States of Matter: Lesson 37 Heat Transfer

1. Expectations: 1. Listen carefully 2. Work hard 3. Be responsible States of Matter: Lesson 37Heat Transfer

2. Review: Solids cannot change form unless force is used. It is like chopping wood. Liquids can move and take the shape of the container they are in. Liquids do have forces holding them together, like we saw in the penny experiment. Gases move freely and spread out to fill any space.  

3. What is heat? A form of energy found in all matter. Heat causes the molecules in a substance to move faster. Energy can take on many forms, and change from one form to another. Many types of energy can be converted into heat energy; light electrical, mechanical, chemical, nuclear, sound and thermal can all cause a substance to heat up by making its molecules move faster.

4. How does heat move? http://youtu.be/Yp4OUjly0VE http://youtu.be/9ghYur0vqgE

5. How can we use this knowledge? http://youtu.be/lOkYCIuN8XI

6. Sources of heat:

7. What have we learned? Heat is the energy an object has because of the movement of its atoms and molecules which are continuously jiggling and moving around, hitting each other and other objects. When we add energy to an object, its atoms and molecules move faster increasing its energy of motion or heat. Even objects which are very cold have some heat energy because their atoms are still moving.

8. Assignment: http://www.epa.gov/ogwdw/kids/flash/flash_watercycle.html Look again at the water cycle and find out where the heat energy is coming from. Pay attention in your life for heat sources and transferring of heat energy. 

9. I had fun learning and working with you  Keep your eyes open, scientist.  I will see you next lesson!