SCIENCE

MATTER

Matter  It is something which has mass, occupy space and and can be realized by the sense organs. CHARACTERISTICS OF MATTER:  Made up of very small particles (unimaginable).  Inter-molecular space  They posses kinetic energy (continuously moving)  Intermolecular force (attract each other at varying degree on the basis of matter) PARTICLES …

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LIFE ON EARTH

PRE-LIFE EVENTS   The universe formed probably 12 to 14 billion years ago (Big Bang)   solar system came into existence 5-7 billion years ago  Initial stages of formation (4.5 bya) (impacted by another planet – caused spin and tilt)  For nearly 700 million years – frequent and catastrophic bombardment by meteorites of …

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