06 Layers of Rock & the Grand Canyon
👩🏫 Teacher’s Guide
Objective
Students will explain how sediment forms rock layers and describe forces that shaped the Grand Canyon.
Vocabulary
sediment, deposit, channel, expand, sloping
Teaching Notes
- Start with a quick demo or model to visualize the concept.
- Pre-teach key vocabulary with gestures or sketches.
- Prompt students to predict, observe, and explain in full sentences.
- Check for understanding using either/or and short-answer prompts.
🧒 Student Worksheet
Concept and Helping Material
Definition. Over millions of years, sediments are deposited and pressed into rock; water, ice, wind, and gravity carved the Grand Canyon.
Helping ideas and samples:
- Try a quick sort, draw-and-label, or compare-and-contrast.
- Name one place you see this idea at home or at school.
- Safety: follow teacher directions and handle materials carefully.
Vocabulary and Definition
- — tiny pieces of rock and minerals
- — to lay down material carried by wind/water/ice
- — a cut or groove made by moving water
- — to grow larger
- — tilted or angled
Words to Learn
, , , ,
Sentences to Fill In
1. A river can cut a as it erodes land.
2. When water freezes in rock cracks, it and splits rock.
3. Long-term layers of become rock.
4. Rain runs downhill on land.
5. Sand laid down by water is said to be .
Hands-On Experiment or Activities
What You Need: simple classroom items.
What You Do: Weathered rock comparison: examine two stones—describe texture and shape; infer which is more weathered.
Think and Talk: What changed? What stayed the same?
Reflection
- Why might wind and water carve different shapes in rock?
- How does freezing water help widen canyon cracks?