Q2 W54444444444444444444444444444444444444.pptx

SCIENCE 4

1. Root System

2. 2 At the end of this lesson, the learners should be able to observe the root and shoot system in plants and describe why they are important. Learning Competency

3. 3 Learning Targets At the end of this lesson, the learner should be able to do the following: Understand the basic structure and function of the plant root system, including primary and secondary roots, root hairs, and root cap. Explain the role of the root system in nutrient and water uptake, anchoring the plant, and interacting with soil microorganisms.

4. Introduction Do you know how tall trees stand firmly on the ground?

5. Introduction It is because of their strong roots! These roots not only hold the tree in place but also help it to drink water and get nutrients from the soil. We will learn how they work together with the shoot system to maintain a plant’s health.

6. How do the root and shoot systems in plants work together to adapt and respond to different environmental factors such as light, temperature, and the availability of nutrients?

7. Warm-Up Are you ready to become a detective… of plants! Let’s explore the world of plants together! Plant Detectives

8. Warm-Up small potted plants magnifying glasses paper pencil colored pencils or crayons Materials

9. Warm-Up Step-by-Step Procedure Each group receives a small plant and a magnifying glass. Take the plant out from the pot to expose the roots. Use the magnifying glass to look closely at the roots. Draw what the roots look like. Be as detailed as possible. Share it with the class after.

10. Warm-Up Observation Findings Name of Plant Root Drawing Description of root

11. Warm-Up What role do the roots play for the plant? How do the shoot system and root system work together? What might happen to the plant if either the root or shoot system was not healthy? Reflect and Understand

12. Learn about It Plants have two main systems: the shoot system and the root system .

13. Learn about It The root system primarily includes the roots and its parts.

14. Learn about It The root system is a very important part that you usually cannot see. Roots: Hidden Half of the Iceberg

15. Learn about It Structures of the Root System Primary root First root that pops out Goes deep down into the soil Help the plant stand tall Sips water and nutrients from the soil

16. Learn about It Structures of the Root System Secondary and tertiary roots support the primary roots like arms and fingers reach out further in the soil make sure everything gets absorbed

17. Learn about It Structures of the Root System Root hairs Help the plant absorb more water and nutrients Like tiny drinking straws Root cap a helmet that protects the growing root tip makes a slimy substance that helps the root burrow

18. Let us watch this video to see how primary, secondary, and tertiary roots develop in plants!

19. Learn about It Which cup will empty first if sipped simultaneously? A B

20. Learn about It Role of Roots: Nutrient and Water Uptake roots act like straws transport nutrients to the leaves facilitates photosynthesis root hairs increase surface area of roots

21. Learn about It How do the tent and its pegs in the camping analogy correspond to parts of a tree, and what role do they play in ensuring stability?

22. Learn about It Role of Roots: Anchor hold the plant firmly in the ground protect plants being blown away by strong winds

23. Learn about It Role of Roots: Interacting with Soil Microorganisms with the help of microorganisms , make the soil richer and help plants grow better vermicompost: natural fertilizer made of earthworms

24. Tips Remember, when you are planting, it is important to give plants enough space to spread their roots. This way, they can find all the nutrients they need to grow big and strong!

25. Key Points The root system operates beneath the soil surface, serving as the critical foundation for a plant's health and stability. The roots have different parts such as the primary root , secondary root , tertiary root , root hairs , and root cap . All these structures help the roots in doing their job for the plant! Roots are essential in the process of photosynthesis . They channel water and nutrients from the soil to the leaves which are utilized in the production of food for the plant.

26. 26 Synthesis How do the structures of a plant’s root system support its overall health and growth?

27. 27 Synthesis How can understanding the root and shoot systems of plants help farmers or gardeners in the Philippines make more informed decisions about crop cultivation?

28. 28 Synthesis Have you heard the terms hydroponics and aeroponics? These are types of farming where plants grow without soil. How do you think the root systems adapt in these environments?