Social studies
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The document discusses oceans and includes questions and answers about ocean facts. Some key points: - Salt in oceans comes from minerals washed from land, not rocks. Water pressure depends on amount of overlying water, not salt content. Dead Sea has saltiest water, not oceans. - Scientists study oceans using submarines, not planes or helicopters. Ocean conditions depend more on temperature than surface. - A video discusses how oceans are important ecosystems but are being harmed by humans through issues like warming, pollution, and overfishing. Oceans need protection.
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Social studies blog[11]
The document discusses various topics related to oceans including:
- Fish and corals are dying as the ocean warms up and humans are harming oceans.
- The ocean is a large ecosystem that is home to many plants and animals but is often forgotten.
- Oceans move water through waves, tides, currents and storms and contain secrets yet to be discovered.
- Humans must help protect oceans which provide beauty, resources and are warming.
Social Studies
The document discusses different aspects of Earth's oceans. It provides information about where salt in the oceans comes from, ocean pressures and temperatures, and how scientists study the oceans. It also defines key ocean terms like waves, tides, currents and discusses forces that shape shorelines and features seen along coasts. Finally, it outlines the different zones of the ocean floor from the continental shelf down to the abyssal plain.
Social Studies
The document discusses Earth's oceans and how ocean water moves. It provides questions and answers about where salt in the oceans comes from, ocean temperatures, ocean study techniques, ocean currents, waves, tides, and human impacts on shorelines. Key topics covered include the salinity of ocean water, ocean layers and temperatures, ocean waves like tsunamis and tides, ocean currents near coasts versus surface currents, and how erosion can change shoreline features.
Oceans Workshop
The document discusses the sources of salt in Earth's oceans and various facts about ocean salinity, temperature, and pressure. It notes that most salt comes from sodium chloride washed from minerals on land. While ocean salinity does not vary much by location, water pressure depends on depth rather than the amount of salt. Scientists study oceans using submarines rather than planes or helicopters.
Climate and vegetation
This document discusses climate and vegetation in Europe. It defines weather and climate, noting that climate refers to weather conditions over a long period, around 30 years. It describes the five main climate types in Europe: Atlantic, mountain, Mediterranean, polar, and continental. It also notes that climate affects human activities like clothing, housing, food, and leisure. Finally, it states that the main cause of climate change is rising emissions of gases like carbon dioxide that increase the greenhouse effect and global heat.
Weather and Climate
Weather is defined as atmospheric conditions over short periods, while climate describes conditions over many years. Climate is generally determined by proximity to the equator, altitude, and influence of nearby seas. Spain experiences several climate types including Atlantic, Continental, Mediterranean, Continental-Mediterranean, Mountain, and Subtropical climates.
European lanscape
Europe is a peninsula located in the Northern Hemisphere that is surrounded by the Arctic Ocean, Asia, the Mediterranean Sea, and the Atlantic Ocean. Most Europeans live on plains that have ideal conditions for human settlements, and the landscapes of Europe have been significantly modified by human activity over time. The climate and vegetation of Europe varies regionally, with temperature climates like oceanic, Mediterranean, and continental predominating, in addition to some polar and mountain climates.
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Ocean water is a complex solution made up of 96.5% water along with dissolved gases, solids, and tiny organisms. It contains around 75 different chemicals, with the six most abundant being chlorine, sodium, magnesium, sulfur, calcium, and potassium. Salinity increases with evaporation rate and depth, and the relative amounts of dissolved solids remains constant globally due to ocean mixing. Surface water absorbs infrared sunlight, decreasing in temperature with increasing depth due to formation of a thermocline where warm and cold water do not easily mix.
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Social studies blog[11]
The document discusses various topics related to oceans including:
- Fish and corals are dying as the ocean warms up and humans are harming oceans.
- The ocean is a large ecosystem that is home to many plants and animals but is often forgotten.
- Oceans move water through waves, tides, currents and storms and contain secrets yet to be discovered.
- Humans must help protect oceans which provide beauty, resources and are warming.
Social Studies
The document discusses different aspects of Earth's oceans. It provides information about where salt in the oceans comes from, ocean pressures and temperatures, and how scientists study the oceans. It also defines key ocean terms like waves, tides, currents and discusses forces that shape shorelines and features seen along coasts. Finally, it outlines the different zones of the ocean floor from the continental shelf down to the abyssal plain.
Social Studies
The document discusses Earth's oceans and how ocean water moves. It provides questions and answers about where salt in the oceans comes from, ocean temperatures, ocean study techniques, ocean currents, waves, tides, and human impacts on shorelines. Key topics covered include the salinity of ocean water, ocean layers and temperatures, ocean waves like tsunamis and tides, ocean currents near coasts versus surface currents, and how erosion can change shoreline features.
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The document discusses the sources of salt in Earth's oceans and various facts about ocean salinity, temperature, and pressure. It notes that most salt comes from sodium chloride washed from minerals on land. While ocean salinity does not vary much by location, water pressure depends on depth rather than the amount of salt. Scientists study oceans using submarines rather than planes or helicopters.
Climate and vegetation
This document discusses climate and vegetation in Europe. It defines weather and climate, noting that climate refers to weather conditions over a long period, around 30 years. It describes the five main climate types in Europe: Atlantic, mountain, Mediterranean, polar, and continental. It also notes that climate affects human activities like clothing, housing, food, and leisure. Finally, it states that the main cause of climate change is rising emissions of gases like carbon dioxide that increase the greenhouse effect and global heat.
Weather and Climate
Weather is defined as atmospheric conditions over short periods, while climate describes conditions over many years. Climate is generally determined by proximity to the equator, altitude, and influence of nearby seas. Spain experiences several climate types including Atlantic, Continental, Mediterranean, Continental-Mediterranean, Mountain, and Subtropical climates.
European lanscape
Europe is a peninsula located in the Northern Hemisphere that is surrounded by the Arctic Ocean, Asia, the Mediterranean Sea, and the Atlantic Ocean. Most Europeans live on plains that have ideal conditions for human settlements, and the landscapes of Europe have been significantly modified by human activity over time. The climate and vegetation of Europe varies regionally, with temperature climates like oceanic, Mediterranean, and continental predominating, in addition to some polar and mountain climates.
8.1 ocean properties
Ocean water is a complex solution made up of 96.5% water along with dissolved gases, solids, and tiny organisms. It contains around 75 different chemicals, with the six most abundant being chlorine, sodium, magnesium, sulfur, calcium, and potassium. Salinity increases with evaporation rate and depth, and the relative amounts of dissolved solids remains constant globally due to ocean mixing. Surface water absorbs infrared sunlight, decreasing in temperature with increasing depth due to formation of a thermocline where warm and cold water do not easily mix.
9th Grade Chapter 4 Lesson 1
The document provides an overview of key concepts in oceanography, including the composition of ocean water, factors that influence salinity and temperature, density and pressure dynamics, types of ice found in oceans, and different ocean currents. Surface currents move horizontally and are influenced by factors like wind and land masses, while subsurface currents flow beneath the surface due to variations in water density.
SoCiAl sTuDiEs BlOg
The document provides information about oceans and shorelines through a series of reading comprehension activities. It defines key terms like shore, headland, tide pool, and jetty. It describes how waves and erosion can change shorelines over time, forming features like beaches, cliffs, and rock formations. Human activities like construction can also impact shorelines by making beaches smaller or filling channels. The document notes that explorers are now able to travel deeper into oceans using technologies like diving bells, suits, and submarines, as well as remote-controlled vehicles.
climate and vegetation
This document discusses climate and vegetation. It begins by explaining how the Earth's rotation and revolution around the sun cause seasons. It then defines weather as short-term atmospheric conditions while climate describes average weather patterns over long periods. Factors like sunlight, wind, elevation and location influence climate patterns. The Earth is divided into tropical, middle and high latitude climate zones based on distance from the equator. Finally, it describes how different vegetation regions like forests, savannas, grasslands and deserts correspond to climate patterns and which vegetation region the reader likely lives in.
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Higher oceans caused by global warming are damaging coastlines and will continue to rise with continued warming. Global warming is endangering Arctic animals by melting ice sheets and changing habitats. Air pollution, the main driver of global warming, traps heat in the atmosphere and exacerbates the effects. Polar ice is melting which threatens polar bears and other species that rely on sea ice for survival.
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The document discusses how oceans and mountains affect weather and climate. It states that oceans moderate temperatures worldwide by absorbing heat more slowly than land. Cities near oceans, like San Francisco, tend to have milder temperatures than inland cities at the same latitude, like Nashville. Mountains also influence climate by causing rising air to cool and produce rain on their windward sides, while their leeward sides receive less rain and are warmer.
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this lesson talks about tropical environment specially tropical climate which helps to A level Cambridge exam students to prepare themselves
Earth oceans
The ocean water is salty because minerals are washed from the land into the ocean where the water evaporates, leaving the salt behind. While salinity does not vary much by location, other conditions like temperature and pressure change with depth. Most of the ocean is deep and cold, with temperatures between 0-3 degrees Celsius. Pressure also increases with depth as more water pushes down from above.
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This is PPT of class -7 ,Geography, Chapter -5, Water
Reference book is NCERT, .
This is useful for teachers who teach in CBSE and Chhattisgarh board.
so download and use online and offline teaching.
Earth oceans
Ocean water is salty because salt is left behind when water evaporates from the ocean surface. The salinity of ocean water is relatively consistent everywhere but varies more in places like the Dead Sea where evaporation far exceeds water inflow. While ocean surface water is warmed by the sun, about 90% of the ocean is deep and cold with temperatures between 0-3 degrees Celsius. Ocean water absorbs and scatters light, getting darker with depth until there is no light at around 150 meters in some areas or only 30 meters in others. Water pressure also increases with depth as more water pushes down, reaching crushing levels at great ocean depths.
We live in a greenhouse
The greenhouse effect plays a crucial role in warming the Earth's surface to support life. About half the sunlight that reaches the atmosphere passes through to the surface, and greenhouse gases like carbon dioxide and methane absorb and radiate back about 90% of the heat toward the surface, warming it to an average temperature that can support life. If the greenhouse effect is changed by human activity, the consequences will likely include a warmer Earth and oceans, increased evaporation and precipitation, and rising sea levels as glaciers and ice melt and ocean water expands from the heat.
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The document discusses various aspects of water surrounding the Earth. It describes the five major oceans of the world and explains the water cycle process. It discusses different movements of ocean water including waves caused by wind and ocean currents originating from solar heating, density differences, the Earth's rotation, and planetary winds. Tides are also caused by the gravitational pull of the sun and moon and come in two types: spring and neap. Oceans are important to humans as they facilitate trade, provide abundant plant and mineral resources, and influence climate. The conclusion discusses the devastating 2004 Indian Ocean tsunami that killed many and the relief efforts that followed.
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The document summarizes key concepts about ocean circulation, including that salinity and temperature variations create density differences that drive circulation patterns at the surface and deep ocean levels, with currents in turn affecting global and regional climates and climate changes altering currents. Pressure also increases with depth and surface currents are controlled by factors like temperature, wind, and the Coriolis effect.
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The document discusses the water cycle and the hydrosphere. It describes how water circulates between oceans, atmosphere and land through evaporation, condensation and precipitation in the water cycle. It also explains that the hydrosphere comprises of rivers, glaciers, oceans, lakes, groundwater and streams. Further, it provides details about the different states of water - solid (ice sheets, frost, glaciers), liquid (rivers, oceans) and gas (water vapor, fog) and where each of these can be found on Earth.
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El Niño is a periodic warming of ocean waters in the eastern Pacific that occurs every 2-7 years. It causes changes to weather patterns around the world like droughts. Ocean currents are driven by factors like wind and the Coriolis effect. The ocean can be divided into layers with different temperatures and pressures. Tides are caused by the gravitational pull of the moon and sun. They have high and low phases. Salinity measures the salt content in ocean water, which is mostly sodium chloride. Evaporites form when minerals precipitate out of waters with high salinity in areas with high evaporation rates.
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1) The document describes various features of ocean morphology including seamounts, guyots, abyssal plains, continental slopes, submarine canyons, ocean trenches, and mid-ocean ridges.
2) It also discusses variations in ocean temperature with latitude, depth, and between surface and deeper waters. The thermocline and pycnocline are boundaries where temperature and density rapidly change with depth.
3) Salinity also changes with depth and latitude, being higher in warm tropical waters due to evaporation and lower in polar waters due to freshwater input from rivers.
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This document defines key vocabulary words from chapters 1-3 of a book about salt, including definitions for animal, blood, body, crystal, flavor, grain, mineral, mummies, muscles, plant, preserve, refrigerator, rock, salt, seasoning, and spoil. It also provides the definitions of control, harmful, invented, live, and sodium.
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Salt Rocks! provides vocabulary words related to salt mining and geology, including terms like dissolved, evaporate, freeze, haul, mine, mountain, natural, precious, and villages. The document defines key words and concepts for understanding how salt is extracted from places in nature and used in various applications.
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The document discusses different arithmetic operations that can be performed on fractions, including addition, subtraction, multiplication, and division. It provides examples of how to convert fractions to equivalent fractions with a common denominator to allow for addition and subtraction. For multiplication and division, it notes that fractions can be directly multiplied or divided without requiring a common denominator. Steps are demonstrated through examples for how to perform each operation on fractions.
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SoCiAl sTuDiEs BlOg
The document provides information about oceans and shorelines through a series of reading comprehension activities. It defines key terms like shore, headland, tide pool, and jetty. It describes how waves and erosion can change shorelines over time, forming features like beaches, cliffs, and rock formations. Human activities like construction can also impact shorelines by making beaches smaller or filling channels. The document notes that explorers are now able to travel deeper into oceans using technologies like diving bells, suits, and submarines, as well as remote-controlled vehicles.
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The document discusses how oceans and mountains affect weather and climate. It states that oceans moderate temperatures worldwide by absorbing heat more slowly than land. Cities near oceans, like San Francisco, tend to have milder temperatures than inland cities at the same latitude, like Nashville. Mountains also influence climate by causing rising air to cool and produce rain on their windward sides, while their leeward sides receive less rain and are warmer.
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The document summarizes key aspects of Earth's atmosphere. It describes the atmosphere as a thin layer of air that protects the planet and maintains a balance of absorbed and emitted heat. The atmosphere is made up primarily of nitrogen and oxygen but originally contained more carbon dioxide. Over time, oxygen increased through photosynthesis while other layers like the ozone layer developed. The atmosphere has lower layers like the troposphere where weather occurs and upper layers that absorb sunlight. Gases in the atmosphere contribute to pressure and temperature variations and the protective ozone layer.
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The ocean water is salty because minerals are washed from the land into the ocean where the water evaporates, leaving the salt behind. While salinity does not vary much by location, other conditions like temperature and pressure change with depth. Most of the ocean is deep and cold, with temperatures between 0-3 degrees Celsius. Pressure also increases with depth as more water pushes down from above.
Class 7 ch 5 water-pdf
This is PPT of class -7 ,Geography, Chapter -5, Water
Reference book is NCERT, .
This is useful for teachers who teach in CBSE and Chhattisgarh board.
so download and use online and offline teaching.
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Ocean water is salty because salt is left behind when water evaporates from the ocean surface. The salinity of ocean water is relatively consistent everywhere but varies more in places like the Dead Sea where evaporation far exceeds water inflow. While ocean surface water is warmed by the sun, about 90% of the ocean is deep and cold with temperatures between 0-3 degrees Celsius. Ocean water absorbs and scatters light, getting darker with depth until there is no light at around 150 meters in some areas or only 30 meters in others. Water pressure also increases with depth as more water pushes down, reaching crushing levels at great ocean depths.
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The document discusses various aspects of water surrounding the Earth. It describes the five major oceans of the world and explains the water cycle process. It discusses different movements of ocean water including waves caused by wind and ocean currents originating from solar heating, density differences, the Earth's rotation, and planetary winds. Tides are also caused by the gravitational pull of the sun and moon and come in two types: spring and neap. Oceans are important to humans as they facilitate trade, provide abundant plant and mineral resources, and influence climate. The conclusion discusses the devastating 2004 Indian Ocean tsunami that killed many and the relief efforts that followed.
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The document summarizes key concepts about ocean circulation, including that salinity and temperature variations create density differences that drive circulation patterns at the surface and deep ocean levels, with currents in turn affecting global and regional climates and climate changes altering currents. Pressure also increases with depth and surface currents are controlled by factors like temperature, wind, and the Coriolis effect.
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The document discusses the water cycle and the hydrosphere. It describes how water circulates between oceans, atmosphere and land through evaporation, condensation and precipitation in the water cycle. It also explains that the hydrosphere comprises of rivers, glaciers, oceans, lakes, groundwater and streams. Further, it provides details about the different states of water - solid (ice sheets, frost, glaciers), liquid (rivers, oceans) and gas (water vapor, fog) and where each of these can be found on Earth.
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El Niño is a periodic warming of ocean waters in the eastern Pacific that occurs every 2-7 years. It causes changes to weather patterns around the world like droughts. Ocean currents are driven by factors like wind and the Coriolis effect. The ocean can be divided into layers with different temperatures and pressures. Tides are caused by the gravitational pull of the moon and sun. They have high and low phases. Salinity measures the salt content in ocean water, which is mostly sodium chloride. Evaporites form when minerals precipitate out of waters with high salinity in areas with high evaporation rates.
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2) It also discusses variations in ocean temperature with latitude, depth, and between surface and deeper waters. The thermocline and pycnocline are boundaries where temperature and density rapidly change with depth.
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The document summarizes key aspects of air and the atmosphere. It describes the composition of the atmosphere, which is mostly nitrogen and oxygen. It also notes that the atmosphere is divided into five layers - the troposphere, stratosphere, mesosphere, thermosphere and exosphere. The first layer, the troposphere, extends from the Earth's surface to around 13 km and contains the air we breathe. Weather occurs within the troposphere, while climate refers to average weather conditions over a longer period of time. The document also discusses air pressure, winds, moisture, clouds, precipitation and the different types of rainfall.
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Properties_of_Ocean_Water_2017_A-F.pptx
Ocean water is a mixture of gases, salts, and minerals dissolved in water. The average salinity is 35 parts per thousand, ranging from 33-38 ppt depending on evaporation and freshwater input. Salinity increases with depth and influences ocean layering, with warmer, fresher water at the surface and colder, saltier water in the deep zone. Density increases with depth and salinity, and decreases with temperature, influencing global ocean circulation patterns.
Chemical and physical features of seawater and the
Water is a polar molecule that can exist as a solid, liquid, or gas. It has unique properties including its ability to dissolve more substances than any other natural liquid. Seawater consists of dissolved salts and gases. Surface currents are driven by wind and deflected by the Coriolis effect, forming gyres. Deeper circulation is driven by water density variations from temperature and salinity changes, in a process called thermohaline circulation. Waves are caused by wind while tides are caused by the gravitational pull of the moon and sun.
Online assignment preethui
This document provides an overview of natural resources found in the sea ("SEA"). It discusses how the sea moderates the Earth's climate and is involved in water, carbon, and nitrogen cycles. The sea is divided into the Atlantic, Pacific, Indian, and Arctic oceans. The sea provides resources for human development, trade, travel, and more. Key aspects of the sea discussed include temperature, oxygen levels, waves, tides, bathymetry, and more. In conclusion, the sea contains salt water and is essential for human development, though too saline for direct consumption. A standardized form of artificial seawater is often used for scientific purposes.
Chapter 13 – oceans and beaches
The document summarizes how oceans shape our lives by discussing the distribution of water on Earth, properties of ocean water, ocean motions, shoreline formations, and the barrier islands of North Carolina's Outer Banks. It explains that barrier islands formed due to rising sea levels, a large sand supply, a gently sloping coast, and wave energy. Humans are increasing the rate of barrier island migration through armoring and development, which reduces available sand and increases erosion risks. Ultimately, one cannot have buildings and beaches in the long run due to the dynamic coastal environment.
Hydro saltwater
The document discusses several key physical properties of oceans including:
1) Waves are caused mainly by wind, with stronger or longer winds creating larger waves. Tides are caused by the moon's gravity pulling on Earth's water and cause high and low tides each day.
2) The most common chemical in ocean water is sodium chloride (salt). Salinity refers to the salt concentration, which varies due to temperature, evaporation, and proximity to freshwater sources.
3) Ocean currents are caused by differences in temperature, salinity, and ocean floor topography. The Coriolis effect causes currents and winds to curve as the Earth rotates.
Hydro Salt
The document discusses several key physical properties and features of the oceans. It explains that wind causes ocean waves and that tides are caused by the gravitational pull of the moon. It also notes that the most common chemical in ocean water is sodium chloride (salt), and that salinity refers to the salt concentration in water. The document further describes ocean currents, noting that surface currents are caused by wind while deep currents are caused by differences in temperature, salinity, and ocean floor shape. It explains how the Coriolis effect impacts ocean currents. Additional topics covered include methods of ocean exploration like sonar, submersibles, and satellites, as well as seafloor topography features such as the continental shelf, continental slope, and
Earth`s ocean
This document provides a series of true/false questions about Earth's oceans. It tests knowledge about where salt in the oceans comes from, the main type of salt, factors that determine salinity and water pressure, typical ocean water temperatures, and tools scientists use to study oceans. The answers provide explanations for each question, clarifying that most salt comes from minerals washed from land, salinity measures salt content, the Dead Sea has the saltiest water, ocean conditions vary most by depth and temperature rather than location, and scientists use submarines rather than planes to directly study oceans.
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Chemical and physical features of seawater and the
Chemical and physical features of seawater and the
Chemical and physical features of seawater and the
Chemical and physical features of seawater and the
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Drinking too much water can affect human excretion in several ways:
1. Ingesting excess water increases total blood volume, putting unnecessary strain on the heart and blood vessels.
2. The kidneys must work overtime to filter out the excess water from the bloodstream.
3. The filtration system in the kidneys, including specialized capillary beds called glomeruli, can become damaged over time due to the unnecessary wear and tear from filtering large amounts of water.
Science
Drinking too much water can affect human excretion in several ways:
1. Ingesting excess water increases total blood volume, putting unnecessary strain on the heart and blood vessels.
2. The kidneys must work overtime to filter out the excess water from the bloodstream.
3. The filtration system in the kidneys, including specialized capillary beds called glomeruli, can become damaged over time due to the unnecessary wear and tear from filtering large amounts of water.
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Math Activities
The document discusses volume and capacity measurements. It defines volume as the measure of an object's ability to hold a substance, while capacity is the space taken up by the object itself. Examples are provided to distinguish between capacity, which is used to measure liquids in mL or L, and volume, which uses cubic units. A word problem asks how many gallons of water Ana uses in a week if she takes 3 showers a day using 50 gallons each. Another word problem asks how many liters of water would be damaged if 83 drops of oil are spilled, where each drop damages 25 L of water.
Science Activities
Drinking too much water can affect human excretion in several ways:
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2. The kidneys must work overtime to filter out the excess water from the bloodstream.
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The document discusses volume and capacity measurements. It defines volume as the measure of an object's ability to hold a substance like a solid, liquid, or gas, while capacity is the space taken up by the object itself. Examples are provided of capacity measurements in milliliters for liquids like shampoo and soda. The document then poses questions about daily activities like showering, brushing teeth, flushing toilets, and washing hands to estimate water usage and come up with word problems involving volume calculations.
Human Excretion
The document discusses the human excretory system, which removes waste from the body through urine and sweat. It describes the key organs - kidneys, ureters, urinary bladder, urethra, liver, skin and lungs - and their functions. The kidneys balance salt levels in the body and produce urine, while the ureters and bladder store urine before it passes through the urethra. The liver converts ammonia to urine and the skin and lungs also remove waste, through sweat and exhaled carbon dioxide respectively.
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El documento habla sobre la escasez mundial del agua. Señala que la agricultura es el principal consumidor de agua dulce, usando cerca del 70% del agua mundial. También menciona que el crecimiento de la población contribuye a la escasez de agua, ya que se necesita más agua para satisfacer las necesidades de más personas y para la producción agrícola. El documento concluye diciendo que el agua ha sido identificada como una prioridad mundial.
Math Workshops
Volume measures the space an object occupies, while capacity measures how much a container can hold. The document distinguishes between volume and capacity by providing examples - capacity is used to describe the amount of liquid a container holds, like milliliters of shampoo or liters of soda, while volume describes the space solids occupy, like kilograms of rice or cereal.
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This document discusses discovering volume through measurements and a workshop. It was written by Maria Camila Martinez and Elena Rubio. The authors explore how to measure volume and hold a workshop on the topic.
Español
La escasez de agua afecta a mucha gente y es un problema importante que requiere un uso más productivo y sostenible de este recurso. La agricultura, como el principal consumidor de agua dulce en el mundo, debe buscar soluciones junto con organizaciones como la FAO. Además, el crecimiento de la población mundial empeora la escasez de agua al aumentar la demanda de este recurso y de alimentos.
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- 3. QUESTIONS… Salt in the oceans comes from rocks (F) Most from the salt is sodium chloride= table salt (T) Water pressure is the amount of salt water (F) Ocean have the saltiest water on Earth(F) The salinity of the oceans change a lot from place to place (F) Something else that depends on the ocean pressure is depth(F) At the surface the water is warmed by sea animals (F) 75% of the oceans has a temperature between 0° c and 3°c (F) To study the oceans scientist use planes or helicopters (F) Some of the conditions of the oceans depends on the water surface (F)
- 4. ANSWERS… FALSE: Salt in the oceans comes from minerals that are washed out from land. The downward push of water is called water pressure. The saltiest water is of Dead Sea, a lake from Israel. The salinity doesn´t change much from place to place. Something else that depends on the ocean´s pressure. At the surface the water is warmed by the sun and by warm air above the surface. Is about 90%. The ocean has a temperature between 0°C and 3°C. To study the ocean the scientist use submarines. But other condition depends on the temperature not water surface.
- 6. VIDEO: ONCE UPON A TIDE
- 9. Ocean is very important to humans.
- 10. The ocean is a big ecosystem. (Contains most plants and animals).
- 11. Everyone has forgotten the ocean.
- 12. The ocean is very interesting,misterious and has many secrets.
- 13. The ocean is the home of many living things.
- 14. Fish are filled of venom.
- 15. The ocean is warming.
- 16. Oceans provide some medicines.
- 17. Humans cause all the harm to oceans.
- 18. Oceans are beautiful and we shouldn’t harm it.
- 19. Oceans need our help.
- 20. Oceans have amazing things
- 23. Tsunami
- 24. Tide
- 25. Storm Surage
- 26. El niño2.Compare and contrast: Currents-waves 3.How is surface current different from a current near the coast? 4.Compare the types of tides.
- 27. Answers 1. 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.
- 28. 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.
- 29. VIDEO: THE MOON AND THE TIDES