A2/ A3- Sand & Glass

Question 1

What are the 3 types of sand?
1.
2.
3.

Answer 1

1. Building sand.
2. Sharp sand.
3. Silver sand.

Question 2

What is building sand used for?

Answer 2

Brickwork.

Question 3

What is sharp sand used for?

Answer 3

Concrete.

Question 4

What are 2 characteristics of sharp sand grains making it good to be used in concrete:
1.
2.

Answer 4

1. Coarse.
2. Jagged.

Question 5

What is silver sand used for?

Answer 5

Grout between floor tiles.

Question 6

What are the 3 types of glass?
1.
2.
3.

Answer 6

1. Float glass.
2. Laminated glass.
3. Toughened glass.

Question 7

Sand is combined with minerals and _________________ at temperatures of 1700°C.

Answer 7

melted in a furnace

Question 8

What is the main ingredient of glass?

Answer 8

Silica (sand).

Question 9

What type of glass is for general purpose?

Answer 9

Float glass.

Question 10

What type of glass is for safety purposes?

Answer 10

Laminated glass.

Question 11

How is laminated glass shatterproof?
Because glass _________ are ___________ to a shatterproof __________.

Answer 11

layers
bonded
polymer

Question 12

Windows of a new restaurant are made from laminated glass.

Laminated glass is ___________. So ____________ can enter the restaurant for customers to look outside the windows.

Answer 12

transparent
natural light

Question 13

Why is toughened glass tempered?
To increase its ____________ and ____________________.

Answer 13

strength
impact resistance

Question 14

What are the 3 types of glass finishes?
1.
2.
3.

Answer 14

1. Clear finish.
2. Obscured finish.
3. Smart finish.

Question 15

What is a smart finished glass?

Answer 15

Glass that switches between a clear and obscured finish.

Question 16

What is a clear finished glass used for?

Answer 16

General windows.

Question 17

What is a obscured finished glass used for?

Answer 17

Bathroom windows.

Question 18

What is a smart finished glass used for?

Answer 18

Meeting rooms.

Question 19

What are 2 benefits of using smart glass for a mixed-used building including an office:

1. ________________ can be controlled to provide ____________ within office spaces.
2. _________________________ because of _______________________.

Answer 19

Transparency
privacy

Increased energy savings
light absorption

Question 20

Why would float glass not be appropriate for a ground floor facade of a teaching block?

Float glass is __________, so people could mistakenly ________ through it.
Float glass is __________, so it can __________ easily if it was knocked into.

Answer 20

very clear
walk

brittle
shatter

Question 21

Low emissivity glass reflects heat back to the source.
So what happens to the home?

Answer 21

It helps the home stay cooler in the summer.

Question 22

Low emissivity glass reduces energy use in a home.
So what happens to the home?

Answer 22

It reduces energy bills.

Question 23

Low emissivity glass reduces condensation.
Why?

Answer 23

Because the glass does not become cold.