Assessment: The Water Cycle

Subject: Geography | Year: 6

Name: _________________________ Class/Set: ____________ Date: ____________

Section A: Knowledge Check (Multiple Choice)

Mark the correct answer.

Q1: Which of the following provides the primary energy source required for the water cycle to function?

a) ☐ Gravity b) ☐ The Sun c) ☐ Wind currents d) ☐ Geothermal heat

Q2: When water vapour cools down and turns back into liquid water droplets, which process has occurred?

a) ☐ Evaporation b) ☐ Transpiration c) ☐ Precipitation d) ☐ Condensation

⇨ The following scenario describes the changes observed in a school playground following a heavy rainstorm during a warm Summer afternoon.

After the rain stopped, a large puddle formed on the tarmac. Two hours later, the puddle had completely disappeared despite no further rain falling.

Q3: Which process is most likely responsible for this?

a) ☐ Infiltration b) ☐ Evaporation c) ☐ Sublimation d) ☐ Condensation

Q4: Which term best describes the process where plants release water vapour into the atmosphere through their leaves?

a) ☐ Transpiration b) ☐ Transportation c) ☐ Respiration d) ☐ Interception

Q5: What happens to water molecules as they are heated by solar energy at the surface of the ocean?

a) ☐ They slow down and group together. b) ☐ They turn into ice crystals. c) ☐ They gain energy and turn into an invisible gas. d) ☐ They sink to the bottom of the ocean due to density.

Section B: Application (Written Answers)

Answer in the spaces provided.

⇨ The data provided in the table below shows the amount of surface run-off measured in two different environments over a 24-hour period during a heavy storm.

Environment Type	Total Rainfall (mm)	Surface Run-off (mm)	Infiltration (mm)
Wooded Forest	50	5	45
Urban Town Centre	50	42	8

Q6: Calculate the difference in surface run-off between the Urban Town Centre and the Wooded Forest. [2 marks]

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Q7: Using the data provided and your own geographical knowledge, explain why the 'Urban Town Centre' has a much higher rate of surface run-off than the 'Wooded Forest'. [4 marks]

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Total Marks: _______ / 11

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⚠ TEACHER’S GUIDANCE

💡 Pedagogical Landing

• Target Audience: Year 6 (KS2).
• Delivery: This assessment is designed as a 'Ramp Test'. Section A focuses on the retrieval of Tier 3 terminology (e.g., Transpiration, Condensation). Section B shifts towards SATS-style reasoning, requiring students to interpret data and apply their understanding of permeable and impermeable surfaces.
• Scaffolding: For students working towards expected standards, consider providing a word bank for Q7 including terms such as 'impermeable', 'tarmac', 'saturated', and 'interception'.
• Misconception Alert: Ensure students understand that water vapour is an invisible gas; often, they confuse it with 'steam' or visible mist/clouds.

Section A Answers

Q1: b

Explanation: The Sun provides the thermal energy necessary to break the bonds between water molecules, driving evaporation.

Q2: d

Explanation: Condensation is the cooling of water vapour into liquid. (a) is the opposite process, (b) relates to plants, and (c) is the falling of water to Earth.

Q3: b

Explanation: On a warm afternoon, the puddle disappears because liquid water gains thermal energy and evaporates into the air. Infiltration (a) is unlikely on tarmac as it is an impermeable surface.

Q4: a

Explanation: Transpiration is a specific biological process within the water cycle. Students often confuse this with 'transportation' (the movement of water).

Q5: c

Explanation: Heating increases the kinetic energy of molecules, causing a phase change from liquid to gas (water vapour).

Section B Guidance

Q6 Guidance

• 1 Mark: Correct identification of the two figures (42mm and 5mm).
• 1 Mark: Correct calculation of the difference (37mm).
• Model Answer: "The difference is 37mm (42mm - 5mm = 37mm)."

Q7 Guidance

• 1 Mark: Identification of surface types (e.g., Urban areas have impermeable surfaces like tarmac/concrete).
• 1 Mark: Identification of natural features (e.g., Forests have permeable soil and vegetation).
• 1 Mark: Explanation of infiltration (e.g., In the forest, water can soak into the ground/roots).
• 1 Mark: Explanation of interception (e.g., Leaves in the forest catch rain before it hits the ground, slowing it down).
• Model Answer: "The Urban Town Centre has higher run-off because it is built with impermeable materials like tarmac and concrete, which do not allow water to soak into the ground. In contrast, the Wooded Forest has permeable soil and trees. The trees provide 'interception', catching the rain on leaves, while the soil allows for 'infiltration', where water is absorbed rather than flowing over the surface."

✅ Quality Assurance Audit

• Factual Accuracy: Matches UK NC Year 6 Geography requirements.
• Answer Key Integrity: All Section A/B answers are derived directly from the provided stimulus and Year 6 curriculum logic.
• Self-Containment: All data needed for Q6 and Q7 is contained within the provided Markdown table.
• Clean Checkbox Protocol: Checkboxes (☐) are used without bullet markers as per Constitution Section 4.
• MCQ Absolute Layout: All MCQs follow the vertical a) ☐ bolded formatting.