UNIT 3: AIR AND WATER

The three main layers of the atmosphere are ...

• Ionosphere

• Hydrosphere

• Stratosphere

• Hemisphere

• Troposphere

The hydrosphere is made of ...

• Sweet water

• Fresh water

• Salt water

• Mineral water

When a smaller river flows into another river it is called ...

• Little river

• Afluent

• Tributary

Which ones are made of fresh water?

• Groundwater

• Oceans

• Ice caps

• Lakes

• Seas

Choose the parts of a river

• Spring

• Feet

• Mouth

• Source

• Course

The stages of the water cycle are:

• 1. Evaporation, 2. Collection, 3. Precipitation, 4. Condensation

• 1. Collection, 2. Precipitation, 3. Condensation, 4. Evaporation

• 1. Evaporation, 2. Condensation, 3. Precipitation, 4. Collection

• 1. Precipitation, 2. Collection, 3. Evaporation, 4. Condensation

Water exists in three stages:

• Rigid

• Liquid

• Gas

• Hard

• Solid

Choose the examples of gas water.

• Cloud

• River

• Snow

• Water vapour

How is most of the water on Earth?

• Sweet water

• Fresh water

• Salt water

• Water vapour

Where is the OZONE LAYER?

• Hydrosphere

• Troposphere

• Ionosphere

• Stratosphere