Primary 3, English, Exercise 5 – tbc, time & marks allocation, review format

Clouds are  water vapours that (1) and clumped together. There are three types of clouds: cumulus clouds, cirrus clouds and stratus clouds.

Cumulus clouds are puffy. They have flat bottoms and are low in the sky. They usually (2)  fair weather. However, if they grow tall, they (3) thunderheads and bring rain.

Cirrus clouds are the highest clouds. They usually indicate fair weather, and they look white and feathery.

Finally,  stratus clouds  are  low clouds. They (4) rain or snow. Fog is a stratus  cloud  at  ground  level and (5) like a low grey blanket.