domingo, 24 de agosto de 2008

Anwers !!! =P

Hey !!! Sryy I'm late again, but here are finally the answers for the quiz =)


1.
density

2. heavier

3. particle size

4. filter, solid

5. boiling points

6. condensed

7. evaporation

8. Temperature: If the substance is hotter, then evaporation will be faster.

Concentration: If the air already has a high concentration of the substance evaporating, then the given substance will evaporate more slowly.

Flow rate of air: If fresh air is moving over the substance all the time, then the concentration of the substance in the air is less likely to go up with time, so it evaporates faster.

Surface area: A substance which has a larger surface area will
evaporate faster as there are more surface molecules which are able to escape.

9. solid, gas

10. When a substance is sublime one component turns into a gas, while the other stays.

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