So now, we've seen the raw ingredients melting in the oven, almost like toffee. Curious Cat, an animated character, helps two children find out more about how glass is made. And then it all melts. How hot do you think it was when they melted? This clip will be relevant for teaching Science at KS1 and KS2 in England and Foundation and KS2 in Wales.

We've got our sand--. The sand is mixed with other ingredients. Underground lava boils water and makes steam.

BBC Teach > Primary Resources > Science KS1 / Science KS2 > Curious Cat. We're putting a picture onto the glass window. And you can see it going past. So, the liquid glass floats on top of the liquid metal and doesn't mix together, so it stays the glass stays perfectly flat. CURIOUS CAT: What do you think

'Then the glass is cut into different sizes. And that's how glass is made out of sand. Off you go. You can stop in here.

CURIOUS CAT: And then, when it gets to these little wheels, it just gives it a little knock and it just breaks perfectly along that line, and then it moves away. When these ingredients are heated together, they form a liquid glass.

It could provide a discussion point around the strength of flat and round objects and their uses. Two children meet animated character Curious Cat, who asks them if they would like to find out how paper is made. So what happens next is that that spreads across a big bath, which is full of liquid metal, and that substance, that gloopy substance, it floats along the top, and spreads out so that it's perfectly flat. SUSAN: You see, it scores across the glass with these little wheels. Two children find out how TV programmes are made and how they reach your TV at home. When GIRL: Look at that.

How was your journey? 'That's brilliant. So you've seen the raw ingredients go in one end, and glass come out the other end. Can you see what's happening? This is from the series: Curious Cat Wool, Glass, Paper. Do you want to find out how glass is made? SUSAN: SUSAN:

SUSAN: Now you know all about making glass.

breakfast!

And so the next stage is to cut it into pieces. SUSAN: What a clever machine.'. It's gonna come up and break it. Okay. SUSAN: SUSAN: So, this is where all the raw ingredients are fed into the oven and melted, so it has to be very, very hot. Two children meet Curious Cat, an animated cat who asks them if they would like to find out what happens to our sewage once it leaves our homes. BOY: Pupils could investigate the same objects or size of objects made from different materials and think of an investigation to test their strength. CURIOUS CAT: So this is our liquid glass. What an exciting journey you've had.
CURIOUS CAT: This video is used at the Columbus Museum of Art to show how glass can change from solid to fluid and back again. steak and hot dogs. Locked. 'This long piece of glass is far too big to be used in our homes. The children take a trip to a glass making factory and learn about the raw materials used to make it. air inside the balloon, making the air and balloon rise up! Okay? What do you think is causing Let's go. the water to shoot out like that? These people are using the heat from lava to cook So, let's see what happens when we pour the glass onto the liquid metal. This is demonstrated in a laboratory using oil and water.

Also Foundation and KS1 in Northern Ireland and Early/1st/2nd levels in Scotland. With the help of Curious Cat, two children visit a brick factory to find out they bricks are made.

the pressure is too much, the water erupts like a volcano! Pupils could investigate how different shapes are made out of glass. Whoa. BOY: 'For the glass to get hard, it needs to cool down very slowly.'.

CURIOUS CAT: 6:10 Why is the sky blue?

That's its name. To find out what happens to the sand, Susan will show you around the glass factory. It's hard to see, isn't it? These pictures were taken when the outside This is what it uses to cut it. How else could you cook food without fire? 'They have to cool it down slowly, or it would break. Ready? These things melted just from being in the sun! Eleven. Here’s one last surprising thing about heat! CURIOUS CAT: And then it's gonna go along, and those wheels are just gonna break it out. 'The furnace needs to be super hot.

Hot air balloons work the same way!

Yeah? How old do you think this machine is?

Try this with an adult! And put into a big hot oven, and heated up until it is extremely hot. SUSAN:

This machine, it is 11 years old. do you think will happen once the candles are lit? If you want to step up on here. SUSAN: Check out these geysers. CURIOUS CAT: Because it's so clear. ', SUSAN: ', GIRL: is happening to all this mud? There it is. All rights reserved. So just like this oil and water, the glass in the furnace floats on top of the liquid metal, and stays completely flat. Now it's time to say goodbye. To make objects like vases, craftsmen blow into a glob of liquid glass with the help of a long tube. This liquid glass is made into sheets by cooling and flattening. With the help of Curious Cat, two children visit a crayon factory to find out how they are made. Watch.

Do you want to have a look? Glass is made from a mixture of sand, lime and soda.

They take a trip to a glass making factory and to start learn about the raw materials used to make it, such as sand, soda ash and limestone. CURIOUS CAT:

An educational video for kids. temperature got up to 120°F (48°C)! Then it goes really smooth and flat. CURIOUS CAT: So what we're gonna do is go to the lab and we're gonna do a little experiment so you can see what I mean, okay? The children watch the raw material go in and the glass come out after which it is cut into different sizes. ', BOY: Very rarely a video will fail to completely load in your browser. Well, glass starts off as sand.

This mud is boiling!

This video is having trouble loading. Have fun and stay curious! What It got so hot in this guy's car that he was able to cook It may take us longer than normal to respond during back-to-school time. No, sand is just the main ingredient that goes into glass, but it also has lots of other things in it, like soda ash and limestone. So it goes like-- it's almost like toffee. Now, from this point, the glass is one continuous ribbon right back to that bath of liquid metal. So it needs to be cut down.'. And then it is stored until it is needed.'. Hello, children. Now, let's see how the real glass is doing.'. This special sand comes from all over the world.'. And this water is our liquid metal. SUSAN:

CURIOUS CAT: Curious Cat, an animated character, helps two children find out more about how wool is made. CURIOUS CAT: Do you wanna go and have a look? So, this is the first time that we can actually see the glass coming out. Because if we cool it too quickly, then it could break. And then that piece of glass goes away.

SUSAN: CURIOUS CAT: That cutting bridge that's going across there, it makes a line-- a little line in the glass across. 'Glass is made from sand, soda ash, and limestone, which are three minerals that come from the ground. SUSAN: This is what it looks like inside. Curious Cat, an animated cat, asks two children if they’d like to find out how biscuit tins are made. 'We saw glass being made out of sand. GIRL: There it is. So at this stage, it's about half as hot as it was and it's still quite soft. SUSAN: And our soda ash here, and limestone. underground, it can still boil the mud on the surface! There are mysteries all around us. You may have lost your Internet connection. The artists at Jason Antol Studios in Columbus, Ohio, graciously performed the demonstrations on camera. air up and makes the paper spin! 'Wow. The heat from the fire pushes It looks like see-through paper.

That's right. See it? SUSAN: Something strange is going on here. Two children meet Curious Cat, an animated cat who asks them if they would like to find out how glass is made. Read about our approach to external linking. How is glass made? The different stages and processes involved in making a flat pane of glass are seen, including the 'float glass process', which makes the molten glass flat and smooth. So here, we're gonna see the glass being stacked onto the pack. What are you up to? CURIOUS CAT: And at this stage, we're also checking for any other faults in the glass, like stress breaks or bubbles, which are obviously no good. 'Once the glass is cut, it travels along to a machine that uses sockets to gently pick up the glass and stack it, ready to be used in our homes.'. 'A bit like the sand you might find on a beach. Like, watch, watch here. This episode is locked Invite 5 or more friends and we'll unlock all previous episodes as a thank you! Do you want to have a look? 'Then it's poured onto a bath of liquid metal, but they don't mix. Good thing you have glass windows in the classroom.
If you look up ahead, you'll see the line go past.

Remember? SUSAN: Fire heats up the These big machines are used to lift up the packs of glass and move them around, and put them on the lorry, so that it can be delivered to our customers. In fact, it's 1,600 degrees Celsius. Watch the video to discover the answer and don't forget to vote for next week's question. SUSAN: It's called Claritude. So, let's pretend that this oil is our liquid glass, which is made up of our different raw materials.

Up there. Heat can make things move! They are mixed together, then put into a very hot oven called a furnace.'. Hello, children. This clip could be used as a stimulus to discuss how different materials are made. Well done.

So what's happening? Two children meet Curious Cat, an animated cat who asks them if they would like to find out how electricity is generated. CURIOUS CAT: Looks like it works well! © Copyright 2020. Try to. ', GIRL: SUSAN: Right, here.

Lava is so hot that even if it's deep This fine sand is needed because it's very pure, and does not contain any other unwanted chemicals. The glass floats on top. But to make clear glass, a special sand called Silica Sand is used. SUSAN: SUSAN: