The Particle Theory

The particles of a solid are:

• Bound close together

• Allowed to flow freely

• Move to fill up the container they're in

• Made of hard objects

An example of a solid is: (Bonus points for creativity)

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An object _______ when it changes from a solid to a liquid.

• Flies

• Melts

• Goes home

• Floats

Sublimation refers to when an object:

• Changes from liquid to a gas

• Changes from gas to solid

• Remains as a liquid

• Changes from solid to a gas

The particles of liquids are: (multiple answers apply)

• Still bound together

• Slide over one another

• Held very tightly by bonds

• Wet

If an object remains at the bottom of a container and takes the shape of the container as well it is a _____.

_______ is when a liquid turns into a solid.

• Condensation

• Precipitation

• Freezing

• Melting

The scientific term for when a liquid turns to a gas is:

• Vapourisation

• Boiling

• Heating

• Absorption

The particles of a gas:

• Move around in straight lines in any direction

• Have attractive forces between them

• Collide off one another

• Move to fill up a container

• Stick to the top of a container

The process where a gas turns to a liquid is:

• Condensation

• Sublimation

• Rectification

• Absorption