Changes states

Select all the terms which describe the arrangement of the particles in this image

• Regular

• Close

• Random

• Far apart

How is the state of the substance in the image changing?

• Solid to liquid

• Gas to liquid

• Liquid to solid

As coconut milk is heated, bubbles can be seen in the pan. What is happening to the liquid?

• It is freezing

• It is condensing

• It is boiling

• It is melting

What state of matter is represented by this diagram?

• Solid

• Liquid

• Gas

What is done to chocolate to melt it?

• Break it into pieces

• Heat it up

• Cool it down

As chocolate absorbs energy during melting, what term can be used to describe this change?

• Decomposition

• Endothermic

• Exothermic

When melted chocolate turns back into a solid again, what happens to the thermal energy? 

• It is transferred to the surroundings

• It is absorbed from the surroundings

What is the name of the process which occurs on the surface of the sea, when water moves into the atmosphere?

• Condensing

• Evaporation

• Melting

• Boiling

If energy is removed from liquid water, what happens?

• It turns into a gas

• It freezes

• It boils

Which of the following is an exothermic change?

• Evaporating

• Melting

• Condensing

• Boiling