1. Investigation 3 kinetic & potential energy

2. Sun’s Energy
Much of the sun’s energy is converted into stored chemical potential energy (photosynthesis)
Chemical energy stored in plants is used for growth and reproduction.
Chemical potential energy can be stored for long periods of time (eg. Coal or oil)

3. The intensity and power of a raging forest fire is near incalculable
The intensity and power of a raging forest fire is near incalculable. A simple combustion reaction converts potential chemical energy into the kinetic energy of heat, light, wind and roaring sound.
Combustion means to give off heat.
The forest fire above shows a combustion reaction and the release of kinetic energy from stored chemical potential energy.

4. Potential Chemical Energy converts to Kinetic Mechanical Energy

5. Chemical to Mechanical Energy
Old steam locomotive used wooden logs to boil water and drive the steam engine.
The coal burning battleship was powered by steam pressure to drive the engine
International tennis star Novak Djokovic eats a banana for energy and potassium during a match
Gasoline is added to fuel an internal combustion engine
A horse feeds on hay to gain chemical potential energy to pull a cart.

6. Mechanical energy1

7. The design of the internal combustion engine was modified and perfected during the 20th century and is still the major source for self-propelled motor vehicles throughout the world.

9. We will not create a combustion reaction, but we will create carbon dioxide gas.
The reaction will be observed as bubbles in Lab.