CLASS : VIII. Dear Parent,

Transcription

1 CLASS : VIII Dear Parent, Summer Vacations are synonymous with fun, frolic, getting up late in the morning, playing for longer hours with friends, going for picnics, exploring new places and watching fun filled shows on television. But, there is a lot more your ward can do to make vacations more interesting, meaningful and full of fun. Here is a Summer vacation Activity Treasure Box. It will surely mould your ward for a better and successful forthcoming year. Few guidelines to make your ward s long summer break fruitful. 1. Knowledge is Power. Therefore encourage your child to cultivate the reading habit because it not only enhances the knowledge acquired but also develops the vocabulary, language skills and improves spellings. And also read to your child because it builds reading skills and increases his/her attention span. 2. A healthy mind lives in a healthy body. Encourage your child to go out and play because sports instill discipline, generate sporting spirits, channelize energies constructively. 3. Communication skills play a pivotal role in grooming the overall personality of the children. Converse with your child preferably in English to help him / her get comfortable

2 with the language. Encourage your child to read children s magazines like Magic Pot, Chandamama, Dimdima etc. 4. Spend quality time with your child engaging him / her in activities based on enhancing his / her powers of observation and imagination. 5. Encourage your child to play board games e.g. Chess, Ludo, Carrom etc. 6. Sensitize your child about the rich culture and heritage by watching different informative channels like The National Geographic, Animal Planet etc. 7. Encourage your child to do the activities himself / herself and appoint a specific time to do homework everyday. ENGLISH 1. Read any one of the books of Roald Dahl Matilda or Sudha Murti s The Day I Stopped Drinking Milk and write a book review. (Make a colourful file) i) Name of the book ii) Author iii) Publisher iv) Important characters v) The character you liked the most vi) A brief review vii) Meaning and list of difficult words, phrases & idioms you came across. 2. Write a newspaper report about the earthquake that devastated Nepal on 25 th April, 2015(Coloured A3 size sheet) 3. Write a speech of about words according to your roll numbers. Learn any one out of the 6 given in your syllabus. ROLL NO. TOPIC 1-8 Tradition against modernity 9-16 Simple living & high thinking Success comes to those who will & dare Media- Impact on teenagers Good deeds reflect good character 4. Kidwiz (English) Do & learn page 1to 10

3 CHEMISTRY A) Montreal Protocol on ozone layer is known as the most successful international agreement till date. Do a research on success story of this agreement from the internet.prepare an A-3 size paper presentation for the same. (Roll No.-1 14) B) Replacement of CFC by other substances is very costly and poor nations cannot afford it. Make a power point presentation on this subject. (Roll No ) C) Make a poster to display the activities that we can do to protect the ozone layer (Roll No )

4 D) Do the worksheet on the topic ozone layer and its depletion (student can download the worksheet from his/her blog). Class VIII WORKSHEET Topic Ozone layer and its depletion Subject: Science Read the following paragraph on depletion of ozone layer and answer the questions based on it. The ozone layer is a layer of the earth s atmosphere in which most of the atmosphere s ozone is concentrated. It protects the earth from harmful radiations like high energy UV radiations from passing through it. Protective role of the Ozone layer in the upper atmosphere is so vital that scientists believe life on earth probably would not have evolved and could not exist today without it. In 1970, scientists discovered that chemicals known as chlorofluorocarbons can reach the stratosphere and destroy the ozone gas. Many common products and appliances such as aerosol spray, air conditioners and refrigerators release CFCs into the atmosphere when manufactured or used. In 1985 scientists discovered that every year, the ozone layer over Antarctica becomes drastically thinner during the southern hemisphere s spring, which forms an ozone hole over Antarctica. The hole occurs over Antarctica because the extreme cold conditioned help the very high clouds characteristics of that area to form tiny ice particles. When the polar winds blow, the chemicals in the air are trapped in the ozone layer. When the Antarctica spring sun rises in August or September and hits the trapped chemicals, a chain reaction begins in which chemicals such as chlorine and bromine react with ozone and destroy it quickly. When the ozone is depleted, more harmful UV Rays can penetrate the ozone layer and reach the earth surface. This can cause many health problems in humans. 1. How does the ozone layer of atmosphere protects lives on earth? 2. Why is the ozone layer getting depleted? 3. What do you mean by the ozone hole? 4. Can the ozone hole recover? 5. What are the harmful effects of depletion of ozone layer? PHYSICS 1. Make a collage on the given topic: a) Effect of force on an object (Roll no. 1 to 21) b) Application of pressure in daily life (Roll no. 22 to 43) 2. Make a project on the topic -Pressure a) Pressure and its unit b) Types of pressure - solid, liquid, air c) Solid pressure and its applications in daily life

5 d) Liquid pressure, its properties and its applications e) Air pressure, its properties and its applications 3. Do the given assignment in your physics notebook. 1 An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information, fill up the gaps in the following statements: a) To stretch the bow, the archer applies a force that cause a change in its b) The force applied by the archer to stretch the bow is an example of c) The type of force responsible for change in state of motion of the arrow is an example of force. d) While the arrow moves towards its target, the forces acting on it are due to and of air. 2 When is the pressure on ground more - when a man is lying or when a man us standing? Explain 3 You can fill a bucket from downstairs tap quicker than from an upstairs tap. Why? 4 A rocket has been fired upwards to launch a satellite in the orbit. Name the two forces acting on the rocket immediately after leaving the launching pad? 5 There is no atmosphere around many planets, then why there is atmosphere around earth? 6 Why do people with high blood pressure sweat a lot? 7 There is a famous saying in Hindi that a sword cannot replace a needle. Give reason for the saying in the light of physics? 8 Rahul was impressed by the miracle performed by a person in a fair in their village when he lied down on a bed of nails. The nails did not hurt him. Rahul narrated the whole incident to his friend Ramesh. Ramesh explained to him that there is no magic of miracle here. He can also do that trick. a) Why did Ramesh say that there is no miracle in this trick? Why the person did not hurt himself? b) Which quality is shown by Ramesh here? BIOLOGY 3D Model of Cell and Cell Organelles Make 3D models of Cell & Cell organelles using eco-friendly material like paper pulp, clay etc. PROCEDURE Take some waste paper and cut them into small bits. Soak these bits of paper in water for 5-10 days. Make sure that you change the water every day after the paper has become soft

6 and pulpy take out the water and squeeze the pulp to drain out extra water. Now your pulp is ready to be used. Mash it to make it smooth and give them shapes of the required organelle. Keep them to dry in sunlight. After it gets dried up thoroughly paint them accordingly. ROLL NO. CELL MODELS 1-5 Generalized Cell 6-10 Chloroplasts Golgi bodies Nucleus Mitochondria Endoplasmic reticulum Lysosomes GEOGRAPHY NOTE: Do the work in Geography notebook Q1. What is the condition for a substance to be called a resource? Q2. Mention two disadvantages of over-irrigation. Q3. Why are human beings considered as a resource? Q4. Why are countries like USA and Japan termed as developed countries? Q5. Why are African nation s less-developed inspite of being rich in resources? Q6. Which biotic resources need a long time to be removed? Why countries like USA and UK make optimum use of resources as compared to India? What is the reason behind it? Q7. How has rapid population growth affected natural resources? Q8. Which factors are essential for long-term sustainability of natural resources? Q9. The quality and quantity of people of a country determine its human resource? Explain. Q10. How are human beings an asset? PROJECT WORK Q1- Draw the outline of the physical maps of different continents individually on A-4 sized sheets. You can use one A-4 sheet to draw two continents outline. Use a pencil. Don t trace. Also label the continents. Q2- Make a collage on the following points: 1. Importance of soil 2. Factors responsible for soil erosion 3. Methods of soil conservation

7 Find out the information from books and internet. Do it on half pastel sheet. HISTORY Read the lesson Establishment of Company rule in India and do the following questions: 1. Who were called factors and what were factories? 2. Name the items which were in high demand in Europe? 3. What is the meaning of Imperial? 4. When did the age of imperialism begin? 5. How could a trading company become imperial? 6. Explain the features of Dual Government in Bengal. When and by whom was it established? 7. On an A4 size sheet make this table and fill in the details. Use Physical map of India to depict the areas of War. WARS First Carnatic War Second Carnatic War Third Carnatic War Battle of Plassey Battle of Buxar Anglo Mysore War Anglo Maratha War Anglo Sikh War PERIOD OF WAR WARRINGS (BETWEEN WHOM) VICTORIOUS (RESULT) MATHS 1. Quotes- Write mathematical quotes neatly and legibly on A-3 sheet Make it more impressive by using background designs and colors. There is Geometry in the humming of the strings, There is music in the spacing of Spheres. 2. Poster- Read and know about Tangrams. Cut & paste tangrams, paint geometrical designs on a hardboard sheet, pastel sheet with size 2ft x 4 ft,having 2 inch brown border.

8 3. Maths perspire- Compile minimum 5 A-3 sheets with pictures, cut outs funny jokes, poems, quotes etc or value based pictures. Use stencil to write maths oriented article poems, mind teasers, puzzles etc. Visit page Math-O-Fun for examples. 4. Model-Make any one 3 D model of a cube, dice. pyramid(15x15x15cms),hexagon, and any other polygon of your choice OR Make any one model of symmetrical monument 5.My Summer Scrap Book.- Cut & paste pictures of advertisements, bills, sale captions, banners.make a write up about Profit, Loss, Discount and acquaint with the topic VAT. "Worked Hard, Saved Lots of Positivity & Earned 100 % Interest On My M B A. YIPEE"...

9 All holiday maths activities should be eye catching with vibrant colours so that it is appreciated and displayed in lab &or for exhibition.( You may undertake any 3 activities of your interest &1 model is compulsory) 6. Revise chapters-sq. & Square Roots, Cube &Cube Roots, Introduction to graphs. Do 10 sums each daily, from R.D.Sharma, Together with Maths or any other refresher& prepare yourselves well for FA-1.Try & avail the facilities of school library during holidays. SUPW Draw and cut a king crown and decorate it by using assorted crystals. ART Write a short essay on the origin development and maintenance collect paintings, photographs of different monuments, traditional vases paintings, and jewellery and paste them in a separate scrap book and write 2 lines of each of them (25marks).