1. How can you tell the difference between a stratus and a stratonimbus cloud?

• A stratus cloud is small and a stratonimbus cloud is very tall.
• A stratonimbus cloud has a lighter color.
• A stratonimbus cloud is darker than a stratus cloud, and causes rain.
• A stratus cloud only covers part of the sky, and a stratonimbus cloud covers the whole sky.

2. Stratonimbus storms usually cause rain all day long because ______.

• the clouds are very wide so they spend a long time over one area.
• there is no hail in stratonimbus storms.
• they turn into cumulus clouds.
• they turn into stratus clouds.

3. Tropical climate zones are very wet and humid because __________.

• the temperature is cold.
• they have many types of plants.
• the Earth travels in a circle around the sun.
• sunbeams shine directly on them, causing more water evaporation and rainfall.

5. What are the two main types of storm clouds?

• Cirrus and Cumulus

• Cumulus and Stratus

• Stratonimbus and Cumulonumbus

• Stratus and Stratonimbus

A. Animals that live here have blubber or thick fur: _____________

• temperate
• polar
• tropical
• mild
• desert

B. Trees lose their leaves in the autumn: _______________

• temperate
• polar
• tropical
• mild
• desert

C. Many animals hibernate in winter, come back out in springtime: ___________

• temperate
• polar
• tropical
• mild
• desert

D. It’s hot in December and in June: ______________

• temperate
• polar
• tropical
• mild
• desert

E. Animals that live here don’t pant to cool off, otherwise they would lose water: ________

• temperate
• polar
• tropical
• mild
• desert

F. It’s cold in December and in June: ______________

• temperate
• polar
• tropical
• mild
• desert