The document discusses key facts about our planet Earth. It begins by providing context about our solar system and universe. It then explains that Earth is the third planet from the sun and the only planet that supports life. The document goes on to describe how Earth formed from a hot cloud of gases and cooled over millions of years, developing a crust, mantle and core similar to an egg. Volcanoes are mentioned as openings where molten material from the core is forced out of the crust.

1. OUR PLANET - EARTH BY : ABHA ARORA

2. OUR SOLAR SYSTEM

3. THIS IS OUR UNIVERSE

5. SUN IS THE NEAREST STAR…….. IT IS 150 MILLION KILOMETERS AWAY.

17. This hot cloud of gases spun around for millions of years. As it spun , it slowly became cooler. And as it cooled , it hardened slightly and it surface became cooler.

19. HARDENING OF UPPER LAYER OF EARTH

20. Its surface began to wrinkle like a dried plum. The wrinkles became mountain ranges. Water from the rain settled in the low lying places to form oceans , seas , rivers and lakes

25. Oceanic and Continental Crust

33. The molten material thrown out is called Lava…while the hole in the center of the volcano is called a Crater.

34. THE END