Reading Checks pgs. 249, 251 & bolded terms
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Created by:
annabananacheez on November 27, 2010
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17 terms
Terms | Definitions |
|---|---|
 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. |
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