Topics
The Living World: Adaptations and Classification
- Biodiversity
- Adaptations and Its Types
- Adaptations of Plants
- Adaptation in Aquatic Plants (Hydrophytes)
- Adaptation in Desert Plants (Xerophytes)
- Adaptation in plants of snowy regions
- Adaptation in Forest Plants
- Adaptation in Grassland Plants (Mesophytes)
- Adaptation for Ingestion of Food in Plants
- Adaptation in Animals
- Adaptation in Aquatic Animals
- Adaptation in Forest and Grassland Animals
- Adaptation in Desert Animals
- Adaptation in animals of snowy regions
- Adaptation in Aerial Animals
- Adaptation in Reptiles
- Adaptation for Food in Animals
- Adaptation for Blending with the Surroundings
- Classification of Living Organisms
- Taxonomic Hierarchy of Living Organisms: Unit of Classification
- Nomenclature
Plants: Structure and Function
Properties of Natural Resources
Nutrition in Living Organisms
- Nutrients and Nutrition
- Autotrophic Plants
- Symbiotic Plants
- Heterotrophic Plants
- Insectivorous Plants
- Saprophytic Plants
- Role of nutrients and effects of their deficiency on plants
- Transport System in Plants
- Nitrogen Fixation
- Nutrition in Animals
- Mode of Nutrition in Animals
- Holozoic Nutrition
- Saprozoic Nutrition
- Parasitic Nutrition
Food Safety
Measurement of Physical Quantities
Motion, Force and Work
Static Electricity
Heat
Disaster Management
Cell Structure and Micro-organisms
- Cell: Structural and Functional Unit of Life
- Measurement and observation of cells
- Plant Cell and Animal Cell
- Structure of the Cell
- Cell Wall - “Supporter and Protector”
- Plasma Membrane
- Cytoplasm - “Area of Movement”
- Nucleus - “Brain” of the Cell
- Endoplasmic Reticulum (ER)
- Golgi Apparatus - "The delivery system of the cell"
- Lysosome - “Suicidal Bag”
- Mitochondria - “Power House of the Cell”
- Non-living Substances Or Cell Inclusion
- Plastids
- Microorganisms (Microbes) and Microbiology
- Useful micro-organisms
- Harmful Microorganisms
- Pathogens: Disease-producing Micro-organisms
The Muscular System and Digestive System in Human Beings
- Muscular System
- Muscles and Its Types
- Human Digestive System
- The Mouth and Buccal Cavity
- The Teeth and Its Structure
- The Salivary Glands
- The Food Pipe/Oesophagus
- Pharynx/Throat
- The Stomach
- The Small Intestine
- Pancreas
- Liver
- The Large Intestine
- Important Glands of the Digestive System
- Effects of Tobacco, Alcohol, Smoking, on the Digestive System
Changes – Physical and Chemical
- Changes-Physical and Chemical
- Classification of Change: Natural and Man-made Changes
- Classification of Change: Harmful and Useful Changes
- Classification of Change: Slow and Fast Changes
- Classification of Change: Reversible and Irreversible Changes
- Classification of Change: Periodic and Non-periodic Changes
- Classification of Change: Physical Changes
- Classification of Change: Chemical Changes
- Corrosion of Metals
Elements, Compounds and Mixtures
Materials We Use
Natural Resources
Effects of Light
Sound: Production of Sound
Properties of a Magnetic Field
In the World of Stars
- Activity 1
- Activity 2
Experiment 2
To demonstrate the need for a standard unit of measurement.
- Measure the length of a bench using your handspan.
- Ask friends to measure the same bench using their handspans.
- Compare the results and observe that each person gets a different measurement.
- This happens because handspan size varies from person to person.
- The differences show why we need a standard unit of measurement, like the meter, to ensure accuracy and consistency in measurements.
Activity 1
To understand why handspans are not reliable for accurate measurement
- One student measures and cuts a string using four handspans.
- Other students repeat the process, measuring and cutting their own four-handspan-long string.
- Compare all the strings by holding them together at one end.
- The lengths of the strings will be different because each student’s handspan varies.
- This shows that handspans are not a reliable or accurate method of measurement, as they differ from person to person.
Activity 2
To demonstrate the need for a standard unit of measurement.
- Measure the length of a bench using your handspan.
- Ask friends to measure the same bench using their handspans.
- Compare the results and observe that each person gets a different measurement.
- This happens because handspan size varies from person to person.
- The differences show why we need a standard unit of measurement, like the meter, to ensure accuracy and consistency in measurements.
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