Summary
Summary Geomorphology revision
- Course
- Geography
- Institution
- 12th Grade
Is a book review that explains all about rivers and their behaviors
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, TABLE OF CONTENTS1. INTRODUCTION 3
2. HOW TO USE THIS SELF STUDY GUIDE? 4
3. EXAMINATION STRUCTURE 5
4. EXAMINATION TIPS 6
4.1 TYPES OF QUESTIONS 6
4.2 FLASHBACK ON THE WATER CYCLE 8
5. CONCEPTS OF DRAINAGE BASINS 9
A. KEY CONCEPTS AND NOTES 9
B. FACTORS INFLUENCING INFILTRATION OF WATER 10
C. DRAINAGE BASINS ACTIVITIES 11
6. TYPES OF RIVERS 14
A. KEY CONCEPTS 14
B. NOTES AND EXPLANATION 14
C. TYPES OF RIVERS ACTIVITY: 16
7. DRAINAGE PATTERNS 17
A. KEY CONCEPTS 17
B. NOTES AND EXPLANATIONS 17
C. DRAINAGE PATTERNS ACTIVITIES 21
8. DRAINAGE DENSITY 25
A. KEY CONCEPTS 25
B. FACTORS INFLUENCING DRAINAGE DENSITY 26
C. DRAINAGE DENSITY ACTIVITIES 28
9. STREAM ORDERS 30
A. KEY CONCEPTS AND NOTES 30
B. LAWS OF STREAM ORDERS 30
C. ACTIVITY ON MAP WORK APPLICATION OF STREAM ORDERS 31
10. RIVER DISCHARGE 32
A. KEY CONCEPTS AND NOTES 32
B. FLUVIAL PROCESSES 33
11. RIVER PROFILES AND THE STAGES OF A RIVER 34
A. LONGITUDINAL PROFILE AND STAGES OF A RIVER 34
B. CROSS /TRANSVERSE PROFILE: FRONT VIEW OF A RIVER FROM BANK TO
35
BANK
1
,12. RIVER GRADING 36
A. KEY CONCEPTS AND NOTES 36
B. BASE LEVELS OF EROSION 37
C. RIVER GRADING ACTIVITIES 38
13. FLUVIAL LANDFORMS IN THE DIFFERENT STAGES OF THE RIVER 40
A. KEY CONCEPTS AND NOTES 40
B. FLUVIAL LANDFORMS AND FEATURES ACTIVITIES 48
14. RIVER REJUVENATION 55
A. KEY CONCEPTS AND NOTES 55
B. RESULTANT LANDFORMS 55
C. RIVER REJUVENATION ACTIVITIES 56
15. RIVER CAPTURE/STREAM PIRACY 58
A. KEY CONCEPTS AND NOTES 58
B. CAUSES AND CHARACTERISTICS 59
C. STREAM PIRACY ACTIVITIES 62
16. SUPERIMPOSED AND ANTECEDENT DRAINAGE PATTERNS 64
A. KEY CONCEPTS AND NOTES 64
C. SUPERIMPOSED AND ANTECENDENT DRAINAGE ACTIVTIES 65
17. CATCHMENT AND RIVER MANAGEMENT 66
A. KEY CONCEPTS AND NOTES 66
B. CAUSES, IMPORTANCE AND IMPACT OF RIVER MANAGEMENT 66
C. CATCHMENT AND RIVER MANAGEMENT ACTIVITIES 69
18. POSSIBLE ANSWERS 72
19. EXAMINATION ACTION VERBS 84
20. REFERENCES 87
21. ACKNOWLEDGEMENTS 88
2
, 1. INTRODUCTION
The declaration of COVID-19 as a global pandemic by the World Health
Organisation led to the disruption of effective teaching and learning in many
schools in South Africa. The majority of learners in various grades spent less
time in class due to the phased-in approach and rotational/ alternate
attendance system that was implemented by various provinces.
Consequently, the majority of schools were not able to complete all the
relevant content designed for specific grades in accordance with the
Curriculum and Assessment Policy Statements in most subjects.
As part of mitigating against the impact of COVID-19 on the current Grade 12,
the Department of Basic Education (DBE) worked in collaboration with subject
specialists from various Provincial Education Departments (PEDs) developed
this Self-Study Guide. The Study Guide covers those topics, skills and
concepts that are located in Grade 12, that are critical to lay the foundation
for Grade 12. The main aim is to close the pre-existing content gaps in order
to strengthen the mastery of subject knowledge in Grade 12. More
importantly, the Study Guide will engender the attitudes in the learners to
learning independently while mastering the core cross-cutting concepts.
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