The City School PAF Chapter

Transcription

1 The City School PAF Chapter Geography Intervention workbook (1 st Term) Class 7

2 Topic: weather and climate Section A Q1. Fill in the blanks. [ /10] 1. The world can be divided into three broad climatic zones based on. 2. The breeze blows when the pressure is higher at the sea. 3. Weather appears in the layer of atmosphere called the. 4. The atmosphere is composed of % of oxygen. 5. Six s thermometer is kept inside screen. 6. is used to measure the speed of the wind. 7. In the center of the cyclone is the where air descends and it is calm. 8. Climate will be found near the equator of the earth. 9. The change in direction is the chief feature of monsoon climate. 10. The breeze moves when the land is cool.. Q.2 Identify the following by looking at the pictures and fill the information in the box provided below. [ /08] Name of the rainfall: Definition: The City School /PAF Chapter / Prep + Senior I Section / Worksheet for Intervention Class /Geography /Class 7 Page 2 of 15

3 NAME OF THE INSTRUMENT: USE OF THE INSTRUMENT: NAME OF THE INSTRUMENT: USE OF THE INSTRUMENT: NAME OF THE INSTRUMENT: USE OF THE INSTRUMENT: The City School /PAF Chapter / Prep + Senior I Section / Worksheet for Intervention Class /Geography /Class 7 Page 3 of 15

4 Q.3 Match the names of instruments to their uses by writing the correct answer in Column C. [ /05] COLUMN A COLUMN B COLUMN C a. Stevenson`s thermometer It measures the rainfall. b. Anemometer It shows the direction of the wind. c. Barometer It measures the temperature of the atmosphere. d. Wind vane It measures the speed of the wind. e. Rain gauge It measures the air pressure. The City School /PAF Chapter / Prep + Senior I Section / Worksheet for Intervention Class /Geography /Class 7 Page 4 of 15

5 Section B Q.4 Name any five elements of weather. [ /05] Q.5 Define the following terms: [ /04] a. Radiation: b. Evaporation: c. Condensation: d. Wind: The City School /PAF Chapter / Prep + Senior I Section / Worksheet for Intervention Class /Geography /Class 7 Page 5 of 15

6 Q.6 Carefully observe the following map, which shows a specific time of the year with particular weather patterns on Asia Pacific region. Then answer the following: [ /05] Low 998 mb High 1018 mb a) Draw the arrows to show the direction of winds as per the pressure conditions. b) What are the winds called? c) Which season is there in the area where the winds blow? d) Why these winds blow from one land to another? Give reason. e) Why these winds are wet? Q7. Write the characteristics of equatorial climate. [ /05] The City School /PAF Chapter / Prep + Senior I Section / Worksheet for Intervention Class /Geography /Class 7 Page 6 of 15

7 Q8- Explain how air is cooled to form rainfall. [ /03] The City School /PAF Chapter / Prep + Senior I Section / Worksheet for Intervention Class /Geography /Class 7 Page 7 of 15

8 Topic: Fresh water Section A Q1. Fill in the blanks. [ /10] 1. Water is made up of tiny particles called. 2. The growth of population in a country means that more is required. 3. The United Nations declared the year to be the international year of fresh water. 4. Human beings can last only days without drinking water. 5. According to environmentalists in next years, some parts of world could begin to run out of fresh water. 6. About % of the world s population have no safe drinking water. 7. The Indus water treaty in between Pakistan and India helped to solve the dispute over water shortage. 8. There are over desalination plants in the world. 9. is the country, which desalinates by far the largest quantity. 10. Only and are downstream of the Blue Nile in Ethiopia. Q.2 Choose the correct answer: [ /04] a. The only natural substance that exist in three states is i. Light ii. Air iii. Water b. We can get fresh water from sea water by the process of i. Dehydration ii. Distillation iii. Desalination c. In one molecule of water there are. i. 3 atoms of hydrogen and 2 atoms of oxygen ii. 2 atoms of hydrogen and 1 atom of oxygen iii. 1 atom of hydrogen and 2 atoms of oxygen d. Seas and oceans contains % of salty water that we cannot drink. i. 87% ii. 67% iii. 97% The City School /PAF Chapter / Prep + Senior I Section / Worksheet for Intervention Class /Geography /Class 7 Page 8 of 15

9 Section B Q3. Write three reasons that are causing water shortage in Pakistan. [ /03] Q4. Explain the problems associated with the desalination of seawater. [ /03] Q5. What are the results of shortage of fresh water? [ /03] Q6. Explain how shortage of water for irrigation affects the cotton growing farmers. [ /05] The City School /PAF Chapter / Prep + Senior I Section / Worksheet for Intervention Class /Geography /Class 7 Page 9 of 15

10 Topic: water Section A Q1. Fill in the blanks. [ /10] 1. Water is constantly cycled in a continuous cycle called the. 2. The water that is stored in the soil and rocks is called. 3. There is more evaporation from oceans than anywhere else in the world. 4. Currents are large masses of water that move in the regular patterns. 5. Smaller river or stream that flows into the main river is called a. 6. A river s work depends on the of the river. 7. The river with the greatest flow of water in the world is river % of the world s electricity is. 9. The river is one of the longest rivers in the world. 10. is a triangular shaped island formed near the mouth due to deposition by the river. Q2. Choose the correct answer: [ /04] a) On a sloping steepland a river gains high. i. Volume ii. Sediment iii. Velocity b) Due to the fragments of rocks grind the riverbed& its banks. i. Corrasion ii. Corrosion iii. Saltation c) Erosion results in the formation of landform known as. i. Waterfall ii. Plain iii. Meander d) According to the Indus Water Treaty India was given the water of. i. Rivers Indus & Jhelum ii. Rivers Chenab & Ravi iii. Rivers Ravi & Sutlej The City School /PAF Chapter / Prep + Senior I Section / Worksheet for Intervention Class /Geography /Class 7 Page 10 of 15

11 Q.3 True and False: [ / 05] a) IRSA reports to PID about the allocation of required volume of water for each province. b) The Aswan Dam is a multi-purpose dam to supply 40 % of Egypt`s electricity. c) Distributaries carry the water towards the river. d) Permeable rocks cannot absorb water. e) When a river`s velocity & volume is high it deposits its load. f) The breaking down of rocks is called erosion. g) KuroSiwo currents are the warm ocean currents. h) The Tarbela dam is built on river Indus. Q4. Identify the features made by a river in the following images [ /02] The City School /PAF Chapter / Prep + Senior I Section / Worksheet for Intervention Class /Geography /Class 7 Page 11 of 15

12 Section B Q5. Define the following [ /05] a) Corrosion b) Confluence c) Ocean currents d) Meanders e) River basin Q6. Draw a flow chart to show the work of a river? [ /05] WORK OF A RIVER EROSION TRANSPORTATION DEPOSITION Hydraulic action Traction Decrease in river`s velocity- Corrasion Saltation Decrease in river`s volume Suspension Corrosion Solution The City School /PAF Chapter / Prep + Senior I Section / Worksheet for Intervention Class /Geography /Class 7 Page 12 of 15

13 Q7. Explain the influence of the oceans on the world s weather and climate. [ /03] Q8. Explain the main uses of river. [ /03] Q9. How does a river form a delta? [ /05] Q10.Explain the function and different parts of a hydroelectric power station. [ /10] The City School /PAF Chapter / Prep + Senior I Section / Worksheet for Intervention Class /Geography /Class 7 Page 13 of 15

14 Q11. Differentiate between lined and unlined canals. [ /02] Lined canals Unlined canals Q12.Differentiate between inundation and perennial canals. [ /02] Inundation canals Perennial canals Q13. Discuss different landforms which are formed by river deposition. [ /03] The City School /PAF Chapter / Prep + Senior I Section / Worksheet for Intervention Class /Geography /Class 7 Page 14 of 15

15 Q14. Tell the basic facts about Nile river and irrigation in Egypt. [ /03] The City School /PAF Chapter / Prep + Senior I Section / Worksheet for Intervention Class /Geography /Class 7 Page 15 of 15