this is a holiday homework

1. Holidays Homework
Class VII( 2013)
ENGLISH
1 Do the worksheet given on the topic ‘Articles’ (printed and given )
2 Prepare a speech on the topic ‘Friendship’ for Intra class competition.
3 Write a book review of any one story book that depicts courage of people during
calamities/adversities.
4 Revise the syllabus included for Formative Assessment
5 Suggested reading for vacation:
a) The adventures of Tom Sawyer
b) The Famous Five
MATHS
1) Cut and paste two and three dimensional figures on a chart paper. Use stencil to write
topic and sub topic.
2) Make an impressive project file with the following contents.
Data Handling [Text Book Page 225]
Symmetry [Page 241]
Visualizing Solids [Page 253]
[More information can be obtained from Internet {Google Search}, Reference books from
School Library]
(OR)
3) Make colourful, bright and beautiful poster for Maths Lab. You can make geometrical
designs for example by
§ using vibrant colours,
§ Painting,
§ Cutting & Pasting
4) Revise sums done in class, examples from Text Book, in practice copy.
SCIENCE
Assignment 1
1. What are the components of food?
2. What is nutrition?
3. Why is need of nutrition?
4. What is autotroph?
5. What is autotrophic mode of nutrition?

2. 6. Give some example of autotrophs.
7. What is heterotrophic mode of nutrition?
8. Give examples of Heterotrophs.
9. What is saprotrophs?
10.What is photosynthesis?
11.What are the essentials factors for the photosynthesis?
12.What is chlorophyll?
13. Why do leave look green?
14.What is the function of chlorophyll?
15.What are the final products made after photosynthesis?
16.What are stomata?
17.What is function of stomata?
18.What is the ultimate source of energy?
19. How water is transported to the leaves?
20.What are the nutrients other than carbohydrates which are required by plants?
21.In which form do plants absorb nitrogen?
22.Why do farmers add nitrogenous fertilizers to the soil?
23.Which microorganism helps to provide nitrogen to the plants?
24.How do plants absorb nutrients other than carbohydrates from the soil?
25. What do you understand by parasitic plants?
26. Give some example of parasitic plants.
27.Why some plants are called parasites?
28.What is the mode of nutrition in non-green plants?
29.What do you understand by non-green plants?
30. What do you understand by host?
31.What is partial parasite?
32. Give example of partial parasitic plants?
33.What is an insectivorous plant?
34.Give an example of insectivores plant?
35.Why does a plant eat insects?
36. Write a brief note on pitcher plants?
37.What do you understand by saprotrophs?
38.Saprophytes grow in which type of places?
39.Give some example of saptrotrophs
40.What is Lichen?
41.Give an example of symbiotic relationship.
42.How do nutrients get replenished in the soil?
43.What is Rhizobium?
44.What is the function of Rhizobium?
45. How does Rhizobium help farmers?
46.Why do farmers prefer to sow leguminous plants?
47.In which form do plants absorb nitrogen?

3. Assignment 2
1. What is ingestion?
2. What is digestion?
3. What is absorption?
4. What do you understand by assimilation?
5. What do you understand by egestion?
6. What are the steps of nutrition involved in animals?
7. What are Pseudopodia?
8. How many types of teeth are found in human beings?
9. How many incisors are found in an adult human?
10. What is the function of incisors?
11. How many canines are found in an adult human?
12. What are the functions of Canines?
13. How many premolars are found in an adult human?
14. What is the function of premolars?
15. How many molars are found in an adult human?
16. What is wisdom tooth?
17. How many teeth does a human adult have?
18. What do you understand by milk and permanent teeth?
19. What is Enamel?
20. What is a carnivorous animal? Give two examples.
21. What is the function of the digestive juice secreted by the liver?
22. Name the organs that make up the alimentary canal
23. Name the four types of teeth.
24. Name the four compartments in a ruminant’s stomach.
25. Match the following:
26. Fill in the blanks.
1- Most of the enzymes in the small intestine come from ______
2-The __________ present on our tongue help us to taste food.
3-Saliva is secreted in the mouth by _______________
4-Living organism that cannot make their own food are called__________
SOCIAL SCIENCE
1. Write a detailed report on the topic “Disappearing Sparrows of Delhi”.
The report should include the following topics:
• Statistics on decline in number of sparrows
• Causes of their decline

4. • Steps for conservation being taken by Delhi Government
2. Do the following questions from lesson ‘Surface and Interior of the Earth’ in Social
Science Practice Copy.
• How is the height of mountains calculated?
• Which is the highest and the lowest point of earth’s surface.
• What do we know about the interior of the earth?
• What is an earthquake? How is it caused?
• Differentiate between P wave and S wave?
• Explain the interior of the earth with the help of a diagram.
• How are igneous rocks formed?
• What are sediments?
• How are sedimentary rocks formed?
• How are fossil fuels formed? Give some examples of fossil fuels.
• What are metamorphic rocks?
• What are the basis on which minerals are identified? Which is the hardest mineral?
3. Revise lessons ‘Components of Environment’, ‘The Earth and the changes on it’ and
‘Rise of small kingdoms in North India’.