1. Chapter 8 Energy in Matter

2. Matter & Energy are Related
Mass & takes up space
Composed of atoms
Atoms- building blocks of ALL matter
Molecules- atoms linked together
Chemical bonds- links that hold atoms in molecules together

3. Matter & Energy are Related
No mass or volume
Visible only by effect on matter

4. Chemical Bonds Hold atoms together to form molecules
Energy is stored within the structure or a molecule’s bonds & atoms
Carbon dioxide: CO2
Water: H2O

5. Examples: Water H2O Hydrogen H2 Carbon dioxide CO2 Ammonia NH3
Methane CH4
= Oxygen
= Hydrogen
= Nitrogen
= Carbon

6. Energy: Two forms Potential Energy Inactive
Available for use, stored in matter
Kinetic Energy
Energy of motion
Occurs when potential energy is released

7. Conservation of Energy
Energy cannot be created nor destroyed only transferred from one form to another

8. Matter & Energy are Related
Chemical Energy – stored in bonds of a molecule
Creating bonds STORES energy
Breaking bond RELEASES energy

9. Matter & Energy are Related
Glucose  the most common substance used for energy in living things
C6H12O6
More bonds broken = more energy released

10. Energy Problems One Glucose Molecule = a 10,000 EURO Bill in the USA
Glucose is not usable form
Solution……convert energy into ATP!!

11. ATP = Adenosine Tri-Phosphate
1. Break chemical bonds in glucose
2. Create chemical bonds in ATP
3. Body uses ATP for energy!!!!
 CELLULAR RESPIRATION!!!!!!!!!