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ATP EducationScience Curiosity Notes Class 6 English Medium 2026-27
Science Curiosity Notes Class 6 English Medium 2026-27 now available for students studying in cbse school, up board, state boards and international cbse schools and Latest CBSE Curriculum based on NCERT books.
Science Curiosity Notes Class 6 English Medium 2026-27
All topics of Chapter 12
1. CBSE Notes - Key Points 2. CBSE Full Notes 3. Assignments - What Have You Learned?Science Curiosity Chapter 12. Beyond Earth
CBSE Notes New Syllabus: Class 6
Assignments - What Have You Learned?
Chapter 12. Beyond Earth
These CBSE Notes – Key Points are prepared according to the latest NCERT Curiosity textbook and the latest CBSE competency-based pattern. They provide a quick revision of important concepts, scientific terms, celestial objects, and the Solar System covered in this chapter.
CBSE Notes – Key Points
These notes are useful for quick revision before examinations. Read the important definitions, keywords, tables, and scientific facts carefully to strengthen your understanding of the chapter.
Important Keywords
The following keywords are frequently used in this chapter and should be remembered carefully.
| Keyword | Meaning |
|---|---|
| Astronomy | The scientific study of celestial objects and the Universe. |
| Celestial Body | A natural object found in space. |
| Star | A self-luminous ball of hot gases. |
| Planet | A celestial body that revolves around the Sun. |
| Satellite | A body that revolves around a planet. |
| Constellation | A group of stars forming a recognizable pattern. |
| Galaxy | A huge collection of stars, gas, dust, and planets. |
| Asteroid | A small rocky body revolving around the Sun. |
| Comet | An icy celestial body that develops a tail near the Sun. |
| Astronomical Unit (AU) | The average distance between the Earth and the Sun. |
Important Facts About Stars
Stars are enormous celestial bodies that produce their own heat and light.
- The Sun is the nearest star to Earth.
- Stars appear to twinkle because of Earth's atmosphere.
- Stars are much larger than planets.
- Different stars have different brightness.
- Stars are extremely far away from Earth.
Constellations
Constellations are groups of stars that appear to form fixed patterns in the night sky.
| Constellation | Special Feature |
|---|---|
| Orion | Known as The Hunter. |
| Ursa Major | Contains the Big Dipper pattern. |
| Ursa Minor | Contains the Pole Star. |
Pole Star
The Pole Star appears almost fixed in the northern sky and is useful for finding directions.
- Also called Polaris.
- Known as Dhruva Tara in India.
- Helps identify the north direction.
- Used for navigation since ancient times.
The Sun
The Sun is the centre of the Solar System and the ultimate source of energy for Earth.
| Feature | Description |
|---|---|
| Type | Star |
| Position | Centre of the Solar System |
| Main Function | Provides heat and light |
| Importance | Supports all life on Earth |
The Solar System
The Solar System consists of the Sun and all celestial bodies that revolve around it.
- Sun
- Eight planets
- Natural satellites
- Asteroids
- Comets
- Dwarf planets
Order of the Planets
The planets are arranged according to their distance from the Sun.
| Order | Planet | Nickname |
|---|---|---|
| 1 | Mercury | Nearest to the Sun |
| 2 | Venus | Morning/Evening Star |
| 3 | Earth | Blue Planet |
| 4 | Mars | Red Planet |
| 5 | Jupiter | Largest Planet |
| 6 | Saturn | Planet with Rings |
| 7 | Uranus | Ice Giant |
| 8 | Neptune | Farthest Planet |
Stars and Planets
Stars and planets differ in several important ways.
| Stars | Planets |
|---|---|
| Produce their own light. | Reflect sunlight. |
| Appear to twinkle. | Usually do not twinkle. |
| Very hot. | Comparatively cooler. |
| Made mainly of hot gases. | Rocky or gaseous bodies. |
Asteroids and Comets
Asteroids and comets are small celestial bodies found in the Solar System.
| Asteroids | Comets |
|---|---|
| Rocky objects. | Made of ice, dust, and rocks. |
| Mainly found between Mars and Jupiter. | Develop a bright tail near the Sun. |
Galaxy and Universe
Our Solar System is a tiny part of the Milky Way Galaxy, which itself is only one among billions of galaxies in the Universe.
- The Milky Way is our home galaxy.
- The Universe contains billions of galaxies.
- Each galaxy contains millions or billions of stars.
Light Pollution
Excessive artificial lighting reduces the visibility of stars in the night sky.
- Makes astronomical observations difficult.
- Reduces the number of visible stars.
- Dark places are better for sky watching.
Important Scientific Terms
Remember these scientific terms for examinations.
| Scientific Term | Meaning |
|---|---|
| Polaris | The Pole Star. |
| Milky Way | Our home galaxy. |
| Orbit | The fixed path followed by a planet or satellite. |
| Celestial Object | Any natural object present in space. |
| Light Pollution | Excess artificial light affecting sky observation. |
Important Facts
Remember these facts for examinations.
- The Sun is the nearest star to Earth.
- Earth is the only known planet that supports life.
- Mercury is the nearest planet to the Sun.
- Neptune is the farthest planet from the Sun.
- Jupiter is the largest planet.
- Saturn is famous for its rings.
- The Moon is Earth's natural satellite.
- Most asteroids are found between Mars and Jupiter.
- Comets develop a tail when they approach the Sun.
- The Milky Way is our home galaxy.
Quick Revision
Revise the following points before your examination.
- Astronomy is the study of celestial objects.
- Stars produce their own light.
- Planets reflect sunlight.
- Constellations help identify regions of the sky.
- The Pole Star indicates the north direction.
- The Solar System has eight planets.
- Asteroids are rocky bodies.
- Comets develop bright tails near the Sun.
- The Milky Way contains our Solar System.
- The Universe is made up of billions of galaxies.