gr7

gr7

Monday 22 October 2012

oct 22 science & math


Science 1.1 Review Handout

1.  Solids, liquids and gases are all made up of particles that can be seen only with a microscope.

2.  These particles have empty spaces between them.

3.  These particles are constantly moving to some degree.

4.  When heated, these particles move faster and spread farther apart from each other; when cooled, these particles move slower and remain closer together.

5.  These particles are attracted to each other; they generally remain close together than fly apart.

In these solids, the particles are very close to one another with little movement and they are very attracted to each other.

The 3 states of matter are solid, liquid and gas.

Rock: solid

Grape Juice: liquid

Air: gas

When heat is applied to a solid the particles move faster and spread farther apart causing a change to liquid form.

All solids have a definite volume because its particles are packed tightly together and they are very attracted to each other.

Liquids have a definite volume but not a definite shape.

Gas does not have a definite volume nor a definite shape.

 Science 1.2 Review Handout

1a/ particles representative of a solid; little movement; close attraction.

1b/ particles representative of a liquid; more movement; spreading father apart; heat is being applied

1c/ particles representative of a gas; a lot of movement, a lot of spreading and expanding to fill a space.

Complete 2 & 3.
 
3.2 corrections below.  3.3 workbook & textbook #6,7 homework.