Which is the best material for making a car windscreen?give a reason for your answer. (This question requires the knowledge of light and materials)

what is this object made of? select the right answer

What is this part of the scissors made of?

What is the pages in the book made of?

What is the desktop made of?

What is the cover of a book made of?

which Is a poor-conductor of heat? (To get this right, you have to tick ALL poor conductors of heat)

which Is a good conductor of heat? (To get this right, you have to tick ALL good conductors of heat)

The following shows a picture of a hammer. The part marked X should be made of ______________. State a reason for your answer.

which material is best to make a window? Explain your answer.

John wants to build a building. What material should he use?

John wants to make a new pair of spectacles. What material should he use to make the lenses of the spectacles?

(a)What should part X be made of? (b) state a disadvantage of this material.