GSEB Board

27 Aug 25

Class 9 Science Chapter 3: Atoms and Molecules

Class 9 Science Chapter 3: Atoms and Molecules based on the NCERT syllabus. Chapter 3: Atoms and Molecules – Short Notes 1. Laws of Chemical Combination 2. Dalton’s Atomic Theory Postulates: (Note: Modern research shows atoms are divisible into sub-atomic particles like electrons, protons, and neutrons, and atoms of the…
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27 Aug 25

Class 9 Science Chapter 6: Tissues.

Class 9 Science Chapter 6: Tissues. Chapter 6: Tissues – Short Notes 1. Introduction 2. Plant Tissues I. Meristematic Tissue II. Permanent Tissue Cells that have lost the ability to divide and have attained a permanent shape, size, and function. 3. Animal Tissues I. Epithelial Tissue II. Connective Tissue III.…
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27 Aug 25

Class 10 Science – Chapter 8 – Heredity and Evolution

Heredity and Evolution – Short Notes 1. Introduction 2. Accumulation of Variation during Reproduction 3. Mendel’s Experiments (Inheritance) Key Terms: Monohybrid Cross (Cross for one trait): 4. Sex Determination 5. Evolution Evidences for Evolution: 6. Speciation 7. Human Evolution Quick Revision Table: Heredity vs. Variation Heredity Variation Inheritance of traits…
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26 Aug 25

Class 10 Science – Chapter 7 How do Organisms Reproduce?

How do Organisms Reproduce? – Short Notes 1. Introduction 2. Types of Reproduction Feature Asexual Reproduction Sexual Reproduction Number of Parents One Two (Male & Female) Gametes Not involved Involved (Fusion of gametes) Offspring Genetically identical clones Genetically diverse Examples Binary fission, Budding, Fragmentation Humans, Flowering plants 3. Asexual Reproduction…
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