Explain the difference between evaporation and condensation using the provided examples of saucers.

Here are the answers to your questions:

4. a) No, the amount of water in the saucers will not be the same. The open saucer will have less water than the covered saucer.

b) The open saucer will have less water due to evaporation, and there will be no water droplets on its surface. The covered saucer will have roughly the same amount of water, and there will be water droplets on the underside of the cling film due to condensation.

5. Use the words to complete the sentences about change of state in water.

a) The water in the open saucer gained heat and evaporated to form water vapour which escaped from the saucer.

b) In the covered saucer the water vapour cooled and condensed to form water droplets on the cling film.