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How is a solid different from a liquid in shape and volume?

solid keeps its shape, liquid molds to shape of container

How are liquids and gases similar in shape and volume?

liquids & gases mold to shape of container and are always moving

How are liquids and gases different in the amount of space
between particles?

gases move faster

How does the behaviour of particles change as energy is added to
them? How does the behaviour change as energy is lost?

heat- faster; less heat- less fast

How does the space between particles change as energy is added
to them? How does the space change as energy is lost?

energy added
-molecules move faster
-spread out- less dense
-more space between
energy lost
-molecules move slower
-more compact, dense
- less space between

What is the difference between a model and a theory?

A model in science is a way to think about
and interpret natural events and objects. A theory provides a scientific
explanation based on the results of experimentation.

What happens to matter when its temperature increases?

An increase in the temperature of matter generally results in a decrease in its density, with the exception of water

What happens to matter when its temperature decreases?

Less density

What is the difference between heat and temperature?

Heat is heat transfer, or how quickly energy moves.

Temperature is the potential for energy transfer.


a reaction between two or more organic molecules leading to the formation of a larger molecule and the elimination of a simple molecule such as water or alcohol.


matter or the quantity of matter evaporated or passed off in vapor.


an expanded, dilated, or enlarged portion or form of a thing


the quantity of matter as determined from its weight


to have a solid melt into a liquid by increasing the temperature


to change from a liquid to a solid form


the state of a solid changing directly into a gas


the amount of space, measured in cubic units, that an object or substance occupies.

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