Class 5 Evs - ICSE-SCIENCE
Plants - Photosynthesis, Seed Dispersal, Reproduction
This chapter explores the fascinating world of plants, focusing on how they make food, spread their seeds, and reproduce to grow new plants. In EVS (Our Wondrous World) for Class 5 ICSE Science, students learn about photosynthesis as the process where green leaves use sunlight, water, and carbon dioxide to create food. The chapter also explains various methods of seed dispersal by wind, water, animals, and explosion, ensuring plants survive and grow in new places. Understanding these concepts is essential for board exams as it builds a strong foundation in plant biology and environmental science.
Start Learning FreeKey Concepts
Photosynthesis
The process by which green leaves use sunlight, water, and carbon dioxide to make their own food and release oxygen.
Stomata
Tiny pores on the underside of leaves that take in carbon dioxide from the air and release oxygen.
Chlorophyll
The green pigment in leaves that traps sunlight, which is necessary for making food.
Seed Dispersal
The scattering of seeds away from the parent plant using agents like wind, water, animals, and explosion.
Plant Reproduction
The way new plants are formed either from seeds or from vegetative parts like roots, stems, and leaves.
Important Formulas
Board Exam Info
In ICSE Science exams, this chapter typically carries about 6 to 10 marks. Common question types include defining key terms like photosynthesis and germination, labeling diagrams of leaves or seeds, differentiating between agents of seed dispersal, and giving reasons why plants need sunlight and water.
Frequently Asked Questions
Why do plants need sunlight for photosynthesis?
Sunlight provides the energy required for the leaves to convert carbon dioxide and water into food.
How do seeds travel to far-off places?
Seeds travel through agents of seed dispersal such as wind (lightweight seeds with hair), water (floating seeds), animals (hooked seeds or eaten fruits), and explosion (bursting pods).
What happens to the oxygen produced during photosynthesis?
The oxygen is released into the air through tiny pores called stomata, which humans and other animals breathe in.
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