1.2

Question 0

What are the 3 states of matter?

Answer 0

Liquid, solid and gas

Question 1

What is matter?

Answer 1

Anything that had mass or volume.

Question 2

What’s is mass?

Answer 2

Mass is the amount of matter in a substance.

Question 3

What is volume?

Answer 3

The amount of space that an substance takes up or occupies.

Question 4

What is chemical change?

Answer 4

It is a change in matter that occurs when substances combine to form a new substance. They change when there is a change in temperature.

Question 5

What is physical change?

Answer 5

The change in appearance is a substance.

Question 6

What is the difference between physical and chemical change?

Answer 6

chemical change involves reactions to form of a new substance. Physical change is the change in appearance but no new substance form.

Question 7

What is a solid?

Answer 7

Has defined mass and volume.

Question 8

What is a liquid?

Answer 8

Has a defined volume but not a shape.

Question 9

What is a gas?

Answer 9

It does not have a defined volume or shape

Question 10

What is a “model” in science?

Answer 10

It is a way to think about and interpret naturals events or objects.

Question 11

What is a theory?

Answer 11

A theory is a scientific explanation based on a results of an experimentation.

Question 12

What is the particle of matter model?

Answer 12

1. All matter is made up of very particles.
2. There are spaces between the particles but the amount of space between particles is different for different sates of matter.
3. The particles of matter are always moving
4. Particles are attracted to each other and the strength of the attraction depends on the type of particle.

Question 13

Solid to a liquid?

Answer 13

Melting

Question 14

Liquid to solid?

Answer 14

Freezing.

Question 15

Solid to gas

Answer 15

Sublimation.

Question 16

Liquid to gas?

Answer 16

Evaporation.

Question 17

Gas to liquid.

Answer 17

Condensation.

Question 18

Gas to solid?

Answer 18

Deposition.

Question 19

A solid has a defined __ and __

Answer 19

Shape and volume.

Question 20

A liquid has a defined __ and ______

Answer 20

Volume and not a defined shape.

Question 21

A gas has a defined _____

Answer 21

Nothing

Question 22

What is an atom?

Answer 22

The smallest particle of an element that retains the properties of that element.

Question 23

What is boiling point?

Answer 23

The point where a liquid turns into a gas.

Question 24

What is conductivity?

Answer 24

The ability to conduct electricity or heat.

Question 25

What is density?

Answer 25

Density is the ratio of mass to volume.

Question 26

What is an electron?

Answer 26

An negatively charged subtonic particle found in shells of an atom.

Question 27

What is an element?

Answer 27

A pure substance that cannot be broken down or be made into smaller substances

Question 28

What is mass?

Answer 28

The amount of matter that makes up an substance or an object.

Question 29

What is the melting point?

Answer 29

The melting point is when a solid changes into a liquid.

Question 30

What is a neutron?

Answer 30

A neutron is a subtonic particle with no charge.

Question 31

What is the nucleus?

Answer 31

The nucleus makes up 99.9% of the mass of a atom and .1% of its volume. It is made up of protons and neutrons ad always has a positive charge.

Question 32

What is a proton?

Answer 32

A proton is a positively charged subtoc particle that is found in the nucleus.

Question 33

What is state?

Answer 33

State is a property of a substance describing it as a solid, liquid, or gas.

Question 34

What is a subtonic particle?

Answer 34

There are 3 types of a subtonic particle: a neutron, proton and electron. They all make up the atom.

Question 35

What is volume?

Answer 35

The punt of space taken up by a substance or object usually measured by litres.