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After the crying you will become stronger . That can change your state!!!
On Earth, materials exist in one of three main states of matter: solid, liquid or gas. Materials can change between these states. When a state change occurs, a substance’s properties will also change. However, if the state change is reversed the substance will recover the properties it had to begin with. Matter can transition between the three states when heated or cooled. But why is heat key in all this? When a material is heated, it absorbs heat energy. This additional energy can cause attractive forces between molecules to break. This leads to rearrangements of the parles because the attractive forces no longer hold them together as tightly. The same happens when a liquid is heated. The attractive forces between the molecules break, leading them to become more widely dispersed and a gas to form.
So, there we have the changes of state. Just remember that the mass stays the same, whatever the state!
~ Hok totos~
P/s : Nếu xơ xài quá hì cho mình xin lỗi nha
It is water. It can exist in three states: solid, liquid and gaseous. It has a melting point and a freezing temperature of zero degrees celsius. It is an essential and extremely important substance in life. We use it to drink, cook, ... at the average temperature as it currently exists in liquid form
# study well <3
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bài đây mk suy nghĩ rùi tự làm để các bạn tham khảo chứ ko có ý gì đâu , nên các bạn đừng báo cáo vi phạm mk nhé
volunteering is an exciting and humane job . because we can make meet many new friend have the same interests and share with every one . we can donate book , clothes , or open love classes for street children . we will engage is non- profit community services in the city .
dịch nghĩa : công việc tình nguyện là một công việc thú vị và đầy tính nhân văn . bởi vì chúng ta có thể gặp được nhiều bạn mới có cùng chung sở thích và chia sẻ nó với mọi người . chúng ta có thể quyên góp sánh vở , quần áo , hoặc mở các lớp học tình thương cho trẻ em đường phố . chúng ta sẽ tham gia vào các tổ chức dịch vụ cộng đồng phi lợi nhuận trong thành phố .
21.They have to separate the rice from the husk.
-> The rice has to separated from the husk by them
22.He shouldn’t do that silly thing.
-> That silly thing shouldn't be done by him
23.The boy operates that tape-recorder.
-> That tape-recorder is operated by the boy
24.They gave us a post card.
-> A post card is given for us by them
25.The student cleaned the room every day.
-> The room was cleaned by the student every day
26.I had lost some of my books.
-> Some of my book had been lost by me
27.We believe these boys to become better.
-> These boy are believed to become better
28.The scientists found the problem.
-> The problem was found by the scientists
29.The cat pulls the pan into the sink.
-> The pan is pulled into the sink by the cat
30.He gives her a novel about a love story.
-> A novel about a love story is given her by him
21.They have to separate the rice from the husk.
-> The rice has to separated from the husk by them
22.He shouldn’t do that silly thing.
-> That silly thing shouldn't be done by him
23.The boy operates that tape-recorder.
-> That tape-recorder is operated by the boy
24.They gave us a post card.
-> A post card is given for us by them
25.The student cleaned the room every day.
-> The room was cleaned by the student every day
26.I had lost some of my books.
-> Some of my book had been lost by me
27.We believe these boys to become better.
-> These boy are believed to become better
28.The scientists found the problem.
-> The problem was found by the scientists
29.The cat pulls the pan into the sink.
-> The pan is pulled into the sink by the cat
30.He gives her a novel about a love story.
-> A novel about a love story is given her by him
Tham Khảo
Festivals are spices of life. They add charm and colour to our daily life. They break the monotony of life. That is why, people eagerly wait for festivals and spend so much of money and time in celebrating various festivals. India is a land of various religions, cultures and races, each having a variety of festivals of their own. Holi, Dussehra, Diwali, Maha Shivaratri, Easter, Christmas, Id-ul-Fitr, Muharram, etc. are the major festivals of India. Among these Christmas is one of the most joyful festivals of the world.
Generally, Christmas is celebrated on December 25th all over the world. It is a celebration of the remembrance of the birth of Jesus Christ who is supposed to be the saviour and redeemer of the world.
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Christians believe that Jesus Christ was born in a manger at Bethlehem in Israel about two thousand years ago. That event is remembered on this day. Christians make Christmas cribs in resemblance of Bethlehem manger and adorn it with decorated Christmas trees, lighted lamps and stars.
A significant aspect of Christmas is the greetings and wishes which are sent to friends, relatives and well-wishers. Christmas cards have become so universal that today men of all religion and caste send them to their friends and relatives. No other festival can claim such a trend. Thus, it is a festival for all the people of the world. On this day people exchange greetings and share meals.
refer
For Vietnamese, Lunar New year is the most important festival of a year because it is the beginning of a year. If we have a good beginning throughout first three days of year, we will have much luck during that year. Therefore, the activity of welcoming Tet festival is celebrated carefully in order to avoid unfortunate mistakes. And according to each area of the country, Vietnamese have different ways. Although I am a Vietnamese, I don’t know how families in other parts of my country welcome Tet holiday. My family, an age –old Southern family, usually celebrates Tet as this following way. Tet holiday begins on twenty-ninth of December. We start on decorating our house and preparing food for tet holiday. My father and I are responsible for tidying up our house. Quickly, the house becomes splendid with a very beautiful apricot blossom full of sweet-smelling blooming flowers in the middle of living room. On the branches, we also put some lovely greeting cards which make the tree more beautiful. When we finish our duties, my mother and sister also finish cooking. The kitchen is now full of delicious dishes whose smell float into the air. We usually keep many kinds of food in our kitchen in New Year festival. At lunch, we prepare a big feast to donate the ancestors. At the New Year‘s Eve, our family usually gather together. We watch television or play some traditional games. Until the clock strikes twelve tones to signal the moment of a new year, we donate the ancestors again. Then, my sister and I say “happy new year” to my parents and get lucky money from them. Next, we have a big meal to welcome New Year. Although all of us say nothing about our senses at that time, I know every body is cheerful and hopes for a lucky year. In three Tet days, we are usually well-dress to visit our relatives, teachers. We bring offerings to sacrifice ancestral altars, congratulate the olds on advancing in years and say New Year’s greetings to the others. Although we all are quite tired in these days, we are really joyful. Thanks to Tet holiday, we become closer and closer. Tet festival is very significant for Vietnamese, and these are all of my Tet holiday. I hope every year we have three great Tet days so that we have an extremely smooth year.
Dear Minh,I’m in San Francisco now. We arrived here yesterday. Before that, we spent ( 1) 10 days in New York. It was wonderful. Liz and I visited a lot (2) of interesting places including the Empire State Building. We climbed (3) to the top- it was very high, and we were (4) both a bit frightened. We caught a boat along ( 5) the rive to see the Statue of Liberty. We walked through Greenwich Village and watched many ( 6) artists work. The paintings weren’t expensive so I bought ( 7) one. We also went to the theatre and saw ( 8) a musical. I enjoy it very much. The weather was OK – a bit wet sometimes. But now in San Francisco, it’s hot and sunny.
refer
1) A. celebrating B. celebration C. celebrate D. celebrated
2) A. where B. when C. which D. in which
3) A. have B. buy C. help D. take
4) A. Besides B. Both C. Either D. Nor
Life in the city has long been a hankering for many people because of the benefits it brings. First, it provides us with many employment opportunities to increase income, feed ourselves and our families. There are a lot of kind of jobs from teachers, maketing, designers, ... which need a great human resource. Therefore, people feel easy to find a suitable job. In addition, the quality of life in cities is much better than in rural areas. The infrastructure is modern and there are full of services for the people. More and more entertainment centers, commercial centers, hospitals and schools are built. It means that people's health is better and their needs for entertainment are better. However, besides these positive aspects, the city still has some drawbacks. First of all, because of many factories, transportation and large population, the air here is very polluted, the road is full of smoke and dust, as a result it makes a bad effect on people's health. In addition, due to immigration, so many people rushed to the city so the cost of services and equipment is quite expensive. This is also the cause of a number of social evils such as theft, addiction, gambling, ... Today there are many large cities grow up, more and more people migrate in the city, but besides the positive aspects, the city still has limitations that no one wishes. Everyone should take consideration before deciding where to live.