Marine Science Test 1

As oceans become deeper, the water pressure ___________________.

• increases
• decreases
• stays the same

What is salinity?

• level of iron in water

• amount of salt in water

• water pressure

• water temperature

How does salinity change with ocean depth?

• deeper water has lower salinity

• surface water has the highest salinity

• deep water has the highest salinity

The salt that is in your salt shaker is the same salt that is in our oceans?

• true
• false

Tags

NGSS.MS-PS1-1

NGSS.MS-ESS3-1

Most of the Earth's water is in

• salty oceans
• freshwater lakes
• freshwater ponds
• glaciers

Tags

NGSS.MS-ESS2-4

Water is polar because...

• The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms.
• The molecule has two poles, at which the it is colder than other regions of the molecule.
• The unequal sharing of electrons gives the water molecule a slight negative charge near its hydrogen atoms and a slight positive charge near its oxygen atom.
• The water molecule is neutral.

Tags

NGSS.MS-ESS2-4

The chemical compound of water is

• HO
• H₂O
• H₃O
• HO₂

Tags

NGSS.MS-PS1-1

What is water made of?

• Water
• Liquid
• Hydrogen and oxygen
• Blue 

Tags

NGSS.MS-PS1-1

Attractions between water molecules are called

• Covalent bonds
• Ionic bonds
• Polar bonds
• Hydrogen bonds

Surface tension is the property of water in which...

• water molecules at the surface tend to stick together.

• water spills easily.

• water tends to be see-through.