You will learn
- Answer the question with evidence.
- State whether the hypothesis is supported.
- Explain the result.
- Note limitations.
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
- A conclusion answers the question.
- It uses data as evidence.
- It says if the hypothesis was supported.
- It notes limitations and improvements.
Words to know
what the evidence shows
the data that support a claim
something that weakens confidence
to judge how good the investigation was
1. Discover: The sugar test
Abena finds sugar dissolved in 40 s in warm water and 95 s in cold water. She writes: “Warm water dissolved sugar more than twice as fast. My hypothesis is supported. This may be because particles move faster when warm. I only tested once, so I would repeat it.”
Think: Which part of her conclusion is evidence and which is explanation?
2. Understand: Conclusions
Idea 1: Answer
A conclusion answers the original question and uses evidence: “Warm water dissolved sugar in 40 s, cold in 95 s.”
Idea 2: Hypothesis
State whether the hypothesis was supported or not and explain why using science ideas, such as faster-moving particles.
Idea 3: Limits
Mention a limitation, such as few repeats, and say how to improve. This is how scientists evaluate investigations.
3. Worked examples
Example 1 (I show you): Write
Answer.
- Restate question.
- Use data.
- Direction.
Answer: Warm was faster.
Example 2 (We do it together): Explain
Why.
- Particles.
- Faster.
- More collisions.
Answer: Science link.
Example 3 (You try): Evaluate
Limit.
Show the steps and answer
- Few repeats.
- Improve.
- Reliable.
Answer: More repeats.
Did you know?
Scientists publish limitations so other researchers can build on or challenge their work.
Why this matters
A good conclusion shows what we learned and how sure we are.
4. Explore: Write it up
Use your own results to write a conclusion with an answer, evidence, an explanation and one limitation.
- Restate the question.
- Quote the data.
- Say if supported.
- Add a limitation.
Think about it: what did you notice?
What did you notice? Numbers made the conclusion stronger.
5. Practise
Say it in a sentence
Use these starters when you talk about the lesson. Say them out loud.
- A ___ is what the evidence shows.
- ___ is data that support a claim.
- A ___ weakens confidence.
- To ___ is to judge how good the investigation was.
Guided practice
Question 1. What is a conclusion?
What evidence shows.
Question 2. What is evidence?
Data.
Question 3. What is a limitation?
Weakness.
Independent practice
Level 1: Start
- What is a conclusion?
- What is evidence?
- What is a limitation?
- What does evaluate mean?
- What must it answer?
Level 2: Grow
- Why numbers?
- Why limits?
- Why explain?
Level 3: Stretch
- Write.
- Check.
- Improve.
Answers are in the answer key below. Try first, then check.
6. Apply: Science in everyday life
Write a conclusion for the sugar test.
Show a sample answer
Include data and a limitation.
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: Use data.
Fix: Maybe not.
8. Lesson summary and revision card
- I can answer the question with evidence.
- I can state whether the hypothesis is supported.
- I can explain the result.
- I can note limitations.
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
- A conclusion answers the question.
- It uses data as evidence.
- It says if the hypothesis was supported.
- It notes limitations and improvements.
11. Next lesson
Next lesson: Scientific reporting. 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 conclusion and limitation. [2 marks]
- Write a conclusion for 40 s warm and 95 s cold. [4 marks]
- Suggest two improvements. [2 marks]
- Explain why limitations are useful. [2 marks]
Total: 10 marks.
Marking guide and model answers
- 1 each
- Answer [1]; data [1]; hypothesis [1]; explanation [1]
- 1 each
- Honest [1]; guides improvement [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 a conclusion?
- What is evidence?
- What is a limitation?
- What does evaluate mean?
- What must it answer?
- Why numbers?
- Why limits?
- Why explain?
- Write.
- Check.
Homework
Write a conclusion for a simple test you did.
Answer key and marking scheme
| Question | Expected response | Marks |
|---|---|---|
| 1. What is a conclusion? | What evidence shows. | 1 |
| 2. What is evidence? | Data. | 1 |
| 3. What is a limitation? | Weakness. | 1 |
| 4. What does evaluate mean? | Judge. | 1 |
| 5. What must it answer? | The question. | 1 |
| 6. Why numbers? | Strong. | 1 |
| 7. Why limits? | Honest. | 1 |
| 8. Why explain? | Understand. | 1 |
| 9. Write. | Paragraph. | 1 |
| 10. Check. | Checklist. | 1 |
| Total | 10 |
Independent practice answers. Level 1: 1 What evidence shows.; 2 Data.; 3 Weakness.; 4 Judge.; 5 The question.. Level 2: 1 Strong.; 2 Honest.; 3 Understand.. Level 3: 1 Paragraph.; 2 Checklist.; 3 Sentence..
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 Answer the question with evidence | 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 State whether the hypothesis is supported | 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 Explain the result | 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 Note limitations | 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: “A conclusion can ignore the data.” Use data.
- Explain another way: use real objects, pictures or actions first, then words.
- Show a simpler example: Write an evidence-based conclusion.
- 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 writes a conclusion. You do not need to be an expert to help.
- Ask “What did you find out?”
- Ask “How do you know?”
- Praise honesty.
- 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: answer the question with evidence; state whether the hypothesis is supported; explain the result; note limitations.
Prerequisite knowledge. Grade 5 ideas: fair tests, repeating measurements, recording data and drawing conclusions.
Materials. Results tables, paper. 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. Hand out sentence starters.
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). Present data and ask, “What does this tell us?”
Explanation (10 min). Teach conclusions.
Guided activity (10 min). Learners write.
Independent activity (10 min). Learners evaluate.
Assessment and reflection (5 min). Ask each learner to say one thing they learned and how they know it.
Key questions. What does the data show? How sure are we?
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. “A conclusion can ignore the data.” Use data.
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. Write an evidence-based conclusion. 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 6 Unit 1, topic 9; Next Generation Science Standards, science and engineering practices; Cambridge Lower Secondary Science, thinking and working scientifically; IB Primary Years Programme, how we express ourselves and how the world works. These sources informed the lesson.