Throughout this lesson we will learn what all of these words mean, but if you are still unsure of them by the end of the lesson then click on the useful link below to review them.
Rain is an essential element for life but how is it caused? Watch the YouTube clip below and answer the following questions about how rain forms.
Rain is caused by moist air rising and cooling. The three types of rainfall produced in this way are relief, convectional and frontal. Clouds are made up of small drops of moisture called cloud droplets. Clouds form when moist air rises, cools and changes into cloud droplets. This is called condensation.
Image Two - How it rains?
2. Relief rainfall occurs when moist air is forced to rise over mountains. As the air rises it will cool and then the rain making process will occur. Copy the diagram
below and add the phrases in the box to annotate what is happening.
3. Copy out the diagram below and annotate how convectional rainfall occurs using the information box.
4. Read the article link below about frontal rainfall. Describe how frontal rain occurs in no more than 5 sentences.