SCIENCE TERM 2 REVISION 1 (Salamat School)

A artificial lake built for storage of water is _____

• Aquifer

• Well

• Reservoir

• River

Which of the following bodies of water can contain saltwater? Select ALL that apply

• Lakes

• Oceans

• Seas

An underground water-bearing layer of permeable rock, sand, or gravel is called:

• Pond

• Estuary

• Aquifer

• Hydrosphere

The states of water are __

• Liquid and vapor

• Vapor and frozen

• Liquid and frozen only

• Liquid, vapor and frozen

Ground water and fresh water are the only usable sources of water on Earth.

Together they represent_______

• 31%

• 30%

• 15%

• 1%

Which of the following indicates a source of water that humans can use to drink?

• Oceans

• Rivers

• Water vapor

• Seas

In which state is most of the water on Earth found?

• Solid sate

• Gas state

• Liquid state

• Vapor state

About what percentage of Earth's water is salt water?

• 30%

• 69%

• 3%

• 97%

This symbol appears on different objects.

What does this symbol represent?

• Use, cycle and turn

• Reduce, reuse and recycle

• Again, up and down

• Left, right and front

The effect of acid rain was studied in four different water ecosystems .

Which ecosystem is highly affected by acid rain?

• A

• B

• C

• D