States Of Matter Flashcards Preview

Science > States Of Matter > Flashcards

Flashcards in States Of Matter Deck (29):
1

Condensing

The process of gas changing into liquid

2

Sublimation

The change of gas turning in to a solid without being a liquid

3

Evaporation

The change of liquid to gas

4

Freezing

The change of state from a liquid to a solid

5

Melting

Melting the change of state from solid to liquid

6

Boiling point

The temperature at which a substance boils at. The substance evaporates quickly.

7

Melting point

The temperature at which a substance melts at (solid into a liquid). A liquid can freeze at the same temperature.

8

Particle model

A description of the moving particles that make up all matter and how they behave. The model explains solids, liquids and gases

9

Fog

It is a visible mass consisting of cold water droplets or ice suspended in the air or the earths surface.

10

Expansion

Increase in size due to the movement of particles in a substance

11

Meteorologist

Scientist who use observation of the atmosphere to predict or explain the weather

12

The properties of a solid 3 examples

1. Take up a iced amount of space
2. Not able to be compressed
3. Define shape cannot be changed easily

13

The properties of a liquid 3 examples

1. Liquids take up a fixed amount of space
2. Can not be compressed
3. It's shape is kept to the shape of the container

14

Properties of gas 3 examples

1. It spreads unless kept in a container
2. It diffuses and take up as much space as it can
3. Can be compressed

15

Explain diffusion and give an example

Diffusion is the spreading out or movement of particles from a region of high concentration to a region of low concentration to create equilibrium
Example-a perfume/spray

16

Name a liquid that can be found in all three states at normal temperatures.

Water in the ocean, in the polar ice, and in the air as water vapour.

17

Example of solid to liquid and what it's called

Melting- ice cubes into a liquid

18

Example of gas to liquid what it's called

Condensation- having a cold drink on a hot day as it "sweats"

19

Example of liquid to solid what it's called

Freezing-water yo ice cubes

20

Example of solid to gas what it's called

Sublimation-dry ice

21

Name three substances that have a melting point greater than the comfortable room temperature

Aluminium-660
Iron-1535
Table salt-804

22

What are the units of measurements for volumes of liquid?

1ml= 1cm3
1l= 1000cm3
1000l= 1m3

23

When heat was applies to a metal ring why could the ball easily fir through. Particle model?

As the metal ring was heating the particles inside the solid was expanding. Allowing the particles to move faster create an increase in the distance between the particles and the attraction between the particles decreases causing the inner radius increased in size so the ball could fit through the ring easily

24

Explain how particles behave when heated is applied.

When heat is applied to particles:
- particles move faster
- distance between particles increase
- the attraction between the particles decreases

25

Explain how particles behave when cooled

When heat is removed the particles contract:
- particles move more slowly
- distance between particles gets smaller
- the attraction between the particles increase

26

Explain how clouds are formed

Clouds are formed by tiny droplets of water, kept up by air currents.

27

Inter particle space

The space between the particles within a solid liquid or gas

28

What is the core temperature of the human body?

36-37

29

Diffusion

The spreading of one substance through another due to the movement of their particles