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Thw Winter Holiday Homework

EICHER SCHOOL HOLIDAY HOMEWORK CLASS – VIII ENGLISH Q1Read the newspaper article and answer the questions that follow: Ban is the correct move 10 Feb 2009, Vikram Sinha The move by the central government to finally introduce an amendment to the Motor Vehicles Act, 1988, prohibiting the use of cell phones while driving, has materialized. It also ensures that there are no loopholes left in the law by including hands-free sets in the ban . Doubtless, there will be those who claim that such devices are safe since they free both hands for driving. It is a false claim.
There is an assumption that it is the physical hindrance caused by conversing on the phone while driving that is the main safety hazard. Rather, the issue is the mental distraction of the driver. The US is pushing all its states to implement a similar ban. For evidence, it cites several studies, such as one by the university of Utah, which prove that using hands-free devices is as dangerous as speaking on cell phone without them. Another study cited by the report establishes why this so. It states that conversing with a fellow passenger is not dangerous and many instead lead to greater safety.
The reason for this is simple enough . a co-passenger is likely to keep an eye on the road, adjust or stop danger. A person at the other end of a phone connection cannot do this. The conservation will remain unchanged, demanding the driver’s attention and lessening his focus on the road at the moment when he might need it the most. The introduction of such a specific law in India is long overdue. And now that one is finally being introduced, the Ministry of Road Transport and highways is taking the correct step by being thorough. [ source: TOI 10 Feb,2009] 2. 1 ‘It is a false claim’ ( para 1). What is the false claim?

The claim that A. the amendment is finally being introduced B. co-drivers can help a driver avoid accidents C. all cell phones can create distractions for drivers D. hand- free phones can be safely used when driving 2. 2. What is the usual assumption of people? A. Conversing on a cellphone causes maximum accidents. B. Using a phone while driving does not cause any difficulty C. Mental distractions are more harmful than physical distractions. D. These bans should only be implemented in US. and 2. 3 According to the passage, in what way is the driver talking to a co-passenger less risky as compared to talking on phone?
A. Talking to a co-passenger increases the concentration of the driver. B. Talking to a co-passenger keeps a driver awake in long drives. C. Co- passengers will stop the conversation and warn the driver of danger. D. Co-passengers can answer the phone calls 2. 4 ‘The US is pushing all its states to implement a similar ban’ Here ‘similar ban’ refers to A. Use of cell phones while driving B. Talking to co- passengers while driving C. Use of both cell-phones and hands- free devices while driving D. None of the above 2. 5. Choose the word from the passage that means the same as “ strictly not allowed” A. rohibited B. implemented C. hindrance D. loopholes Q2 Prepare a book review on the class library / school library book you have read based on the following points: 1) Name of the book 2) About the author 3) Judgement 4) Summary G. SC Bio Q1. State the importance of water. Q2. Why is the frequency of irrigation higher in summer? Q3. What is irrigation? Describe two methods of irrigation which conserve water.
Q4. Write a paragraph in your own words on each of the following a) Preparation of soil. b) Sowing Q5. Why weeds should be removed before they produce flowers and seeds? Q6. Why is weeding necessary? Chem Q1. State the different ways to stop fire. Q2. Why a gas burner does has holes surrounding it (on outside)? Q3. Cooking utensils acquire the coating of a black powdery substance if kept on yellow flame of the burner. Why? Q4. Draw a well labeled diagram to show the different regions of flame. Phy Q1. What is the purpose of L. H. C? (Large Hadron Collider) Q2. How are charges developed here? Q3.
Write two areas where problems are coming LHC? Q4. What discovery it will make once it becomes successful? Q5. Write a short note on LHC. [READ CHAPTER NATURAL PHENOMENA TO UNDERSTAND THE CONCEPT] S. ST ? Collect information on Durban ,South Africa Earth Summit held this year. ? The information has to be pasted in the class note books. ? Students will be graded on the work submitted. S. kt Do pg . 77 to 81 in Assignment. Hindi (Do page num 117 and 135 from assignment) MATHS 1. Express the following as the product of two factors:- i) 18×2 + 24x + 8 ii) 25t2 + 10t + 1 iii) 9u2 – 6u + 1 2. Evaluate (48×2 + 30x + 3) ? 16x + 3) 3. Divide :- i) a6 + 2a3b3 – 3b6 by a3 – b3 ii) 4×4 + 1 by 2×2 + 2x + 1 4. Check whether x -2 is a factor of x3 – 8 5. A certain sum of simple interest becomes double in 20 years. In how many years will it become four times? 6. If the C. P of 8 articles is equal to S. P of 6 articles, find the gain %. 7. What sum of money will amount to 45582. 25 at 6[pic] p. a in 2 years, interest being compounded annually? 8. A cubical container is 15 cm long. The volume of container is 5. 4 cm3. Find the area of its end. 9. Due to rainfall, a square terrace of length 9m is filled with water up to a height of 6 cm.
How many litres of water has accumulated on the terrace? 10. Find the value of x, if i) 2x = (6)2 – (4)2 ii) 6x = (23)2 – (17)2 11. If the area of rectangular field is 21 x2 – 7x and one of its sides is 7 x,what is its other side ? 12. Find the greatest no. of seven digits which is perfect square. What is the square root of this number? 13. A decimal fraction is multiplied by itself. If the product is 251953. 8025, find the fraction. 14. Find the volume of a cube whose total surface is 486 cm2 ? 15. Multiply – 3x2y by (7x3y – 5xy2). Verify the product by taking x = -2, y = -1.

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holidays

Us Holiday

Learn more about holidays celebrated by many Americans, such as New Year’s Day, Independence Day, and Thanksgiving. Americans celebrate a variety of federal holidays and other national observances throughout the year. American holidays can be secular, religious, international, or uniquely American. With the wide variety of federal holidays, and the many levels of American government, it can be confusing to determine what public and private facilities are open on or around a given federal holiday. You can usually find such information in the daily newspaper or by calling the office you wish to visit.
The following are American federal holidays and other common national observances. Federal holidays are indicated as such. New Year’s Day is January 1. The celebration of this federal holiday begins the night before, when Americans gather to wish each other a happy and prosperous coming year. Many Americans make New Year’s resolutions. Martin Luther King Day is a federal holiday celebrated on the third Monday in January. The Reverend Martin Luther King, Jr. was an African-American clergyman who is recognized for his tireless efforts to win civil rights for all people through nonviolent means.
Groundhog Day is February 2, and has been celebrated since 1887. On Groundhog Day, crowds gather in Punxsutawney, Pennsylvania, to see if groundhog Punxsutawney Phil sees his shadow after emerging from his burrow, thus predicting six more weeks of winter weather. Valentine’s Day is celebrated on February 14. The day was named after an early Christian martyr, and on Valentine’s Day, Americans give presents like candy or flowers to the ones they love. The first mass-produced valentine cards were sold in the 1840s.

Washington’s Birthday is a federal holiday observed the third Monday of February to honor George Washington, the first President of the United States. This date is commonly called Presidents’ Day and many groups honor the legacy of past presidents on this date. Easter falls on a spring Sunday that varies from year to year. Easter is a Christian holiday celebrating the resurrection of Jesus Christ. For Christians, Easter is a day of religious services and the gathering of family. Many Americans follow old traditions of coloring hard-boiled eggs and giving children baskets of candy.
Earth Day is observed on April 22. First celebrated in 1970 in the United States, it inspired national legislation such as the Clean Air and Clean Water Acts. Earth Day is designed to promote ecology, encourage respect for life on earth, and highlight concern over pollution of the soil, air, and water. National Arbor Day was proclaimed as the last Friday in April by President Richard Nixon in 1970. A number of state Arbor Days are observed at other times to coincide with the best tree planting weather, from January and February in the south to May in the far north.
The observance began in 1872, when Nebraska settlers and homesteaders were urged to plant trees on the largely treeless plains. Mother’s Day celebrates mothers every second Sunday of May. President Woodrow Wilson, who issued a proclamation in 1914, asked Americans to give a public expression of reverence to mothers on this day. Carnations have come to represent Mother’s Day, following President William McKinley’s habit of always wearing a white carnation, his mother’s favorite flower. Memorial Day is a federal holiday observed the last Monday of May.
It originally honored the people killed in the American Civil War, but has become a day on which the American dead of all wars, and the dead generally, are remembered in special programs held in cemeteries, churches, and other public meeting places. The flying of the American flag is widespread. Flag Day, celebrated June 14, has been a presidentially proclaimed observance since 1916. Although Flag Day is not a federal holiday, Americans are encouraged to display the flag outside their homes and businesses on this day to honor the history and heritage the American flag represents.
Father’s Day celebrates fathers every third Sunday of June. Father’s Day began in 1909 in Spokane, Washington, when a daughter requested a special day to honor her father, a Civil War veteran who raised his children after his wife died. The first presidential proclamation honoring fathers was issued in 1966 by President Lyndon Johnson. Independence Day is July 4. This federal holiday honors the nation’s birthday – the adoption of the Declaration of Independence on July 4, 1776. It is a day of picnics and patriotic parades, a night of concerts and fireworks.
The flying of the American flag is widespread. Labor Day is the first Monday of September. This federal holiday honors the nation’s working people, typically with parades. For most Americans it marks the end of the summer vacation season and the start of the school year. Columbus Day is a federal holiday celebrated on the second Monday in October. The day commemorates October 12, 1492, when Italian navigator Christopher Columbus landed in the New World. The holiday was first proclaimed in 1937 by President Franklin D. Roosevelt.
Halloween is celebrated on October 31. On Halloween, American children dress up in funny or scary costumes and go “trick or treating” by knocking on doors in their neighborhood. The neighbors are expected to respond by giving them small gifts of candy or money. Veterans Day is celebrated on November 11. Originally called Armistice Day, this federal holiday was established to honor Americans who had served in World War I, but it now honors veterans of all wars in which the U. S. has fought. Veterans’ organizations hold parades, and the president places a reath on the Tomb of the Unknowns at Arlington National Cemetery in Virginia. Thanksgiving Day is a federal holiday celebrated on the fourth Thursday in November. In the fall of 1621, the Pilgrims held a three-day feast to celebrate a bountiful harvest. Many regard this event as the nation’s first Thanksgiving. The Thanksgiving feast became a national tradition and almost always includes some of the foods served at the first feast: roast turkey, cranberry sauce, potatoes, and pumpkin pie. Pearl Harbor Remembrance Day is December 7.
In 1994, Congress designated this national observance to honor the more than 2,400 military service personnel who died on this date in 1941, during the surprise attack on Pearl Harbor, Hawaii, by Japanese forces. The attack on Pearl Harbor caused the United States to enter World War II. Christmas Day is a federal holiday celebrated on December 25. Christmas is a Christian holiday marking the birth of the Christ Child. Decorating houses and yards with lights, putting up Christmas trees, giving gifts, and sending greeting cards have become holiday traditions even for many non-Christian Americans.

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holidays

ear 10 Additional Science Holiday Homework

1) What are the two common isotopes of chlorine made up of?
There are two types of chlorine atom- one has 17 protons and 18 neutrons(and so has a relative atomic mass of 35) and the other has 17 protons and 20 neutrons(and so has a relative atomic mass of 37).
2) Why was the Haber process such an important invention?

Fritz Haber was a German chemist, who received the Nobel Prize in Chemistry in 1918 for his development of synthetic ammonia, important for fertilizers and explosives.
The Haber process is the reaction of nitrogen and hydrogen, over an iron catalyst to produce ammonia.
The Haber process is important sue to the fact ammonia is difficult to produce, on an industrial scale.
The Haber process now produces 100 million tonnes of nitrogen fertilizer each year.
1% of the world’s annual energy supply is consumed in the Haber process and that fertilizer is responsible for sustaining 40% of the Earth’s population.
3) Find 3 exothermic and 3 endothermic reactions not mentioned in the textbook?
An exothermic reaction is one that releases heat.
Examples of exothermic reactions:
* Adding concentrated acid to water.
* Nuclear fission.
* Condensation of rain from water vapour.
The word endothermic describes a process or reaction that absorbs energy in the form of heat.
Examples of endothermic reactions:
* Evaporation of water.
* Melting solid salts.
* Mixing water and ammonium nitrate.
4) Find 2 uses for a thermistor and 2 uses for a LDR. How does the change in their resistance make them suitable for these jobs?
Thermistors can be used as replacements for fuses and as heating elements in small temperature controlled ovens. LDRs are used in street lights and clock radios. Change in resistance makes them suitable for their jobs because they change as the resistance changes- they depend on temperature and light.
5) Find the mains frequency and voltage of electricity in the USA, England and France. What does this mean about the safety of them and how possible it is to use an English hairdryer in these countries?
France= 230 and 50, England = 240 and 50 and the USA= 120 and 60.
This means that it is not safe to use appliances above a certain voltage in that country, and an adaptor must be used if an English hairdryer is to be plugged in.
6) Find out how the lights, sockets and cooker are wired in a house and why they are like this?
The lights are in a radical circuit with junction boxes to aid the switching process. Sockets are either in a radical circuit or a ring. Cookers are on a separate fuse because they draw a larger current.
7) How is a lightning conductor like the earth wire in a plug?
It is the same because like a lightning conductor, the earth wire will conduct any electricity which it comes into contact with to the ground.
8) Who was Geiger?
Geiger was the man who co-invented the Geiger counter which measures the ionising radiation and discovered the atomic nucleus.
9) What evidence was there for the plum pudding model of the atom?
Experiments on the beams of particles in a tube that were attracted to a positive charge showed that they must be negatively charged themselves. Other experiments showed that it would take about 2000 electrons to weigh the same as the lightest atom, hydrogen.
The tiny negatively charged particles were called electrons.
10) What do the hormones insulin and glucagons do?
Insulin converts glucose to glycogen which stops the glucose level form becoming too high, whilst glucagon converts glycogen to glucose to keep your blood sugar levels stable.
11) Find one controversy that is going on at the moment over stem cells. What do you think?
Using embryonic stem cells as a clinical therapy for Parkinson’s disease.
I think this is a good idea even though I do not agree with many other stuff that stem cells could possibly be used for as I thin using stem cells to treat Parkinson’s disease and also Alzheimer’s will benefit countless amount of people.
12) Describe the famous experiment Gregor Mendel did?
Gregor Mendel was a monk who did an experiment on cross-breeding different types of peas to find out that offspring inherited characteristics in clear and predictable patterns. This helped develop the idea of genes and genetic material.