unit 3 - matter

Question 1

Atom:

Answer 1

smallest particle of an element that contains all the

properties of that element (neutral charge)

Question 2

Element:

Answer 2

a substance containing all the same atoms (Cu)

Question 3

Compound:

Answer 3

a pure substance made of two or more types of

atoms (chemically combined)

Question 4

Molecule:

Answer 4

a cluster 2 or more atoms held strongly together

by electrical forces (covalent) (CO2)

Question 5

Ion:

Answer 5

a charged atom (+ or -)

Question 6

Particle:

Answer 6

general term referring to small amounts of a

substance

Question 7

Matter

Answer 7

anything that has mass AND volume

Question 8

What is NOT Matter

Answer 8

Dark Stuff!
Theoretically, 95% of the universe is made of Dark
Matter and Dark Energy

Question 9

Properties Used to Describe

Matter

Answer 9

• Physical properties
• Chemical properties

Described using Quantitative
and Qualitative observations

Question 10

Physical Properties

Answer 10

-measurable using physical senses

-Properties that can be found without
creating a new substance.

ex.
Mass, Density, Melting/boiling point, Colour, Magnetism, Texture

Question 11

(PP) Extensive Properties

Answer 11

• depend on the amount
• Mass, volume
• Not used to identify substances

Question 12

(PP) Intensive Properties

Answer 12

depend on the nature of the substance, regardless of amount

Question 13

(PP) State: (extensive property)

Answer 13

Whether something is a solid, liquid or gas

Question 14

(PP) Melting point: (extensive property)

Answer 14

The temperature at which a substance changes from solid to liquid

Question 15

(PP) Boiling point: (extensive property)

Answer 15

Temperature at which a substance changes from liquid to gas

Question 16

(PP) states of matter (extensive property)

Answer 16

solid, liquid, gas (in order when adding heat)

gas, liquid, solid (in order when taking away heat)

Question 17

(PP) kinetic molecular theory (extensive property)

Answer 17

explains that all matter is made up of tiny moving particles.

Question 18

(PP) Kinetic energy (extensive property)

Answer 18

is energy due to motion.

Question 19

(PP) Solid: (extensive property)

Answer 19

• Fixed volume

- Fixed shape

Question 20

(PP) Liquid: (extensive property)

Answer 20

• Fixed volume

- No-fixed shape

Question 21

(PP) Gas: (extensive property)

Answer 21

• no fixed volume
• No fixed shape
• Expands to fill container

Question 22

(PP) Density: (intensive property)

Answer 22

The amount of mass in a certain volume

Question 23

(PP) Conductivity: (intensive property)

Answer 23

How easily something allows electricity or

heat to move through it

Question 24

(PP) Vapour Pressure: (intensive property)

Answer 24

The amount of pressure a substance exerts when at

equilibrium between gas and liquid/solid

Question 25

(PP) Malleability:

Answer 25

ability to be hammered into a sheet

Question 26

(PP) Ductility:

Answer 26

ability to be pulled into a wire

Question 27

(PP) Viscosity:

Answer 27

a fluid’s resistance to flow

Question 28

(PP) Lustre:

Answer 28

shininess

Question 29

(PP) Colour:

Answer 29

Reflection/ refraction of specific | wavelengths

Question 30

(PP) Hardness

Answer 30

(Moh’s scale): due to crystal binding

Question 31

(PP)Diffusion:

Answer 31

intermingling of fluids (both gas and | liquid)