PJC_H1_GEO

PIONEER JUNIOR COLLEGE JC2 Preliminary Examination Higher 1 GEOGRAPHY 8813/01 Paper 1 11 September 2017 3 hours Additional Materials: Answer Paper World outline map READ THESE INSTRUCTIONS FIRST Write your Name, Class and Index Number on the work you hand in. Write in dark blue or black pen on both sides of the paper. You may use a HB pencil for any diagrams or graphs. Do no use staples, paper clips, glue or correction fluid. Answer four questions in total. Section A Answer Question 1. Section B Answer Question 2. Section C Answer two questions, each from a different theme. The Insert contains all the Resources referred to in the questions. You should make reference to appropriate examples studied in the field or the classroom, even where such examples are not specifically requested by the question. Diagram and sketch maps should be drawn whenever they serve to illustrate an answer. The world outline map may be annotated and handed in with relevant answers. You are reminded of the need for good English and clear presentation in your answers. At the end of the examination, fasten all your work securely together. The number of marks is given in brackets [ ] at the end of each question or part question. This document consists of 4 printed pages.

2   Section A Theme 3: Geographical Investigation 1 Your class was divided into groups of 4 to undertake a fieldwork exercise to investigate the influence of land use on infiltration rates in Singapore. Your group chose to conduct the study at 2 sites of different landuse. Site A is a built up residential area in Bukit Batok whilst Site B is a nature park in Bukit Batok. Your group identified one suitable point at each site to conduct the investigation and took measurements twice: on a Saturday morning and early afternoon in June 2017. Your group was given 3 hours to complete each measurement. The following equipment were provided to measure infiltration rate at the two different land use sites: • Single-ring infiltrometer comprising a tin can about 30cm tall with a diameter of 10cm with both ends of it removed. • 1.5 litre bottle of water • A ruler • Hammer • Wooden plank • Stopwatch At the respective sites, the tin can was driven into the soil to about 10cm deep by using a hammer onto a wooden plank placed on the rim of the can. A ruler was placed vertically inside the tin can to record the fall in water level. Water was poured to a depth of 10cm. Measurements of the remaining depth of water was taken every 15 minutes to compute the infiltration rate. At the same time constant top-ups of water were carried out to maintain a regular head of water above soil. Your group also collected soil samples from both sites. It was deduced that the soil collected from Site A was clay whilst the soil collected at Site B was sand. Resource 1 shows photographs of Sites A and B where