HEAT

1. Sources of

1.1. Sun

1.2. Body heat

1.3. Friction via rubbing palms together

2. Effects of

2.1. Contraction when there is a loss of heat

2.2. Expansion when there is a gain in heat

3. Conductors

3.1. good

3.1.1. metals

3.2. bad

3.2.1. air

3.2.2. non-metals

4. is

4.1. a form of energy

4.1.1. that makes things hot.

4.2. measured using a thermometer and the units is Degree Celsius (°C)

5. travels

5.1. from a hotter object to a colder object

5.1.1. until both reach the same temperature.

6. Temperature is the degree of hotness of an object.

7. CHANGE OF STATE

7.1. water vapor lose heat

7.1.1. and CONDENSE

7.2. sweat gain heat

7.2.1. and EVAPORATE