Reading Checks pgs. 249, 251 & bolded terms
|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|
|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
-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.|