:00:10. > :00:17.Today's show is seriously scary, as we've got Naomi from Nightmares of
:00:18. > :00:20.Nature. We are also making some scary monsters out of these socks.
:00:21. > :00:48.Lindsey ran the marathon in them. Hello. Welcome to a spooky, scary
:00:49. > :00:52.blue BT. It is Halloween on Saturday. We are getting excited and
:00:53. > :00:58.dressing up the studio to look like it. Those ghostly balls are my
:00:59. > :01:03.favourite. If you like fear, I had a lot of it in my new Blue Peter
:01:04. > :01:08.challenge with a Olympic legend. You will see him in just a second. I got
:01:09. > :01:13.invited to Parliament to turn back the hands on one of the best, most
:01:14. > :01:19.famous monuments in the world. It was brilliant. I will turn back time
:01:20. > :01:24.later. I will also be showing you sound to make -- how to make your
:01:25. > :01:29.own sock monster. It is Halloween this weekend. What are you doing?
:01:30. > :01:33.Are you getting dressed up and putting on something scary? Tell us
:01:34. > :01:38.about it. Get in touch and we will try and read your e-mail out later.
:01:39. > :01:42.Lindsey isn't here. She is in Canada. She's back next week but she
:01:43. > :01:47.has hooked us up with the queen of all things scary when it comes to
:01:48. > :01:52.animals. This lady hosts Nightmares of Nature. She has stared down a
:01:53. > :01:59.jaguar, and she has swam with sharks. Please welcome Naomi
:02:00. > :02:06.Wilkinson. Hello. I'm excited to be here. Let's talk about your third
:02:07. > :02:12.series. It is fantastic. You have met some scary animals. Tell us
:02:13. > :02:17.about them. I have had some scary encounters. I got in the water with
:02:18. > :02:25.Wales sharks. It is the biggest shock in the world. -- whale sharks.
:02:26. > :02:30.I breathed into waking cobra's mouth through a tiny bit of straw. That
:02:31. > :02:35.was waking it up after health checks. We found this on a beach in
:02:36. > :02:42.Pembrokeshire, it is a ragworm. I don't like it. It is quite creepy,
:02:43. > :02:49.but it is not harmful at all. Your fear knows no bounds. Does yours? I
:02:50. > :02:54.don't want to go there. I'm going to play a game with you. You are going
:02:55. > :03:02.to love it. We are calling it Fear or Fake. Come and play. Step this
:03:03. > :03:06.way, take your positions on the petrifying podium. You are such a
:03:07. > :03:12.good presenter, Naomi. You are going to love this, not a lot. You have to
:03:13. > :03:19.try and guess the Halloween horror I am describing to you. The first
:03:20. > :03:24.person to buzz and get it correctly gets to nominate their opponent to
:03:25. > :03:30.put their hand into either box A or box B. In one of the boxes is a real
:03:31. > :03:37.scary animal. The other one is fake. Are you prepared? I am up for this,
:03:38. > :03:42.Naomi. You are going to love it. The overall loser will have a forfeit.
:03:43. > :03:54.Halloween horror number one. This fearsome creature has heat-seeking
:03:55. > :04:05.vision. Bat? Incorrect. It's their snake. It is! Which box do you want
:04:06. > :04:15.him to put his hand in? I would like him to put his hand in box A. It is
:04:16. > :04:20.so nice not to be me for a change. Put your hand in gently. Take it
:04:21. > :04:36.steady. Write down inside. Feel around. Fear or fake? Fear. That is
:04:37. > :04:41.fear correct. That is corn snakes. That was a mistake! Halloween horror
:04:42. > :04:54.number two. These creatures have no arms or legs. Another clue? A worm?
:04:55. > :04:59.No. They act as nature's recyclers, raking down rotten animals. Another
:05:00. > :05:10.clue? You both look clueless. They turn into flies. This is rubbish.
:05:11. > :05:19.Maggots. Well done, it is. Which box would you like him to put his hand
:05:20. > :05:23.in? I am thinking box B. Radzi, just to remind you, you have no idea. We
:05:24. > :05:42.genuinely don't know what is going on. Oh, no! What is it? What is it?
:05:43. > :05:49.Fear or fake? Oh, no! It's real! You are doing very well so far. Under
:05:50. > :05:59.number three. It was maggots. These creatures are powerful jumpers.
:06:00. > :06:07.Kangaroo. No, it's not. They have spikes on their abdomen which they
:06:08. > :06:11.use as a weapon. Starfish. No. I will give you another clue. They
:06:12. > :06:29.share their name with a popular sport. How's that? Cricket! Yes!
:06:30. > :06:37.Well done, Radzi. Which one? Box A. No, box B. Nothing to worry about at
:06:38. > :06:54.all, Barney. Nothing to worry about at all. I don't like that! That is
:06:55. > :07:00.fear, without a doubt. It is, correct. Those are crickets. They
:07:01. > :07:07.are horrible! They are actually in both boxes. Who is our ultimate
:07:08. > :07:14.loser? Barney, sorry. Well done, Radzi. That was actually OK. Thank
:07:15. > :07:20.you for being here. Always good to have you on the show. Don't relax
:07:21. > :07:27.too much. He scary animals haven't gone just yet. As the ultimate
:07:28. > :07:31.loser, Barney, you have to introduce the next part of the show holding my
:07:32. > :07:40.friend, Charlotte, who is a tarantula. Don't drop her. Oh, my
:07:41. > :07:47.giddy aunt! Your hands are solid as a rock. Aren't they just? If you
:07:48. > :07:52.want to see more from Naomi, we don't, but if you do, go to the
:07:53. > :07:58.website. Did you enjoy your extra hour in bed on Sunday? I did that,
:07:59. > :08:06.honestly. Are you struggling to concentrate? No, I'm fine! Time is
:08:07. > :08:11.constantly ticking, isn't it. We use it to organise our lives. It keeps
:08:12. > :08:16.us all in sync. Sometimes it lets us know when we are late to school. If
:08:17. > :08:22.I'm going to talk about time, I'm going to need a clock, but not just
:08:23. > :08:29.any old clock. I've gone to see the most famous clock in the world. Oh,
:08:30. > :08:33.yes! We've been invited to Parliament to help with a very
:08:34. > :08:38.special task, the changing of the clocks. Taking me through each stage
:08:39. > :08:43.in the process are the clock mechanics, Ian, Hugh and Paul. All
:08:44. > :08:49.the work happens at the top, which means climbing 334 steps. This is
:08:50. > :08:55.one of those times when you have two speed be filled up. I am climbing
:08:56. > :09:01.Elisabeth tower. The name Big Ben refers to the bell. Why do we change
:09:02. > :09:06.the clocks? To explain, we have to go into space. The earth is tilted
:09:07. > :09:10.as it orbits the sun. In the summer, we have longer days as we are facing
:09:11. > :09:16.the sun. In the winter, the days are short because we are facing away. A
:09:17. > :09:20.British builder called William Willis first suggested changing the
:09:21. > :09:30.clocks in 1907, to make the most of daylight hours. I am finally here.
:09:31. > :09:36.This is the great clock of Westminster. Look at that! It may
:09:37. > :09:41.not look like the clocks you have at home, but this mechanism turns the
:09:42. > :09:45.hands on the clock face. It weighs 4.5 tonnes, the same as a fully
:09:46. > :09:51.grown elephant! We know that Big Ben is the sound that you here, but the
:09:52. > :09:58.bit you recognise is the clock face. We are behind it. It is massive.
:09:59. > :10:04.Seven metres across. This is the inspection hat. We can look and make
:10:05. > :10:08.sure no panes of glass are broken. I think we should inspect the outside
:10:09. > :10:16.while we are here. A lovely view of London. There is the camera crew,
:10:17. > :10:21.Hallo! We can't get the camera out there to show you what the view is
:10:22. > :10:26.like, but I have a little camera to show you just the job. Look out
:10:27. > :10:32.here! That is me hanging out of this massive monument in London. Isn't it
:10:33. > :10:37.beautiful? Enough dangling out of this world famous building, I've got
:10:38. > :10:41.a job to do. First, turning the lights off. This takes place just
:10:42. > :10:50.after 10pm and it allows the team to change the time without anybody
:10:51. > :10:55.outside noticing. South, west... You have switched off the lights. And we
:10:56. > :11:00.can now switch off the -- set the clock. This is the piece of
:11:01. > :11:11.equipment we have to use. Nice and tight. That isn't going anywhere.
:11:12. > :11:17.That isn't going to make a noise. We Big Ben silenced, we can change the
:11:18. > :11:22.time. Unlock it -- unlike a clock at home, this mechanism can only go
:11:23. > :11:28.forward. We have to move it on until exactly midnight where it will be
:11:29. > :11:36.held until real catches up. Ready? Ready. What is happening outside is,
:11:37. > :11:40.in complete darkness, you will see the silhouette of the hands moving
:11:41. > :11:49.round. Time flies when you're having fun. Bang on! There you have it,
:11:50. > :11:53.midnight. The night is chosen to allow for several hours of
:11:54. > :11:58.maintenance to take place. And one of the most important jobs, winding
:11:59. > :12:01.the clock. Years ago, my grandma had a watch with a wheel on the site you
:12:02. > :12:06.would wind up and the energy would give you power so it would keep
:12:07. > :12:13.working. This doesn't have batteries so we effectively have two wind it
:12:14. > :12:19.up. We do. You have to do 120 to make it last three days. Harder!
:12:20. > :12:20.That