1.  2.1 States of Matter Hyeji Jun

2. Atoms  Everything is made up of atoms.  In solids, the particles vibrate, and when heated they receive energy and vibrate faster.  At one point they start moving but are not free (they turn into liquid).  In liquid, the particles move around, and when heated they receive energy and break free (they turn into gas).

3. Plasma  Exists only at high temperatures  Indefinite shape  Indefinite volume  Under influence of a magnetic field  example:  Neon signs  Lightning  Stars

4. Properties of Solids  Atoms are packed (ordered)  Dense  Has a definite shape  Has a definite volume  Not very compressible  example:  Ice

5. Properties of Liquids  Atoms are somewhat free (disordered)  (Usually) less dense than solids  Indefinite shape  Definite volume  Somewhat compressible  example:  Water

6. Properties of Gases  Atoms are free (disordered)  Much lower density than liquids and solids  Indefinite shape  Indefinite volume  Compressible  example:  Steam

7. Stages SolidGas Liquid Melting Freezing Boiling Condensation Sublimation

8. Bibliography  http://edutech.csun.edu/eduwiki/ULimages/2/22/Slgas.jpg http://edutech.csun.edu/eduwiki/ULimages/2/22/Slgas.jpg  http://ap-physics.david-s.org/states-matter/http://ap- physics.david-s.org/states-matter/ http://ap-physics.david-s.org/states-matter/http://ap- physics.david-s.org/states-matter/  http://eschooltoday.com/science/states-and-behaviour-of- matter/images/molecules-under-a-microscope.jpg http://eschooltoday.com/science/states-and-behaviour-of- matter/images/molecules-under-a-microscope.jpg  http://en.wikipedia.org/wiki/Plasma_(physics) http://en.wikipedia.org/wiki/Plasma_(physics  http://nikonites.com/attachments/general- photography/4573d1311316950-lightning-chase-2011-a-dsc_2895- 1-1.jpg http://nikonites.com/attachments/general- photography/4573d1311316950-lightning-chase-2011-a-dsc_2895- 1-1.jpg