science

science

1. Particle model

   • 3 states of matter
     • solid
     • liquid
     • gas

2. Drag

   • water resistance
   • air resistance

3. air pressure

   • water pressure
     • as you go deeper under the water the pressure gets stronger so the water particles crush you
   • altitude

4. earths atmosphere

   • oxygen 21%
   • nitrogen 78%
   • carbon dioxide, helium, argon other gases 1%

5. density

   • the amount of mass that one cubic centimetre of a substance has.often measured ing grams per centimetre (g/cm3).

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