Irrigation Systems Assessment

Name:

Date:

📚 Part 1: Knowledge Check

1. Which system delivers water directly to the plant root zone using small pipes or tapes?

Centre pivot

Sprinkler

Flood irrigation

2. Which regions in New Zealand commonly use centre pivot irrigation? (Check all that apply)

Canterbury

Waikato

Otago

Northland

3. Match each irrigation system with the correct description:

A. Drip

B. Centre pivot

C. Flood (surface)

D. Subsurface

1. Water covers the field surface

2. Rotating boom irrigates circular areas

3. Pipes or tape emit water at soil surface near roots

4. Pipes buried below soil deliver water directly to roots

4. Name one advantage and one disadvantage of drip irrigation.

5. Calculation: A farm requires 200 m³ of irrigation water per day. One sprinkler delivers 25 L/min and runs 8 hours per day. How many sprinklers are needed? Show working.

✏️ Part 2: Research, Model and Reflection (3 lessons)

Assessment Activity: You have three lessons to design and build a small model replica of your chosen irrigation system. The model can not exceed 50cm x 50cm. You can display your model using the large silver trays in a farm/ paddock set up. Each team member must submit their own

Lesson 1 — WALT: Understand common irrigation systems used in New Zealand.
Success criteria: I can name an irrigation system and describe it in detail.

Lesson 2 — WALT: Research and plan a model of one irrigation system.
Success criteria: I can produce a materials list, and labelled plan.

Lesson 3 — WALT: Build and test a small working model.
Success criteria: My model is a replication of the irrigation system, and I can explain how it meets real-world needs.

6. Research task: Which irrigation system did you choose? List three key features and one New Zealand example of which regions it is best suited to.

7. Model sketch: Draw and label your model (water source, pipes, valves, outlets). Then explain in one short paragraph how your model demonstrates the system.

8. List materials needed:

9. Reflection: How does your model meet the Success Criteria? Suggest one improvement for real-world application and one environmental consideration.