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CRCT Question. What is the most abundant salt in the ocean? Hydrogen dioxide Sodium Chloride Calcium oxide Sodium dioxide. ATTENTION. Ocean Test will be Tuesday January 31 st. Why is this important?. How do currents affect us?!?. Today’s Mission.

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Presentation Transcript
crct question
CRCT Question

What is the most abundant salt in the ocean?

  • Hydrogen dioxide
  • Sodium Chloride
  • Calcium oxide
  • Sodium dioxide

Ocean Test will be


January 31st

why is this important
Why is this important?

How do currents affect us?!?

today s mission
Today’s Mission

I facilitate with your questions/previous knowledge

Tides, Waves, Currents

Activities, Games, and Video Clips

part 1 tag the text notes

Part 1 “tag the text notes”

What questions and comments do you want to add?

ocean motions
Ocean Motions

Waves – are pulses of energy that moves through the ocean.

  • Caused by wind blowing over long distances. Also affected by how long the wind has been blowing.
  • Deep water is not affected by wave motion as much as surface.

Tides – are the daily rise and fall of the sea level along a coastline

  • They are caused by the gravitational pull of the moon and sun on the earth.
  • There are 2 high tides and 2 low tides every 24 hours
  • This means the tide goes from high to low in about 6 hours.
  • This also means that every there is a 12 hour time period between each high and low tide

Spring tides

  • Are tides that are especially high or low during a 24 hour period.
  • They are caused by the earth, moon, and sun lining up in a straight line and the pull on the oceans is especially strong.

Neap tides

  • Tides that show very little change between high and low tide during a 24 hour period.
  • They are caused by the earth, moon, and sun forming a right angle and the pull on the oceans is weak

Currents – an ocean current is a “river” of moving water with the ocean.

Example – Atlantic Gulf Stream

  • The water in the current has the same properties and does not mix much with the rest of the ocean.
  • All ocean currents flow in predicable patterns
  • Surface currents, like waves, are driven and determined by wind and the Coriolis effect
  • Coriolis effect – the apparent curving of the path of a moving object from an otherwise straight path due to the Earth’s rotation.
  • Ocean currents can affect climate by warming or cooling the air above the current. Example – England is warmer than it should be based on its latitude because of the Gulf Stream current coming from the southern USA.
part 2 surface vs deep

Part 2 Surface vs. Deep

What did you find out


It in Action!

major points
Major Points


  • Caused by wind
  • Paths are deflected due to corealis effect

Remember Corealis is the path of the currents due to the rotation of the Earth


  • Caused by the change of density
  • Temperature and salinity effects the density
  • Caused from the polar ice caps
part 3 brain pop tides and waves

Part 3 Brain PopTides and Waves

First time: Watch

Second time: Fill out Notes


It in Action!