Emily’s Science Lab - OOBLECK - Easy science experiment for kids (ASL)
Emily Calandrelli
[{'start': '0.500', 'end': '1.968', 'text': 'Have you ever wondered,'}, {'start': '2.035', 'end': '5.438', 'text': 'can a fluid be both\na solid and a liquid?'}, {'start': '5.505', 'end': '7.941', 'text': "Yes, it can, and today\nI'm going to teach you"}, {'start': '8.007', 'end': '11.678', 'text': 'how to make one at home\nwith my experiment, oobleck.'}, {'start': '11.745', 'end': '13.446', 'text': "Hi, everyone,\nI'm Emily Calandrelli,"}, {'start': '13.513', 'end': '16.383', 'text': 'MIT engineer and host\nof "Emily\'s Wonder Lab",'}, {'start': '16.449', 'end': '18.184', 'text': 'and on my channel, we talk about'}, {'start': '18.251', 'end': '20.854', 'text': 'all things space and science.'}, {'start': '20.920', 'end': '23.289', 'text': 'So grab some cornstarch,\nbecause we are about to make'}, {'start': '23.356', 'end': '26.926', 'text': "the world's most popular\nscience experiment."}, {'start': '26.993', 'end': '28.895', 'text': "♪ Emily's Science Lab ♪"}, {'start': '28.962', 'end': '29.763', 'text': '♪ Stay curious ♪'}, {'start': '29.829', 'end': '31.097', 'text': '♪ And keep exploring ♪'}, {'start': '31.164', 'end': '32.732', 'text': "♪ Emily's Science Lab ♪"}, {'start': '32.799', 'end': '33.767', 'text': '♪ Stay curious ♪'}, {'start': '33.833', 'end': '36.970', 'text': '♪ And keep exploring ♪'}, {'start': '37.036', 'end': '40.507', 'text': 'Today, we are making\nsomething called oobleck.'}, {'start': '40.573', 'end': '42.976', 'text': 'This was the most popular\nscience experiment'}, {'start': '43.042', 'end': '45.078', 'text': 'from my Netflix show,\n"Emily\'s Wonder Lab".'}, {'start': '45.145', 'end': '48.014', 'text': "I think one of the reasons is\njust it's so fun to play with."}, {'start': '48.081', 'end': '50.683', 'text': "It's easy with little hands,\nand it's so accessible."}, {'start': '50.750', 'end': '53.853', 'text': 'All you need is\ncornstarch and water.'}, {'start': '53.920', 'end': '55.188', 'text': "Here's how you make it."}, {'start': '55.255', 'end': '57.624', 'text': 'You are going to need\none cup cornstarch'}, {'start': '57.690', 'end': '60.627', 'text': 'to 1/2 cup to 3/4 cup water.'}, {'start': '60.693', 'end': '62.929', 'text': 'You can play with\nthe ingredients here'}, {'start': '62.996', 'end': '65.198', 'text': 'because it really\ndepends on how hard'}, {'start': '65.265', 'end': '68.134', 'text': 'or how liquidy you want\nyour oobleck to be.'}, {'start': '68.201', 'end': '71.638', 'text': "So let's add one cup of\ncornstarch to our bowl."}, {'start': '71.704', 'end': '74.240', 'text': 'All cornstarch has a little\nbit of a different density,'}, {'start': '74.307', 'end': '75.408', 'text': 'so that can also...'}, {'start': '75.475', 'end': '77.610', 'text': 'Oh! Impact how\nmuch water you use.'}, {'start': '77.677', 'end': '79.179', 'text': "That's fine, I'll just add\na little bit more water."}, {'start': '79.245', 'end': '81.848', 'text': "So that's about\none cup of cornstarch."}, {'start': '81.915', 'end': '85.752', 'text': "And then we're gonna add\nmaybe about 3/4 cup of water."}, {'start': '85.819', 'end': '88.521', 'text': "So I'm just gonna do that here."}, {'start': '90.290', 'end': '92.525', 'text': "That's about 3/4 cup."}, {'start': '92.592', 'end': '95.061', 'text': 'You can notice, as you\nare mixing this in,'}, {'start': '95.128', 'end': '97.197', 'text': 'it feels really weird.'}, {'start': '97.263', 'end': '101.501', 'text': 'This is the magic behind\na non-Newtonian fluid.'}, {'start': '101.568', 'end': '103.203', 'text': "That means it's just\na fluid that doesn't"}, {'start': '103.269', 'end': '105.371', 'text': 'abide by the normal fluid rules.'}, {'start': '105.438', 'end': '107.407', 'text': 'Sometimes it acts like a solid,'}, {'start': '107.474', 'end': '110.643', 'text': 'and sometimes it\nacts like a liquid.'}, {'start': '110.710', 'end': '113.012', 'text': 'Now, once we add\nall of our water,'}, {'start': '113.079', 'end': '114.414', 'text': "and I'm gonna add\na little bit more"}, {'start': '114.481', 'end': '115.648', 'text': 'because I want mine to be'}, {'start': '115.715', 'end': '117.083', 'text': 'a little bit more\nliquidy than this.'}, {'start': '118.184', 'end': '119.252', 'text': 'Just like that.'}, {'start': '119.319', 'end': '120.854', 'text': 'And if yours gets too liquidy,'}, {'start': '120.920', 'end': '123.456', 'text': 'all you have to do is add\na little bit of cornstarch.'}, {'start': '123.523', 'end': '127.560', 'text': 'Ooh, goodness. You gotta\nput some muscle behind it.'}, {'start': '127.627', 'end': '129.796', 'text': '[groans] There you go.'}, {'start': '129.863', 'end': '131.831', 'text': "And as we're doing this,\ngo ahead"}, {'start': '131.898', 'end': '134.400', 'text': 'and add a couple of\ndrops of food coloring.'}, {'start': '134.467', 'end': '135.802', 'text': "I'm gonna make mine pink."}, {'start': '136.669', 'end': '138.438', 'text': 'Doot, doot, doot. Perfect.'}, {'start': '138.505', 'end': '141.474', 'text': 'Now go ahead and mix that in.'}, {'start': '143.877', 'end': '145.778', 'text': 'Whoa, look how cool that looks!'}, {'start': '145.845', 'end': '147.847', 'text': 'Once you have that mixed,'}, {'start': '147.914', 'end': '151.184', 'text': 'go ahead and get your hands\nin there and play with it,'}, {'start': '151.251', 'end': '153.253', 'text': "'cause that's where\nit feels really cool."}, {'start': '153.319', 'end': '156.089', 'text': "So I'm gonna go ahead and\npick it up with my hands."}, {'start': '156.155', 'end': '157.357', 'text': 'And watch this.'}, {'start': '157.423', 'end': '160.760', 'text': 'When I squeeze it,\nit acts like a solid,'}, {'start': '160.827', 'end': '163.363', 'text': 'because a non-Newtonian\nfluid like this one,'}, {'start': '163.429', 'end': '167.700', 'text': 'when we add pressure to it,\nit acts like a solid.'}, {'start': '167.767', 'end': '169.636', 'text': 'But when I stop\nadding pressure to it,'}, {'start': '169.702', 'end': '171.604', 'text': 'watch, watch,\nwatch, watch, watch,'}, {'start': '171.671', 'end': '173.740', 'text': 'it goes back to a liquid.'}, {'start': '174.741', 'end': '176.209', 'text': 'Look how cool that is!'}, {'start': '176.276', 'end': '179.712', 'text': 'And so I can grab a bunch\nhere, make a ball like this,'}, {'start': '179.779', 'end': '181.414', 'text': 'make it hard, hard, hard,\nhard, hard, hard, hard,'}, {'start': '181.481', 'end': '185.418', 'text': 'and then all of a sudden,\nit goes back to a liquid.'}, {'start': '185.485', 'end': '186.686', 'text': 'And you can see this.'}, {'start': '186.753', 'end': '191.591', 'text': 'If I put my hand\nin the bowl just like this,'}, {'start': '191.658', 'end': '193.326', 'text': 'it sinks to the bottom.'}, {'start': '193.393', 'end': '194.460', 'text': 'But what do you\nthink will happen'}, {'start': '194.527', 'end': '196.596', 'text': 'when I pull my hand\nup really fast?'}, {'start': '196.663', 'end': '197.764', 'text': 'One, two, three.'}, {'start': '198.665', 'end': '200.533', 'text': 'I picked up my entire bowl.'}, {'start': '200.600', 'end': '203.870', 'text': "Let's do that again.\nDo you see that?"}, {'start': '203.937', 'end': '206.506', 'text': "That's because when I do\nthat really, really fast,"}, {'start': '206.573', 'end': '211.144', 'text': 'it acts like a solid, capturing\nmy hand inside the bowl.'}, {'start': '211.210', 'end': '214.213', 'text': 'Ketchup is another\nnon-Newtonian fluid,'}, {'start': '214.280', 'end': '216.549', 'text': 'but it acts in the opposite way.'}, {'start': '216.616', 'end': '217.784', 'text': "So if you've ever tried to get"}, {'start': '217.850', 'end': '219.586', 'text': 'ketchup out of a glass bottle,'}, {'start': '219.652', 'end': '221.621', 'text': 'do you know the trick\nhow to get it out?'}, {'start': '221.688', 'end': '224.958', 'text': 'You have to hit the\nnumber on the side.'}, {'start': '225.024', 'end': '226.826', 'text': 'Why do they ask you to do that?'}, {'start': '226.893', 'end': '229.128', 'text': "Well, it's because you're\ntrying to add pressure,"}, {'start': '229.195', 'end': '232.799', 'text': "you're trying to add force\nto the non-Newtonian ketchup."}, {'start': '232.865', 'end': '234.834', 'text': 'Because when you add\nforce to ketchup,'}, {'start': '234.901', 'end': '236.436', 'text': 'it acts more like a liquid.'}, {'start': '236.502', 'end': '237.904', 'text': "And when you don't add force,"}, {'start': '237.971', 'end': '239.138', 'text': "when it's just\nsitting in the bottle,"}, {'start': '239.205', 'end': '240.473', 'text': 'it acts more like a solid,'}, {'start': '240.540', 'end': '243.142', 'text': "and it's harder to\nget outta the bottle."}, {'start': '243.209', 'end': '246.346', 'text': 'So you see, ketchup is the\nopposite of oobleck in that way.'}, {'start': '246.412', 'end': '250.550', 'text': 'When we add force to oobleck,\nit acts like a solid.'}, {'start': '250.617', 'end': '252.819', 'text': 'But when we add\nforce to ketchup,'}, {'start': '252.885', 'end': '254.554', 'text': 'it acts more like a liquid.'}, {'start': '254.621', 'end': '256.823', 'text': 'Quicksand is very similar\nto ketchup in that way.'}, {'start': '256.889', 'end': '259.158', 'text': "If you've ever heard of\nhow you survive quicksand,"}, {'start': '259.225', 'end': '260.259', 'text': 'what do you do?'}, {'start': '260.326', 'end': '262.061', 'text': 'You stop moving, right?'}, {'start': '262.128', 'end': '265.932', 'text': "That's because quicksand is\nanother non-Newtonian fluid."}, {'start': '265.999', 'end': '267.500', 'text': 'When you add force to it,'}, {'start': '267.567', 'end': '269.636', 'text': 'you are making it act\nmore like a liquid,'}, {'start': '269.702', 'end': '272.105', 'text': 'allowing you to sink\nfurther in the quicksand.'}, {'start': '272.171', 'end': '274.107', 'text': 'But if you just stay still,'}, {'start': '274.173', 'end': '276.676', 'text': "it acts more like\na solid and you don't sink."}, {'start': '276.743', 'end': '279.012', 'text': "That's the science of\na non-Newtonian fluid."}, {'start': '279.078', 'end': '282.248', 'text': 'So if I use my spoon\nand I just tap the top,'}, {'start': '282.315', 'end': '286.753', 'text': 'look at that,\nit acts like a solid.'}, {'start': '286.819', 'end': '289.956', 'text': 'But as soon as I slowly dip\nmy spoon into the oobleck,'}, {'start': '290.023', 'end': '292.158', 'text': 'it just sinks easily\nto the bottom.'}, {'start': '292.225', 'end': '293.993', 'text': 'If I move slow enough,'}, {'start': '294.060', 'end': '296.663', 'text': 'it just goes\naround quite easily.'}, {'start': '296.729', 'end': '299.065', 'text': 'And if I scoop it up like that,'}, {'start': '299.132', 'end': '301.934', 'text': "it feels like I'm\nscooping up a solid."}, {'start': '302.001', 'end': '304.804', 'text': 'But then when I bring it up,\nlook, it acts like a liquid'}, {'start': '304.871', 'end': '307.674', 'text': "'cause I'm no longer\nadding any force to it."}, {'start': '307.740', 'end': '309.542', 'text': 'So I have all these\ndifferent colors here.'}, {'start': '309.609', 'end': '311.511', 'text': 'Let me show you what\nelse we can do with this.'}, {'start': '311.577', 'end': '313.713', 'text': 'I made rainbow oobleck,'}, {'start': '313.780', 'end': '317.016', 'text': "and I'm just mixing them all\ntogether in a baking pan,"}, {'start': '317.083', 'end': '318.818', 'text': 'because it just, it\nlooks so much prettier.'}, {'start': '318.885', 'end': '321.154', 'text': "It's hard to get out because\nI'm trying to force it out,"}, {'start': '321.220', 'end': '323.990', 'text': 'and I forget that it acts like\na solid when you push on it.'}, {'start': '324.057', 'end': '326.859', 'text': 'Parents and adults, this one\ndoes get a little bit messy,'}, {'start': '326.926', 'end': '329.062', 'text': 'but I promise you,\nif you just let it dry,'}, {'start': '329.128', 'end': '331.230', 'text': 'it becomes really\neasy to clean it up'}, {'start': '331.297', 'end': '333.800', 'text': 'because it just becomes\ncornstarch again.'}, {'start': '333.866', 'end': '335.001', 'text': 'You can just vacuum it up.'}, {'start': '335.068', 'end': '336.436', 'text': 'Now, if you wanna\nkeep your oobleck,'}, {'start': '336.502', 'end': '338.237', 'text': 'just store it in an\nairtight container'}, {'start': '338.304', 'end': '340.306', 'text': "and put it in the fridge, and\nit'll last for over a week."}, {'start': '340.373', 'end': '342.608', 'text': 'Now we are going to\npour all of our oobleck'}, {'start': '342.675', 'end': '344.577', 'text': 'into this big vase.'}, {'start': '344.644', 'end': '345.712', 'text': "We're gonna try."}, {'start': '345.778', 'end': '347.647', 'text': '[upbeat music]'}, {'start': '347.714', 'end': '349.649', 'text': 'Look how cool that looks.'}, {'start': '349.716', 'end': '350.783', 'text': 'Go, oobleck, go!'}, {'start': '358.891', 'end': '360.460', 'text': '[upbeat music continues]'}, {'start': '360.526', 'end': '362.295', 'text': 'Beautiful.'}, {'start': '362.361', 'end': '363.930', 'text': 'That was definitely not close'}, {'start': '363.996', 'end': '365.665', 'text': 'to as much oobleck\nas I thought it was.'}, {'start': '365.732', 'end': '366.899', 'text': 'I can use all of this?'}, {'start': '369.335', 'end': '372.905', 'text': 'More oobleck! [chuckles]'}, {'start': '373.773', 'end': '375.408', 'text': 'I am the oobleck queen.'}, {'start': '375.475', 'end': '378.711', 'text': "Oh, that is so weird.\nIt's so weird."}, {'start': '378.778', 'end': '380.747', 'text': 'Let me add more\nfood coloring to it.'}, {'start': '380.813', 'end': '382.815', 'text': 'Oh, it feels so weird!'}, {'start': '383.850', 'end': '384.817', 'text': "When you're done\nwith your oobleck,"}, {'start': '384.884', 'end': '386.152', 'text': 'do not pour it down the drain.'}, {'start': '386.219', 'end': '387.520', 'text': 'It will clog your drain.'}, {'start': '387.587', 'end': '389.422', 'text': 'Make sure you put it in\na plastic bag, tie it off,'}, {'start': '389.489', 'end': '391.057', 'text': 'and just throw it in the trash.'}, {'start': '395.895', 'end': '397.430', 'text': 'Thank you for making\noobleck with me.'}, {'start': '397.497', 'end': '400.133', 'text': 'If you like this one, be sure\nto check out my bestselling'}, {'start': '400.199', 'end': '402.502', 'text': '"Stay Curious and Keep\nExploring" book series'}, {'start': '402.568', 'end': '405.304', 'text': 'for 99 more science experiments.'}, {'start': '405.371', 'end': '406.539', 'text': "I'm Emily Calandrelli."}, {'start': '406.606', 'end': '409.041', 'text': 'Subscribe for all things\nscience and space.'}, {'start': '409.108', 'end': '412.445', 'text': 'And remember, stay curious\nand keep exploring.'}, {'start': '412.512', 'end': '413.780', 'text': "I'll see you next time."}, {'start': '413.846', 'end': '416.716', 'text': 'Accessibility provided by the\nU.S. Department of Education.'}, {'start': '418.017', 'end': '421.120', 'text': "♪ Emily's Science Lab ♪"}]