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Reading Checks pgs. 249, 251 & bolded terms

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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.
condensation
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.
evaporation
matter or the quantity of matter evaporated or passed off in vapor.
expansion
an expanded, dilated, or enlarged portion or form of a thing
mass
the quantity of matter as determined from its weight
melting
to have a solid melt into a liquid by increasing the temperature
solidification
to change from a liquid to a solid form
sublimation
the state of a solid changing directly into a gas
volume
the amount of space, measured in cubic units, that an object or substance occupies.