Card Set Information
Science Ch 3
Matter that has a definate shape and definite volume
matter that has a definite volume but does not have a definite shape
Matter that does not have a definite shape or definite volume
Particles stay in one place but move quickly back and forth
Particles can slide past one another
Particles move freely
Characteristic you can observe without changing the identity of the material
Physical properties of matter
The amount of matter in an object
Gravitational pull of an object
Multiply the length, width, and height
6 Physical Properties of Matter
6. Boiling point
Ability of one material to dissolve into another
Temperature in which a liquid changes to a gas
Mass per unit of volume
The particles in matter
Characteristic of a material that you can observe as in changes to a different substance
Describe how iron turns to rust
When iron reacts with water and oxygen in the air rust is formed.
Changes in state involve changes in the amount of _________that the particles in a substance have.
What is a sign that a chemical change is involved?
conserved during physical and chemical changes?
Explain how you can tell a solid by looking at the molecules.
The particles in a solid stay in one place, but move quickly back and forth in all directions.
Explain how to change molecule movement
You can boil a molecule and it will change to a gas at it's boiling point. When a molecule changes state, the amount of energy the particles have changes as well.
ESSAY: What is the difference between mass and weight?
Mass is the amount of matter in an object. Weight is the gravitational pull of an object.
: How is energy involved in a chemical reaction?
The release of energy is a sign that a chemical change is involved.
ESSAY: Explain how physical changes and chemical changes affect mass.
Mass is always conserved during physical and chemical changes.