Matter

Question 1

How are solid particles arranged?

Answer 1

They are tightly packed into the space and cannot move.

Question 2

How are liquid particles arranged?

Answer 2

They are arranged quite loosely but are still touching. They can move around freely.

Question 3

How are gas particles arranged?

Answer 3

Gas particles don’t touch and can move anywhere they want. They are completely free!

Question 4

What are atoms?

Answer 4

Atoms are very, tiny particles.

Question 5

What is expanding in science?

Answer 5

Expanding is when the particles can move about and that extend the size of the object.

Question 6

What is the melting point?

Answer 6

Melting point is the temperature where in which a solid changes to a liquid.

Question 7

What is the boiling point?

Answer 7

Boiling point is the temperature in which a liquid turns into a gas.

Question 8

What is the definition of diffusion?

Answer 8

Diffusion is the movement of particles from an area of high concentration to an area of low concentration.

Question 9

What is a mixture?

Answer 9

A mixture is made up of substances that are not chemically joined.

Question 10

What is boiling?

Answer 10

Evaporation is the change of state from liquid to gas which forms when bubbles form throughout the liquid.

Question 11

What are atoms made up of?

Answer 11

Atoms are made up of protons, neutrons and electrons.

Question 12

What is a solute?

Answer 12

A solute is the substance that dissolves in the liquid.

Question 13

What is shown on the periodic table on the left of the number going from up to down?

Answer 13

The mass number is on top and the atomic/ proton number is on the bottom.

Question 14

What is the atomic number the same as?

Answer 14

The number of protons.

Question 15

What is the number of electrons the same as?

Answer 15

The number of protons.

Question 16

What is an element?

Answer 16

An element is a substance that is made of only one type of atom. Elements are the simplest substance.

Question 17

What is the independent variable?

Answer 17

What you change.

Question 18

What is the dependant variable?

Answer 18

What you measure.

Question 19

What is the control variable?

Answer 19

What you keep the same.

Question 20

What is secondary data?

Answer 20

Graphs or data that somebody else has collected is secondary data.

Question 21

What are the key groups on the periodic table?

Answer 21

The key groups are: group 1,0 and 7

Question 22

What are periods?

Answer 22

The rows on the periodic table.

Question 23

What are the columns known as on the periodic table?

Answer 23

Groups.

Question 24

What is a solvent?

Answer 24

The liquid that he solid dissolves into is called the solvent.

Question 25

What are most elements?

Answer 25

Most elements are metals.

Question 26

What are groups?

Answer 26

Groups go vertically and the mass increases as you go down.

Question 27

What is a polymer?

Answer 27

A polymer is a long chain of monomers.

Question 28

What are some key properties of metals?

Answer 28

They have high melting points and boiling points. It is very strong.

Question 29

What did Newlands produce?

Answer 29

He arranged them in mass and realised that the properties of every eighth element was similar. So he created the law of octaves.

Question 30

What did John Dalton produce?

Answer 30

He arranged the elements in order if their atomic weights.

Question 31

What did the scientist Dobereiner think of?

Answer 31

He grouped the elements into three, creating triads.

Question 32

What did the scientist Mendeleev discover?

Answer 32

He found out that the properties were similar.

Question 33

What is polymerisation?

Answer 33

The process of making a polymer.

Question 34

What are some properties of group 1 elements?

Answer 34

They are all solids. They are not insulators. They are soft.

Question 35

What is the line of best fit?

Answer 35

It is a curved to show what the rough results were.