Unit 2 Materials and their structure

What is state 1, and what is state 2?

• Gas and Liquid

• Gas and Solid

• Liquid and Solid

• Liquid and Gas

Properties of matter:

1. The particles are close together with no regular arrangement.

2. The particles can move about, and slide past each other.

3. The particles have no definite shape, they depend on the shape of thecontainer.

What is the state of matter that has all characteristics above?

• Gas

• Solid

• Liquid

• Plasma

The formation of clouds from many sea waters on a hot shiny day is an example of....

• Condensation

• Sublimation

• Vaporisation

• Evaporation

Which changes that shows temperature increasing?

• P and R

• S and R

• P and Q

• Q and S

The temperature at which solids change into liquids is called....

• melting point

• freezing point

• boiling point

• steam point

The state of water when its temperature is 250 degree Celsius is....

• solid

• liquid

• gas

• plasma

What happens to the gas molecules when the temperature of gas increases?

• They move slowly

• They move more quickly

• They vibrate slowly

• They remain at the same position.

If the tops were removed from the cylinders, the following would happen:

• The solid would fly out of the container
• The liquid would fly out of the container.
• The gas would fly out of the container.
• They ALL would fly out of the container.

Liquid matter takes the shape of _______.

• a gas
• water
• a pet
• Its container

When a beaker of water is heated its volume increases a little. What is happening to the particles in the liquid?

• They are moving faster

• They are getting smaller

• They are getting bigger

• They are moving slower