As we recap on today's main learning points for Science, remember to bring your English files tomorrow and your Science workbooks. English retest for spelling is also scheduled for tomorrow.
- We learnt about creepers and climbers.
- Creepers grow along the ground, spreading out their shoots as much as possible to obtain sunlight. One example is the carpet grass.
- Climbers have tendrils and clasping roots to climb onto supports like fences, wooden poles or even other plants with strong stems to obtain sunlight.
- Tendrils are special leaves or stems of plants that have threadlike shape to climb and twine around objects for support.
- Concept here is that plants grow towards the direction of the sunlight. They need to grow upright.
- Examples of climbers include the morning glory plant.
- Then, we talked about aquatic plants and how they can be classified into fully submerged and partially submerged.
- Water plants have different structural adaptations to help them survive in water. They need to stay upright to reach for the sunlight.
- Some have waxy leaves in order to prevent water from soaking it and pulling it down. it enables the plant to stay afloat above the water. Example include the water hyacinth and water lily.
- Some have swollen leaf stalks that contain air spaces to help trap air and allow the plant to float on top of the water. One example is the water hyacinth.
- Concepts here is that air is lighter than water and thus, allows the plant to float on water.
- Some plants can trap air bubbles to allow them to stay upright and reach for sunlight in the water while some have spongy leaves and stems to allow them to float.
These are the important points for today's lesson.
Thank you,
Sincerely,
Mr Nelson Ong
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