WALA: EVAPORATION 1

WALA: EVAPORATION 1

L.O: to know that evaporation occurs when a liquid turns into a gas.

INTRODUCTION

• If you hang wet clothes up will they enventually get dry?

• Where do you think the water goes?

• If you forget your towel when you go swimming,you can dry off by just standing around. How does that happen?

GROUP WORK

GROUP 1 - Why does a puddle dry up when it rains? What happens to water

GROUP 2- Come up with other examples of water drying up.

GROUP 3 - Find out the meaning of Evaporation,Energy and Watervapour

When water or other liquids become hot enough, They change into a gas.

Water changes into a gas called watervapour.

When liquids change into gases we say they evaporate.

When particles of water gain heat energy they move faster and further apart and break free from the liquid's surface.

Heat makes evaporation take place faster.

Water vapour- the gas formed when liquid water changes into a gas.

Enegry- quantity needed to make things happen.

Evaporate- When a liquid turns into a gas.

Plenary

End the session by reviewing important points.