WEBVTT 00:06.050 --> 00:11.980 Welcome to the Why Lab! Today Pico is building something, and he needs a good team. 00:12.430 --> 00:15.860 A tower! I chose only the strongest blocks. 00:15.860 --> 00:19.610 With blocks this strong, it will reach the sky! 00:19.917 --> 00:22.509 But your tower is leaning. Maybe we should 00:22.509 --> 00:25.287 also think about how the blocks fit together. 00:25.420 --> 00:30.580 Wait! Do not fall! I thought one good material was enough for everything. 00:30.917 --> 00:34.122 Our blocks give us an idea about teamwork. But 00:34.122 --> 00:37.327 our bodies are much more complex than a tower. 00:37.443 --> 00:40.547 So there are things working together inside our 00:40.547 --> 00:43.453 bodies too? Which friend will we meet today? 00:43.730 --> 00:47.510 Calcium! It is a mineral that our bodies need. 00:47.510 --> 00:50.880 Let us discover how it works with others. 00:51.100 --> 00:53.668 Calcium, welcome to the team! I will leave 00:53.668 --> 00:56.420 room in my notebook for your friends as well. 00:59.043 --> 01:01.841 In this drawing I can see bones and teeth. 01:01.841 --> 01:04.773 Does calcium have something to do with them? 01:05.000 --> 01:11.164 Yes. Calcium helps build and maintain strong bones and teeth. But it does not do 01:11.164 --> 01:12.320 this all alone. 01:12.633 --> 01:17.863 So our bones are little building blocks inside us? Shall I give them a red roof too? 01:18.290 --> 01:24.287 Bones are living parts of the body. They grow and change. Our building blocks are 01:24.287 --> 01:25.620 only a comparison. 01:25.783 --> 01:31.091 I like that word, comparison. It helps us imagine something, but the two things are 01:31.091 --> 01:32.433 not exactly the same. 01:32.577 --> 01:35.449 Exactly. And calcium has other jobs too. For 01:35.449 --> 01:38.387 example, we need it to help our muscles work. 01:38.510 --> 01:43.910 I have robot gears! So you had better not use me as a drawing of the human body. 01:44.367 --> 01:47.125 Here is my next question. Where do our bodies 01:47.125 --> 01:49.637 get the calcium that they need every day? 01:54.463 --> 02:00.355 From the food we eat. Let us look at these cards. They show different foods that 02:00.355 --> 02:01.533 contain calcium. 02:01.723 --> 02:04.976 I found milk, yogurt and cheese! Is the whole 02:04.976 --> 02:08.013 team here, or are there other friends too? 02:08.163 --> 02:12.654 There are other sources, including some green vegetables and foods that have 02:12.654 --> 02:13.953 calcium added to them. 02:14.097 --> 02:16.820 This drink looks like milk. Can we tell how 02:16.820 --> 02:19.607 much calcium it contains just by its colour? 02:21.973 --> 02:27.753 The colour does not tell us. A grown-up can read the label and help us find out more. 02:27.907 --> 02:33.637 I remember our colourful friends! Our eyes can observe, but we need more information 02:33.637 --> 02:35.547 to learn what food contains. 02:36.017 --> 02:38.782 What if someone cannot eat a particular food? 02:38.782 --> 02:41.547 Our friends do not all have the same choices. 02:41.717 --> 02:48.556 Grown-ups help find suitable choices for each child. Here we are exploring food 02:48.556 --> 02:51.327 cards, without tasting anything. 02:53.853 --> 02:58.913 So we have calcium! Is the job finished now? Can everyone else go and have a rest? 02:59.360 --> 03:05.440 The body needs many nutrients. One of calcium’s partners is vitamin D, which 03:05.440 --> 03:07.840 helps the body absorb calcium. 03:08.007 --> 03:10.519 Does absorption mean that calcium from food 03:10.519 --> 03:13.147 can move into the body, where it can be used? 03:13.357 --> 03:18.762 Yes, that is the basic idea. Our little drawing shows it simply, without every 03:18.762 --> 03:20.287 detail of the process. 03:20.470 --> 03:23.882 Calcium and vitamin D work together! I will draw 03:23.882 --> 03:27.080 them side by side, and leave room for others. 03:27.553 --> 03:33.753 Movement matters for our bones too. Walking, playing and running help us as we grow. 03:33.867 --> 03:37.151 So our bodies need a variety of foods and chances 03:37.151 --> 03:40.167 to play. There is no single magic ingredient! 03:40.267 --> 03:45.439 Then my team has grown! I will add another page, because all these partners need more 03:45.439 --> 03:46.717 space in my notebook. 03:49.403 --> 03:56.986 Time for a little mystery. Do bones need calcium all on its own, or do they need 03:56.986 --> 04:00.113 many partners? What do you think? 04:03.793 --> 04:06.738 I would choose many partners. We learned that 04:06.738 --> 04:09.553 both food and movement have a part to play. 04:09.667 --> 04:15.892 Exactly. Calcium is important, but it is one part of caring for our bodies. It 04:15.892 --> 04:18.047 cannot do everything alone. 04:18.237 --> 04:21.253 And now another question! If a drink is white, 04:21.253 --> 04:24.137 does that mean I already know what is in it? 04:27.833 --> 04:32.213 Not just by looking at it. I can ask a grown-up to read the label with me. 04:32.403 --> 04:37.538 I have changed my first idea! Now I am looking at the whole team, not just one 04:37.538 --> 04:38.393 strong block. 04:38.580 --> 04:44.103 Researchers do that too. They ask questions, observe and change an idea when 04:44.103 --> 04:45.920 they learn something new. 04:46.043 --> 04:48.460 It is all right not to know everything. A 04:48.460 --> 04:51.053 good question can help us take another step. 04:53.627 --> 05:00.570 Your mission is a team drawing. With a grown-up, draw one food and one favourite 05:00.570 --> 05:02.827 game that gets you moving. 05:03.003 --> 05:08.353 I am drawing yogurt and a walk in the park. Your choices can be different from mine. 05:08.537 --> 05:13.910 I am putting a big question mark in the middle. It is for everything we still want 05:13.910 --> 05:15.287 to discover together! 05:15.600 --> 05:20.822 Talk about what you learned and what made you change your mind. You do not need to 05:20.822 --> 05:22.860 taste any food for this drawing. 05:23.027 --> 05:27.860 Today I met calcium and learned something else too. Inside our bodies, working 05:27.860 --> 05:29.347 together really matters. 05:29.487 --> 05:35.569 My tower did not become a skyscraper. But it helped us make a discovery and ask an 05:35.569 --> 05:37.127 even better question! 05:37.400 --> 05:43.620 Next time we will meet iron that is not a cooking pot. Until then, keep your 05:43.620 --> 05:44.930 curiosity alive! 05:45.100 --> 05:49.166 I observe, I ask, I discover! Now you can turn 05:49.166 --> 05:53.320 off the screen and carry on exploring together.