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Natural Science Unit 5 What is matter?
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Natural Science, Unit 5. Matter, Materials, and Forces.
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First, watch this video.
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Hey, what's matter?
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No, no, not what's THE matter.
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Obviously, since you're here with me, you're pretty awesome at the moment.
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You might have heard that everything is made of matter.
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And that's true.
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You, soccer balls, iPads, even your pet Fluffy.
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all made of matter. So that's interesting. But what is matter, exactly?
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The scientific answer is matter is anything that has weight and takes up space. You already know
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about weight, right? That's just how heavy something is. Like if you've ever been to a
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doctor's office, the first thing they do is have you stand on the scale so they can measure how
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much you weigh. As for taking up space, another way of thinking about it is that all matter has
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volume. It simply fills the area it's in. When you pour water into a glass, for example,
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the water's volume is the amount of space that it takes up in the glass.
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So all matter has volume and weight, but it sure doesn't all look the same. Well, that's
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because matter comes in different forms, or states. Liquids are a state of matter that
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I'm sure you're familiar with. If you've ever poured yourself a drink while trying
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to watch TV, you might have noticed that liquids take up space, because once the space inside
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your glass is full. Gah! Right on the carpet. Sorry, mom. You also know that water has weight
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if you carry a water bottle. As you drink from it, it gets lighter because you're removing
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water from it. Solids are matter too, of course, probably the most obvious kind. Rocks are
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solid, and so is ice, which is just solid water. Soccer balls are solid, iPads, your
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pet Fluffy, and every single guy in One Direction. And just like rocks, all those things have
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weight and take up space. Now you know what's weird? Sometimes matter can't be seen or
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felt, but it's there. Like the air we breathe. Air is an example of gas, the
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third main state of matter, and I probably know what you're thinking. How
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do we know air, or any gas really, is there if we can't see it? Well, we can
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prove it by doing an experiment. Science!
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Let's start by asking the question, is air matter? Because if it is, it should
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take up space and have weight, right? To see if air takes up space, lookit, I can easily
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drop an empty balloon into this little box, but a full one won't fit. That's because
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the air that fills the space inside the balloon is bigger than the space inside the box.
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Now, does air have weight? Let's try something else. Take two empty balloons and tape them
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to the ends of a meter stick. Then we'll hang the meter stick on a string so that it's
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perfectly balanced. Now let's see what happens if we blow up just one of the balloons and
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put it back on our meter stick. Check it out. The end with the full balloon sinks. It weighs more
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than the empty balloon because the air gives it extra weight. The balloon full of air will always
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weigh more than the empty one because air is matter and matter has weight and takes up space,
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whether it's a liquid, a solid, or a gas. So listen, the next time someone tells you that
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something doesn't matter, you can tell them to their face that technically everything is matter.
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And tell him Sabrina said so.
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We can find matter in three different states.
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Solid, liquid, and gas.
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Ice is solid.
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Water is liquid.
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Air, or water vapor, is gas.
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Do you think the air is matter?
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Yes, we can't see the air but it is matter.
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Air is matter and matter has weight and takes up space whether it's a liquid, a solid or a gas.
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Time to work! Write the name of three solids, two liquids and one gas.
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- Subido por:
- Maria Del Mar A.
- Licencia:
- Reconocimiento - No comercial - Compartir igual
- Visualizaciones:
- 524
- Fecha:
- 15 de abril de 2020 - 17:17
- Visibilidad:
- Público
- Centro:
- CP INF-PRI CARMEN HERNÁNDEZ GUARCH
- Duración:
- 05′ 17″
- Relación de aspecto:
- 1.78:1
- Resolución:
- 1920x1080 píxeles
- Tamaño:
- 108.23 MBytes