resources

Question 1

what is soda lime glass made out of

Answer 1

sand, sodium carbonate and limestone

Question 2

how do we make soda lime glass

Answer 2

we mix together sand, sodium carbonate and limestone
heat this mix in a furnace until it melts
when it cools it solidifies into any shale that we want

Question 3

what is a problem with soda lime glass

Answer 3

it has a relatively low melting point which limits its uses

Question 4

what is soda lime glass used for

Answer 4

glass bottles and windows

Question 5

what is the difference between borosilicate glass and soda lime glass

Answer 5

borosilicate glass has a higher melting point than soda lime glass

Question 6

what is borosilicate glass used for

Answer 6

objects that require heating such as kitchenware and labware

Question 7

what is borosilicate glass made of

Answer 7

sand and boron trioxide

Question 8

how do we make borosilicate glass

Answer 8

melt a mixture of sand and boron trioxide

Question 9

uses of clay ceramics

Answer 9

pottery and bricks

Question 10

how do we make clay ceramics

Answer 10

clay is a mineral we can find in the ground (unlike glass)
when it is wet it can be shaped, it is then heated in a furnace to harden

Question 11

how are most composites made

Answer 11

most composites are made by combining two different materials

Question 12

what are the two types parts of a composite

Answer 12

reinforcement- fibres or fragments of one material
the reinforcement is then surrounded by a matrix or binder material

Question 13

what is the key feature of composites

Answer 13

they have different properties than the materials in them

Question 14

qualities of carbon fibre composite

Answer 14

it is very strong and light, this makes it extremely useful in cars or in aircraft parts for example

Question 15

what is reinforced concrete

Answer 15

steel bars surrounded by concrete reinforced concrete is extremely strong and is used to make buildings