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Wel come PowerPoint Presentation

Wel come

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Wel come

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Presentation Transcript

  1. Welcome science

  2. CELL :The Unit of Life

  3. Cll as a besic unit of life • Robert hook was discovered cell . • In year 1665 • When he observe thin slice of crock under his designed microscope .

  4. World of matter Solid , liquid & gases

  5. solid • Solid have definite shape . • Solid have definite mass & volume . • Solids s are rigid . • Solids areelastic . • Solid can quite strong .

  6. LIQUID Liquids liquid have definite volume liquids do not have definite shape Liquid cannot compressed easily

  7. Historical background • Rishi Kanad • Rishikakanadin 6th century b.c said to that every object is made up of indivisible tiney particles