- dav hzl senior secondary school
Transcription
- dav hzl senior secondary school
Holiday Home Work Class VIII English 1. Learn chapter -1 for FA-1. 2. On behalf of the king, write a notice inviting people to respond to his three questions. Mention the three questions also. 3. Write in about 80 words “how I spent my summer vacation. On an A4 size paper. Social Sciences 1. List out five resources you use in your home and five you use in your classroom. 2. Make a list of five man made resources that you can observe around you. 3. Activity:- Pick up a stone, a leaf and a straw. Think of how you can use these as resources. Maths 1. Find the squre root of the following numbers by long division method:i). 9801 ii) 363609 iii) 1471369 iv) 64432729 v) 9653449 2. Find the least number which must be subtracted by the following numbers to obtain a perfect square:i). 6503 ii) 6303 iii) 5928 3. Find the least number which must be added to following numbers to obtain a perfect square. i) 7529 ii) 2963 iii) 7205 4. By which smallest number the following number be multiplied to obtain a perfect cube:i) 5600 ii) 910 iii)7245 5. Find the smallest number by which the following numbers be divided to obtain a perfect cube:i) 2548 ii) 15436 iii) 399 Science Section – A (a) Project workMake a model or draw on chart paper, any one diagram of following and label it properly(i) Plant cell (ii) Animal cell (iii) Different types of micro organisms. (iv) Endemic , endangered and extinct species of plants and animals. (b) Activity on paper (A-4) :(i) Visit a nearby hospital , contact with doctor and write a report by making the list of diseases with their symptoms in which vaccination is given. (ii) How zoo, sanctuary and national park are differ from each other ? Also write a list of above present in our state Rajasthan. Section – B Answer the following questions 1. An object experiences a net non-zero force. Is it possible for the object to travel with a constant speed in a straight line? 2. ‘Snow shoes’ are more effective for walking on snow than ordinary shoes. Why? 3. When we throw a ball upwards, what happens to its speed while it is going up? Give reason for your answer. 4. Give two examples, from daily life, where a force may change the shape of an object. 5. Explain why porters’ place a round piece of cloth on their heads when they carry heavy loads. 6. Define force. Is it necessary for the two bodies to be in direct contact, for a force to exit between them? 7. In the following situations, identify the agent exerting the force. Also state the effect the force in each case. (a) Squeezing a piece of lemon between the fingers to extract its juice. (b) A person diving into a swimming pool. (c) A labourer, moving a loaded cart. (d) A car coming to rest once its engine is switched off. (e) An athelete, making a high jump, to clear the bar at a certain height. 8. State the forces acting on a school bag held above the ground level in your hand. Discuss why the forces, acting on the bag, do not bring a change in its state of motion. 9. State some applications where we reduce the pressure by increasing the surface area over which the force is exerted.