The document explains the three main types of rain: 1) Convectional rainfall occurs when warm air over heated ground rises, cools, and condenses into rain droplets. 2) Relief rainfall happens when air is blown over hills and forces to rise and cool, condensing water vapor into rain clouds. 3) Frontal rainfall results from the meeting of warm and cold air masses, where the warm air is forced up and cools to form rain clouds.

1. Why does it rain?

3. Hot air rises, but as it goes up it cools. As air cools the water vapour (gas) changes into water droplets (liquid) and clouds are formed.

5. Evaporation Water on the ground rising up into the air as an invisible gas WATER VAPOUR Condensation Air cools. The water vapour changes to WATER DROPLETS making CLOUDS Precipitation Water droplets stick together and fall out of the sky CLOUDS WATER LAND

7. Convectional Rainfall When it is a hot day the sun heats up the ground making the water on the ground e_______ and rise up into the air as w____ v_____. When it gets colder the water vapour c_______ and falls as r___.

8. Convectional Rainfall When it is hot day the sun heats up the ground making the water on the ground evaporate and rise up into the air as water vapour. When it gets colder the water vapour condenses and falls as rain.

10. Relief Rainfall When air is blown against a line of hills it is forced to r___. As it rises it c____. As it cools the w____ v_____ c________ forming water d______ and it r_____.

11. Relief Rainfall When air is blown against a line of hills it is forced to rise. As it rises it cools. As it cools the water vapour condenses forming water droplets and it rains.

13. Frontal Rainfall The air temperature is not the same all over the world. There are warm air masses and cold air masses. When a warm air mass meets a cold air mass the ____ air mass if forced to rise. As the warm air goes up it c____ and the w____ v_____ c_______, c_____ are formed and it r____.

14. Frontal Rainfall The air temperature is not the same all over the world. There are warm air masses and cold air masses. When a warm air mass meets a cold air mass the warm air mass is forced to rise. As the warm air goes up it cools and the water vapour condenses, clouds are formed and it rains.