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How is glass made?

How is glass made?

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Could an artist draw a picture using fire? How? Hint: When wood burns, it becomes darker, almost black.
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This special tool burns wood! The tip of it is extremely hot. The dark lines in these drawings are the burnt areas.
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It got so hot in this guy's car that he was able to cook breakfast! How else could you cook food without fire?
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These people are using the heat from lava to cook steak and hot dogs. Looks like it works well!
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Something strange is going on here. What do you think is happening to all this mud?
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This mud is boiling! Lava is so hot that even if it's deep underground, it can still boil the mud on the surface!
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Check out these geysers. What do you think is causing the water to shoot out like that?
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Underground lava boils water and makes steam. When the pressure is too much, the water erupts like a volcano!
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Here’s one last surprising thing about heat! What do you think will happen once the candles are lit?
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Heat can make things move! The heat from the fire pushes air up and makes the paper spin! Try this with an adult!
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Hot air balloons work the same way! Fire heats up the air inside the balloon, making the air and balloon rise up!
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Lesson narration:

Overview

In this mini-lesson, students see how glass is made, and the incredible things that can be done with it!

Exploration

5 mins

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