Frosh PhySci Melting Quiz

Question 0

F -

Explain why melting occurs

Answer 0

A solid gains energy turning it into a liquid

Question 1

F -

The process in which a solid changes to a liquid is called__________

Answer 1

Melting

Question 2

F -
Which of the following statements about melting is true?
a- Melting is a chemical change
b- Melting is a change of state
c- Melting changes the chemical properties of matter
d- Some substances do not melt no matter how hot they become

Answer 2

b- Melting is a change of state

Question 3

T/F Melted rock below the Earth’s surface is known as lava

Answer 3

False It is called magma

Question 4

What happens to melted rock on the earth’s surface?

Answer 4

It cools down and turns into a solid

Question 5

F -

The temperature at which a substance melts is called it’s _________

Answer 5

Melting point

Question 6

F -

T/F The melting point of a substance is the same as its freezing point

Answer 6

True Changes state either way at that temperature

Question 7

Which of these substances has the lowest melting point?
a- iron
b- gold
c- water
d- oxygen

Answer 7

b- gold ???????? Check this answer

Question 8

Why are the earth’s glaciers melting? What are some effects of this change?

Answer 8

Global warming Raised sea levels, damage to ocean life

Question 9

What role does melting play in the formation of alloys?

Answer 9

?????