Changes in Matter

Question 1

Physical Properties

Answer 1

Any characteristics that can be observed with the 5 senses with changing the substance

Question 2

Chemical Properties

Answer 2

Any characteristic that describes how matter interacts with another substance

Question 3

Biological Property

Answer 3

The characteristic of having all 9 features of living things

Question 4

Physical change

Answer 4

Change to the physical properties of matter, substance is not changed into a new substance

Question 5

Chemical Change

Answer 5

Change to the chemical properties of matter, substance is changed into a new substance with new properties, can not change back.

Question 6

Law of Conservation of Matter/Mass

Answer 6

Matter cannot be created nor destroyed,
The number of atoms/mass of the reactants equals the number of atoms/mass of the products.

Question 7

Phase/State of matter

Answer 7

solid, liquid, and gas
Changed by changing temperature or pressure

Question 8

Solid

Answer 8

Definite shape & definite volume
Particles packed together and vibrate but have fixed positions
Lower energy

Question 9

Liquid

Answer 9

No definite shape but has definite volume
Particles spread apart
Medium energy

Question 10

Gas

Answer 10

No definite shape & no definite volume
Particles spread far apart
High energy

Question 11

Melting

Answer 11

matter changing from liquid to solid
⬇ energy, ⬇ particle movement
freezing point= temperature substance freezes at

Question 12

Vaporization/Evaporation

Answer 12

matter changing from liquid to gas
⬆ energy, ⬆ particle movement
Boiling point= temperature substance turns to gas at

Question 13

Condensation

Answer 13

matter changing from gas to liquid
⬇ energy, ⬇ particle movement

Question 14

Sublimation

Answer 14

matter changing from solid to gas
⬆ energy, ⬆ particle movement