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Since glass is a poor conductor of heat, it may crack on uneven heating. Therefore, in order to heat it evenly, you have to rotate the glass tubing.
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Rubber and glass which become softer as they are heated are examples of?
Rubber and glass which become softer as they are heated are examples of crystalline solids
Will glass expand when heated?
No. Heating and cooling do not change the mass of an object. Changes in temperature very often change the volume of an object, however, which means that the density of the object changes. Heating usually causes an object to expand, which means that its density goes down. Its mass, and therefore its weight, does not change.
How are Kazoos made?
Plastic - injection mold. Metal, sheet metal presses, wood - hand carved. Glass - tubes as heated and altered in a glass blowing method.
Are solids fluids?
No. A great illustration is glass. The only reason that we can see through glass is because it is a fluid; the proof being that when an eighty year old piece of glass is examined, flow can be detected because the glass sheet is thicker at the bottom.
What will happen if a ball of glass heated?
It will get hot. When sufficiently hot it will start glowing orange-red and start melting.
Does glass looked different when heated opposed to glass not heated?
Yes, because if glass is heated it breaks, if glass is not heated it doesn't break.
Why did the glass tube breakcracks when it is heated?
Because it is not rotated while heating. As a result one side gets much hotter than another. This results in the two sides expanding to different extents. This leads to stresses which then crack the glass tube.
Why is a yellow flame observed when glass rod heated?
Sodium of course...
In what ways can the properties of glass be changed?
It can be heated and change appearance, can be painted or stained, can be hardened.
Is dirt in the making of glass?
no, sand is heated to make glass :) youtwat.^.^
What is the purpose of a wire gauze to a Bunsen burner?
It is to prevent direct contact of the glass with the flame of the Bunsen burner. This lowers the possibility of the glass shattering when being heated Read more: What_is_the_purpose_of_the_wire_gauze_placed_over_a_bunsen_burner
Type of glass that would be less likely to crack when heated?
it is the tempered glass!
What is used to make glass?
sand is grinded and then heated and left to moult into glass
How is glass processed?
Glass is made by sand that is heated at extereme hot tempetures
How do you know when to bend the glass tube?
When the heated glass first begins to sag.
What will happen if a glass ball is heated?
it will shatter
What happens if silicon dioxide is being heated?
Depending. When Granular Silicon Dioxide is heated, glass, is formed. (Also must be pressurized) silicon dioxide actually has a relatively high boiling point at 1650.
