What's Matter? - Crash Course Kids #3.1 - By Crash Course Kids
Transcript
| 00:09 | Hey , what's matter ? No , no , not | |
| 00:12 | What's the matter ? Obviously , since you're here with | |
| 00:15 | me , you're pretty awesome at the moment , You | |
| 00:17 | might have heard that everything is made of matter and | |
| 00:19 | that's true . You soccer balls , ipads , even | |
| 00:22 | your pet fluffy , all made of matter . So | |
| 00:25 | that's interesting . But what is matter exactly ? The | |
| 00:33 | scientific answer is matter is anything that has weight and | |
| 00:37 | takes up space . You already know about weight , | |
| 00:39 | right ? That's just how heavy something is . Like | |
| 00:42 | if you ever been to a doctor's office , the | |
| 00:43 | first thing they do is have you stand on the | |
| 00:45 | scale so they can measure how much you weigh as | |
| 00:47 | for taking up space . Another way of thinking about | |
| 00:50 | it is that all matter has volume . It simply | |
| 00:53 | fills the area it's in when you pour water into | |
| 00:56 | a glass . For example , the water's volume is | |
| 00:58 | the amount of space that it takes up in the | |
| 01:00 | glass . So all matter has volume and weight , | |
| 01:03 | but it sure doesn't all look the same . Well | |
| 01:06 | , that's because Matter comes in different forms or states | |
| 01:09 | , liquids are a state of matter that I'm sure | |
| 01:11 | you're familiar with . If you've ever poured yourself a | |
| 01:13 | drink while trying to watch tv , you might have | |
| 01:15 | noticed that liquids take up space because once the space | |
| 01:18 | inside your glasses full got right on the carpet . | |
| 01:23 | Sorry mom . You also know that water has weight | |
| 01:25 | . If you carry a water bottle as you drink | |
| 01:27 | from it , it gets lighter because you're removing water | |
| 01:30 | from it . Solids are matter too . Of course | |
| 01:32 | . Probably the most obvious kind rocks are solid and | |
| 01:35 | so is ice , which is just solid water . | |
| 01:37 | Soccer balls are solid ipads , your pet fluffy and | |
| 01:41 | every single guy in one direction and just like rocks | |
| 01:44 | , all those things have weight and take up space | |
| 01:46 | . Now . You know what's weird sometimes Matter can | |
| 01:49 | be seen or felt , but it's there like the | |
| 01:52 | air we breathe . Air is an example of gas | |
| 01:55 | , the third main state of matter . And I | |
| 01:57 | probably know what you're thinking . How do we know | |
| 02:00 | air or any gas really is there ? If we | |
| 02:03 | can't see it ? Well , we can prove it | |
| 02:05 | by doing an experiment science . Mm hmm . Let's | |
| 02:12 | start by asking the question is air matter because if | |
| 02:16 | it is it should take up space and have weight | |
| 02:18 | right to see if air takes up space . Look | |
| 02:21 | at . I can easily drop an empty balloon into | |
| 02:23 | this little box , but a full one won't fit | |
| 02:26 | . That's because the air that fills the space inside | |
| 02:29 | the balloon is bigger than the space inside the box | |
| 02:32 | . Now , does there have wait , let's try | |
| 02:34 | something else . Take two empty balloons and tape them | |
| 02:37 | to the ends of a meter stick . Then we'll | |
| 02:39 | hang the meter stick on a string so that it's | |
| 02:41 | perfectly balanced . Now let's see what happens if we | |
| 02:43 | blow up just one of the balloons and put it | |
| 02:45 | back on our meter stick , check it out the | |
| 02:48 | end with the full balloon sinks . It weighs more | |
| 02:50 | than the empty balloon because the air gives it extra | |
| 02:53 | weight . The balloon full of air will always weigh | |
| 03:00 | more than the empty one because there's matter in matter | |
| 03:04 | has weight and takes up space , whether it's a | |
| 03:06 | liquid , a solid or a gas . So listen | |
| 03:09 | , the next time someone tells you that something doesn't | |
| 03:11 | matter , you can tell them to their face that | |
| 03:15 | technically everything is matter and tell him , Sabrina said | |
| 03:18 | so . |
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