Thursday, March 19, 2015

7th Science - 3/23/15


https://docs.google.com/document/d/1-XcREQOGxbiKQg8yzPDwHGqRGRjkejNQpPOFA-auBDs/pub

Homework:

3/25 - Copy vocabulary words in NB

1. state of matter - One of the four principal conditions in which matter exists—solid, liquid, gas, and plasma.the temperature at which a liquid freezes: The freezing point of ... noun, Physical Chemistry ... The freezing point of water is 32°F, 0°C.

2. matter - physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy

3. kinetic theory of matter - states that all matter is made of small particles that are in random motion and that have space between them. This means that no matter what phase matter is in, it is made of separate, moving particles.

4. melting point - The temperature at which a given material changes from a solid to a liquid, or melts; the same temperature as freezing point

5. heat of fusion - also known as the latent heat of fusion, is a category of latent heat describing the energy for the phase change between a liquid and a solid to occur without a change in temperature

6. freezing point - the temperature at which a liquid freezes: . The freezing point of water is 32°F, 0°C

7. boiling point - The temperature at which a given material changes from a liquid to a gas. The boiling point is the same temperature as the condensation point. Water boils at 212 degrees Fahrenheit or 100 degrees Celsius

8. heat of vaporization - Substances exist in three different phases: solid, liquid and gas. Heating and cooling a substance can transform it from one phase to another.Vaporization is the phase change that occurs when a liquid is transformed to a gas.

9. evaporation - the process of a substance in a liquid state changing to a gaseous state due to an increase in temperature and/or pressure.Evaporation is a fundamental part of the water cycle and is constantly occurring throughout nature.

10. condensation -the conversion of a vapor or gas to a liquid.