Lesson 2 water

• Nask
• Middelbare school
• havo
• Leerjaar 2

Program today

- Recap and exercise about yesterday

- New theory about section 2 and 4

- HW about section 2 and 4

What is NOT a phase of water?

1. Solid
2. Frost
3. Liquid
4. Gas

Mist is water in gas phase.

1. True
2. False

What kind of phase is frost in?

1. Solid
2. Gas
3. Liquid
4. Damp

How do we call the phase transition when and ice cube turns into a puddle of water?

1. Solidifying
2. Freezing
3. Evaporation
4. Melting

How do we call the phase transition when snow dissapears while it is not above 0 degrees Celsius?

1. Freezing
2. Depisition
3. Sublimation
4. Melting

1

2

3

4

5

6

Freezing

Deposition

Evaporation

Melting

Sublimation

Condensation

Molecules in a solid condition are very close together and do not move at all.

1. True
2. False

In which phase are the molecules most far apart from eachother?

1. Solid
2. Liquid
3. Gas

Why do we have phase changes?

Boiling- and  freezing(melting) point

HW