Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

science exam > states of matter > Flashcards

states of matter Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

What are the 4 different states of matter?

A

Solids, liquids, gases and plasma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is a solid?

A

They have a very definite shape that can’t be changed, take up a fixed amount of space and are not able to be compressed.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is a liquid?

A

The shape changes to that of the container in which its kept, they take up a fixed amount of space and can be poured.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are gases?

A

They spread out and will only stay in an enclosed area and they take up all of the available space. This is called diffusion. They can be compressed.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is diffusion?

A

Diffusion is when the particles of one substance spread throughout the particle of another. Only possible in liquids and gases.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

How do you measure matter?

A

The amount of space taken up by a substance is called volume. It is measured in cubic m/cm/mm for solids and for liquids it is mL.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is fluid?

A

A substance that flows.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is a melting point?

A

It is the temperature at which a substance changes from solid to liquid.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is a boiling point?

A

It is the temperature at which a substance quickly changes from liquid to gas.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is melting?

A

The change of state from a solid to liquid.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is evaporation?

A

It is when a liquid changes to gas, if it is under 100 degrees it forms water vapour, over 100n degrees it forms steam.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is freezing?

A

The change of state from liquid tom solid, or when heat is transferred away from it.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is condensing?

A

Happens when gas comes into contact with a cold surface.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is boiling?

A

When a liquid changes to gas really quickly, it forms bubbles and heat.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is sublimation?

A

When a solid changes to gas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is deposition?

A

When a gas changes to a solid

17
Q

What is precipitation?

A

It is falling water, solid or liquid

18
Q

What are 4 types of precipitation?

A

Rain, snow, sleet and hail

19
Q

What is rain?

A

Forms when water vapour condenses. The droplets are so small they are kept up by moving air. When they join together and are too heavy they fall as rain.

20
Q

What is hail?

A

When the raindrops freeze they form hailstones, they move to the colder part of the cloud (top) freeze and fall to the bottom and then that process is repeated, building up layers of ice then they fall as hailstones.

21
Q

What is snow?

A

Is crystals of ice frozen slowly in clouds, they never have the same shape and pattern.

22
Q

What is sleet?

A

Is between snow and rain, forms when the air is warm enough to melt ice.

23
Q

What are meteorologists?

A

Scientists who predict, forecast the weather.

24
Q

What is meteorology?

A

Is the study of the atmosphere

25
Q

What are the rules of the particle model?

A
  • all substances are made up of tiny particles
  • the particles are attracted to the surrounding particles
  • they are always moving
  • the hotter it is, the faster the particles move
26
Q

Particles in a solid

A 
They are very close together
Cannot be compressed
The attraction is very strong
Fixed shape and volume
Cannot move freely
Vibrate in a fixed position
27
Q

Particles in a liquid

A

Attraction is not as strong as solids
Allows particles to roll over each other but can’t escape
This allows them to take up the shape of their container
Cannot be compressed

28
Q

Particles in a gas

A 
Have more energy
In constant motion
Attraction is weak
Take up all available space
No fixed shape and volume
Can be compressed
29
Q

What happens when you heat liquids, solids and gases? And what is it called?

A

The particles gain energy, move faster, move apart and the attraction decreases. It is called expansion.

30
Q

What happens when you cool liquids, solids and gases? And what is it called?

A

The particles move slower, the distance gets smaller and the attraction increases. It is called contraction

31
Q

What happens when you put gas under pressure?

A

When they are compressed in a container as soon as you op[en the lid the come out very quickly.

32
Q

What is condensation?

A

When water vapour turns to tiny droplets and collect in a cloud.

33
Q

What is the only natural substance that can exist in the three different states of matter?

A

Water, ice and water vapour

science exam (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions