Physical Science Chapter 2

Front 1

Fill in the blanks and give examples for the last row

Back 1

possible example for; elements: gold
compounds: water
homo: air
Hetero: granite

Front 2

mass (is/is not) the same as weight

Back 2

is not

Front 3

What are the four main ideas of the Particle Model?

Back 3

1. All matter is made of particles
2. Particles are always moving
3. There is space between the particles
4. The particles attract each other

Front 4

Note whether the following are positive, negative, or neutral. Answers may be used once, more than once, or not at all.

protons:_______
Neutrons:________
Electrons:_______

Back 4

protons are positive
neutrons are neutral
electrons are negative

Front 5

Where are electrons found?

Back 5

circling the neucleus

Front 6

What is the difference between a physical and chemical change?

Back 6

A physical change does not alter the composition of the material. A chemical change occurs when atoms of different elements are rearranged and ombine in different ways.
Therefore, while objects that have been physicaly changed remain basically the same, objects that have been chemically changed come out different.

Front 7

What are the distinguishing characteristics of solids?

Back 7

their definite shape
definite volume
and low compressability

Front 8

What are the distinguishing characteristics of liquids?

Back 8

definite volume
no definite shape
low compressibility- while they are close together, they are mobile.

Front 9

What are the characteristics of a gas?

Back 9

indefinite volume
indefinite shape
high compressibility

The particles are far apart and move quickly

Front 10

What is the 4th state of matter?

Back 10

plasma