Monday: Brainpop on States of Matter, Notes and flashcards on States of Matter 
 
Tuesday: Heat Notes,Brainpop on Heat, Create graphic organizer for types of heat 
 
Wednesday: Finish Graphic Organizer, Review states of matter, complete "Weather Why" 
 
Thursday: 
 
Friday: 
HEAT NOTES  
 
Heat is the total energy of the motion of molecules in a substance.  
-Heat depends on the size or number of particles, the speed of the particles, and the type of particles  
-Heat is energy!  
 
Temperature is the average energy of the motion of molecules in a substance  
-Temperature does NOT depend on the size, number, or type of particles, only on the speed at which the particles are moving  
-Temperature is a measure of energy  
 
Types of Heat Transfer  
 
1. Conduction – heat transfer from molecule to molecule (two substances touching)  
• Heat is transferred from the warmer object to the cooler object  
• If something feels cold, it is because the heat is going from you to the substance  
• Example: When you touch a cup of hot coffee, the heat in the molecules of the coffee mug is transferred to the molecules in your hands.  
 
2. Convection – heat transfer by the circulation of rising warm air and sinking cool air  
• Warm, moist air forms convection currents better than warm dry air. (This is why more severe weather occurs in the warmer months.)  
• Convection currents form when more dense, cool air forces lighter, warmer air to rise.  
• Moist air (or humid air) holds heat better than dry air, which is why it feels hotter in humid climates and why running a humidifier or vaporizer seems to make a room feel warmer.  
 
3. Radiation – heat transferred by infared waves  
• Infared waves are next to the color red on the light spectrum. They give us heat.  
• Radiation is also called radiant heat  
• Light colored clothes reflect heat, and dark colored clothes absorb heat.  
• Example: When you warm up next to a fire, you are experiencing heat by radiation.  
• When your car gets hot after sitting in the sun, this is heat transfer by radiation.  
 
BrainPop Notes  
 
1. Energy causes molecules to become active/excited.  
2. In this excited state, molecules move around and bump into each other a lot.  
3. Temperature measures how fast molecules are moving.  
4. Heat measures the energy contained within an object because of its moving molecules.  
5. There is more heat in an iceberg than in a pot of boiling water.  
6. This is because the iceberg is a lot bigger.  
7. The lowest temperature you can get is absolute zero or -273°C. (This is the temperature at which all molecular motion stops.)  
8. Heating up an object causes it to expand because excited molecules take up more space.