The document discusses a unit on plants that will review photosynthesis through a game, learn about plant interactions with the environment, and ask questions about photosynthesis. It includes a game to review photosynthesis that asks questions about how gases enter leaves, the components of raw sap, and photosynthesis processes. It also discusses stimuli that plants receive from the environment, how plants respond through tropisms and nastic movements, and includes videos about tropisms and the Venus flytrap responding to stimuli.

1. UNIT 1-PLANTS

2. Today we are going to:
• Review photosynthesis with a game
• Learn about the vital function: “Interaction with the
environment”

3. Questions:
• Where takes place photosynthesis?
• What are chloroplasts?
• What is chlorophyll?
• How can gases go in and out of the leaves?
• What are stomata?
• What is the raw sap?
• What is the elaborated sap?

4. Photosynthesis process
2
1
3
4
5

5. Organic
matter

6. Organic
matter
(glucose)

7. Organic
matter
(glucose)

9. Game to review the photosynthesis
1 2
3 4

10. 1- How do gases enter and exit the leaves?
a) Through the veins
b) Through tiny pores called stomata
c) Through tiny vessels inside leaves

11. Try again! 
Question 1

12. Well done! 
Home

13. 2- The raw sap is made up of
a) Carbon dioxide
b) Water and mineral salts
c) Glucose (organic matter)

14. Try again! 
Question 2

15. Well done! 
Home

16. 3- Look at the picture and identify the right answers
a) 1 is the raw sap and travels
through 2, the phloem
b) 1 is the raw sap and travels
through 2, the xylem
c) 3 is the raw sap and travels
through the phloem
d) 3 is the elaborated sap and
travels through the phloem

17. Try again! 
Question 3

18. Well done! 
Question 3

19. Well done! 
Home

20. 4- Look at the picture and identify the right answers about
the process of photosynthesis
a)1- raw sap, 2-elaborated
sap, 3-stomata, 4-carbon
dioxide, 5-oxygen
c) 1- Elaborated sap, 2-
elaborated sap, 3-stomata, 4-
carbon dioxide, 5-oxygen
b) 1- Elaborated sap, 2-raw
sap, 3-stomata, 4-oxygen,
carbon dioxide

21. Try again! 
Question 4

22. Well done! 
Home

23. Interaction with the environment in plants
• What are stimuli?
• Do plants move?
• Do plants respond to stimuli? How?

24. Stimuli
• Changes in the environment. Living things receive and react
to these stimuli.

25. Plants reaction to stimuli
• Tropisms
• Nastic movements
• Video about tropisms-stimuli
• https://www.youtube.com/watch?v=pCFstSMvAMI
• Go to page 144 book/digital book santillana

26. Video comprehension
• What are tropisms?

28. Tropisms

30. • Animation

31. What part of the plants has?
• Positive phototropism
• Negative phototropism
• Positive hydrotropism
• Negative hydrotropism

33. Nastic movements
• Video Venus flytrap
• https://www.youtube.com/watch?v=j5ovYf7xukw
• Video planta Drosera
• https://www.youtube.com/watch?v=jPDy2X-sCPk
• Video margaritas
• https://www.youtube.com/watch?v=mtEGLHDSELE

35. PHOTONASTY THERMONASTY SEISMONASTY SEISMONASTY

36. Why are plants/trees
important for us?

37. The importance of trees