Ocean Currents

According to the water cycle, water moves from the ocean to the atmosphere and back again. Why isn't rain water salty?

• Water evaporates, salt doesn't

• Water decreases

• Salt inreases

Tags

NGSS.MS-ESS2-4

The wind and salt content are responsible for creating ___ in the oceans.

• Buoys

• Currents

• Waves

Tags

NGSS.MS-ESS2-6

What current keeps England from getting extremely cold in the winter?

• Australian Current

• Alantic Current

• Gulf Stream

Tags

NGSS.MS-ESS2-6

Salt water is...

• More dense than fresh water

• Less dense than fresh water, so it floats

• more dense than fresh water, so it sinks

What do scientists deploy to collect data on current flow?

• Data Marker Buoy

• Digital Clocks

• Analog clocks

Another way scientists track currents is to deploy...

• Drifters

• Drift Cards

• Canoes

Newport Aquarium in Northern Kentucky has aquariums that hold thousands of gallons of water. Do these aquariums have currents?

• Yes

• No

• Maybe

Oceans are salty and rivers and lakes aren't because...

• The salt evaporates and leaves fresh water

• The salt is eroded by the water in the rivers and lakes and is carried away from rivers and into the sea.

• The salt stays in the rivers and lakes

Which is true?

• The oceans are getting saltier because of all the salt and mineral runoff from rocks in rivers and lakes.

• The oceans are getting less salty

• The level of salt in the ocean is mostly constant.

What makes water in the ocean move in ocean currents? (What is the source of energy?)

• The Earth

• The moon

• The sun

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-6