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Theme
Water
pH of Water
Determination of pH of water sample by 'pH paper test'
Hardness of Water
Determination of hardness of water by 'testing the lather produced with soap'
Residual Chlorine in Water
Determination of residual chlorine in water by 'Ortho-Toluidine test'
Transparency of Water
Determination of transparency of water by 'Secchi Disc method'
Bacterial Contamination (E. coli) in Water
Testing the presence of fecal Coliform bacteria in water by 'Vial Culture Test'
Soil
Soil Colour
Determination of soil types based on their colours.
Soil Horizons
Understanding the formation of soil horizons
Soil Structure
Understanding the formation of soil structure
Soil Texture
Examination and determination of soil texture by handling it.
Soil Consistency
Determination of soil consistency by testing its strength and plasticity
Soil pH
Determination of pH of soil by 'pH paper test'
Soil Porosity
Determination of soil porosity by 'pore volume'
Biodiversity
Aquatic Bottom Organisms
Let's explore the diversity of aquatic bottom organisms
Fish Diversity: Different Types of Caudal Fins in Fishes
Identification of fish diversity based on their caudal fins
Fish Diversity: Different Types of Scales in Fishes
Fish scales, as identity of their growth and environmental conditions
Aquarium - A Prototype of Aquatic Ecosystem
Let's observe and understand the aquatic life through an aquarium.
Seeing Underwater from Outside
Let's see underwater from outside using viewing tube
Terrarium - A Safe House for Small Terrestrial Animals
How to keep small animals under observation in a terrarium
Vermicarium - House of Soil Worms
Making a vermicarium for nurturing and observing earthworms
Ant House (Formicarium): The House of Ants
Making a formicarium (Ant House) for lodging and observing ants
Butterfly Diversity
Lets make butterfly net and catch butterflies for study
Sampling of Small Insects
Pooter (Insect Collector) - A device to collect small insects
Bird's Houses
Let's protect and conserve birds through artificial bird nest houses
Pugmarks / Footprints
Identification of animal species by their pugmark (footprint) tracings
Height of Tree
Measuring the tree height using clinometer
Tree Crown and Canopy Cover
Determination of the crown cover of a tree through graphical drawing method
Earth & Atmosphere
Observation and identification of clouds
Knowing about cloud formations and their distributions
Rainfall Measurement
Measurement of rainfall using rain gauge
Wind Speed and Wind Direction
Determination of wind speed and wind direction using wind Vane and anemometer
Green House
Knowing about the 'Greenhouse Effect' through a small greenhouse
Eco Mapping
Know your geographical location on the Earth
Astronomy
Solar Eclipse
How to watch solar eclipse safely
Stars In the Sky
Seeing stars above my head using Tara Ghadi (Star Watch)
Changing Positions of Planets
Let's understand changing positions of our planets
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Manual Certificate
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Date Of publishing:- 2026-06-02
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