states of matter Flashcards
1
Q
what are the three states of matter?
A
solids, liquids, and gases
2
Q
what are the particles like in a solid?
A
- particles are very close together
- vibrate in a fixed position
- cannot be squashed
3
Q
What are the particles like in liquid?
A
- fairly close together
- fixed volume
- particles move past each other
4
Q
What are the particles like in a gas?
A
- particles are well spread out
- move in all different directions
- can be squashed
5
Q
When does diffusion occur?
A
diffusion occurs when chemicals mix together without moving them. This is because particles in a substance are always moving around.
6
Q
How is pressure caused?
A
Pressure is caused by particles hitting the walls of the container.
7
Q
How is air pressure caused?
A
Air pressure is the pressure caused by air particles
8
Q
where is diffusion occur fastest
A
in gasses and is slowest in liquids
