Important questions class 7 science chapter 12 help students revise Earth, Moon and the Sun with exam-focused answers. This chapter explains rotation, revolution, seasons, solstice, equinox, solar eclipse, and lunar eclipse.
Earth, Moon and the Sun connects daily sky observations with scientific reasons. Students learn why day and night occur, why seasons change, why stars shift through the year, and why eclipses happen.
The Sun seems to move across the sky every day, but the Earth is actually rotating. This movement creates sunrise, sunset, day, and night.
Class 7 Science Chapter 12 also explains how Earth’s revolution and tilted axis cause seasons. The chapter then moves to eclipses, where the Sun, Earth, and Moon line up in special positions.
Key Takeaways
| Concept |
What Students Should Remember |
| Rotation |
Earth spins on its axis in about 24 hours |
| Direction of rotation |
Earth rotates from West to East |
| Day and night |
Caused by Earth’s rotation |
| Revolution |
Earth moves around the Sun in about 365 days and 6 hours |
| Orbit |
Path followed by Earth around the Sun |
| Pole Star |
Appears nearly fixed in the night sky |
| Seasons |
Caused by Earth’s tilt and spherical shape |
| Summer solstice |
Longest day in Northern Hemisphere, around 21 June |
| Winter solstice |
Shortest day in Northern Hemisphere, around 22 December |
| Equinox |
Day and night are almost equal |
| Solar eclipse |
Moon comes between Sun and Earth |
| Lunar eclipse |
Earth comes between Sun and Moon |
| Eclipse safety |
Never view a solar eclipse directly |
Overview of Important Questions Class 7 Science Chapter 12
Class 7 science chapter 12 important questions mainly test motion of Earth, day-night cycle, seasons, eclipses, and sky observations. Students should learn definitions, diagrams, and activity-based conclusions together.
This chapter is important because many questions are reasoning-based. Exams may ask why sunrise happens in the East, why Australia has summer in December, or why the Moon can block the Sun.
Important questions class 7 science chapter 12 for quick revision
Use these questions before revising the detailed answers:
- What is rotation?
- What is revolution?
- What causes day and night?
- Why does the Sun appear to rise in the East?
- Why does the Pole Star appear nearly fixed?
- Why do stars change through the year?
- What causes seasons?
- What are solstice and equinox?
- What is a solar eclipse?
- What is a lunar eclipse?
- Why is a solar eclipse unsafe to view directly?
- Why can the Moon cover the Sun during a solar eclipse?
Class 7 Science Important Questions for All Chapters
Important Topics in Class 7 Science Chapter 12
This chapter becomes easier when students study it in sequence. First, understand Earth’s rotation. Then move to revolution, seasons, and eclipses.
Each topic connects to an activity or diagram. Students should focus on the reason behind every observation.
Rotation of the Earth
Rotation is the spinning of Earth on its own axis. Earth completes one rotation in about 24 hours.
Earth rotates from West to East. This is why the Sun, Moon, and stars appear to move from East to West.
Revolution of the Earth
Revolution is the movement of Earth around the Sun. Earth completes one revolution in about 365 days and 6 hours.
The path followed by Earth around the Sun is called its orbit. Earth’s revolution helps explain changing constellations and seasons.
Day and night
Day and night occur because Earth rotates on its axis. The side facing the Sun has day, while the side away from the Sun has night.
Changing night sky
Different stars appear in different months because Earth changes its position during revolution. At night, Earth faces different directions in space.
Seasons
Seasons occur because Earth’s axis is tilted and Earth is spherical. These two factors change the angle and duration of sunlight received by different regions.
Eclipses
Eclipses occur when the Sun, Earth, and Moon come in one line. A solar eclipse happens when the Moon blocks sunlight from reaching Earth.
A lunar eclipse happens when Earth blocks sunlight from reaching the Moon.
Class 7 Science Chapter 12 Notes
Class 7 science chapter 12 notes should focus on definitions, dates, diagrams, and cause-effect relationships. This chapter becomes easy when students connect each event with Earth’s motion.
Students should remember these points:
- Rotation causes day and night.
- Revolution helps explain seasons and changing stars.
- Earth rotates from West to East.
- The Sun appears to move from East to West.
- The Pole Star appears nearly stationary.
- Seasons are not caused by distance from the Sun.
- Summer solstice occurs around 21 June.
- Winter solstice occurs around 22 December.
- Equinox occurs around 21 March and 23 September.
- A solar eclipse is unsafe to view directly.
- A lunar eclipse is safe to view with naked eyes.
Earth Moon and the Sun Class 7 Important Questions
Earth moon and the sun class 7 important questions often test definitions first. Students should answer these in one or two clear sentences.
Use exact science terms such as rotation, revolution, axis, orbit, eclipse, solstice, and equinox.
Q1. What is rotation?
Rotation is the spinning of an object on its own axis. Earth rotates on its axis in about 24 hours.
Q2. What is revolution?
Revolution is the movement of one object around another. Earth revolves around the Sun.
Q3. What causes day and night?
Day and night are caused by Earth’s rotation. The side facing the Sun has day, while the other side has night.
Q4. How long does Earth take to complete one rotation?
Earth takes about 24 hours to complete one rotation.
Q5. How long does Earth take to complete one revolution?
Earth takes about 365 days and 6 hours to complete one revolution around the Sun.
Q6. What is Earth’s axis?
Earth’s axis is an imaginary line passing through the North Pole and South Pole.
Q7. What is Earth’s orbit?
Earth’s orbit is the path followed by Earth while revolving around the Sun.
Q8. What is a solar eclipse?
A solar eclipse occurs when the Moon comes between the Sun and Earth.
Q9. What is a lunar eclipse?
A lunar eclipse occurs when Earth comes between the Sun and the Moon.
Q10. What is an equinox?
An equinox is a day when daytime and night-time are almost equal.
Earth Moon and the Sun Class 7 Questions and Answers
These earth moon and the sun class 7 questions and answers help students practise short-answer questions. The answers focus on reasons, not just facts.
Students should write cause-and-effect answers for this chapter. Most exam questions ask why an event happens.
Q1. Why does the Sun appear to rise in the East and set in the West?
Earth rotates from West to East. Because of this, the Sun appears to move in the opposite direction.
Q2. Why does sunrise happen earlier in eastern India?
Earth rotates from West to East. Eastern India faces the Sun before western India, so sunrise happens earlier there.
Q3. Why is it day in India when it may be night in the USA?
Earth is spherical and only one side faces the Sun at a time. India and the USA can be on opposite sides of Earth.
Q4. Why does the Pole Star appear nearly stationary?
Earth’s axis points close to the Pole Star. So it appears nearly fixed while other stars seem to move around it.
Q5. Why do different stars appear in different months?
Earth revolves around the Sun. As its position changes, the night side faces different directions in space.
Q6. Why are seasons not caused by Earth’s distance from the Sun?
The change in Earth’s distance from the Sun is too small. Seasons occur mainly due to Earth’s tilted axis and spherical shape.
Rotation and Revolution Class 7 Questions
Rotation and revolution class 7 questions are important because students often confuse these two motions. Rotation happens on an axis, while revolution happens around another object.
Both motions create different effects on Earth. Rotation causes day and night, while revolution helps explain seasons and changing stars.
Q1. What is the difference between rotation and revolution?
Rotation is Earth spinning on its own axis. Revolution is Earth moving around the Sun.
Q2. What does rotation cause?
Rotation causes day and night. It also makes the Sun, Moon, and stars appear to move across the sky.
Q3. What does revolution cause?
Revolution helps explain seasons and the changing view of stars. It works with Earth’s tilted axis.
Q4. In which direction does Earth rotate?
Earth rotates from West to East.
Q5. How does the merry-go-round activity explain apparent motion?
When a person turns in one direction, nearby objects appear to move in the opposite direction. Similarly, Earth’s rotation makes the Sun appear to move across the sky.
Seasons Solstice Equinox Class 7 Questions
Seasons solstice equinox class 7 questions are scoring topics because they connect diagrams, dates, and reasoning. Students should know the cause of seasons and key dates.
Seasons are caused by Earth’s axial tilt and spherical shape. They are not caused by Earth moving closer to or farther from the Sun.
Q1. What causes seasons on Earth?
Seasons are caused by Earth’s tilted axis and spherical shape. These affect the angle and duration of sunlight.
Q2. Why does the Northern Hemisphere have summer in June?
In June, the Northern Hemisphere tilts toward the Sun. It gets longer and more direct sunlight.
Q3. Why does the Northern Hemisphere have winter in December?
In December, the Northern Hemisphere tilts away from the Sun. It gets shorter and less direct sunlight.
Q4. Why are seasons opposite in India and Australia?
India is in the Northern Hemisphere, while Australia is in the Southern Hemisphere. When one hemisphere tilts toward the Sun, the other tilts away.
Q5. What is the summer solstice?
The summer solstice is the longest day of the year. In the Northern Hemisphere, it occurs around 21 June.
Q6. What is the winter solstice?
The winter solstice is the shortest day of the year. In the Northern Hemisphere, it occurs around 22 December.
Q7. What is an equinox?
An equinox is a day when day and night are almost equal. It occurs around 21 March and 23 September.
Q8. What would happen if Earth’s axis were not tilted?
There would be no strong seasons. Day and night would stay nearly equal throughout the year.
Solar Eclipse and Lunar Eclipse Class 7 Questions
Solar eclipse and lunar eclipse class 7 questions are important because they test alignment. Students should learn the order of the Sun, Earth, and Moon.
A solar eclipse is unsafe to view directly. A lunar eclipse is safe to view with naked eyes.
Q1. What is the arrangement during a solar eclipse?
The arrangement is Sun, Moon, and Earth. The Moon comes between the Sun and Earth.
Q2. What is the arrangement during a lunar eclipse?
The arrangement is Sun, Earth, and Moon. Earth comes between the Sun and Moon.
Q3. Why can the Moon block the Sun during a solar eclipse?
The Moon is much closer to Earth than the Sun. So it appears large enough to cover the Sun.
Q4. What is a total solar eclipse?
A total solar eclipse occurs when the Moon completely covers the Sun for observers in a small region.
Q5. What is a partial solar eclipse?
A partial solar eclipse occurs when only part of the Sun appears covered by the Moon.
Q6. What is a total lunar eclipse?
A total lunar eclipse occurs when the Moon is fully inside Earth’s shadow.
Q7. Why does the Moon look reddish during a total lunar eclipse?
Some sunlight bends through Earth’s atmosphere and reaches the Moon. This makes the Moon appear reddish.
Q8. Why should a solar eclipse not be viewed directly?
The Sun can damage the eyes even during an eclipse. Special solar eclipse goggles are needed.
Diagram-Based Questions on Earth, Moon and the Sun
Diagram-based questions test whether students understand positions and directions. They are common in this chapter because eclipses and seasons need visual understanding.
Students should label the Sun, Earth, Moon, axis, orbit, and shadow correctly.
Q1. Draw the arrangement for a solar eclipse.
The order should be Sun, Moon, and Earth. The Moon’s shadow falls on Earth.
Q2. Draw the arrangement for a lunar eclipse.
The order should be Sun, Earth, and Moon. Earth’s shadow falls on the Moon.
Q3. How should Earth’s axis be shown in a seasons diagram?
Earth’s axis should be shown tilted. The direction of tilt remains the same as Earth revolves.
Q4. What does the day-night diagram show?
It shows one half of Earth facing the Sun. That half has daytime, while the other half has night.
Q5. How can students show solstice in a diagram?
They can show one hemisphere tilted toward the Sun. That hemisphere receives longer daylight.
Class 7 Science Chapter 12 Question Answer Practice
This class 7 science chapter 12 question answer section helps students revise all core concepts together. These questions are useful for quick written practice.
Students should answer in short, clear points. This helps avoid confusion between similar terms.
Q1. Name the motion that causes day and night.
Rotation causes day and night.
Q2. Name the motion that takes about 365 days and 6 hours.
Revolution takes about 365 days and 6 hours.
Q3. What is the Pole Star also called?
The Pole Star is also called Dhruva Tara.
Q4. Why do stars appear to move from East to West?
They appear to move because Earth rotates from West to East.
Q5. What is a star trail?
A star trail is a curved path of stars seen in long-exposure photographs.
Q6. Which eclipse is safe to view with naked eyes?
A lunar eclipse is safe to view with naked eyes.
Q7. Which eclipse should never be viewed directly?
A solar eclipse should never be viewed directly.
Earth Moon and the Sun MCQ Class 7
These earth moon and the sun mcq class 7 questions help students revise facts quickly. They also test reasoning in objective format.
Q1. What causes day and night?
a) Revolution
b) Rotation
c) Eclipse
d) Solstice
Answer: b) Rotation
Q2. Earth rotates from:
a) East to West
b) North to South
c) West to East
d) South to North
Answer: c) West to East
Q3. Earth completes one revolution in about:
a) 24 hours
b) 30 days
c) 365 days and 6 hours
d) 12 hours
Answer: c) 365 days and 6 hours
Q4. The longest day in the Northern Hemisphere occurs around:
a) 21 June
b) 22 December
c) 21 March
d) 23 September
Answer: a) 21 June
Q5. The shortest day in the Northern Hemisphere occurs around:
a) 21 June
b) 22 December
c) 15 August
d) 1 January
Answer: b) 22 December
Q6. A solar eclipse occurs when:
a) Earth comes between Sun and Moon
b) Moon comes between Sun and Earth
c) Sun comes between Earth and Moon
d) Earth stops rotating
Answer: b) Moon comes between Sun and Earth
Q7. A lunar eclipse occurs when:
a) Earth comes between Sun and Moon
b) Moon comes between Sun and Earth
c) Sun comes between Earth and Moon
d) Moon disappears forever
Answer: a) Earth comes between Sun and Moon
Q8. Which eclipse is unsafe to view directly?
a) Lunar eclipse
b) Solar eclipse
c) Both are always safe
d) None
Answer: b) Solar eclipse
Q9. The Pole Star appears nearly fixed because:
a) it is the biggest star
b) it is nearest to Earth
c) Earth’s axis points near it
d) it does not shine
Answer: c) Earth’s axis points near it
Q10. Seasons are mainly caused by:
a) Earth’s distance from the Sun
b) Moon’s movement
c) Earth’s tilted axis and spherical shape
d) solar eclipse
Answer: c) Earth’s tilted axis and spherical shape
Earth Moon and the Sun Extra Questions and Answers
These earth moon and the sun extra questions and answers help students practise higher-order thinking. They are useful for 3-mark and reasoning questions.
Students should connect each answer with the correct motion or alignment. This improves exam accuracy.
Q1. Why does a person in India see sunrise before a person in Gujarat?
Eastern regions face the Sun earlier because Earth rotates from West to East. So sunrise occurs earlier in eastern India than in western India.
Q2. Why do stars seem to circle around the Pole Star?
Earth’s axis points close to the Pole Star. As Earth rotates, other stars appear to move around it.
Q3. Why does Australia have summer when India has winter?
Australia lies in the Southern Hemisphere. In December, the Southern Hemisphere tilts toward the Sun, so it has summer.
Q4. Why do places near the equator have less seasonal change?
They receive nearly direct sunlight throughout the year. Their day length also changes less across seasons.
Q5. Why is a total solar eclipse visible only from a small region?
The Moon’s shadow covers only a small area on Earth. Only places in that shadow see a total solar eclipse.
Q6. Why can many regions see a lunar eclipse?
Earth’s shadow is large and falls on the Moon. Any place where the Moon is visible can see the lunar eclipse.
Q7. What would happen if Earth stopped rotating?
The normal day-night cycle would stop. One side could face the Sun for a long time, while the other stays dark.
Most Important Questions from Chapter 12 for 2026 Exams
Use these questions for final revision. They cover the most expected exam topics from the chapter.
Q1. State the difference between rotation and revolution.
Q2. What causes day and night on Earth?
Q3. Why does the Sun appear to rise in the East?
Q4. Why does sunrise happen earlier in eastern India?
Q5. Why does the Pole Star appear nearly fixed?
Q6. Why do different stars appear in different months?
Q7. What causes seasons on Earth?
Q8. Why are seasons opposite in India and Australia?
Q9. What is summer solstice?
Q10. What is winter solstice?
Q11. What is an equinox?
Q12. Differentiate between solar eclipse and lunar eclipse.
Q13. Why should we not view a solar eclipse directly?
Q14. Why can the Moon cover the Sun during a solar eclipse?
Common Mistakes in Class 7 Science Chapter 12
Students often lose marks because they mix up similar concepts. These quick corrections help avoid common errors.
Mistake 1: Mixing rotation and revolution
Rotation means spinning on an axis. Revolution means moving around another object.
Mistake 2: Saying revolution causes day and night
Day and night are caused by rotation, not revolution.
Mistake 3: Saying seasons happen because Earth is closer to the Sun
Seasons occur due to Earth’s tilted axis and spherical shape.
Mistake 4: Confusing eclipse arrangements
Solar eclipse: Sun, Moon, Earth. Lunar eclipse: Sun, Earth, Moon.
Mistake 5: Viewing a solar eclipse directly
A solar eclipse can damage the eyes. It should never be viewed without proper solar eclipse goggles.
Mistake 6: Thinking the Moon produces its own light
The Moon does not produce light. It reflects sunlight.
Mistake 7: Forgetting equinox dates
Equinox occurs around 21 March and 23 September.
Quick Revision Checklist
Use this checklist before your Science exam.
- I can define rotation.
- I can define revolution.
- I can explain day and night.
- I can state Earth’s direction of rotation.
- I can explain why the Sun appears to rise in the East.
- I can explain why stars change through the year.
- I can explain why the Pole Star appears fixed.
- I can state what causes seasons.
- I can explain solstice and equinox.
- I can draw solar and lunar eclipse arrangements.
- I can explain why solar eclipses are unsafe to view directly.
- I can solve MCQs from this chapter.