Test your skill

The “Grand Finale” Revision Quiz (Chapters 1–12) 

Q1: What are the two layers of the Earth’s crust, and which one is the “floor” of the ocean? 

• Answer: Sial (Continental) and Sima (Oceanic). Sima is the ocean floor.
• Mnemonic: “Sima is under the Sea” (Oceanic). 

Q2: Which rock type is formed from “Fire” (molten magma) and has no fossils? 

• Answer: Igneous Rocks.
• Mnemonic: “Igneous is Ignited” (like fire). 

Q3: In a fold mountain, what is the “upfold” called? 

• Answer: Anticline.
• Mnemonic: “Anticline looks like an A” (The letter ‘A’ points up). 

Q4: What is the process where a river “steals” the water of another river? 

• Answer: River Capture (or River Piracy).
• Mnemonic: “Pirate rivers Capture the treasure” (water). 

Q5: What do you call the horseshoe-shaped lake left behind by a meander? 

• Answer: Ox-bow Lake.
• Mnemonic: “Ox-bow is a U-turn” (The shape of the lake). 

Q6: What is a “Tarn”? 

• Answer: A circular lake formed in a Corrie (glacial hollow) after the ice melts.
• Mnemonic: “Tarn in a Corrie” (TC – like Top Class view). 

Q7: Which desert landform looks like a mushroom because wind erodes the base faster? 

• Answer: Rock Pedestal (Mushroom Rock).
• Mnemonic: “Pedestals have a thin Pole” (the base). 

Q8: What are the vertical “cracks” and horizontal “blocks” in limestone called? 

• Answer: Grikes (cracks) and Clints (blocks).
• Mnemonic: “Grikes are Gaps; Clints are Concrete blocks.” 

Q9: What is the deepest point in the world’s oceans? 

• Answer: The Mariana Trench.
• Mnemonic: “Mariana is Miles deep.” 

Q10: What do we call a ring-shaped coral reef with a lagoon in the middle? 

• Answer: Atoll.
• Mnemonic: “Atoll is a Hole” (The lagoon in the middle). 

Bonus: The “Quick-Fire” Rock Cycle Mnemonic 

If you ever forget which rock turns into what during metamorphism: 

• Limestone $\to$→ Marble: “Little Monsters”
• Sandstone $\to$→ Quartzite: “Smart Queens”
• Clay $\to$→ Slate: “Clean Slate” 

Part 1 Mastery Checklist 

Before we move to Chapter 13, ensure you are comfortable with these “Big Three”: 

1. Internal Forces: Folding, Faulting, Volcanoes.
2. External Forces: Rivers, Glaciers, Wind, Waves.
3. Water Bodies: Lakes, Coral Reefs, Ocean Currents. 

How many did you get right? If you got 8/10, you are ready for Chapter 13: Weather! Shall we begin?