SOCIALSTUDIES

EARTH´S OCEANS

1) Salt in the oceans comes from rocks (F)2) Most from the salt is sodium chloride= table salt (T)3) Water pressure is the amount of salt water (F)4) Ocean have the saltiest water on Earth(F)5) The salinity of the oceans change a lot from place to place (F)6) Something else that depends on the ocean pressure is depth(F)7) At the surface the water is warmed by sea animals (F)8) 75% of the oceans has a temperature between 0° c and 3°c (F)9) To study the oceans scientist use planes or helicopters (F)10)Some of the conditions of the oceans depends on the water surface (F)

QUESTIONS…

1) Salt in the oceans comes from minerals that are washed out from land.3) The downward push of water is called water pressure.4) The saltiest water is of Dead Sea, a lake from Israel.5) The salinity doesn´t change much from place to place.6) Something else that depends on the ocean´s pressure. 7) At the surface the water is warmed by the sun and by warm air above the

surface.8) Is about 90%. The ocean has a temperature between 0°C and 3°C.9) To study the ocean the scientist use submarines.10)But other condition depends on the temperature not water surface.

ANSWERS…FALSE:

EARTH´S OCEANS

VIDEO:ONCE UPON A

TIDE

Taking NotesOnce upon a tide

•Fish are dying .•Corals are Bleaching.•Ocean is very important to humans.•The ocean is a big ecosystem. (Contains most plants and animals).•Everyone has forgotten the ocean.•The ocean is very interesting,misterious and has many secrets.•The ocean is the home of many living things.•Fish are filled of venom.•The ocean is warming.•Oceans provide some medicines.•Humans cause all the harm to oceans.•Oceans are beautiful and we shouldn’t harm it.•Oceans need our help.•Oceans have amazing things•Oceans are warming

HOW DOES OCEAN

WATER MOVE?

How does ocean water move?1.Define:•Waves •Tsunami•Tide•Storm Surage•El niño

2.Compare and contrast: Currents-waves

3.How is surface current different from a current near the coast?

4.Compare the types of tides.

Answers1.Waves: A wave is the up and down movement of surface water

Tsunami: A very large ocean wave caused by an underwater earthquake or volcanic eruption.

Tide: The rise and fall of the water level of the water in the ocean.

Storm Surage: The mound of water that pushes onto shore in a hurricane

El niño: A warming of the surface water of the eastern and central Pacific Ocean, occurring every 4 to 12 years and causing unusual global weather patterns. An El Niño is said to occur when the trade winds that usually push warm surface water westward weaken, allowing the warm water to pool.

2.

3. If the winds don’t blow toward the west the warm surface water, stays near the coast. The deep, cold currents don’t reach the surface, and the coastal water stays very warm.

4.

WAVES CURRENTS•It’s the up and down movement of surface water.

•Air blowing across water makes waves.

•It’s a stream of water that follows like a river through the ocean.

•Large currents in the open ocean are known as surface currents.

LOW TIDE HIGH TIDE• In the parts of the ocean between the bulges, the water level is lower. At those places low tides occur.

• The level of the ocean is higher in the bulges producing a high tide.

VIDEO:THE MOONAND THE

TIDES

THE MOON AND THE

TIDESBy: María Camila

MartínezSocial Studies

To: T. Angel WatlerColegio Bennett

5-A

INTRODUCTIONIn this power point presentation I am going to talk about a video we watchAnd I am going to explain it. I HOPE YOU LIKE IT !!

PRIOR KNOWLEDGE THE MOON CREATES TIDESThe moon tries to pull at anything on the Earth to bring it closer. But, the Earth is able to hold onto everything except the water. Since the water is always moving, the Earth cannot hold onto it, and the moon is able to pull at it.

A tide is the rise and fall in the water A wave is the up and

down movement of surface water

There are 2 types of tides the high tide and the low tide A current is a stream

of water that follows like a river through

the ocean

OCEANS

HIGH AND LOW TIDESEach day, there are two high tides and two low tides. The ocean is constantly moving from high tide to low tide, and then back to high tide. There is about 12 hours and 25 minutes between the two high tides.

THE EARTH ROTATES RAPIDLY THAN THE MOON

The Earth rotates about its axis faster than the Moon revolves around the Earth, and this rapid rotation carries the tidal bulge of the oceans forward of the Moon in its orbit.

Every century Earth´s rotation takes about 1/500 seconds longer.