Matter

If enough heat is taken away from a container of water, what will happen to the water?

• It will begin to boil.
• It will become a solid.
• It will turn into a gas.
• It will increase in weight.

What happens when a piece of wood burns?

• A physical change takes place.
• A chemical change takes place.
• The wood loses its gravity.
• The wood loses its inertia.

Kim puts an ice cube in a beaker and it melts. This is a good example of:

• a physical change.
• a chemical change.
• an experiment.
• an analysis.

To study diseases that might be contained in a patient's blood, which tool might a doctor use?

• telescope
• microscope
• electromagnet
• intense light source

If a repairman is working on a small watch, why might he need to use a magnifying glass?

• to see the tiny parts of the watch
• to increase the light on the watch
• to make the watch smaller
• to correct his vision

An example of a liquid turning into a gas is

• a chocolate bar melting.
• an ice cream cone dripping.
• a stick of butter getting warm.
• steam escaping from a cup of hot chocolate.

What happens when water boils?

• The solid water becomes a liquid.
• The liquid water becomes a solid.
• The liquid water becomes a gas.
• Water vapor becomes liquid water.

An example of a solid turning into a liquid is

• water vapor turning into water.
• water turning into water vapor.
• water freezing into ice.
• ice melting into water.

If you dissolved a lot of salt in some water in a large dish and put the dish in bright sunlight on a hot day, what would be left in the dish after a long time?

• dry salt
• water with no salt
• the same salty water as before
• nothing

Which of the following is an example of MELTING?

• stirring some sugar in water until you cannot see the sugar
• heating a pan of water until the water is all gone
• heating a block of ice until the ice turns to water
• cooling water in the freezer until the water becomes solid.