3. How do particles of matter move?

4.  Matter is made of particles called atoms

5. How do particles of matter move?  Matter is made of particles called atoms  Molecule – a group of atoms

6. How do particles of matter move?  Matter is made of particles called atoms  Molecule – a group of atoms  Atoms and molecules move constantly

7. How do particles of matter move? What is Kinetic energy?  Matter is made of particles called atoms  Molecule – a group of atoms  Atoms and molecules move constantly

8. How do particles of matter move? What is Kinetic energy?  Matter is made of particles called atoms  Molecule – a group of atoms  Atoms and molecules move constantly  The constant motion of atoms is a form of energy

9. How do particles of matter move? What is Kinetic energy?  Matter is made of particles called atoms  Molecule – a group of atoms  Atoms and molecules move constantly  The constant motion of atoms is a form of energy  Kinetic energy – energy of motion

10. What is Kinetic energy?  Atoms and molecules move constantly  The constant motion of atoms is a form of energy  Kinetic energy – energy of motion  Faster atoms have more kinetic energy

12. What is heat?

13.  Form of energy caused by motion of atoms & molecules

14. What is heat? What is temperature?  Form of energy caused by motion of atoms & molecules

15. What is heat? What is temperature?  Form of energy caused by motion of atoms & molecules  The measure of the average speed of atoms

16. What is heat? What is temperature?  Form of energy caused by motion of atoms & molecules  The measure of the average speed of atoms atoms in hot objects move fast

17. What is heat? What is temperature?  Form of energy caused by motion of atoms & molecules  The measure of the average speed of atoms atoms in hot objects move fast atoms in cold objects move slowly

18. What is temperature?  The measure of the average speed of atoms atoms in hot objects move fast atoms in cold objects move slowly 98.6 ° F = normal body temp.

19. How is heat transferred?

20.  Heat can be transferred from one object to another

21. How is heat transferred?  Heat can be transferred from one object to another  Heat moves from warmer to cooler objects

23. Why is a light bulb hot?

24.  energy for a light bulb comes from electricity

25. Why is a light bulb hot?  energy for a light bulb comes from electricity  Only a small amount of the energy from a light bulb brightens a room

26. Why is a light bulb hot?  energy for a light bulb comes from electricity  Only a small amount of the energy from a light bulb brightens a room - 2% is actual light energy - 98% is heat energy

27. Why is a light bulb hot? Heat & cars  energy for a light bulb comes from electricity  Only a small amount of the energy from a light bulb brightens a room - 2% is actual light energy - 98% is heat energy

28. Why is a light bulb hot? Heat & cars  energy for a light bulb comes from electricity  Only a small amount of the energy from a light bulb brightens a room - 2% is actual light energy - 98% is heat energy  Source of energy is gasoline which is made from oil

29. Why is a light bulb hot? Heat & cars  energy for a light bulb comes from electricity  Only a small amount of the energy from a light bulb brightens a room - 2% is actual light energy - 98% is heat energy  Source of energy is gasoline which is made from oil - 20% of the gas is used to move the car - 80% is given off as heat

30. Heat & cars Heat & Fuels  Source of energy is gasoline which is made from oil - 20% of the gas is used to move the car - 80% is given off as heat

31. Heat & cars Heat & Fuels  Source of energy is gasoline which is made from oil - 20% of the gas is used to move the car - 80% is given off as heat  A power plant is a place where electricity is made

32. Heat & cars Heat & Fuels  Source of energy is gasoline which is made from oil - 20% of the gas is used to move the car - 80% is given off as heat  A power plant is a place where electricity is made  Energy for power plant comes from fossil fuels

33. Heat & Fuels - 20% of the gas is used to move the car - 80% is given off as heat  A power plant is a place where electricity is made  Energy for power plant comes from fossil fuels  Fossil fuels are oil, coal, natural gas

34. Heat & Fuels - 20% of the gas is used to move the car - 80% is given off as heat  A power plant is a place where electricity is made  Energy for power plant comes from fossil fuels  Fossil fuels are oil, coal, natural gas  Heat is lost at every step when fossil fuel is made into electrictiy