Class 05 EVS - Green School

Activities

Activity 1: School Mapping

Aim/Objective: To observe and document the layout of the school to identify key features and resources.

Materials Required:

• Drawing paper
• Pencils and eraser
• Ruler

Procedure:

1. Walk around the school campus with a teacher.
2. Observe and sketch the locations of the main building, playground, garden, water tanks, gates, and pathways.
3. Create a final map including all these features.

Observation:

• A detailed layout of the school emerges, showing the relationships between different functional areas like classrooms, gardens, and water sources.

Explanation:

• Mapping is a fundamental geographical and planning skill. In the context of a "Green School," it helps students visualize their environment, identifying where resources (like water) are located and where there is potential for improvement (like planting more trees).

Conclusion:

• Understanding the school's layout is the first step in managing and improving the campus environment.

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Activity 2: Waste Segregation Game

Aim/Objective: To learn how to correctly categorize different types of waste for better management.

Materials Required:

• 30-40 paper chits with names/drawings of various waste items (e.g., plastic bottle, banana peel, old newspaper)
• Three empty boxes labeled: 'Green (Wet Waste)', 'Blue (Dry Waste)', 'Items for Recycler'

Procedure:

1. Pick a chit and decide which box it belongs to.
2. Place the chit in the chosen box.
3. After all chits are sorted, discuss as a class if each item was placed correctly.

Observation:

• Items like food peels go in the green box. Plastic and metal go in the blue box. Glass or large stacks of paper might be set aside for recyclers.

Explanation:

• Segregation at source is the most important step in waste management. Wet waste (biodegradable) can be composted, while dry waste can be processed or recycled. Proper segregation prevents landfills from filling up and allows for "circular economy" practices where materials are reused.

Conclusion:

• Correct waste segregation is essential for a clean and sustainable school environment.

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Activity 3: Heat Absorption (Black vs. White)

Aim/Objective: To observe how different colours absorb heat differently.

Materials Required:

• Two identical tiles or stones
• Black paint and white paint
• Sunlight

Procedure:

1. Paint one tile black and the other white.
2. Place both tiles under direct sunlight for at least 30 minutes.
3. Touch both tiles and feel the temperature difference.

Observation:

• The black tile feels significantly hotter than the white tile.

Explanation:

• Surfaces absorb or reflect light energy (photons). Black surfaces absorb almost all visible light and convert it into heat energy. White surfaces reflect most of the light, absorbing very little energy, which keeps them cooler. This is why white roofs are used in hot climates to keep buildings cool.

Conclusion:

• Darker colours absorb more heat, while lighter colours reflect heat.

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Activity 4: Measuring Water Wastage

Aim/Objective: To quantify the amount of water lost through a simple leak or dripping tap.

Materials Required:

• A dripping tap (or a bottle with a small hole)
• A measuring glass
• A timer or watch

Procedure:

1. Place the measuring glass under a dripping tap.
2. Start the timer and see how long it takes to fill one glass.
3. Calculate how many such glasses would be filled in 24 hours.

Observation:

• Even a slow drip can fill a glass relatively quickly, leading to many liters of wasted water over a single day.

Explanation:

• Small, continuous losses are often ignored because they seem insignificant in the moment. However, over time, the cumulative volume is substantial. Measuring the loss provides a "quantitative" perspective on why fixing leaks is a high-priority conservation effort.

Conclusion:

• Every drop counts; small leaks lead to significant water wastage over time.

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Activity 5: Cooling Effect of Trees

Aim/Objective: To measure and compare the ambient temperature in the sun versus under the shade of a tree.

Materials Required:

• Two glasses of water
• Two thermometers
• A sunny spot and a shady tree

Procedure:

1. Measure the initial temperature of water in both glasses.
2. Place one glass in the direct sun and the other under the shade of a tree.
3. After one hour, measure and record the temperatures again.

Observation:

• The water under the tree is much cooler than the water kept in the open sun.

Explanation:

• Trees provide cooling through two processes: Shading (blocking direct solar radiation) and Transpiration. Trees release water vapor through their leaves, which consumes heat from the surrounding air, lowering the temperature. This natural "evaporative cooling" makes green areas significantly more comfortable.

Conclusion:

• Trees play a vital role in regulating the environment and keeping our surroundings cool.

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Activity 6: Social Behavior and Ethics Discussion

Aim/Objective: To reflect on right and wrong behaviors in shared spaces and their impact on the community.

Materials Required:

• Discussion prompts (list of situations like line-cutting or littering)

Procedure:

1. Read scenarios about students pushing at the tap, scribbling on benches, or teasing others.
2. Discuss in small groups: "What would you do?" and "How can we prevent this?".
3. Share the best solutions with the whole class.

Observation:

• Students recognize that negative behaviors disrupt the "happiness" and "peace" of the school environment.

Explanation:

• A "Green School" is not just about physical environment but also about social sustainability. Respect, kindness, and empathy are the "social nutrients" that make a community thrive. Preventing negative behavior through peer awareness and collective action builds a better society.

Conclusion:

• Positive behavior and mutual respect are essential for a happy and inclusive school environment.