Question

In this exercise, you will think about what evaporation is and how it happens.
Exercise 3.1 Evaporation

1. Complete these sentences. Choose the correct word when there
is a choice.

Evaporation occurs when a ............. turns into a .............. The particles in the..........gain/lose......... and move faster/slower and closer together/further apart until some of them escape from the surface and
become a ..........

2 Cement in a cement mixer is a liquid. The cement between bricks in a wall is a solid. What has happened to the liquid in the cement?


3 Why do puddles dry up quicker on hot days?​

Answer 1

Answer:

A substance that has a larger surface area will evaporate faster, as there are more surface molecules per unit of volume that are potentially able to escape. the higher the temperature of the substance the greater the kinetic energy of the molecules at its surface and therefore the faster the rate of their evaporation.

Explanation:

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Answer 2

Evaporation occurs when a liquid turns into vapour . The particles in the liquid gain energy and move faster and further until some of them escape from the surface and become a vapour

Explanation:

2. Liquid in the cement is absorbed by the cement .

3 . Puddles dry up quicker in hot days because evaporation on hot days is very quick .