How trash moves around the ocean (Primary) - Lesson Two
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La durée de la leçon est: 45 minIntroduction
Lesson Two – What are ocean currents?
This lesson discusses what ocean currents are and where they occur.
Learning activities:
Writing and discussion exercises about ocean currents.
Experiment to show deep water currents.
Instructions
Time: 45 minutes
Contact: education@seashepherdglobal.org
© Sea Shepherd 2022
Éléments de cette leçon
Slide 1 - Diapositive
This lesson is provided by Sea Shepherd. Sea Shepherd is a marine conservation organisation with a mission to protect the ocean and marine wildlife. Sea Shepherd works globally on a range of issues impacting the ocean, running numerous direct action campaigns each year. Ocean pollution is one area Sea Shepherd is addressing in order to protect marine wildlife.
Slide 2 - Diapositive
During the lesson we will use these icons to identify the learning actions.
What happens to pollution when
it ends up in the ocean?
Slide 3 - Question ouverte
Ask students “What do you think happens to the trash when it enters the ocean?’
“Where does it go?”
“Where does it go?”
Slide 4 - Diapositive
Once trash and pollution reach the ocean it gets caught up in ocean currents.
Ask students “What is an ocean current?”
Ask students “What is an ocean current?”
Slide 5 - Diapositive
Ocean currents are the continuous, predictable and directional movement of seawater by gravity, water density (weight of the water) and wind.
Continuous – When? they happen all the time.
Predictable – Why & how? we know it’s going to happen.
Directional – Where? water moves in one direction.
An ocean current is the horizontal movement of water.
Continuous – When? they happen all the time.
Predictable – Why & how? we know it’s going to happen.
Directional – Where? water moves in one direction.
An ocean current is the horizontal movement of water.
Slide 6 - Diapositive
Ocean currents can move along the surface of the ocean. Created by wind and waves.
Ocean currents can also move in deep-water, created when cold water moves to the seafloor and warm water rises.
Ocean currents can also move in deep-water, created when cold water moves to the seafloor and warm water rises.
Slide 7 - Diapositive
Ocean currents move along the coast of countries.
Discuss with students why this might be.
Discuss with students why this might be.
Slide 8 - Diapositive
One ocean current that is well known is the Gulf stream which starts off Florida, USA. The warm water of the Gulf stream moves up the east coast of the USA and Canada, and then across the Atlantic to Europe.
Slide 9 - Vidéo
This video shows how debris washes in on the ocean currents and tides.
https://www.youtube.com/watch?v=wL_mpGTAwuc
https://www.youtube.com/watch?v=wL_mpGTAwuc
Slide 10 - Diapositive
Cet élément n'a pas d'instructions
Slide 11 - Diapositive
Refer Teachers Guide for Learning Activities.
