Year 6 Science Unit 2 - Materials

Select all statements that describe about melting point?

• When liquid change to gas

• Is a property of a substance

• The temperature at which a solid becomes a liquid

• When solid becomes liquid

Boiling point is the temperature at which particles throughout a liquid have enough (a)   to change to a gas.

Liquids change to gases when they boil and (a)   .

Evaporation can occur at (a)   temperature

Evaporation happens when particles on the (a)   of a liquid change into gas.

Which of the below are properties of gases?

• high boiling point

• takes up space

• has mass

• cannot be compressed

Heat can be transferred from one object to another. This type of energy transfer is called (a)   .

Substances and materials that conduct heat well are called ________ ________.

(a)  

Materials and substances that are able to conduct electricity are called __________ _________.

(a)  

When solid melts to become liquid water, it had undergone (a)   change.