1 00:00:00,000 --> 00:00:04,000 We are going to continue with social science. 2 00:00:04,000 --> 00:00:08,000 The last week, we saw the natural and the man-made. 3 00:00:08,000 --> 00:00:14,000 Today, we are going to see why are these chains, okay? 4 00:00:14,000 --> 00:00:19,000 In this unit, in these pages, we are going to see chains for travel. 5 00:00:19,000 --> 00:00:23,000 Do you know what is travel? 6 00:00:23,000 --> 00:00:25,000 Do you know what is travel? 7 00:00:25,000 --> 00:00:27,000 No. 8 00:00:27,000 --> 00:00:29,000 Raúl, do you know what is travel? 9 00:00:29,000 --> 00:00:47,700 Now travel is to go from one place to another place. For example, from the school to Sanadu. For example, how do you go to Sanadu? 10 00:00:47,700 --> 00:01:07,540 How do you go? Do you go by car? Do you go by foot? Walking? In the car. 11 00:01:07,540 --> 00:01:17,540 And what do you need for the car? The car goes through the countryside or do they need a road? 12 00:01:17,540 --> 00:01:18,560 Road. 13 00:01:18,560 --> 00:01:18,819 Road. 14 00:01:19,200 --> 00:01:19,719 Road. 15 00:01:20,040 --> 00:01:20,359 Road. 16 00:01:20,560 --> 00:01:20,780 Road. 17 00:01:21,060 --> 00:01:21,280 Road. 18 00:01:22,319 --> 00:01:29,219 Yeah, but in this case, road. 19 00:01:29,439 --> 00:01:31,760 We are going to see the changes, okay, 20 00:01:31,819 --> 00:01:36,079 the changes that the man makes for traveling, okay? 21 00:01:36,200 --> 00:01:37,719 The transform links. 22 00:01:38,140 --> 00:01:42,879 Transform links means like to relate one point 23 00:01:42,879 --> 00:01:46,840 from another point, okay, one place to another place. 24 00:01:46,840 --> 00:02:02,680 For example, a lea is on a loop. We can go by car, we can go by bus, okay? What happens if we want to take a train? What happens if we want to take a train? 25 00:02:02,680 --> 00:02:07,519 Wait, wait, wait, Naya, do you want to repeat? 26 00:02:09,199 --> 00:02:10,340 Very good. 27 00:02:10,819 --> 00:02:17,379 In English, it's railway lines. 28 00:02:17,840 --> 00:02:18,900 Lines, lines. 29 00:02:18,960 --> 00:02:19,360 Okay? 30 00:02:19,740 --> 00:02:20,180 Lines. 31 00:02:21,280 --> 00:02:24,759 So, we need this for the trains. 32 00:02:25,560 --> 00:02:31,219 If we don't have the railway lines, the train can't arrive, okay? 33 00:02:31,219 --> 00:02:40,219 Now what happens if we have a big mountain and we need to make a hole inside the mountain? 34 00:02:40,219 --> 00:02:42,219 Aitana? 35 00:02:42,219 --> 00:02:49,219 How do you go in a mountain when we make a hole? 36 00:02:49,219 --> 00:02:51,219 What is that? 37 00:02:51,219 --> 00:02:53,219 Iker? 38 00:02:53,219 --> 00:02:56,219 A hole in a tunnel. 39 00:02:56,219 --> 00:02:58,219 We cannot paint. 40 00:02:58,219 --> 00:02:59,219 Pepe? 41 00:02:59,219 --> 00:03:00,219 Tunnel. 42 00:03:00,219 --> 00:03:19,979 Tunnel. Very good. Tunnel. Okay? What happens if we have a river? Okay? This is a river, this is water, and we have to cross the river. How is that called? 43 00:03:19,979 --> 00:03:49,780 No, like this. Look at the picture. A bridge. That's it. We are not in the boat yet. So we have a bridge. And then if we go in boat, by boat, okay, we need a place to park the boat. 44 00:03:49,979 --> 00:03:52,060 Okay, the place where the boat sleeps. 45 00:03:52,180 --> 00:03:53,159 Do you know how it's called? 46 00:03:55,159 --> 00:03:55,719 No. 47 00:03:56,759 --> 00:04:06,719 When you go to, okay, when you have a boat trip, where do you go to take the boat? 48 00:04:07,080 --> 00:04:08,020 The boat. 49 00:04:09,319 --> 00:04:10,560 ¿Dónde coges el barco? 50 00:04:11,560 --> 00:04:12,360 ¿Y qué? 51 00:04:13,819 --> 00:04:15,000 En el mar. 52 00:04:15,919 --> 00:04:16,920 Pero no chiques el barco. 53 00:04:17,420 --> 00:04:18,060 ¿Cómo, Pamela? 54 00:04:18,060 --> 00:04:19,399 I'm going to look at it. 55 00:04:19,579 --> 00:04:19,980 Pueblo. 56 00:04:20,480 --> 00:04:21,259 En el pueblo. 57 00:04:21,959 --> 00:04:22,620 Pueblo no. 58 00:04:22,800 --> 00:04:23,319 Parecido. 59 00:04:23,779 --> 00:04:24,139 Aitana? 60 00:04:24,720 --> 00:04:25,519 En el muelle. 61 00:04:26,220 --> 00:04:26,720 Muelle. 62 00:04:26,899 --> 00:04:27,740 El muelle, ¿dónde está? 63 00:04:27,920 --> 00:04:28,620 Where is the muelle? 64 00:04:28,959 --> 00:04:29,199 Aitana. 65 00:04:29,300 --> 00:04:29,579 Por. 66 00:04:30,259 --> 00:04:30,819 Por. 67 00:04:31,819 --> 00:04:33,160 No pueblo, puerto. 68 00:04:33,360 --> 00:04:33,699 Por. 69 00:04:34,480 --> 00:04:35,079 Puerto. 70 00:04:36,360 --> 00:04:36,959 Por. 71 00:04:39,819 --> 00:04:41,160 That's for the plane. 72 00:04:41,759 --> 00:04:42,920 This is for the boat. 73 00:04:43,759 --> 00:04:45,399 So we have road. 74 00:04:45,519 --> 00:04:45,879 Repeat. 75 00:04:46,220 --> 00:04:46,639 Road. 76 00:04:46,639 --> 00:04:47,259 Road. 77 00:04:48,060 --> 00:04:59,819 We have railway lines, we have tunnels, grids, and ports. 78 00:04:59,819 --> 00:05:13,699 Now, do you remember by water, by land, do you remember water, land, is road. 79 00:05:13,699 --> 00:05:19,279 That road goes by land or by water? 80 00:05:19,279 --> 00:05:20,279 Land. 81 00:05:20,279 --> 00:05:21,279 By land. 82 00:05:21,279 --> 00:05:22,279 By land. 83 00:05:22,279 --> 00:05:23,279 By land. 84 00:05:23,279 --> 00:05:24,279 By land. 85 00:05:24,279 --> 00:05:25,279 And the railway lines? 86 00:05:25,279 --> 00:05:26,279 By land. 87 00:05:26,279 --> 00:05:27,279 Land. 88 00:05:27,279 --> 00:05:28,279 Land. 89 00:05:28,279 --> 00:05:29,279 Land. 90 00:05:29,279 --> 00:05:30,279 And the tunnel? 91 00:05:30,279 --> 00:05:31,279 Land. 92 00:05:31,279 --> 00:05:32,279 Land. 93 00:05:32,279 --> 00:05:33,279 Land. 94 00:05:33,279 --> 00:05:34,279 And the rips? 95 00:05:34,279 --> 00:05:35,279 Land. 96 00:05:35,279 --> 00:05:36,279 River. 97 00:05:36,279 --> 00:05:41,279 So, so, usually water because we need the rips to cross the water. 98 00:05:41,279 --> 00:05:42,279 River. 99 00:05:42,279 --> 00:05:54,480 and the port, land or water, the port, water, water, very good, water, water.