1 00:00:06,025 --> 00:00:13,698 Welcome to the Why Lab with Eirini, Nefeli and Pico, where we observe, ask and 2 00:00:13,698 --> 00:00:14,210 discover! 3 00:00:16,025 --> 00:00:20,550 Ready! I've made the world's most orange collection! 4 00:00:22,025 --> 00:00:27,350 An orange, a pencil and your sock? Why together? 5 00:00:28,025 --> 00:00:35,270 I heard that oranges have vitamin C. So… everything orange has vitamin C! 6 00:00:36,020 --> 00:00:37,910 Even my orange sock? 7 00:00:40,025 --> 00:00:47,086 We can test that idea. First, let's separate our food… from all the other 8 00:00:47,086 --> 00:00:47,590 things. 9 00:00:55,025 --> 00:01:00,739 Let's start with a question. Can a food have vitamin C even if it isn't 10 00:01:00,739 --> 00:01:05,310 orange? Our first idea is called a hypothesis. Then we test it! 11 00:01:08,025 --> 00:01:13,639 I think it can, and I have brought something red and something green for us to 12 00:01:13,639 --> 00:01:13,990 explore! 13 00:01:15,114 --> 00:01:20,250 I'm almost sure about orange. But… I'll listen! 14 00:01:21,025 --> 00:01:23,310 Well… what do you think? 15 00:01:31,025 --> 00:01:35,150 A pepper! Strawberries! And a kiwi! 16 00:01:36,025 --> 00:01:43,030 The kiwi is brown outside. But it's green inside! Now I'm confused. 17 00:01:44,025 --> 00:01:50,367 All four of these foods contain vitamin C. They have different colours, 18 00:01:50,367 --> 00:01:53,010 different shapes and different flavours. 19 00:01:55,150 --> 00:01:58,670 So vitamin C has lots of friends! 20 00:02:00,025 --> 00:02:03,750 A colourful bunch of friends! No socks. 21 00:02:11,025 --> 00:02:16,040 Let me see the vitamin! Could it be hiding behind this little dimple? 22 00:02:17,025 --> 00:02:22,928 We can't see it that way. The magnifying glass helps us look at the surface. 23 00:02:22,928 --> 00:02:28,437 To find out what's in a food, we need other information and the right 24 00:02:28,437 --> 00:02:28,830 measurements. 25 00:02:30,245 --> 00:02:33,830 So what we see… isn't the same as what's inside! 26 00:02:35,025 --> 00:02:39,230 My magnifying glass cannot tell me everything. 27 00:02:46,025 --> 00:02:50,227 Scientists study different foods and carefully record their measurements, so 28 00:02:50,227 --> 00:02:55,270 we read reliable sources and check what the information actually tells us. 29 00:02:55,865 --> 00:02:58,470 Guessing from the colour isn't enough. 30 00:03:00,250 --> 00:03:03,350 What if our first idea is mistaken? 31 00:03:04,025 --> 00:03:07,350 Correcting our ideas helps us learn! 32 00:03:08,025 --> 00:03:10,550 So… I have learned something new! 33 00:03:12,025 --> 00:03:14,550 Why is vitamin C important? 34 00:03:16,025 --> 00:03:21,628 Vitamin C has many roles, including helping our bodies make collagen, a 35 00:03:21,628 --> 00:03:25,830 material that supports body parts such as our skin. 36 00:03:27,025 --> 00:03:30,030 Like these ribbons that make a network? 37 00:03:31,025 --> 00:03:37,254 The ribbons help us imagine it, but our bodies are more complex and need many 38 00:03:37,254 --> 00:03:38,500 things working together. 39 00:03:40,150 --> 00:03:42,390 Just like our lab friends! 40 00:03:49,815 --> 00:03:55,430 What if I fill this whole notebook… with one enormous orange? 41 00:03:56,025 --> 00:03:59,270 But what happens to all our other food friends? 42 00:04:00,025 --> 00:04:05,585 Every food has its own mix of ingredients. We need variety in what we eat. 43 00:04:07,025 --> 00:04:12,350 My notebook has a better idea… lots and lots of little drawings! 44 00:04:19,025 --> 00:04:26,420 Which food contains vitamin C: the orange, the pepper, or both? 45 00:04:34,025 --> 00:04:35,750 Yes, both of them! 46 00:04:38,025 --> 00:04:43,326 Foods can have different colours… and still contain the same nutrient, like 47 00:04:43,326 --> 00:04:44,210 vitamin C. 48 00:04:45,025 --> 00:04:49,310 Look, here's our discovery… written in my notebook! 49 00:04:50,025 --> 00:04:56,390 At first I thought something else. Now I feel… a bit more like a researcher! 50 00:04:57,100 --> 00:04:59,150 Because you found the answer? 51 00:05:01,025 --> 00:05:06,030 You also asked questions, checked the evidence and changed your mind. 52 00:05:07,025 --> 00:05:09,470 Changing my mind feels good! 53 00:05:11,025 --> 00:05:14,270 Tomorrow, we can explore a new question. 54 00:05:15,025 --> 00:05:21,439 Now we have a mission for you. With a grown-up, remember two foods we saw 55 00:05:21,439 --> 00:05:23,150 today and draw them. 56 00:05:24,025 --> 00:05:27,190 Together… in one paper basket! 57 00:05:28,090 --> 00:05:34,630 My kiwi looks like a potato… so I'll draw a little label to explain it. 58 00:05:35,025 --> 00:05:40,992 If you want to explore a food in the kitchen, ask your grown-up for help 59 00:05:40,992 --> 00:05:41,390 first. 60 00:05:42,253 --> 00:05:45,590 And tell each other: what surprised me today? 61 00:05:52,025 --> 00:05:55,830 My orange collection… has a new name! 62 00:05:57,025 --> 00:05:58,510 What name? 63 00:06:01,070 --> 00:06:02,670 The colourful bunch! 64 00:06:05,250 --> 00:06:09,630 Your own discovery comes next… see you at our next why! 65 00:06:10,025 --> 00:06:14,950 I observe the world, I ask my questions, and I discover!