chemistry

chemistry

1. STATES OF MATTER

   • liquid
     • quite close particles
       • bonds weaker than solids bonds
         • fixed volume
           • no shape
             • less dense than a solid
         • can not be squashed
           • flow
   • solid
     • particles are very close
       • can not be squashed
     • strong bonds
     • do not flow
       • dense
       • fixed shape and volume
   • gas
     • very spread out particles
       • no bonds
     • you can squash
       • flow easily
       • no fixed volume or shape
     • not dense

2. volume

   • the amount of space something takes up

3. particles

   • everything is made of them

4. A theory is used to explain a observations

   • observations are collected data
     • evidence
   • theories are used to make predictions

5. diffusion

   • the natural mixing of substances
     • fastest in gases
       • slow in liquids

6. dilution

   • where you add water to something
     • the water partcles the others further apart making something weaker

7. pressure

   • pressure is caused by particles hitting the wall of the container
     • reasons for it to inrease
     • container will get squashed
     • particles increase
     • temperature increases

8. vacumm

   • a place of nothingness