Grade 2, Science Olympiad (CBSE) - Solar system
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Grade 2 | Science | Solar system, Earth and Universe, Olympiad, CBSE, ICSE, Maths Olympiad, Science Olympiad, English Olympiad
Solar System
Our solar system consists of many objects like the Sun, planets, satellite, asteroid, Metroid, dust and gaseous. Sun is the center of our solar system and objects are moving around it.
Our solar system is the part of the Milkyway
galaxy. The solar system consists of eight planets, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.
Inner planet: Mercury, Venus, Earth and Mars.
Outer planet: Jupiter, Saturn, Uranus and Neptune.
Asteroid belt: It is the space between Mars and Jupiter where number rocks are moving around the sun in orbit. Asteroid belt divides planets into inner planets which are closest to the sun and outer planets farthest from the sun.
The Sun
?Inside the sun there is a number of the hot gaseous explosion is taking place continuously, because of which it is called a hot ball of gaseous.
- Sun is a star.
- Sun is 100 times bigger than the earth.
- Sun gives us heat and light.
- Sunlight reaches from Sun to Earth in 8 minutes.
Importance of sun on earth
- It gives heat and light to the earth.
- we use sunlight in various things like cooking, boiling water for bathing, drying clothes, etc.
- It helps in killing germs.
- It is a great source of vitamin D.
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