Secondary 1 Geography Map Graph Data Skills Quiz

Secondary 1 Geography Quiz - Map Graph Data Skills (Answer Key)

Total Marks: 40
Topic: Map, Graph & Data Skills

Section A: Map Reading

Q1 [1 mark]
Answer: 1223
Teaching note: A 4-figure grid reference uses the lower-left corner of the square. Easting (horizontal) first = 12, northing (vertical) = 23. Common mistake: reversing order to 2312.

Q2 [1 mark]
Answer: 333447 (acceptable 333446–333448 range)
Teaching note: 6-figure reference starts with 4-figure (3344) then adds tenths within square: 3/10 east = 3, 7/10 north = 7 → 333447. Subdivision estimates vary.

Q3 [1 mark]
Answer: 10 m
Teaching note: Contour interval = difference between adjacent labelled contours (110 − 100 = 10 m). Do not confuse with scale.

Q4 [2 marks]
Answer: The north has a hill reaching 200 m (concentric contours show high relief); the south is flat at 50 m (widely spaced or single low contour). [1 mark each point]
Teaching note: Relief describes land height variation. Close contours = steep; one low contour = flat.

Q5 [1 mark]
Answer: 1:50,000 (or 1 cm = 500 m)
Teaching note: Map scale shows ratio of map distance to ground distance.

Q6 [2 marks]
Working: Scale 1:50,000 → 1 cm = 50,000 cm = 0.5 km.
Map distance 4 cm × 0.5 km/cm = 2.0 km.
Answer: 2 km [1 mark method, 1 mark answer]
Teaching note: Convert cm to km: 50,000 cm = 500 m = 0.5 km.

Q7 [2 marks]
Answer: Triangle = hill; Blue line = river (any two correct: 1 mark each).
Teaching note: Standard topographic symbols. Green patch = forest, black square = building.

Section B: Graph Skills

Q8 [1 mark]
Answer: 150 mm
Teaching note: Read bar height at Month 3 against y-axis.

Q9 [2 marks]
Answer: Temperature generally rises from 28 °C in Week 1 to 33 °C in Week 5, with a small dip at Week 3 (29 °C). [1 mark trend, 1 mark detail]
Teaching note: Describe overall direction and note anomaly.

Q10 [2 marks]
Working: Sum = 5+8+12+15+10 = 50. Count = 5. Mean = 50 ÷ 5 = 10.
Answer: 10 [1 mark working, 1 mark answer]

Q11 [3 marks]
Answer: Domestic use is largest at 45%, industry second at 30%, agriculture 20%, recreation smallest at 5%. Pattern: most water used by domestic and industry combined (75%). [1 mark each for stating top, bottom, comparison]
Teaching note: Use percentages as evidence.

Q12 [2 marks]
Working: Increase = 50 − 20 = 30 m³/s. Trend = rising.
Answer: Increase 30 m³/s, rising trend [1 mark each]

Q13 [2 marks]
Answer: Positive relationship [1 mark]; as sunlight increases, plant growth increases [1 mark].
Teaching note: Points slope upward to right = positive correlation.

Section C: Data Tables & Fieldwork

Q14 [3 marks]
Answer: Distance from sun increases from Planet A (58) to D (778 million km). Pattern: A<B<C<D, with D much farther than others. [1 mark order, 1 mark values, 1 mark outlier note]
Teaching note: Use comparative language with numbers.

Q15 [2 marks]
Answer: Site X is healthier [1 mark]. Reason: higher dissolved oxygen (8 vs 4 mg/L) and lower turbidity (2 vs 10 NTU) indicate cleaner water [1 mark].

Q16 [2 marks]
Answer: Metal highest (70%). Difference = 70 − 20 = 50 percentage points [1 mark each].

Q17 [2 marks]
Answer: Site 1 (pH 6.5) is closer to neutral (7) [1 mark]. Difference 0.5 vs 1.0 for Site 2 [1 mark].

Q18 [3 marks]
Answer: As rainfall decreases (120→40 mm), temperature increases (28→32 °C); inverse relationship. [1 mark pattern, 1 mark data, 1 mark relationship type]

Q19 [2 marks]
Answer: General direction is north-east [2 marks]. From 1122 (south-west) to 1425 (north-east) using grid increase.

Q20 [3 marks]
Working: R = 200 × 150 = 30,000 L/day. S = 350 × 120 = 42,000 L/day.
Comparison: S uses 12,000 L/day more than R.
Answer: R 30,000 L; S 42,000 L; S higher [1 mark each]