Matter and Material Flashcards
1
Q
What are particles?
A
smallest part of a substance
2
Q
What is matter made up of?
A
particles that are moving
3
Q
Describe how particles are arranged in SOLIDS
A
- close
- small spaces
- regular pattern
- slow vibration
- vibrate in fixed position
- therefore = fixed shape e.g. brick
4
Q
Describe how particles are arranged in LIQUIDS
A
- further apart than solids
- small spaces
- not fixed pattern
- move faster more freely
- therefore = take shape of container
5
Q
Describe how particles are arranged in GASES
A
- far apart
- big spaces
- move freely, all directions
- fast
- therefore = no shape of their own
- fill whole container
6
Q
What are mixtures made up of?
A
substances not chemically joined, easily separated
7
Q
What methods can be used to separate mixtures?
A
- decanting
- filtering
- sieving
- hand sorting
- settling
8
Q
What is a solution?
A
a mixture can’t identify substances
9
Q
soluble
A
can dissolve
10
Q
solvent
A
liquid in which a substance dissolves
11
Q
solute
A
substance that dissolves in the solvent
12
Q
insoluble
A
cannot dissolve
13
Q
solubility
A
how well a substances dissolves
14
Q
saturated
A
when a solution can hold no more solute
15
Q
crystallisation
A
dissolved substance that is changing into solid crystals again
