SECTION A: WRITTEN EXAMINATION PAPER School Assessment Paper Subject: Science | Grade: 4 | Time Allowed: 40 Mins | Total Marks: 25 Student Name: ________________________ Part I: Multiple Choice Questions (5 Marks) 1. Which of the following is the primary cause of physical weathering in rocks? a) Plant growth and root expansion b) Freezing and thawing of water in cracks c) Acid rain reaction d) Wind blowing sand Part II: Short Answer Concept Questions (10 Marks) 2. Explain the difference between weathering and erosion in your own words. (4 Marks) ______________________________________________________________________ --- SECTION B: ORAL VIVA VOICE EXAMINATION DECK Viva Question 1: "If a rock breaks apart because tree roots grow into it, is that weathering or erosion? Explain how you know." Viva Scoring Rubric: - Level 4 (Exceeds): Correctly identifies weathering and articulates that the rock stays in place while breaking. - Level 3 (Meets): Correctly identifies weathering with basic explanation. - Level 2 (Developing): Identifies weathering but confuses movement/erosion. - Level 1 (Needs Support): Unclear explanation or confuses terms. --- SECTION C: MASTER ANSWER KEY 1. b) Freezing and thawing of water in cracks (1 Mark) 2. Weathering breaks down rocks in place (2 Marks); Erosion moves rock particles to a new location (2 Marks).