3C - Mixtures and Separation Knowledge Test

Candidate Name:
1) What is a 'pure substance'?
2) What is a trace substance?
3) How can we identify a pure substance from an impure?
4) How can we separate salt from sand?
5) What is filtration?
6) What is a residue?
7) What is a filtrate?
8) What allows us to separate substances through evaporation?
9) What is distillation?
10) How does distillation work?
11) What is chromatography?
12) Why would we use chromatography to identify a type of sweet?
13) What does soluble mean?
14) What does insoluble mean?
15) What is a solution?
16) What is the solid that dissolves in a liquid called?
17) What is the liquid a solid dissolves into called?
18) What happens to the solute particles when they dissolve?
19) How do the particles behave once they have dissolved?
20) What does it mean when a solution is saturated?
21) In terms of particles, why does a solution become saturated?
22) Why does increasing the temperature increase the amount of solute that can dissolve?
23) What is solubility?
24) What is concentration?
25) What is diffusion?
26) What happens to the particles in a fluid?
27) Why do particles move from an area where there are more to where ther
28) How do the Big Ideas link to this topic?

a) Forces:

b) Particles:

c) Energy:

d) Cells: