General Science

What percent of the Earth’s surface is covered by Oceans?

• 75%
• 86%
• 70%
• 100%

How much of the ocean is pure water?

• 79%
• 100%
• 96%
• 4%

We have ________ main oceans?

• 7
• 4
• 5
• 6

The four main oceans are: Pacific Ocean, Arctic Ocean, Indian Ocean, and the __________ Ocean.

• Atlantic
• Southern
• Mediterranean 
• European

A measure of dissolved solids in sea water is

• desalination
• salinity
• carbonation
• pollution

Which of the following is NOT where salts in the ocean come from

• Volcanos
• Wave Action
• Erosion
• Earthquakes

What 2 factor affect density of the ocean?

• Salinity and Marine Animals
• Temperature and Wave height
• Salinity and Temperature
• None of these

Cold water is _______ dense than warm water

• More
• Less
• equally

Which gas dissolves most easily in ocean water?

• H2O
• CO2
• NaCl

What percent of the Earth’s surface is covered by Oceans?

• 75%
• 86%
• 70%
• 100%