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Okay, class, now let's continue our work on page 79 of your natural science book.

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On exercise four, you will look at each picture and think and tick, is the picture correct

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or incorrect?

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tick the box if it is correct and do not tick if incorrect. First we have a

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picture of bricks growing on a tree. So you must think bricks. Are bricks man-made

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or natural. We know that on trees, flowers and fruits can grow, which are natural.

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On trees, bricks do not grow, so that will be incorrect. Next, we have a man making

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bricks. He is pouring hot stone into the mold and he is creating new bricks. You

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see this is a human, a man, and so he is making something and this is correct.

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Next, we have the man. Again, a different man. Look at the man. Is he making a

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material? Yes or no? Please tick if you think this is correct or incorrect way

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to man make a material. Finally, look at the bush. We see that there is glass,

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glass cups in the bush, and we know that glass is a man-made material. Glass does

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not grow in a bush. Bushes are natural and so they cannot grow glass. So this

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would be, what do you think? Correct or incorrect? It is incorrect. Next let's

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move to exercise number five. Here we have wool, plastic, cotton, wood, and glass.

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So I will explain each one shortly to you so that you can classify in natural

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or man-made depending on how each material is created. So first we remember from this last page

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that wool is a natural material. It comes from sheep and other animals. So wool comes from

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nature. Next we have plastic and plastic is hard or soft and people make plastic to use it

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for carrying or for holding things and it can be used to create many different things.

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So plastic is man-made. Next, cotton. Cotton is made from plants. You can see here that this is a

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cotton plant. So is cotton man-made or natural? Please write cotton in man-made or natural,

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depending on what you think. Finally, wood. Wood comes from trees and trees are a type of plant.

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So because wood comes from a tree, which is natural, it is going to be a natural material.

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Wood is a natural material. Finally, we have glass. Glass is hard and transparent, which

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means that we can see through glass. We can see with our eyes through glass. So glass

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is something that man makes out of using heat from sand to make glass. So glass will be

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man-made. Finally, we have exercise six. So please just use this chart as you filled in

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wool, plastic, cotton, wood, and glass to write natural or man-made. Wool is a

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material. What do you think? Natural or man-made? Please write in natural next to wool

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and continue with plastic, glass, and wood. Thank you.