59So, I need to find scientific ways of making the water more
0:17:59 > 0:18:03refreshing-tasting and less toilet-flushy.
0:18:03 > 0:18:06So, can the teams come up with ingenious ways to filter
0:18:06 > 0:18:10the water using the various objects on their tables?
0:18:10 > 0:18:13Our water is polluted with medium,
0:18:13 > 0:18:15small and tiny impurities.
0:18:15 > 0:18:18With paper, ribbons, glitter
0:18:18 > 0:18:21and food colouring, which is the closest thing we could find
0:18:21 > 0:18:23to Hagian fish trumps.
0:18:23 > 0:18:26Kind of like an arts and crafts nappy explosion.
0:18:26 > 0:18:30So, teams, you need to choose three materials
0:18:30 > 0:18:34to form three different layers for your filter.
0:18:34 > 0:18:39And you will have three minutes to design and build your filters,
0:18:39 > 0:18:44and then we'll see which of the three teams' recurring theme
0:18:44 > 0:18:45can make our water the cleanest.
0:18:45 > 0:18:48Right, well, you guys had better get building.
0:18:48 > 0:18:50- Are you ready?- Yes!
0:18:50 > 0:18:53Your time starts...now!
0:18:53 > 0:18:56THEY CONFER
0:18:58 > 0:19:00The teams need to think about which three materials
0:19:00 > 0:19:03will be best for their filter.
0:19:03 > 0:19:06Because I've just made a big hole down there, so I've pushed it in.
0:19:06 > 0:19:09The best materials are those that will trap the impurities
0:19:09 > 0:19:10but not the water.
0:19:10 > 0:19:13And our teams need to be careful that their filters don't get blocked
0:19:13 > 0:19:15and stop the water from flowing at all.
0:19:18 > 0:19:21Let's hope their brain juices are flowing in the right direction.
0:19:21 > 0:19:24A-ha-ha! You see what I did there? O-ho-ho!
0:19:24 > 0:19:26THEY CONFER
0:19:26 > 0:19:29And that's time up, everybody, that's time up.
0:19:29 > 0:19:33Stop building, stop thinking, stop planning, stop designing.
0:19:33 > 0:19:35So, you all think you've come up with a great plan to make
0:19:35 > 0:19:39your coloured water emerge all clear and pure, do you?
0:19:39 > 0:19:41Everybody thinks they've done well.
0:19:41 > 0:19:44Well, shall we give it a go? Greens, you're up first.
0:19:48 > 0:19:52- So, that's cotton wool. That is sand.- Yeah, sand.
0:19:52 > 0:19:53- And...- That's a sieve.- ..a sieve.
0:19:53 > 0:19:56So you've only got quite small amounts of cotton wool
0:19:56 > 0:19:58and sand there. Do you think that's going to be enough?
0:19:58 > 0:20:01- You're hoping so.- Hopefully. - No, we know so.- You know so.
0:20:01 > 0:20:03He thinks he knows so, but I'm...
0:20:03 > 0:20:05- He think he knows so.- Yeah.
0:20:05 > 0:20:06You think you know that he knows
0:20:06 > 0:20:09what you know, I think he knows you think so.
0:20:09 > 0:20:11- Yeah.- There you go, that's clear, isn't it?
0:20:15 > 0:20:16This is the original liquid
0:20:16 > 0:20:19and that's what we've got to use to compare with.
0:20:19 > 0:20:23Now, this is what is known in scientific terms as a control.
0:20:23 > 0:20:27Now I'm going to take some of the Hagian fish water
0:20:27 > 0:20:30from here, like this, and here we go.
0:20:30 > 0:20:35I'm going to use your filter and see what happens to the water.
0:20:35 > 0:20:38Ya-da-da-da-da-da-da.
0:20:38 > 0:20:40Oh, there is stuff coming through, though.
0:20:40 > 0:20:42It's just starting to filter through.
0:20:43 > 0:20:45I think that's probably enough.
0:20:49 > 0:20:54Now what we're going to do is dispense your water into your glass.
0:20:54 > 0:20:57You see, it's not really about amount either, that's fine,
0:20:57 > 0:21:00it's all about the purity. So, let's have a look.
0:21:00 > 0:21:02Now, then, can you see in your glass
0:21:02 > 0:21:04any of the medium items?
0:21:04 > 0:21:07- The paper, ribbon and stuff like that?- No.- No?
0:21:07 > 0:21:08Tick!
0:21:08 > 0:21:12Can you see any of the smaller items?
0:21:12 > 0:21:14- The glitter, stuff like that?- No.
0:21:14 > 0:21:15Tick!
0:21:15 > 0:21:17And then when it comes to the colour,
0:21:17 > 0:21:20I guess we'll only really know when we see how the other teams do.
0:21:20 > 0:21:22So why don't we? Let's see how the Blues do.
0:21:27 > 0:21:28- Get in.- Talk me through it.
0:21:28 > 0:21:32So, we have put the coffee filters at the bottom.
0:21:32 > 0:21:35- Yes.- All three of them. - All three of them?- Yeah.
0:21:35 > 0:21:36We've put some sand in there
0:21:36 > 0:21:39and then we've used this as kind of like a sieve for all of them.
0:21:39 > 0:21:42- Ah.- So, like, the big and little things.
0:21:42 > 0:21:46Actify the filtration - no, hang on...
0:21:46 > 0:21:48- Shall we see it in action? - Let's do it.- Yes.
0:21:48 > 0:21:52Let's try placing your filter on top of the dispensing jar,
0:21:52 > 0:21:54here, like so.
0:21:55 > 0:21:58Now the water is going in.
0:21:58 > 0:22:02- There's something coming through the bottom, there...- Oh, my God!
0:22:02 > 0:22:06- ..which means it's working.- Look at that! Get in!
0:22:06 > 0:22:08Stevi's getting very excited about this.
0:22:08 > 0:22:10- That is really... - It started off clear.
0:22:10 > 0:22:12- It did start off clear.- It did, yeah.
0:22:12 > 0:22:14It's coming out quite quick as well.
0:22:14 > 0:22:16To be fair, that's actually not bad.
0:22:16 > 0:22:19- You're pretty pleased with yourself, aren't you?- Yeah.
0:22:19 > 0:22:22Control with compare... Oh, you know what I mean.
0:22:23 > 0:22:26Let's now dispense into the glass...
0:22:26 > 0:22:29That is a lot clearer than theirs. Not being funny.
0:22:29 > 0:22:33Now, it's all about comparing with the control here, you see.
0:22:33 > 0:22:37Now, are there any bits of paper, etc, in there?
0:22:37 > 0:22:39- Nothing in there.- Nothing at all. - Nuffink, mate!
0:22:39 > 0:22:43- Is there any glitter, ribbon, any of that sort of...?- Nothing, no.
0:22:43 > 0:22:45Nuffink, mate!
0:22:45 > 0:22:48When it comes to the colour of the water, we'll only know
0:22:48 > 0:22:51when the Yellows have played. Let's see 'em!
0:22:52 > 0:22:54Access les materiels!
0:22:55 > 0:22:57And what have you made for me?
0:22:57 > 0:22:59A filter, like you asked us to.
0:22:59 > 0:23:01Ha! Good, well done. You win!
0:23:01 > 0:23:04No. But how does it work?
0:23:04 > 0:23:05Well, we've got, like,
0:23:05 > 0:23:08the cotton wool to get rid of the food colouring...
0:23:08 > 0:23:12- Yes?- Then, we've got this cloth for the glitter,
0:23:12 > 0:23:16and the sieve for the ribbon and the paper bits.
0:23:17 > 0:23:19Activez la filtration!
0:23:20 > 0:23:24We are going to give the water a good, vigorous stir.
0:23:24 > 0:23:28Smells of trumpy fish water, doesn't it? Absolutely disgusting.
0:23:28 > 0:23:29Get my jug...
0:23:31 > 0:23:33That's pretty much a litre, isn't it?
0:23:33 > 0:23:35Right, here we go.
0:23:35 > 0:23:37- HE HUMS A TUNE - In it goes.
0:23:37 > 0:23:41Now, that's coming out very quickly through the bottom, isn't it?
0:23:41 > 0:23:44Very nicely. It's a quick working filter.
0:23:44 > 0:23:47Ah, interesting!
0:23:47 > 0:23:51Pretty much all the water has gone through there very, very quickly.
0:23:51 > 0:23:54Comparez avec controle!
0:23:55 > 0:23:59Now, the moment of truth, folks. Let's pour this in...
0:23:59 > 0:24:02Da-ta-da-ta-da-ta-da...
0:24:03 > 0:24:06That's enough, I don't want to overfill it, do we?
0:24:06 > 0:24:09There we go. So, having a look.
0:24:09 > 0:24:13- Now then. Any paper?- No.- No.
0:24:13 > 0:24:15Any ribbons, any glitter, any stuff like that?
0:24:15 > 0:24:17- Um...- Um...
0:24:17 > 0:24:21Tiny, tiny little bits of something in there, isn't there?
0:24:21 > 0:24:23Ah, unfortunate!
0:24:23 > 0:24:25And when it comes to the colour,
0:24:25 > 0:24:27we won't find out until we look at all three.
0:24:27 > 0:24:32So, let's have a look at how all three teams did!
0:24:32 > 0:24:35So, of course, everybody got all the paper out, well done,
0:24:35 > 0:24:36all the big items.
0:24:36 > 0:24:41Yellows, unfortunately, of course, some glitter slipped through,
0:24:41 > 0:24:43so I'm afraid that puts you out of the running.
0:24:43 > 0:24:46And on closer inspection, Blues, I'm afraid some glitter got
0:24:46 > 0:24:49through yours as well, we didn't notice it at first,
0:24:49 > 0:24:52because it was all spinning around, but now that it's settled,
0:24:52 > 0:24:55some has floated to the top, some glitter came through, and in
0:24:55 > 0:24:59terms of colour, the clearest and lightest
0:24:59 > 0:25:01is quite clearly the Greens'.
0:25:01 > 0:25:04Their filter of tightly packed cotton wool, sand
0:25:04 > 0:25:07and a sieve trapped the impurities and resulted in the cleanest water.
0:25:07 > 0:25:09While some food colouring seeped through,
0:25:09 > 0:25:12the Greens managed to block the glitter, paper and ribbon.
0:25:12 > 0:25:14Great job!
0:25:14 > 0:25:17Which means the Greens get 10 points and are the winners, well done!
0:25:17 > 0:25:19- Yes!- Yes!
0:25:19 > 0:25:22So, the Brilliant Brains are getting
0:25:22 > 0:25:24closer to Only The Stevi's colossal 22 points.
0:25:24 > 0:25:27Anyone can still win, although I think maybe the Super Geeks
0:25:27 > 0:25:30might struggle with their little, itsy-bitsy 2.
0:25:30 > 0:25:31Think of the honour, team!
0:25:36 > 0:25:38- Ready, GP?- Ready, DB!
0:25:38 > 0:25:40Hands on the desks. Two points for each correct answer.
0:25:40 > 0:25:46Nothing, not even a mouldy biscuit, for an incorrect one. Let's do this!
0:25:46 > 0:25:48The words, "Houston, we have a problem,"
0:25:48 > 0:25:50were famously spoken on which NASA mission?
0:25:50 > 0:25:52Blue!
0:25:52 > 0:25:54- Apollo 13.- Correct!
0:25:54 > 0:25:58Where is the South Pole - Antarctica or Iceland?
0:25:58 > 0:26:01- Green! - Um... Antarctica.
0:26:01 > 0:26:07- Correct!- How many legs, in total, does a penguin and a fly have?
0:26:07 > 0:26:08- Blue!- Eight.
0:26:08 > 0:26:13Correct! A typical adult human has 206 what in their body?
0:26:13 > 0:26:15- Yellow!- Bones.
0:26:15 > 0:26:16Is correct.
0:26:16 > 0:26:19What term is given to a piece of rock or metal from space
0:26:19 > 0:26:21that reaches the surface of the Earth?
0:26:21 > 0:26:23- Green!- Meteorite.
0:26:23 > 0:26:24That's correct.
0:26:24 > 0:26:27The kiwi bird is native to which country?
0:26:27 > 0:26:28- Yellow.- New Zealand.
0:26:28 > 0:26:30Is correct.
0:26:30 > 0:26:32We are out of time!
0:26:32 > 0:26:34There we go.
0:26:34 > 0:26:37That was incredible, folks. What speed, what dexterity!
0:26:37 > 0:26:41Your minds were buzzing and bursting, but who was the fastest?
0:26:41 > 0:26:45Who was the best? Let's find out. It's the results!
0:26:45 > 0:26:47I'm nervous, aren't you, GP?
0:26:47 > 0:26:49- I'm very nervous.- Oh-ho-ho!
0:26:49 > 0:26:53In third place, with six points,
0:26:53 > 0:26:55it's the Yellow Team!
0:26:55 > 0:26:58- CHEERING - Well played!
0:26:58 > 0:27:03Well played. In second place, with 18 points,
0:27:03 > 0:27:06it's the Green Team!
0:27:06 > 0:27:09- CHEERING - 18, pretty good there,
0:27:09 > 0:27:11but our Ultimate Brain winners,
0:27:11 > 0:27:13with a massive 24 points,
0:27:13 > 0:27:17from the X Factor, it's the Blues!
0:27:17 > 0:27:19CHEERING
0:27:19 > 0:27:22They did a great job, didn't they, Dr Brain?
0:27:22 > 0:27:24Yeah, they all did a fantastic job, GP.
0:27:24 > 0:27:26Especially well done to our winners,
0:27:26 > 0:27:28who cleverly fought their way to victory.
0:27:28 > 0:27:30If it's honour you're after,
0:27:30 > 0:27:32then it's Ultimate Brain honour you've won.
0:27:32 > 0:27:33Salute your victors, teams!
0:27:33 > 0:27:35See you next time for more brain-expanding,
0:27:35 > 0:27:37excellent experiments on...
0:27:37 > 0:27:40Ultimate Brain!