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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 2: Is Matter Around Us Pure?

Chapter 2: Is Matter Around Us Pure? – Short Notes 1. Introduction 2. What is a Mixture? 3. Types of Pure Substances Property Mixture Compound Composition Variable Fixed Properties Properties of components are retained New properties different from components Separation Components can be separated by physical methods Components can be…
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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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24 Aug 25

Class 10 Science – Chapter 6 Control and Coordination

Control and Coordination – Short Notes 1. Introduction 2. Animals – Nervous System Uses electrical impulses for fast, short-lived responses. A. Neuron (Nerve Cell): Structural & functional unit. B. Reflex Action: C. Human Brain:Protected by the skull and has three main parts: Part of Brain Function Fore-brain(Cerebrum) – Controls voluntary…
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24 Aug 25

Class 10 Science – Chapter 5

Chapter 5: Life Processes – Short Notes 1. What are Life Processes? The basic functions performed by living organisms to maintain life are called life processes. The main life processes are: 2. Nutrition The process of taking in food and its utilization by the body. Modes of Nutrition: Human Digestive…
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