Understanding States of Matter

What are the three main states of matter?

• Solid, Heat, Gas

• Solid, Liquid, Gas

• Liquid, Gas, Fire

• Water, Ice, Gas

What is a solid?

• Something that has no definite shape

• Something that flows easily

• Something that has a definite shape and volume

• Something that can only be seen, not touched

What are the properties of a liquid?

• Hold its form and shape

• Flows and forms a pool

• Flows, can spread out and be squashed

What is a gas?

• A state of matter that has no fixed shape or volume

• A solid that melts

• A liquid that evaporates

• Something that has a fixed shape

What happens to water when it freezes?

• It turns into a liquid

• It turns into ice (solid)

• It evaporates into steam

• It becomes gas

What happens to particles in solids when they are heated?

• They come closer to each other and become gas

• Nothing happens with them

• They begin to move away from each other and turn into liquid

Which statement explains why we can pour solids like sand, salt, and sugar?

• They are liquids

• They are made up of small particles that can flow like a liquid

• They are gases that turn into solids when poured

Which statement describes 'melting point'?

• The point where a solid melts and forms a liquid when heated

• The point when gases turn into liquid

• The point when liquid starts to turn into solid

Which state of matter can be squashed into a container?

• Liquid

• Gas

• Solid

What is melting?

• When matter changes its state from gas to liquid

• When matter changes its state from solid to liquid

• When matter changes its state from liquid to gas

• When matter changes its state from liquid to solid