Essay about Ocean Adventure 500

Essay about Ocean Adventure 500

The big box smiled and said to me: "You are really good."

The chief asked us to open the big box and take a look. , see what's in the box. When we were about to open the box, I seemed to hear the voice of "Help", which seemed to come from inside the box. I immediately opened the box with the soldiers and found a small whale inside the box. This little whale actually spoke when he saw us. He said: "There is a Shark Palace not far from here. I was caught by the sharks in the Shark Palace. They caught me and put me in a box to be transported to They wanted to give me to their king as food, because I was too small and couldn’t beat them. Thank you so much for saving me.”

At this time, I was there again. I thought: These sharks must have discovered us. They couldn’t swim fast with the big box, so they put down the big box and swam back to the fucking palace. There must be people in their palace who were caught by them and packed in boxes for transportation. Little whale to the palace. I said to the little whale: "Little whale, there must be other little whales captured like you in the Shark Palace. Go find the big whale, tell them about your situation, and ask them to come over and let's go together." Rescue your companions." The little whale nodded, and we sent the little whale out of the submarine, and the little whale swam out of sight.

After a while, the little whale swam back, followed by several big whales. Our submarine followed the whale to the Shark Palace. The sharks in the Shark Palace were so frightened that they ran for their lives when they saw so many whales coming. We rescued all the little ones caught by sharks. Ocean Adventure Essay

Ocean Adventure

I am a member of the marine environmental protection team. I protect the marine environment and conduct regular inspections of the marine ecological situation. It's my mission.

One morning, two team members and I boarded a patrol boat for maritime inspection as usual. When our boat sailed to the Yamba coastline of New South Wales, Australia, the seawater inspection system Suddenly the alarm sounded "beep beep." I quickly called up the computer surveillance video to view. I was shocked when I saw the screen. The usually blue sea disappeared, and layers of white foam piled up on the sea. , rising and falling with the waves, like a bubble bath in a huge bathtub. Turbid and foamy water rushed to the beach, hitting the vacationers on the shore, and people fled in panic. Something happened? What is that white thing? Why is this happening? Is there any danger? A series of questions appeared in my mind. I immediately reported the danger to my superiors, who instructed us to find out the situation. In order to find out the reason, we decided to personally take some foam as a sample and walked into the sea that turned into a "cappuccino". The team members and I were sweating, not knowing how harmful this unknown substance was to the human body. We put on blue diving suits, long plastic gloves and protective shells. We held two experimental glass bottles in our hands and dived into the sea. I found that the water under the sea was still dark blue, which was darker than usual. It is much turbid, and the white foam only floats on the surface of the sea water, without any smell. We quickly obtained the samples and then sent a signal to the headquarters to wait for the arrival of experts.

After careful examination by experts, it was found that this unknown white foam is caused by a large amount of fresh water flowing out of the river into the ocean, and it mixes with pollutants in the ocean (such as rotten plastic products, fish and Seaweed excrement, etc.) are formed by the interaction. In addition, the area is under the influence of strong air currents, forming huge waves on the sea. The currents cause the foam to quickly rotate upwards and gather on the shore. The larger the wave, the larger the foam. The more it is, the less harmful it will be to the human body.

After learning the experts’ conclusions, we were relieved, but we still had a faint worry in our hearts. The current ecological situation of the ocean is not optimistic. The reason is very simple, that is, those who are unconscious There are endless reports of destruction almost every day. The factory has polluted the river, and red tides are coming every year as scheduled. The ocean has become turbid and even filled with toxic substances.

This is one of the most serious and urgent issues in today's marine environmental protection work. I really hope that everyone will consciously defend the ocean and our blue land! An essay about ocean fairy tales

Children's musical fairy tale "The Sea Laughs"

Character setting: Boy A

Boy B

Girl C

Clownfish A

Clownfish mother

Other clownfish

A group of little sea babies living on the beach

Scene introduction: 1. By the sea

2. In the shallow sea

Script:

Act 1

The curtain rises, The breeze blows and the waves sound. Against the background of green coconut trees, brown rocks, soft beaches and blue ocean, a group of little sea babies come to the seaside to dance happily with cheerful music< /p>

Haiwa, Haiwa, with little bare feet;

When they came to the seaside, they scrambled to take the water under the sea.

The two little hands were like The boat paddles,

Colorful lifebuoys, red, yellow, blue, green;

Like water paintings...

[Music The sound gradually faded to silence, and the little sea babies froze in front of the background with various movements. Boy A comes on stage accompanied by the sound of waves and music. ]

Boy A: Hey, come quickly! There are many, many shells here.

[Boy B and Girl C come on stage]

Boy B: Look, how beautiful this shell is!

Boy A: Use the conch as a microphone, the clownfish will be able to hear it.

Boy B: Are you talking about the clown fish in "Finding Nemo"?

Boy A: Yes.

Girl C: I like clownfish the most.

Boy A: Maybe there are clown fishes in this sea.

Boy B: Hey! I have a lot of food in my bag. Let’s throw it into the sea and feed it to them.

A and C: Okay! OK!

[The three took out the food and threw it into the sea, including the packaging bags. ]

Boy B: Look, there is a black shadow over there.

Boy A: Where? Where?

Boy B: Over there, that’s my dad’s oil rig.

Boy A: Will the oil flow into the sea?

Boy B: Probably not?

Girl C: Guys, let’s go somewhere else to play!

A and B: Okay!

[Under the cover of lights and scenery, the little beach guards exit]

Act 2

[The sound of waves and music sounds, and a group of cute clowns The fish swam over under the leadership of its mother. ]

Clown fish song and dance performance:

There is a group of cute clown fish swimming back and forth in the water.

I saw aquatic plants waving their tails and saw The aquatic plants swung their tails and swam past with their heads held high...

Clownfish mother: Children! quick! Hurry up and don't fall behind.

Clownfish: Where are we going?

Mother Clownfish: We have to get out of here before the oil comes here.

[The clownfish swam quickly under the leadership of their mother]

The stage lights were all dark, and amid the sound of turbulent waves, a clownfish stuck with oil was chasing the light. Following her, he swam over from afar.

, Clownfish A: Mom! Wait for me, Mom! Wait for me, Mom! Mother!

[Clownfish A, who was in trouble, fainted amidst the shouting. ]

Act Three

[On another beach on the seaside, Girl C appears with the gentle sound of waves]

Girl C: Hey! Clownfish.

[The little girl discovered the clown fish washed up on the beach]

Come on! There really is a clownfish here!

[Three people gathered around Clown Rain and observed it carefully]

Boy B: It was all black and really dirty.

Boy A: It’s oil!

B and C: Let’s take a look at it.

[Clownfish A wakes up under the discussion and touch of the three people]

Clownfish: Ah! What are you going to do?

Girl C: Don’t be afraid, we are here to help you.

Clownfish A: I don’t believe it. You humans are always creating garbage, polluting the sea, and destroying our living environment. If it weren't for you, I wouldn't be separated from my mother. Woo,,,,,,,woo,,,,,,, I want my mother, I want my mother,,,,,,,

A, B, and C: Don’t cry, don’t cry.

Boy A: Let’s clean it up first.

B and C: Okay.

[Three people helped the clownfish get rid of the oil entanglement and released it back into the sea]

Clownfish: Thank you, goodbye!

Boy B: Clownfish, will we meet again?

Clownfish: As long as humans stop causing pollution and destroying the environment, and give us a blue sea, we will definitely come back.

A, B, and C: We remember. goodbye!

[The clown fish swims away under the watchful eyes of three people]

Boy A: Go tell your dad not to pour waste oil into the sea anymore.

Boy B: I will definitely tell him.

Girl C: Let’s work together to give clownfish a clean home.

A and B: Okay!

Act 4

[The music sounded again, and the little Haiwa babies came on stage to perform songs and dances,

Haiwa, Haiwa, with little bare feet,

p>

Carrying a small bamboo basket, we came to play at the beach.

Not catching small crabs or big prawns.

Comparing ourselves with picking up garbage, peels, and waste paper. Cans, plastic bags, nothing left... wooden sign. ]

Boy B: Let me tell you some good news. My dad and the others have cleaned up all the waste oil dumped into the sea.

Girl C: Great, look! The water turned blue again.

Boy A: Little sea babies, let us pick up the dirty things on the beach!

Everyone: OK!

[Clownfish appears amidst singing and dancing]

Children: Clownfish, come on! Come on!

Clownfish: We are back.

[The children and the clown fish danced happily to the sound of music, and finally all the actors finished with the "Care for the Environment" wooden sign as the centerpiece. ] Essay about Ocean Park

During the Spring Festival, I came to the Ocean Park in Chengdu and saw the wonderful underwater family.

As soon as I entered, I saw all kinds of strange fish in the green water. There is a huge turtle sleeping motionless in the water! You should have seen Finding Nemo! There is a red and white fish inside. I saw this fish with my own eyes. Its body is like a leaf, with many fans stuck on its body. Here, this fish looks very small. There are also man-eating crabs. They have smaller bodies and eight long and big legs. They crawl on the glass with their teeth and claws open and their mouths wide open, as if they are ready to eat you. I took one look and turned around and ran away in fright. . There are also small jellyfish. Their bodies are transparent, like an umbrella, with many tentacles underneath. Don't underestimate them, they will hurt you if you touch them because their tentacles are poisonous. After a while, a flat, long, black sea snake swam over. There was also a huge unknown fish that swam over. What was very strange was that there was a fish swimming right behind it. Later I learned that this fish specializes in eating fish excrement and is also called "ocean scavenger".

The seal show begins. The seal is very small, he is only four years old and his name is "Mike". "Mike" is very smart. He is all black and has some hair. His favorite thing is shooting basketball. The animal trainer uncle throws the ball into the air, and "Mike" can catch the ball nimbly, and hit every shot, even in the water. It is also a dancer, spinning in circles in the water, jumping in the air, and doing hip-hop dances. It can also clap, salute, bow, and be shy. Its naive appearance is very cute. Many children are vying to take photos with it. I can't help but run up to it. It puts its head on my shoulder and mouths softly. Sticking to my face and taking photos with me kindly. I was so excited.

How about it? Do you want to go? A thesis on ocean exploration

What is the significance and benefit of wandering?

In the five years since graduation, we have had many uncertainties and many possibilities. Tomb Twilight

A 200-word essay about the ocean

The Ocean

It was summer vacation, and my grandparents, parents, and I went to Qingdao to attend my uncle’s wedding. Uncle took us to see the sea. The sea is so big, boundless and turbulent. My mother took me to the beach to take pictures. I happily stood on the beach and took a picture with a smile on my face.

After we all finished taking pictures, my mother took me to pick up shells. When we were bending down, a wave came over and splashed our clothes. Ah, the sea water is so cold. Just when the waves receded, I suddenly saw many shells on the beach and picked some up. I am going to take the shells home and share them with my companions so that they can share my happiness. Sample science fiction essay about the ocean

The ocean is the mother of life on earth. It was she who created life and nurtured life.

When the astronauts who flew into space looked back at our earth, they found that the earth was a beautiful blue "water ball" in the vast universe.

For this reason, I became very interested in the vast ocean, so I read the book "Toward the Ocean" carefully. After reading "Toward the Ocean", I was surprised to find that the ocean is not only vast and unfathomable, but also extremely rich and a huge treasure house of resources. It is rich in gold, manganese, magnesium, tin, oil, natural gas, etc. Even the very limited uranium resources on land are as high as 4.5 billion tons in seawater, which is 4,500 times the reserves on land.

With the rapid increase in population and the continuous deterioration of the ecological environment, humans are facing the threat of food shortage, and people are turning their attention to the ocean. The ocean has inexhaustible biological resources. It is conceivable that more and more high-protein marine foods will appear in the future, which will greatly enrich our human food types. The ocean is also a natural transportation line. Although it contains various dangers, it is a smooth and unobstructed natural water highway that connects most countries and regions in the world. There are many benefits to opening up maritime routes. There is no need to acquire land or invest huge amounts of capital and labor. Maritime transportation can transport goods of various shapes, forms and sizes. More importantly, seawater has low friction, and a small amount of power can push huge ships forward. In this way, both additional fuel consumption and freight are saved. How can road and railway transportation be compared with sea transportation? (Suileng Education Letter About the Ocean?

Terrestrial materials, etc. Sometimes the turbidity current deposits developed on the continental slope can be extended into the abyssal plain seawater movement, seawater A general term for the chemical reactions of dissolved substances and the destruction and construction of coastal and seafloor rocks and terrain by marine organisms. Marine geological processes include sea erosion, transport and sedimentation. The main modes of movement of seawater are waves, tides, ocean currents and turbidity. Currents. These four types of seawater movements are important mechanical forces in marine geology. Due to the influence of seawater depth and seafloor topography, they constitute different hydrodynamic zones in the ocean. The shallower coastal zones and continental shelves are waves and tides. The main hydrodynamic zone is the hydrodynamic zone of ocean currents and turbidity currents in continental slopes and deep sea basins that are not affected by waves. These four mechanical forces can produce sea erosion, transport and sedimentation. Mechanical sea erosion is. The hydraulic impact (also called erosion) during seawater movement and the abrasion caused by the debris carried by the seawater have a destructive effect on the coast and the seabed. There are three ways of mechanical transport of seawater: ① Moving and rolling of coarse debris along the seabed. Sliding; ② Jumping, the coarser debris moves intermittently; ③ Suspension, the fine debris moves suspended in the water. These three methods vary depending on the strength of the hydrodynamic force and the size of the debris. These methods exist at the same time, sometimes with both shifting and saltation, or only suspension. When the mechanical power of sea water disappears, mechanical sedimentation occurs throughout the ocean, but the amount of sedimentation is the largest on the continental shelf and continental slope. The chemical effects of water are mainly the dissolution of soluble rocks (also called dissolution), and the chemical reactions of dissolved substances in seawater to form sediments on the seabed.

The organisms in the ocean are not only large in number but also numerous. There are many types of organisms that reproduce in seawater at different depths, but the seawater on the continental shelf is the most prosperous. The geological process of marine life mainly refers to the deposition of biological remains on the ocean floor.

Ocean. Among the three geological processes, sea erosion is the most significant and intense in coastal areas. The vast ocean basin is dominated by sedimentation. The ocean accounts for about 71% of the earth's surface area and is the largest sedimentation site on the earth, with a large amount of sediment. There are many types of ancient marine sediments in most areas of the modern continent. Studying the geological processes of the ocean, especially seabed sediments, is very important for understanding the development history of the earth and the development and utilization of seabed mineral resources. Geological waves (also called ocean waves) are caused by the regular wavy movement of sea water due to wind friction. The size of the waves is related to the strength of the wind, the duration of the wind, and the openness of the sea surface. The wavelength of the waves usually ranges from tens of centimeters to hundreds of centimeters. Meters, the wave height ranges from several centimeters to more than ten meters. The wave amplitude of water particles and the energy associated with it are greatly reduced as the water depth increases. They have been greatly reduced at half a wavelength. Therefore, they are usually The depth of half a wavelength is regarded as the lower limit of wave influence. In shallow water areas where the water depth is less than half a wavelength, the waves are deformed and even broken by the friction of the seabed, turning into rough waves, forming a complex near-shore current system, called a surge current. The impact force of whitewater currents can range from 9.80665×104 Pa to 29.41995×104 Pa. When the wave motion direction is perpendicular to the coast, inflow and outflow perpendicular to the coast are generated; when the wave motion direction is oblique to the coast, longshore currents parallel to the coast are generated due to the refraction of the waves. Waves and their various wave currents derived under different circumstances are important driving forces in shallow waters. Rip currents can directly damage the coast. When seawater seeps into rock cracks and compresses the air, the expansion force of the air intensifies the rock fractures. The debris carried by whitewater currents is also the tool that wears down the rock. The above-mentioned mechanical destructive effect of waves on coast and seabed rocks is called erosion. The movement of sand and gravel with the waves is the transporting effect of the waves. Wave erosion and transport often occur simultaneously. When the hydrodynamic force of waves decreases, the transported objects are deposited.

When waves erode rocky shores, sea erosion grooves are first formed near the water. The groove expanded and the upper part collapsed, forming a sea cliff. The coast recedes some distance. As the cliff recedes, the bottom of the sea erosion groove expands into a platform slightly tilted toward the sea, which is called a sea erosion platform.

When the sea level drops or the land rises, the sea erosion platform is exposed to the sea surface and presents a stepped area, which is called a sea erosion terrace. Under the action of waves, the slope of the sea erosion platform gradually becomes gentle. Once the energy of the waves cannot hit the coast and is dispersed and consumed in friction, the destructive power of the waves on the seabed rocks in the coastal zone tends to zero. The cross section of the coastal zone at this time is called the coastal balance section. Due to differences in the rocks and structures that make up the coast, erosion resistance is different, and erosion can also form sea caves, bridges, pillars and other landforms.

On gentle sandy beaches, waves transport and deposit sand and gravel mainly through inflow and outflow or coastal currents. The inflow moves toward land along the beach. After the inflow power is exhausted, the outflow retreats seaward along the slope under the action of gravity. The incoming current brings sand and gravel ashore, some of the coarser ones stay at the end point where the waves reach, and some of the finer ones move seaward with the outgoing current. The debris is continuously rounded and sorted while being transported back and forth between the inflow and outflow. When the seawater power disappears, they accumulate along the coast into gravel beaches, beaches and underwater sand banks. The debris carried along the coast is mainly sand, which moves longitudinally parallel to the coast. This longitudinal movement is most active at a water depth of about 4 meters. Its speed depends on many factors, usually increases as the waves intensify and the particle size of the transported particles decreases, and is fastest when the wave motion direction intersects the coast at an angle of 45°. If the coastal current encounters a bay, the flow speed is reduced, and sediment is deposited at the mouth of the bay, forming a sand spit and other landforms that are connected to the land at one end. The heightening and elongation of the sand spit can form a barrier in the coastal zone and form a lagoon on the inner side that is semi-isolated from the outer sea.

The geological effect of tides. The periodic rise and fall of seawater under the tidal force of the moon and the sun is called tides, and the horizontal movement of seawater that occurs simultaneously with the periodic rise and fall is called tidal currents. Tides change the scope of the surf zone, increasing or weakening sea erosion in coastal areas. The tidal current can affect a wide range on flat silt and silt coasts. The tide stirs up mud and sand, scouring the beach and carving out slender tidal ditches. In narrow straits and river mouths, tide heights surge and flow speeds increase. At low tide, the tide rushes down, digging up the sediment at the bottom of the canyon or estuary and carrying it into the sea.

The geological function of ocean currents The large-scale flow of seawater along a fixed path is called ocean currents or ocean currents. Surface ocean currents are mainly caused by wind and seawater density differences, and the thickness of the water layer generally does not exceed 100 meters; deep ocean currents are mainly related to the density of seawater. The speed of ocean currents generally does not exceed 0.5 to 1.5 meters/second, and becomes smaller as the water depth increases, thus forming a so-called contour current with different flow speeds at different water depths. The geological function of ocean currents is to slowly transport suspended materials such as silt and clay from shallow seas to deep seas for deposition. The difference in flow velocity and transport capacity of contour flow affects the particle size and transport method of the transported objects. Coupled with the different sedimentation rates of transported materials and the occurrence of turbulence, all these factors determine the distance transported by ocean currents.

The geological effects of turbidity currents Turbidity currents are high-density ocean currents that contain a large amount of suspended matter and flow downward in sheets along the seafloor slope mainly by their own weight. Turbidity currents have extremely powerful transporting power. Turbidity currents with a flow rate of 3 meters/second can transport rocks weighing up to 30 tons. A large amount of water-filled soft mud and loose debris accumulate on the continental slope. Induced by external factors such as storm waves, tidal currents, and submarine earthquakes, these soft mud are easy to liquefy and flow down the slope. Therefore, turbidity currents mostly originate from the outer edge of the continental shelf or the outer edge of large river mouths. When turbidity currents move along the continental slope toward the abyssal plain, they carve out narrow abyssal canyons with deep bottoms and steep walls. When the turbidity flows out of the canyon and reaches the abyssal plain, the speed drops suddenly, and a large amount of detrital material is accumulated, forming a long strip or tongue-shaped sediment body or fan-shaped land, called a turbidite fan. Turbidity current sediments are composed of typical terrestrial clasts, mixed with the remains of shallow marine organisms, and are sorted and layered.

Seabed sediments Marine sediments can be divided into three types: mechanical, chemical and biological. There are sediments on the entire ocean floor, but the sediments on the continental shelves are large in quantity and variety. The continental shelf is the most important sedimentary region in the ocean. Marine sediment materials are mainly detrital materials brought into the ocean by rivers, winds, etc., followed by organic matter components such as biological remains and microbial decomposition materials. In addition, the sediments also contain a small amount of volcanic ash that fell into the sea from volcanic eruptions, as well as meteorites and cosmic dust particles from space. Marine sediments are closely related to the marine depositional environment. Generally, marine sediments are divided into littoral zone (waters between the *** line and low tide line) sediments, shallow sea zone (low tide shallow to 200 meters deep waters) sediments, and semi-deep sea (waters between low tide and 200 meters deep) according to the marine sedimentary environment of different seawater depths. 200 ~ 2500 meters of water) sediments and deep sea (water depths greater than 2500 meters) sediments.

①Sediments in the coastal zone. It is mainly mechanical debris distributed on beaches and tidal flats, that is, sand, gravel, and debris of biological skeletons and shells of different particle sizes. In lakes in arid climates, chemical sediments such as rock salt, gypsum and potassium salts can be formed due to evaporation; in humid climates, lakes can become coastal swamps and accumulate large amounts of coal-forming materials.

②Shallow sea zone sediments. The shallow sea zone accounts for 25% of the ocean area, but the sediments in this area account for 90% of all ocean sediments. There are three types of shallow sea sediments: clastic sediments are mainly sandy. Since waves weaken with increasing sea depth, the particle size of clastic sediments generally decreases from shallow water to deep water.

However, due to the influence of tidal currents, ocean currents, as well as the undulations of the seafloor and the erosion intensity of the continent, the grain size of sediments in modern shallow sea zones is not always coarse near the coast and fine far away. Biological sediments are mainly sand and mud formed from biological remains, and their main components are calcium carbonate. In warm oceans in the tropics and subtropics, there are also accumulations of biological reefs composed mainly of coral skeletons and supplemented by the skeletons and shells of other organisms, called coral reefs. Chemical sediments are mainly colloids of oxides and hydroxides of iron, manganese, aluminum, and silicon from the continent. When they meet seawater electrolytes, they flocculate into oolitic or bean-shaped sediments.

③ Semi-deep sea sediments. Usually dominated by terrestrial mud, there may be a small amount of chemical sediments and biological sediments. In areas where turbidity currents and submarine landslides develop, coarse clasts from shallow seas can be found, and glacial clasts and volcanic clasts can be seen in regional areas. The most widely distributed sediments on the continental slope are blue ooze formed in a reducing environment; red ooze distributed outside large river mouths on tropical and subtropical coasts; and green ooze developed in the border zone between the continental shelf and the continental slope.

④Deep sea sediments. It is usually dominated by plankton remains, with very little terrestrial material. The deposition rate is extremely slow. Biogenic sediments in deep sea areas are usually various biological oozes; siliceous ooze including diatom ooze and radiolarian ooze; including foraminifera (also known as coccidia) ooze, pteropod ooze and Calcareous ooze of cobblestone ooze.

In addition, there are deep-sea brown clay and a small amount of high school English composition about the ocean

Marine environment that includes water, sea water dissolves the material and suspended solids, sediments and marine ani *** s, including plex systems. The Rich marine biological resources, mineral resources, chemical resources and power resources are an indispensable resource treasure house of human, with human survival and development of very close relationship.

The main objective of the current marine conservation is to protect marine biological resources, so as not to failure, for the sustainable use of human beings. Particular priority to protect the valuable and endangered marine life. Aording to the United Nations to an investigation, due to overfishing, aidental killing of non-target to allow hunting of marine, coastal beaches of the construction, mangrove deforestation, pollution of the marine environment in general, at least 25 the world's most valuable fishery resources depleted, whales, sea turtles, manatees and many other marine animals are facing the danger of extinction . Expected that with the expansion of marine development, marine resources are likely to cause more damage.

First, the task of marine conservation of marine biological resources to s the excessive use of, and secondly to protect the habitat of marine life or habitat, in particular, their migration, spawning, feeding, avoiding predators coast, beaches, estuaries, coral reefs, to prevent the heavy metals, pesticides, oil, anic produce and easy to eutrophication and other pollution of the marine nutrients. Maintain the regeneration ability of marine biological resources and the natural purification capacity of water, preservation of the marine ecological balance and ensure the sustainable human development and utilization of ocean. Essay about the ocean for sixth grade 400 words

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