1. LO: SWBAT explain how plants absorb light for photosynthesis DN: Write the equation for photosynthesis. What are the raw materials and the end products? HW: Quiz Monday, Castle Learning

2. What chemical reaction is this?

3. Why is it called PHOTO …….SYNTHESIS? Photo …….. Light Synthesis…….. To make

4. Where is the energy coming from? What color is sunlight? The Sun White

5. Is white light really white? What do you see? ROY G BIV

6. Where does photosynthesis happen?

7. In what organelles does it happen?

8. Why are chloroplasts green? Chlorophyll – green pigment Traps ROY ___ BIV It reflects Green

9. How do chloroplast trap light energy? They have Chlorophyll green pigment that absorbs all colors Of white light, except_______

10. Absorption of Light by Chlorophyll a and Chlorophyll b VBGYOR Chlorophyll b Chlorophyll a Section 8-2 Figure 8-5 Chlorophyll Light Absorption Go to Section:

11. Chlorophyll is not the only pigment! In the Fall we See the Others

12. Would a plant grow in green light? No because it will not absorb any energy to carry out photosynthesis- chlorophyll reflects green light

13. What colors do they absorb?

15. How can we separate these pigments? Chromatography Separates the mixtures. Substances that do not stick tightly to the paper will be picked up by the solvent & moved along quickly