You will learn
- Describe how water moves in soil.
- Compare soil types.
- Measure water held.
- Link drainage to floods.
Version 0.2 · expanded edition · built from cited public sources Content is based on the official frameworks and sources listed under Sources and standards. No official endorsement is claimed. Written in the style of common primary school assessments. No exam result is promised.
Student lesson
- Water soaks in or runs off.
- Sandy soil lets water in fast.
- Clay soil can become waterlogged.
- Groundwater stores water underground.
Words to know
water soaking into the ground
water flowing over the surface
soaked so no air remains
water stored under the ground
1. Discover: The flood puddle
After heavy rain, a clay field has pools of water that stay for days. A nearby sandy field is dry in an hour. “Water soaks in fast on sand,” the farmer says. “On clay it sits and can drown the roots.”
Think: Why does the clay field flood?
2. Understand: Water in soil
Idea 1: Soaking in
When it rains, water can soak in (infiltration) or flow over the surface as runoff. Sandy soil lets water in quickly; clay slowly.
Idea 2: Holding water
Soil that cannot drain becomes waterlogged and roots cannot get air. Soil with humus holds water well and drains well.
Idea 3: Underground
Water that sinks far down becomes groundwater. People dig wells to reach it.
3. Worked examples
Example 1 (I show you): Soak
Sandy soil.
- Fast.
- Soaks in.
- Infiltration.
Answer: Sand lets water in fast.
Example 2 (We do it together): Run
Clay.
- Slow.
- Runoff.
- Flood risk.
Answer: Clay causes more runoff.
Example 3 (You try): Store
Wells.
Show the steps and answer
- Groundwater.
- Underground.
- Dig.
Answer: Wells reach groundwater.
Did you know?
Groundwater supplies drinking water to billions of people.
Why this matters
Knowing how water moves in soil helps prevent floods and plan farms.
4. Explore: Pour test
Pour measured water through soils.
- Use funnels with sandy, clay and loam.
- Pour 100 ml in each.
- Collect water that drains.
- Compare amounts and times.
Think about it: what did you notice?
What did you notice? Sandy soil passed most water, clay held it.
5. Practise
Say it in a sentence
Use these starters when you talk about the lesson. Say them out loud.
- Water soaking in is ___.
- Water over the surface is ___.
- ___ soil drains fast.
- ___ is stored underground.
Guided practice
Question 1. What is infiltration?
Soaking in.
Question 2. What is runoff?
Flowing over the surface.
Question 3. What is groundwater?
Water underground.
Independent practice
Level 1: Start
- What is infiltration?
- What is runoff?
- What is groundwater?
- Which soil drains fast?
- What is waterlogged?
Level 2: Grow
- Why do wells work?
- Why waterlogging harms roots?
- Why test soils?
Level 3: Stretch
- Run the pour test.
- Graph volumes.
- Explain results.
Answers are in the answer key below. Try first, then check.
6. Apply: Science in everyday life
Where have you seen runoff?
Show a sample answer
Roads after rain.
Another one. Tell a family member one thing from this lesson. Use the words you learned.
Show a sample answer
A clear sentence that uses at least one word from Words to know.
7. Common mistakes
Fix: It soaks in.
Fix: It is in rock and soil.
8. Lesson summary and revision card
- I can describe how water moves in soil.
- I can compare soil types.
- I can measure water held.
- I can link drainage to floods.
9. Check and master
Answer all 14 questions. You will see feedback after each one.
Your result appears here after you answer every question.
10. Key takeaways
- Water soaks in or runs off.
- Sandy soil lets water in fast.
- Clay soil can become waterlogged.
- Groundwater stores water underground.
11. Next lesson
Next lesson: Soil erosion. Keep going with the next idea in this course.
Exam practice
These questions are written in the style of common school and international primary assessments. Try them on your own, without looking back. Then check your answers in the marking guide. The marks are shown in brackets.
- Define infiltration and runoff. [2 marks]
- Describe the pour test. [3 marks]
- Why does clay flood? [3 marks]
- What is groundwater? [1 mark]
- Safety rule? [1 mark]
Total: 10 marks.
Marking guide and model answers
- Infiltration [1]; runoff [1]
- Equal water [1]; collect [1]; compare [1]
- Slow drain [1]; runoff [1]; waterlogging [1]
- Water underground [1]
- Any [1]
Score guide: 9 to 10 = secure. 6 to 8 = nearly there, revise the parts you missed. Under 6 = work through the lesson again with a grown-up.
Printable worksheet
- What is infiltration?
- What is runoff?
- What is groundwater?
- Which soil drains fast?
- What is waterlogged?
- Why do wells work?
- Why waterlogging harms roots?
- Why test soils?
- Run the pour test.
- Graph volumes.
Homework
Pour a cup of water on soil in a pot and note how long it takes to soak in.
Answer key and marking scheme
| Question | Expected response | Marks |
|---|---|---|
| 1. What is infiltration? | Soaking in. | 1 |
| 2. What is runoff? | Flowing over the surface. | 1 |
| 3. What is groundwater? | Water underground. | 1 |
| 4. Which soil drains fast? | Sandy. | 1 |
| 5. What is waterlogged? | Soaked, no air. | 1 |
| 6. Why do wells work? | Reach groundwater. | 1 |
| 7. Why waterlogging harms roots? | No air. | 1 |
| 8. Why test soils? | Compare. | 1 |
| 9. Run the pour test. | Table. | 1 |
| 10. Graph volumes. | Graph. | 1 |
| Total | 10 |
Independent practice answers. Level 1: 1 Soaking in.; 2 Flowing over the surface.; 3 Water underground.; 4 Sandy.; 5 Soaked, no air.. Level 2: 1 Reach groundwater.; 2 No air.; 3 Compare.. Level 3: 1 Table.; 2 Graph.; 3 Paragraph..
Quiz answers: 1 B, 2 C, 3 A, 4 B, 5 C, 6 A, 7 B, 8 C, 9 A, 10 B, 11 C, 12 A, Challenge 1 B, Challenge 2 C.
Mastery and remediation
| Objective | Bronze (Developing) | Silver (Proficient) | Gold (Advanced) |
|---|---|---|---|
| O1 Describe how water moves in soil | Shows this with help from an adult or a picture | Does this independently and explains how they know | Explains it clearly and uses it in a new situation |
| O2 Compare soil types | Shows this with help from an adult or a picture | Does this independently and explains how they know | Explains it clearly and uses it in a new situation |
| O3 Measure water held | Shows this with help from an adult or a picture | Does this independently and explains how they know | Explains it clearly and uses it in a new situation |
| O4 Link drainage to floods | Shows this with help from an adult or a picture | Does this independently and explains how they know | Explains it clearly and uses it in a new situation |
Courseversity badge thresholds (overall quiz score): Gold = 90–100%; Silver = 80–89.9%; Bronze = 70–79.9%. A badge is never a full record of progress.
If a learner struggles
- Find the misconception: “Water stays on top of soil.” It soaks in.
- Explain another way: use real objects, pictures or actions first, then words.
- Show a simpler example: Explain how water moves through soils.
- Guided practice: work through one example together and let the learner try the next one.
- Reassess: use the quiz again or the worksheet.
- Move on when the learner shows Silver-level evidence independently.
For parents and guardians
In this lesson your child studies water moving through soil. You do not need to be an expert to help.
- Pour water on soil.
- Ask, “How fast?”
- Wipe spills.
- Ask “how do you know?” after each answer, and listen.
- Praise effort, not only right answers. Mistakes are how we learn.
- Ten to fifteen minutes a day is better than one long session.
Teacher package
1–5. Objectives, prerequisites, materials, preparation, duration
Lesson objectives. Learners will: describe how water moves in soil; compare soil types; measure water held; link drainage to floods.
Prerequisite knowledge. Grade 2 Earth ideas: weather, seasons, and the materials found on Earth such as water, air and soil.
Materials. Funnels, soils, cups, water, timers. Low-resource options: use chalk or charcoal on a board or wall, drawings in the sand, and objects from the classroom instead of printed materials.
Preparation. Prepare funnels.
Suggested duration. 45–60 minutes. It can be split into two shorter sessions.
6–9. Teaching procedure, explanation notes, guided and independent activities
Introduction (5 min). Pour water on dry soil and ask, “Where did it go?”
Explanation (10 min). Teach water in soil.
Guided activity (10 min). Learners test.
Independent activity (10 min). Learners compare.
Assessment and reflection (5 min). Ask each learner to say one thing they learned and how they know it.
Key questions. Where did the water go? Which soil drained fastest?
Teacher explanation notes. Start with real objects and safe, hands-on observation. Then talk about what was seen, then draw and write. Always say “how do you know?”. Keep to the safety notes, and use local, safe materials.
10–12. Differentiation, formative assessment, common misconceptions
Support. Use real objects and pictures, short sentences and a partner. Let learners point, show or draw instead of writing. Extension. Ask learners to find a new example at home and explain how they know.
Formative assessment. Listen to learners read and explain, ask “how do you know?”, and check the independent work.
Misconceptions. “Water stays on top of soil.” It soaks in.
13–15. Assessment questions, answer keys, marking scheme
Use the quiz, the 10-mark exam practice and the worksheet on this page. All answers and marking guides are in the answer sections above. Re-check every answer before use.
16–19. Remediation, enrichment, homework, teacher reflection
Remediation. Explain how water moves through soils. Enrichment. Look for one new example near your home or school, draw it and explain it to someone. Homework. See above.
Teacher reflection. After teaching, record: which ideas learners understood; which misconceptions occurred; which activities worked; which learners need more practice; and what to improve next time.
Sources and standards
This lesson is based on the sources below, and no official endorsement is claimed. Reference starting points: Next Generation Science Standards, Cambridge Primary Science and the IB Primary Years Programme. Where a standard code is named, it points to the official framework.
Research used to shape this lesson. Courseversity Science curriculum, Grade 3 Unit 7, topic 8; Next Generation Science Standards, Earth materials and processes; Cambridge Primary Science Stage 3, rocks and soils; IB Primary Years Programme, sharing the planet. These sources informed the lesson.