You will learn
- Explain the cause of seasons.
- Describe solstices and equinoxes.
- Compare hemispheres.
- Correct misconceptions.
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
- Earth’s axis is tilted 23.5°.
- Tilt changes sunlight angle and day length.
- Hemispheres have opposite seasons.
- Distance does not cause seasons.
Words to know
the angle of Earth’s axis, 23.5°
the day with the longest or shortest daylight
a day when day and night are about equal
half of Earth
1. Discover: Two birthdays, two seasons
Ngozi’s cousin in Australia has a birthday in December and goes swimming in summer. “Your December is cool and dry,” he jokes, “mine is hot!” Ms Quartey explains: “It is the tilt of Earth, not the distance from the Sun.”
Think: What happens to the seasons in the two hemispheres in June?
2. Understand: Tilt
Idea 1: Tilt
Earth’s axis is tilted 23.5° and keeps pointing the same way as Earth orbits. So the northern hemisphere leans toward the Sun in June and away in December.
Idea 2: Why warmer
Leaning toward the Sun gives more direct sunlight and longer days, so it is warmer: summer. Leaning away gives slanted sunlight and shorter days: winter. Opposite things happen in the other hemisphere.
Idea 3: Key dates
Solstices (about 21 June and 21 December) have the longest and shortest daylight. Equinoxes (about 21 March and 23 September) have about equal day and night. Near the equator seasons are wet and dry.
3. Worked examples
Example 1 (I show you): Predict
June.
- North.
- South.
- Opposite.
Answer: Summer and winter.
Example 2 (We do it together): Explain
Why warmer.
- Direct light.
- Longer day.
- More heat.
Answer: Summer.
Example 3 (You try): Correct
Distance myth.
Show the steps and answer
- January closest.
- Winter north.
- Tilt.
Answer: Tilt.
Did you know?
Without a tilt there would be no seasons; Earth would have the same weather all year in each place.
Why this matters
Seasons guide planting, harvest, festivals and animal migration.
4. Explore: Tilt lamp model
Use a battery torch and a tilted globe. Shine the torch on the northern hemisphere at four positions around it and compare the light patch size.
- Tilt the globe.
- Shine from the side.
- Move around.
- Compare.
Think about it: what did you notice?
What did you notice? The patch was more concentrated when the hemisphere leaned toward the torch.
5. Practise
Say it in a sentence
Use these starters when you talk about the lesson. Say them out loud.
- ___ tilt is 23.5°.
- A ___ is the longest or shortest day.
- An ___ has equal day and night.
- A ___ is half of Earth.
Guided practice
Question 1. Tilt angle?
23.5°.
Question 2. June north?
Summer.
Question 3. Equinox?
Equal.
Independent practice
Level 1: Start
- Tilt angle?
- June north?
- Equinox?
- Solstice?
- Cause?
Level 2: Grow
- Why warmer?
- Why opposite?
- Why not distance?
Level 3: Stretch
- Model seasons.
- Compare.
- Explain.
Answers are in the answer key below. Try first, then check.
6. Apply: Science in everyday life
Explain why the hemispheres have opposite seasons.
Show a sample answer
Use tilt.
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: Tilt.
Fix: Wet and dry.
8. Lesson summary and revision card
- I can explain the cause of seasons.
- I can describe solstices and equinoxes.
- I can compare hemispheres.
- I can correct misconceptions.
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
- Earth’s axis is tilted 23.5°.
- Tilt changes sunlight angle and day length.
- Hemispheres have opposite seasons.
- Distance does not cause seasons.
11. Next lesson
Next lesson: Moon phases. 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 solstice and equinox. [2 marks]
- Explain what causes seasons. [3 marks]
- Explain opposite hemispheres. [3 marks]
- Safety rule. [2 marks]
Total: 10 marks.
Marking guide and model answers
- 1 each
- Tilt [1]; sunlight angle [1]; day length [1]
- Leans toward [1]; leans away [1]; opposite [1]
- Any [1]; reason [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
- Tilt angle?
- June north?
- Equinox?
- Solstice?
- Cause?
- Why warmer?
- Why opposite?
- Why not distance?
- Model seasons.
- Compare.
Homework
Compare the seasons in your country with one in the other hemisphere.
Answer key and marking scheme
| Question | Expected response | Marks |
|---|---|---|
| 1. Tilt angle? | 23.5°. | 1 |
| 2. June north? | Summer. | 1 |
| 3. Equinox? | Equal. | 1 |
| 4. Solstice? | Extreme. | 1 |
| 5. Cause? | Tilt. | 1 |
| 6. Why warmer? | Direct light. | 1 |
| 7. Why opposite? | Hemisphere. | 1 |
| 8. Why not distance? | January. | 1 |
| 9. Model seasons. | Photo. | 1 |
| 10. Compare. | Table. | 1 |
| Total | 10 |
Independent practice answers. Level 1: 1 23.5°.; 2 Summer.; 3 Equal.; 4 Extreme.; 5 Tilt.. Level 2: 1 Direct light.; 2 Hemisphere.; 3 January.. Level 3: 1 Photo.; 2 Table.; 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 Explain the cause of seasons | 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 Describe solstices and equinoxes | 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 Compare hemispheres | 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 Correct misconceptions | 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: “Seasons come from distance from the Sun.” Tilt.
- Explain another way: use real objects, pictures or actions first, then words.
- Show a simpler example: Explain seasons.
- 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 the seasons. You do not need to be an expert to help.
- Notice the seasons.
- Ask “Why do they change?”
- Use a torch safely.
- 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: explain the cause of seasons; describe solstices and equinoxes; compare hemispheres; correct misconceptions.
Prerequisite knowledge. Grade 5 ideas: the Solar System, the Sun, Earth and Moon motions and models.
Materials. Globe, battery torch, tape. 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. Darken the room.
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). Ask, “Why is it summer in Australia in December?”
Explanation (10 min). Teach tilt.
Guided activity (10 min). Learners model.
Independent activity (10 min). Learners explain.
Assessment and reflection (5 min). Ask each learner to say one thing they learned and how they know it.
Key questions. What causes seasons? Why opposite?
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. “Seasons come from distance from the Sun.” Tilt.
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 seasons. 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 9, topic 8; Next Generation Science Standards, Earth’s place in the universe; Cambridge Lower Secondary Science, Earth and space; IB Primary Years Programme, where we are in place and time. These sources informed the lesson.