1. Energy Transformations in Photosynthesis

2. Plants use radiant energy they receive from the sun & convert it to chemical energy in a process called photosynthesis.

3. During photosynthesis, the atoms that make up carbon dioxide & water rearrange, with help from chlorophyll and sunlight, to form glucose & oxygen.

4. Glucose is a type of sugar that the plant uses for food to provide energy for growth & cellular processes.

5. When other organisms eat a plant, the chemical energy stored in the plant is passed on to the organism.

6. The symbols below represent a chemical equation.
CO2 + H2O + sunlight C6H12O6 + O2

7. If the equation was put into words it would read like this...

8. Carbon dioxide reacts with water & energy from the sun to yield (form) glucose & oxygen.
CO2 + H2O + sunlight C6H12O6 + O2

9. Each letter in the equation represents a symbol for an element found on the periodic table of elements.
CO2 + H2O + sunlight C6H12O6 + O2

10. C O2 + H2O + sunlight/ chlorophyll
C 6H12O6 + O2
C= Carbon

11. C O 2 + H2 O + sunlight/ chlorophyll
C6H12 O 6 + O 2
O= Oxygen

12. CO2 + H 2O + sunlight/ chlorophyll
C6 H 12O6 + O2
H= Hydrogen

13. Elements join chemically with different elements to form compounds.
CO2 + H2O + sunlight C6H12O6 + O2

14. CO2 + H2O + sunlight/ chlorophyll
C6H12O6 + O2
CO2= Carbon dioxide

15. CO2 + H2O + sunlight/ chlorophyll
C6H12O6 + O2
H2O= Water

16. CO2 + H2O + sunlight
C6H12O6 + O2
C6H12O6= Glucose

17. When elements join together they form a molecule.

18. Elements forming a molecule may be the same kind or different kinds of atoms.

19. sunlight/ chlorophyll
CO2 + H2O +
sunlight/ chlorophyll
C6H12O6 + O2
Molecules

20. Radiant Energy Kinetic Energy Chemical Energy Potential Energy
becomes
Chemical Energy
Potential Energy

21. Sunlight Carbon Dioxide gas from the air Water from the soil and air
Chlorophyll
Carbon Dioxide gas from the air
Water from the soil and air
Radiant Energy (light) (Kinetic)

22. Chemical Energy (Potential) Oxygen gas exits the leaves
Glucose (sugar)
Chlorophyll
Oxygen gas exits the leaves

23. Respiration Energy-producing process: Glucose + Oxygen
Carbon Dioxide + Water + Energy
Plants & Animals!