ST VENERA BOYS SECONDARY SCHOOL HALF-YEARLY EXAMINATIONS 2014~15

Transcription

1 ST VENERA BOYS SECONDARY SCHOOL HALF-YEARLY EXAMINATIONS 2014~15 Form 2 Level Geography Time: 1hr 30 mins Name: Class: Instructions: Answer all questions in good English. Organised work and clear handwriting is a must. Geographic Vocabulary: Qalba interna inner core Attiv active Qoxra crust Qalba esterna outer core Extint extinct Nixxiegħa ta lava lava flow Mantell mantle Krejter crater Terremot -earthquake Pjattaformi tettoniċi tectonic plates Kurrenti Ċirkolari convection currents Bombi vulkaniċi volcanic bombs Saffi ta lava u rmied layers of lava and ash Sħaba tar-rmied u gassijiet ash cloud Ħawt tal-magma magma chamber Munġbell vulkaniku volcano cone Sħaba piroklastika pyroclasitc cloud Muntanji mmewġa fold mountains Pajp Vulkaniku prinċipali main vent Infiltrazzjoni infiltration Ilma ta taħt l-art underground water Epiċentru epicentre Preċipitazzjoni precipitation Kondensazzjoni condensation Ilma tal-wiċċ surface runoff Evaporazzjoni evaporation Page 1 of 14

2 Question number 1: The Internal Structure of the Earth i. In the space provided below, draw the diagram that shows the internal structure of the earth. Label the diagram using the following key words: Inner core Convection currents Mantle Crust Outer core (5 x 1 mark = 5 marks) ii. Fill in the blanks: The internal stucture of the Earth is divided into layers. At the centre we find the - the and the outer segment. The next layer is the. This layer is made up of molten rock called. Earth s outer layer is called the. It is Page 2 of 14

3 made up of solid rock. However, this layer is broken into various pieces called. These platforms move in different directions as a result of in the mantle. At the boundaries of these platforms, we find and. (10 x 1 mark = 10 marks) Question number 2: Pangea and the Sea of Tethys Study the maps below and answer the questions: World Map 200 million years ago World Map 50 million years ago i. What was Pangea? ii. What happened to the Tethys Sea over the years? Page 3 of 14

4 (2 x 2 marks = 4 marks) Question number 3: Convection Currents i. Label the diagram with the following key words: Mantle Core Convection Currents Tectonic Plates (4 x 1 mark = 4 marks) ii. Write a paragraph (5 sentences) and explain convection currents in the earth s mantle. Page 4 of 14

5 (5 marks) Question number 4: Fold mountians i. Fill in the blanks: Fold mountains form when move into each other. As the platforms continue to push against each other, the land is forced to. In general, the formation of these mountains is characterised. The Mediterranean Region is surrounded by a number of fold mountains. The mountains in Greece and the mountains in Turkey are examples of fold mountains in the Mediterranean. (5 x 1 mark = 5 marks) Page 5 of 14

6 ii. The Mediterranean Region is surrounded by a series of fold mountains. Write 5 sentences to explain how fold mountains formed around this region. (5 marks) iii. This map is showing a number of fold mountains around the Mediterranean. Write the corresponding name in the table on page 7. Page 6 of 14

7 Mountains Alps Atlas Pyrennes Rhodope Appennines (5 x 1 mark = 5 marks) Question number 5: Volcanic Activity i. The photo above shows Stromboli a volcanic island in Italy. Is this volcano active, dormant or extinct? Give reasons for your answer. (2 marki) Page 7 of 14

8 ii. Define: An active volcano: An extinct volcano: (2 x 2 marks = 4 marks) iii. This map shows 4 volcanoes in the Mediterranean. Write the corresponding name in the table below. Volcano Vessuvius Etna Page 8 of 14

9 Santorini Stromboli (4 x 1 mark = 4 marks) iv. Use the pictures below and explain 2 advantages present in volcanic regions, for the local people (2 x 2 marks = 4 marks) v. Label the diagram on page 10 with the following key words: crater ash cloud magma chamber pyroclastic cloud Lava flow Page 9 of 14

10 secondary volcanic cone volcanic lava and ash main volcanic bombs layers vent (9 x 1 mark = 9 marks) Question number 6: Earthquakes Earthquakes in Northern Italy, 2012 In May 2012, in Northern Italy, the region of Emilia Romagna, was struck by two destructive earthquakes. The first quake took place on May the 20 th. This quake had a magnitude of 5.8 on the Richter Scale. Nine days later, May the 29 th, another earthquake struck the same region. It had a Page 10 of 14

11 magnitude of 5.8 on the Richter scale. The epicentre of this earthquake was in Medolla. These 2 strong earthquakes resulted in the destruction of churches and factories in the region. Buildings weakened by the first quake were badly damaged during the second one. Around 45,000 people were homeless and around 400 people were injured. A total of 27 people died in these 2 earthquakes.. i. Read the text above and give the key words for the following definitions: 1. It quantifies the energy released from an earthquake 2. The point of the earth surface that is directly above the point where the earthquakes originates (2 x 2 marks = 4 marks) ii. Read the text above and list 4 negative impacts related to earthquakes: (4 x 1 mark = 4 marks) Page 11 of 14

12 iii. Mention 2 examples of safety procedures one should follow in case of an earthquake (2 x 1 mark = 2 marks) Question number 7: Water... water is a very important natural resource... the ammount of water on earth is always constant... nearly 70% of the earth s surface is covered with water... only 1% of this water is potable (drinkable)... clean and fresh water is necessary for our health... water is the substance of life... i. Mention 4 domestic (at home) uses of water (4 x ½ mark = 2 marks) ii. List and explain 2 other uses of water (not at home) (2 x 2 marks = 4 marks) Page 12 of 14

13 Question number 8: The Water Cycle 7. i. Carefully study the diagram above. Write the correct number from the diagram next to the corresponding process. Transpiration Precipitation Infiltration Condensation Underground water Evaportion Surface water (7 x 1 mark = 7 marks) Page 13 of 14

14 ii. Fill in the blanks: The warms up the water in rivers, lakes, seas and oceans and the water. Water vapour (gas) rise in the atmosphere. As the air cools, the water vapour is condenses into tiny water droplets. These tiny droplets form the. As the tiny water droplets grow larger, they become heavier and falls. Rain water is recollected in rivers, lakes, seas and oceans and the will repeat itself over and over again. (5 x 1 mark = 5 marks) iii. Define the following processes: 1. Evaporation: 2. Condensation: 3. Infiltration: (3 x 2 marks = 6 marks) The End Page 14 of 14