1. Lesson: Energy and Space 1
Wednesday, Nov. 9
Objective: Describe how plants make their food (photosynthesis)
Warm Up:

4. What do all living things need?
Write down as many things as you can in one minute. Ready Go!

5. Plants Make Their Own Food: A Recipe for Photosynthesis

8. Photosynthesis is: How plants make their food
Write this down:
Photosynthesis is: How plants make their food
Plants do not need to go to the cafeteria for lunch!
They do need a few special ingredients, though…

9. What is needed for photosynthesis to occur?
Carbon Dioxide (CO2)
CO2 is breathed out by animals (and people).
CO2

10. What is needed for photosynthesis to occur?
Light
Plants use light energy to make sugar

11. What is needed for photosynthesis to occur?
Water
The plant’s leaves and roots soak up water to use for photosynthesis.

12. What is MADE by plants as a result of photosynthesis?
Oxygen (O2)
We use it to breathe!

13. What is MADE by plants as a result of photosynthesis?
Sugar (Food)

14. What is MADE by plants as a result of photosynthesis?
Water
Plants release water through their leaves. This is called transpiration!

15. A Formula for Photosynthesis
Sun + Carbon Dioxide + Water =
Food + Oxygen + Water

16. What part of the plant absorbs the sun’s energy? Chlorophyll!

17. Now it’s YOUR TURN: Photosynthesis
Plants Need Plants Make
3 factors factors
plants need plants make

18. PHOTOSYNTHESIS Plants Need Plants Make Water Water Carbon Dioxide
Sunlight
Sugar (Food)
Carbon Dioxide
(CO2)
Oxygen (O2)
Water
Water

19. Why are plants called producers?
SUGAR
WATER

20. WHY IS PHOTOSYNTHESIS SO IMPORTANT?
PHOTOSYNTHESIS is one of the most important biological process on earth!
· Provides the oxygen (O2) we breathe
· Consumes extra Carbon Dioxide CO2
· Makes Plant Food
· Gives US food!

21. But HOW can plants use sunlight to make food??????

23. 1. Plants get energy from the sun.
2. Inside the plant, the Chloroplast is where photosynthesis happens.
3. Chloroplasts are filled with chlorophyll.

24. 4. Chlorophyll is the stuff that makes plants green.
5. Chlorophyll absorbs the sun’s energy and gives the plants energy to do photosynthesis.
Question: What is the energy source that a plant needs to do photosynthesis?
Answer: A plant’s energy comes from ________________ absorbed by _________________

26. How Are Plants and Animals Different?
Producers!
Plants can make their own food.
Plants have chlorophyll
·Animals cannot make their own food.
·Animals do NOT have chlorophyll (even green animals don’t have it!)