Properties &Changes of matter

Question 1

Physical Property

Answer 1

A property that can be easily observed without changing the identity of the substance.

Question 2

Viscosity

Answer 2

Thickness of a liquid; the speed at witch it flows.

Question 3

Conductivity

Answer 3

a materials ability to allow heat or electricity to flow trough it.

Question 4

Does metal have high or low conductivity?

Answer 4

Metal has a high Conductivity

Question 5

Does wood have high or low conductivity?

Answer 5

Low Conductivity

Question 6

Malleability

Answer 6

A substances ability to be hammered into a thin sheet

Question 7

Hardness

Answer 7

How hard a substance is

Question 8

magnetism

Answer 8

an objects ability to attract or repel another object

Question 9

Soulubility

Answer 9

The ability of a substance to dissolve

Question 10

What is this an example of:
Sugar dissolved in water

Answer 10

Solubility

Question 11

Melting Point

Answer 11

The tempature at witch a solid becomes a liquid

Question 12

Boiling point

Answer 12

Temperature at witch a liquid becomes a gas

Question 13

Freezing point

Answer 13

Temperature at witch a liquid becomes a solid.

Question 14

Physical change

Answer 14

A change in the appearance, without changing the identity of a substance.

Question 15

A physical change can always go. Back to the________ ______________

Answer 15

Original Substance

Question 16

It is a physical change if it changes ……

Answer 16

shape, size, it dissolves, or the substance changes phases.

Question 17

Chemical Properties

Answer 17

Any ability to produce a change in the identity of matter.

Question 18

Flammability

Answer 18

A materialsability to burn

Question 19

Reactivity

Answer 19

How readily a substance combines chemically with other substances

Question 20

Corrosiveness

Answer 20

The process of eating away, such as metal by acid

Question 21

What are the three main chemical properties

Answer 21

1- flammability
2- Reactiveness
3- Corrosiveness

Question 22

Chemical changes

Answer 22

Occur when a substance reacts and forms one or more new substances

Question 23

you know their is a chemical change when their is change in…

Answer 23

Color, odor, production of gas (bubbles), formation of a solid, and if it absorbs or releases any energy ( heat, cold, or light) Ex. Glow stick

Question 24

What are the 7 main types of physical properties?

Answer 24

1- viscosity
2- conductivity
3- malleability
4- hardness
5- magnetism
6-solubility
7- density

Question 25

An apple being cut
Is this an example of a physical or chemical change?

Answer 25

Physical change

Question 26

If a substance changes phases is it a physical or chemical change

Answer 26

Physical change

Question 27

Desnisty

Answer 27

measure of how close a substances particles are together