Monday, March 17, 2014

3/17/14- Happy Saint Patrick's Day!!!
All classes:  make sure you get your Revised Permission Slips signed for our Soundwaters field trip to the Cove on Thursday. 

Periods 2 and 5: Write a Reflection on what you learned in class today about science.Make sure you write 5 good sentences.

Periods 6 and 1, copy the following vocabulary into your science notebooks: 
The vocab words go in your notes, the words + definitions go in your vocab section!
gas - substance that has no definite shape or volume; gas particles spread far apart.
liquid - substance with definite volume but no definite shape; particles in a liquid spread far apart enough to flow or pour and take.
particles - characteristic smaller pieces or parts, such as atoms or molecules, that all substances are made of. Ex: Water is a compound made of identical water molecules; element gold is made of identical gold atoms.
phase - a homogeneous state of matter - gas, liquid, or solid. During phase change, the particles do not change, the only change is arrangement & distance between particles.
physical change - difference in appearance that does not change the make up of the particles. Ex: break or tear material into smaller pieces; during a phase change from solid to liquid (melting), liquid to gas (boiling, evaporating), solid to gas (sublimation), gas to liquid (condensing), or liquid to solid (freezing).
physical properties - A characteristic of a substance or material, such as color, density, flexibility, hardness. These properties help identify pure substances and don't change if the sample is large or very small. They are intrinsic properties.
quantitative data - measurements, such as volume or mass
qualitative - characteristics people can perceive without making measurements.

No comments:

Post a Comment