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Water
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Good morning, boys and girls. How are you today? I hope that everyone is okay and ready for a new natural science class.
00:00:00
So today we are going to talk about water.
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So if you have your book, you can open your book on page 8 and 9.
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And if you are going to use the digital version of the book, you can open this book on pages 80 and 81.
00:00:19
okay so let's going to talk about water as i said water is an example of matter and water has
00:00:29
three main characteristics so let's going to see the characteristics so water is odorless
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tasteless and colorless oh these words are very difficult and new for us so let's going to explain
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these words little by little and step by step. The first one, OTHERLESS. Let's go
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to see the meaning of OTHERLESS. OTHERLESS means no smell. So if you take a
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glass of water and you smell this glass of water you can see that there is no
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smell so water is odorless ok so no smell if you have also in the kitchen the
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possibility to smell a glass of orange juice you can see the difference so
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please if you can take a glass of water and a glass of orange juice you can see
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the difference right now let's going to analyze the second word tasteless so tasteless is means
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no taste so if you have your glass of water and you drink a little bit of this water you can see
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that it's no or you can feel that it's not salty or it's not sweet so the taste is nothing so no
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taste for water and if you have your glass of orange juice for example you can see that this
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the taste is orange so the taste the taste is different between the orange juice and water
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and finally colorless maybe is the easiest word so means no color so as you can see
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if you have your glass of water it's transparent it's no color on it and if you see the glass of
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orange juice obviously it's orange so as a review as a quick review the three main characteristics
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of water are odorless tasteless and colorless okay so it's going to continue and
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we can find water in the three states of matter so this means we can find water
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solid solid water we can find liquid water and we can find gas water okay even in at home
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it is easy to find the three states of water. So let's going to see the main characteristics of
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water is in a gas state at temperatures over 100 degrees. This means that the temperature is more
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than 100 okay over the word the word over means more than 100 okay so imagine if you are helping
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in the cook in the kitchen and you put some water on the fire and you can see some vapor
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is because this water is over 100 degree so this water is getting into gas okay
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Next, so water is in a liquid state between 1 degree and 99 degrees.
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OK, so this is the most common state of water.
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So if you open the tap, you can find liquid water.
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OK, and finally, water is in a solid state at temperatures below zero degrees.
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So below means less than zero.
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So if you put some water into your freeze in the kitchen, you can have solid water.
00:04:53
- Subido por:
- Patricia D.
- Licencia:
- Reconocimiento
- Visualizaciones:
- 82
- Fecha:
- 25 de abril de 2020 - 19:50
- Visibilidad:
- Público
- Centro:
- CP INF-PRI NTRA. SRA. DE LA MILAGROSA
- Duración:
- 05′ 05″
- Relación de aspecto:
- 4:3 Hasta 2009 fue el estándar utilizado en la televisión PAL; muchas pantallas de ordenador y televisores usan este estándar, erróneamente llamado cuadrado, cuando en la realidad es rectangular o wide.
- Resolución:
- 960x720 píxeles
- Tamaño:
- 30.03 MBytes
