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Welcome everybody to this unit, unit 5, water and weather.

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You know that all living things need water.

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Look at the zebras, look at humans, look at sheeps and look at the dog.

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But you know that also plants need water.

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So remember, all living things need water.

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Water has no smell.

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I can't smell anything. Water has no taste. I can't taste anything. And water has no color.

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Look at the picture. What color is this? Is it white? Is it blue? Is it gray? No, water has no color.

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What three forms can water take? It can be solid, liquid and gas. We usually drink

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water as a liquid but we can turn it into solid and we can turn it into gas.

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How? Let's see it. If we take liquid water and we put it here in the freezer we can

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turn liquid water into solid. This is an ice cube and this is solid water. Now what happens if we

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heat water? That it turns into gas. Look at here. We have boiling water here. This smoke that we can

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see here is gas water okay this is not smoke this is what this is gas water we can find these three

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forms of water in nature let's see how this happens look this is liquid water the sun

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heats liquid water and turns it into gas water the clouds are gas water the wind makes the cloud move

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when they are cold water precipitates into liquid water that is rain or into solid water

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that it's snow, okay? Here on top of mountains we can find solid water, okay? Then the water

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turns into liquid again and it goes to the seas through rivers and streams, running off and

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through round water. Again, we have liquid water here. The sun hits the water, it turns into gas,

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then it rains or it snows, we have liquid water or solid water, then it goes again to the seas

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in form of liquid water through the rivers and streams, running off and through groundwater,

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and it starts again, okay? This is the water cycle. Water is all around us, have you noticed?

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most of the water is in the ocean it is salt water this is salt water this is salt water

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this is salt water and of course this salt water but water in rivers and in lakes is fresh water

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This is the water that we can drink, fresh water. Water in puddles, in ponds, streams

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and wetlands is also fresh water. Water is very important for us. Don't let this

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happen please, it's very important for us. See you next week, bye bye!