Properties of Salt Water/ICE

While most inland bodies of water contain ​ (a)   , most of the water on Earth is ​ (b)   , contained in oceans. Salt water is "salty" from ​ (c)   minerals, most of which are salts, such as sodium chloride and magnesium chloride.

• salt water
• freshwater
• dissolved

Tags

NGSS.MS-ESS2-4

While most inland bodies of water contain ​ (a)   , most of the water on Earth is ​ (b)   , contained in oceans. Salt water is "salty" from ​ (c)   minerals, most of which are salts, such as sodium chloride and magnesium chloride. Other dissolved minerals in salt water include magnesium, sulfur, calcium, potassium, bromine, and carbon.

• salt water
• freshwater
• dissolved

The s____ is related to the amount of salts present in a sample of salt water.

• salinity
• salt content
• saline concentration
• salinity level

Earth's oceans have an average salinity of 3.5%, or 35 grams of salt per kilogram of salt water.

• True
• False

Ocean water also contains dissolved ____, which enables some marine organisms to carry out photosynthesis.

• oxygen
• nitrogen
• carbon dioxide
• sodium

Tags

NGSS.MS-LS1-6

Which of the following is MOST true about saltwater?

• It is less dense than freshwater.

• It is more dense than freshwater.

• It has the same density as freshwater.

• It has no density.

Natural formations made of ice exist on earth today because we are still in the midst of an ____.

• heat wave
• drought period
• tropical season
• ice age

Ice forms at ____ and stays frozen, even through the polar summers.

• deserts
• the poles
• mountain tops
• the equator

Ice caps, or sheets of ice, cover the poles. Ice caps can be hundreds of meters thick and extend for thousands of square kilometers.

• Ice caps are large sheets of ice covering the poles.
• Ice caps are small patches of ice found in mountains.
• Ice caps are primarily located in tropical regions.
• Ice caps are thin layers of frost on the ground.

Glaciers are large blocks or masses of ice that flow at a very slow rate. As they flow, they carve valleys into the earth, which later may fill with water. ______ were formed this way.

• North America's Great Lakes

• North America's Great Deserts

• North America's Great Mountains

Tags

NGSS.MS-ESS2-2