1. From Particles to Solutions
Section 5.1

2. The Particle Theory of Matter
All matter is made up of different kids of particles
Different substances are made up of different types of particles
Particles are in constant random motion
Particles move faster when heated, and slower when cooled
Particles attract each other

3. http://www. explorelearning. com/index. cfm. method=cRes ource
ource.dspView&ResourceID=555

4. Pure Substances Made up of only one type of particles
Any element from the Periodic Table
Any compound (like distilled water, carbon dioxide)

5. Mixtures Made up 2 or more types of particles
Mechanical mixture – you are able to see the different particles (pizza, oil and vinegar, cereal)
Solution – a mixture where you can’t see the different particles (apple juice, air in this room)

6. Alloys Special mixtures of metals. Bronze – tin and copper
Brass – zinc and copper
14 karat yellow gold – gold, silver, copper, zinc
Solder – lead and tin

7. Today’s Task Alloy Demo (in small groups at the back of the room)
Pg. 178 #2 -8