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1 Cooling air is to condensation as boiling water is to.

1 Evaporation Home

2 If you kept heating a saucepan of boiling water, the water’s temperature would –

2 remain at 100 °C.

3 You breathe on a mirror and droplets of water form. This is an example of –

3 condensation.

4 A gas condenses into a liquid when –

4 heat energy is removed.

5 Which of the following is a poor conductor of heat? IronCopperPaperSteel

5 paper

6 A student blows up a balloon. Is the air-filled balloon heavier or lighter than the uninflated balloon?

6 heavier

7 Which of the following would be attracted to a magnet? Iron nailCopper pennyGlass lensPlastic lid

7 Iron Nail

8 What patterns of change take place as more and more heat is added to a solid?

8 A solid turns into a liquid and then a gas.

9 What is the approximate boiling point of pure water?

9 100 °C