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S1 Geography: Map Reading and Scale (Paper 4: mistake clinic)
S1 Geography: Map Reading and Scale (Paper 4: mistake clinic)
S1 Geography map reading paper four, error clinic: ten questions on the usual slips of skipped unit conversion, reversed grid references, area scaled only once, and misreading what the denominator means.
Direct answers Answers in order: 20 000 cm, 2 000 m, easting first, 200 m, 220 m, 5 cm, 1 800 m, 0.25 square kilometres, crowded means steep and sparse means gentle, and a smaller denominator gives more detail.
01 Paper details (check answers afterwards)
| Item | Detail |
|---|---|
| Questions | 10 |
| Suggested time | 20 |
| Difficulty mix | Foundation 3 · Intermediate 3 · Challenge 3 · Error redo 1 |
| Chapter | Chapter: S1 Geography: Map Reading and Scale |
| Level | S1 Geography |
02 Questions (10 items)
- FoundationWith a scale of 1:20 000, 1 cm on the map corresponds to how many centimetres on the ground?
- FoundationA length of 4 cm is measured on a 1:50 000 map. What is the real distance?
- FoundationIn the grid reference 1234, which digits are read first?
- IntermediateA length of 8 mm is measured on a 1:25 000 map. What is the real distance in metres?
- IntermediateA peak is marked 480 m and a valley 260 m. What is the relative height?
- IntermediateHow many centimetres represent a real 1 km on a 1:20 000 map?
- ChallengeA length of 9 cm is measured on a 1:20 000 map. What is the real distance?
- ChallengeOn a 1:25 000 map a square plot measures 2 cm by 2 cm. What is its real area in square kilometres?
- ChallengeWhat do crowded and widely spaced contours indicate?
- Error redoA student says a larger denominator makes a map more detailed. Is that right?
03 Answers and one-line notes
| # | Answer | One-line note |
|---|---|---|
| 1 | 20 000 cm, which is 200 m. | Both sides use the same unit, so read centimetres first and convert afterwards. |
| 2 | 2 000 m, that is 2 km. | Each centimetre is 500 m, so four centimetres give two kilometres. |
| 3 | The easting 12 first, then the northing 34. | Every grid reference puts the easting before the northing. |
| 4 | 200 metres. | Eight millimetres is 0.8 cm, which times 250 m per centimetre gives 200 m. |
| 5 | 220 metres. | Subtracting the two spot heights gives the relative height. |
| 6 | Five centimetres. | One thousand metres divided by 200 m per centimetre gives five. |
| 7 | 1 800 m, that is 1.8 km. | Each centimetre is 200 m, so nine centimetres give 1 800 m. |
| 8 | 0.25 square kilometres. | The plot is 500 m by 500 m, that is 0.5 km by 0.5 km. |
| 9 | Crowded contours mean a steep slope, widely spaced ones mean gentle ground. | For the same height change, a shorter horizontal distance means a steeper slope. |
| 10 | No. A smaller denominator such as 1:10 000 gives the more detailed map. | A small denominator means a centimetre covers less ground, so more detail fits on the sheet. |
04 What to do after marking
- After marking, redo only the wrong items and write down which step went wrong (formula, unit, or misread number).
- Repeat the same item two days later; move to the next paper only when both attempts are correct.
- Parents only need the answer and note columns; there is no need to explain every item.
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