Science 8 Unit 1 Part 1 Review

Where can most of the world’s freshwater be found?

• Frozen as ice

• In oceans

• In streams and rivers

• Under the ground

How much of the water on earth is fresh?

• 1%

• 2%

• 3%

• 97%

What is the term for water that is contained in the lithosphere?

• Groundwater

• Ocean

• Pond

• River

The amount of salt within a sample of salt water is known as its __________.

• Freezing point

• Density

• Salinity

• None of the above

Why does ocean water sink beneath freshwater when the two meet?

• Freshwater contains no dissolved solids.

• Freshwater tends to be warmer than ocean water.

• Ocean water is more dense than freshwater.

• Ocean water moves slower than freshwater.

What supplies the energy for the water cycle?

• Moon

• Tides

• Sun

• Climate

Mark has three beakers: Ocean water, Freshwater, and a mixture of ocean water and freshwater. Mark wants to figure out which beaker is ocean water. Mark colors the beakers and pours them slowly in another beaker. These are his results. Which of the following is true?

• The blue solution is freshwater

• The blue solution is ocean water

• The red solution is ocean water

• The clear solution is freshwater

Mark has three beakers: Ocean water, Freshwater, and a mixture of ocean water and freshwater. Mark wants to figure out which beaker is ocean water. Mark colors the beakers and pours them slowly in another beaker. These are his results. Which of the following is true?

• The blue solution is freshwater

• The red solution is ocean water

• The red solution is freshwater

• The clear solution is freshwater

Which term describes all the water on the planet?

• Atmosphere

• Biosphere

• Hydrosphere

• Lithosphere

Which term describes the solid rocky ground of the planet?

• Atmosphere

• Biosphere

• Hydrosphere

• Lithosphere