Chapter 9-11

Question 1

Residue

Answer 1

Is the soil or dirt left on the paper

Question 2

Chromatography

Answer 2

Used to separate a mixture of dissolved substances E.G the different colours in a black marker

Question 3

Matter

Answer 3

Anything that takes up space and has mass

Question 4

Mass

Answer 4

A measure of the amount of matter in an object

Question 5

States of matter

Answer 5

Three states that matter can exist in solid liquid and gas

Question 6

Solid

Answer 6

atoms are close together, they vibrate to transfer energy. Cannot flow, fixed shape. e.g. wood, rock

Question 7

Liquid

Answer 7

Atoms are less close that solid but still close . Particles can move around. Liquids can flow and change shape e.g water, milk

Question 8

Gas

Answer 8

Particles are spread out. Gases can flow and change shape

Question 9

Particles

Answer 9

Suggestions that everything is made up of small parts

Question 10

Particles theory

Answer 10

Scientist believe that everything is made from small particles

Question 11

Viscosity

Answer 11

The flow rate of a liquid. Water is less viscous than maple syrup

Question 12

Diffusion

Answer 12

The spreading out of particles to fill the space they are in.

Question 13

Mixture

Answer 13

Consists of two or more substances mingled together but not chemically combined

Question 14

Filtration

Answer 14

The soil left in the filter paper after filtration

Question 15

Insoluble

Answer 15

Does not dissolve in a liquid

Question 16

Atom

Answer 16

A tiny particle

Question 17

Element

Answer 17

A substance made up of only one type of atom

Question 18

Chemical symbol

Answer 18

The letter or letters used on the periodic table to represent elements

Question 19

Subatomic particles

Answer 19

The small particles that made up an atom

Question 20

Protons

Answer 20

A positively charged particle located in the nucleus of the atom

Question 21

Neutrons

Answer 21

A neutrally charged particles located in the nucleus of the atom

Question 22

Electrons

Answer 22

A negatively charged particles located on the shells that orbit the nucleus of the atom

Question 23

Atomic number

Answer 23

The number of protons in the atom of that element

Question 24

Mass number

Answer 24

The total number of protons and neutrons in a atom

Question 25

Atomic structure

Answer 25

The idea proposed by Neil’s Bohr that electrons orbit the nucleus in shells

Question 26

Configuration

Answer 26

Describing the location of electrons in an atom

Question 27

Isotopes

Answer 27

Atoms with the same number of protons but different numbers of neutrons

Question 28

Periodic table

Answer 28

The modern periodic table groups elements to show patterns in their properties

Question 29

Groups

Answer 29

Vertical columns of elements

Question 30

Periods

Answer 30

Horizontal rows of elements across the periodic table

Question 31

Malleable

Answer 31

Can be hammered into various shapes without cracking

Question 32

Ductile

Answer 32

Metals can be drawn out to form a wire

Question 33

Conductor

Answer 33

Alloys energy to flow through them e.g copper

Question 34

Alloy

Answer 34

A mixture of metals e.g copper and tin makes bronze