Higher:
我可以解释为什么种子在播种后不能立即发芽。
Middle:
我可以解释为什么某些过程发生在发芽阶段。
Lower:
我可以描述发芽的一些重要阶段。
Which part of the plant grows first? Why does it grow first?
Why do the seeds need to feel the cold before germinating?
Why are bulbs so fat?
Germination is the process that occurs at the beginning of a plant's life. It will only occur if certain conditions are met. These conditions vary from plant to plant so most seeds and bulbs can lay dormant for long periods of time. Seeds that are sold for planting are often dried in order to preserve them.
Some seeds and bulbs need to experience a period of cold before they germinate. This is the plants way of measuring winter. The plant is trying to detect if winter has passed and therefore is it safe to germinate.
When seeds and bulbs are first planted they absorb as much water as they can and swell. This gives the seeds and bulbs sufficient resources for its initial growth to the surface. Once the plant has breached the surface the green parts take over and it gains energy through photosynthesis.
Explore the parts that flowers play in the life cycle of flowering plants; including pollination, seed formation and seed dispersal.
Planet Earth - Biodiversity and interdependence - Through carrying out practical activities and investigations, I can show how plants have benefited society. SCN 2-02b
The study of the characteristics, systems, and behaviours of humans and other animals, and of plants; the interactions and relationships between and among them, and with the environment.
Exploration.
Setting up simple practical enquiries, comparative and fair tests
Grade 5 Reproduction in Plants
3 年级 - 生命科学 - 生物 - 生物生长和变化 - 植物生命周期 - 什么是开花植物的生命周期
说明植物通常由根、叶、花、果实和种子组成，这些部分具有相应的功能，帮助植物维持自身生存
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