Unit 2 Test Review - 25/26

What percentage of Earth's surface is covered with water?

• 97%

• 3%

• 71%

• 0.6%

Tags

NGSS.MS-ESS2-4

The ocean is made up of salt water, which is ____% of the water on Earth. The remaining ____% of water water is freshwater .

• 97%, 3%

• 71%, 29%

• 3%, 97%

• 80%, 20%

Tags

NGSS.MS-ESS2-4

What are the two main forces that propel/move water through the water cycle? Earth's _______ & the Sun's ______.

• Earth's rotation & the Sun's gravity

• Earth's gravity & the Sun's radiation

• Earth's magnetism & the Sun's energy

• Earth's gravity & the Sun's rotation

Tags

NGSS.MS-ESS2-4

What are tides caused by?

• Ocean currents
• Wind patterns
• Earth's rotation
• the gravitational pull of the moon and the sun

Tags

NGSS.MS-PS2-4

What are waves caused by?

• Natural disasters
• Chemical reactions
• Magnetic fields
• Wind

The Earth's rotation causes 2 high tides and 2 low tides within a 24 hour period.

• True

• False

What are the three things that cause deep ocean currents?

• high salnity

• wind

• differences in density

• gravitational pull of the moon and sun

• changes in temperature

Tags

NGSS.MS-ESS2-6

Salt is made up of ____, which has a chemical formula of ____.

• Sodium and Chlorine, NaCl

• Magnesium and Iron, NaCl

• Sodium and Chlorine, NaCo

• Magensium and Iron, NaCo

Tags

NGSS.MS-PS1-1

What is salinity?

• The amount of sediment in the water

• The amount of salt in water

• One liter of salt

• The process where a liquid changes into a gas

What percentage of Earth's surface is covered with water?

• 97%

• 40%

• 71%

• 25%

Tags

NGSS.MS-ESS2-4