HOW TO MAKE GLASS
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Materials:
- Sand
- Limestone
- Ash
- Oven with very high temperature (to make sand, limestone, and ash become liquid)
- Special oven (to make the jar become stronger)
- Jar-shaped mould (to push air force the glass up the sides)
- First of all, put the sand, limestone, and ash into the oven with very high temperatures until they become a liquid.
- Then, pour the liquid into jar-shaped mould.
- Next, push the air into jar-shaped mould forcing liquid up the sides.
- After that, put the jar in a special oven until it becomes stronger.
- Finally, if the jar cold, it is ready to use.
- What does the text tell us about
- Why does the writer write the text
- How many instruments do we need to make glass
- What are the main materials to make glass
- Why should the main materials be put in an oven with very high temperature
- What must we do after the sand, limestone, and ash become liquid
- Which instrument is used earlier, oven with very high temperature or special oven
- What should we do before push air into the jar-shaped mould