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NCERT Class 5 · EVS Based on NCERT Class 5 EVS textbook · Free CBSE study kit

Chapter Notes

**What is a Green School?**

A school where students manage waste properly, save water, use electricity carefully, plant trees, and keep the campus clean and safe.

**Waste Management Rules:**

  • Dry waste (paper, plastic, cardboard) → Blue bin
  • Wet waste (food scraps, vegetable peels, leftovers) → Green bin
  • Old newspapers and special items → Given to recyclers
  • **Why Colour of Surfaces Matters:**

  • White surfaces REFLECT heat → stay cool
  • Black surfaces ABSORB heat → get very hot
  • Planting trees gives shade and cools the area
  • **Water Conservation:**

  • Check for leaking taps regularly
  • Cover water tanks to keep them clean
  • Even small drips waste many litres over time
  • **School Explorer Teams:**

  • Electricity Savers: Check lights, fans, natural light use
  • Water Watchers: Look for leaks, covered tanks
  • Waste Warriors: Count dustbins, check litter
  • Green Guardians: Count plants, trees, birds, butterflies
  • Traffic Trackers: Check vehicle safety near school
  • **Important Programme:** Swachh Bharat Swachh Vidyalaya = Government programme for clean, safe schools

    **Diagrams to Remember:** Waste segregation (three bins: green for wet, blue for dry, one for recyclers); School map showing buildings, playground, garden, water tanks, pathways

    **Don't Confuse:** Recycling means giving old items new life (not throwing away); Green bin is for wet waste, blue bin is for dry waste (opposite of what many think).

    MCQs — 10 Questions with Answers

    Q1. What are the two main waste categories we separate in schools?

    • A. Dry waste and wet waste ✓
    • B. Clean waste and dirty waste
    • C. Big waste and small waste
    • D. Useful waste and useless waste

    Answer: A — The chapter teaches that waste is separated into dry waste (paper, plastic) and wet waste (food scraps, peels) for better management.

    Q2. Which colour bin is used for wet waste like vegetable peels and food leftovers?

    • A. Blue bin
    • B. Green bin ✓
    • C. Yellow bin
    • D. Red bin

    Answer: B — The chapter clearly states that green bin is used for wet waste such as food peels, leftovers, and vegetable scraps.

    Q3. If you paint a black tile and a white tile with the same paint and leave them in the sun, what will happen?

    • A. Both tiles will get equally hot
    • B. The black tile will absorb more heat and feel hotter than the white tile ✓
    • C. The white tile will absorb more heat and feel hotter than the black tile
    • D. The tiles will change colour

    Answer: B — Activity 3 in the chapter demonstrates that black surfaces absorb heat and become very hot, while white surfaces reflect heat and stay cooler.

    Q4. What is the main purpose of School Explorer Teams in a green school?

    • A. To play games during lunch time
    • B. To observe and find problems related to electricity, water, waste, plants, and traffic safety at school ✓
    • C. To clean the school every day
    • D. To grow vegetables in the garden

    Answer: B — The chapter describes that School Explorer Teams like Water Watchers, Electricity Savers, and Waste Warriors observe specific areas to find problems and improvements.

    Q5. What do recyclers do with old newspapers that students and families set aside?

    • A. They throw them in dustbins
    • B. They burn them to make energy
    • C. They collect them and reuse or recycle them into new products ✓
    • D. They give them back to students

    Answer: C — The chapter explains that old newspapers are given to traditional recyclers who collect and reuse or recycle these items instead of throwing them away.

    Q6. Why is saving water important according to the chapter?

    • A. Because water makes the school look clean
    • B. Because water is a precious treasure and even small leaks waste lots of water over time ✓
    • C. Because water is needed only for plants
    • D. Because the government says so

    Answer: B — The chapter states that water is precious and even a small leak from a dripping tap can waste a lot of water drop by drop over time.

    Q7. What does Swachh Bharat Swachh Vidyalaya programme focus on? (Fill in: It focuses on keeping schools ____ and healthy)

    • A. quiet
    • B. green
    • C. clean ✓
    • D. big

    Answer: C — The chapter defines Swachh Bharat Swachh Vidyalaya as a government programme that focuses on keeping schools clean and healthy with clean toilets, safe drinking water, and proper waste management.

    Q8. Which type of School Explorer Team would check if lights are on when no one is using them?

    • A. Waste Warriors
    • B. Water Watchers
    • C. Electricity Savers ✓
    • D. Green Guardians

    Answer: C — The chapter lists Electricity Savers as the team that checks whether lights and fans are on when no one is using them and if classrooms use natural light.

    Q9. What does a white roof do compared to a black roof?

    • A. A white roof absorbs more heat
    • B. A white roof reflects heat and keeps the building cooler ✓
    • C. A white roof gets dirtier faster
    • D. A white roof costs more money

    Answer: B — The chapter explains that a white roof reflects the Sun's heat and keeps buildings cool, while a black surface absorbs heat and becomes warmer.

    Q10. What is one important way to make the work of sanitation workers easier and safer at school?

    • A. Give them a holiday every week
    • B. Put waste in the correct bins so they don't have to separate it ✓
    • C. Buy them new uniforms
    • D. Reduce the number of workers

    Answer: B — The chapter discusses that proper waste segregation by students makes the work of sanitation workers easier and safer, so they don't have to handle mixed and separated waste.

    Flashcards

    What is a green school?

    A school that manages waste, saves water, uses electricity carefully, and plants trees to make the campus green.

    What colour bin is used for wet waste?

    Green bin is used for wet waste like food scraps and vegetable peels.

    What colour bin is used for dry waste?

    Blue bin is used for dry waste like paper, plastic, and cardboard.

    What happens when you paint a tile black and a tile white and keep them in the sun?

    The black tile absorbs heat and becomes very hot, while the white tile reflects heat and stays cooler.

    Name two things Water Watchers check for in schools.

    Water Watchers check for leaking taps and whether water tanks are clean and covered.

    What do Green Guardians observe at school?

    Green Guardians check if there are trees or plants, who takes care of them, where more can be planted, and if birds or butterflies visit.

    What is Swachh Bharat Swachh Vidyalaya?

    It is a Government of India programme that focuses on keeping schools clean and healthy with clean toilets, safe drinking water, and proper waste management.

    What do recyclers do with old newspapers and bottles?

    Recyclers collect old newspapers, bottles, and other useful items to reuse or recycle them into new products instead of throwing them away.

    Why is water wastage from a small dripping tap a problem?

    Even a small leak wastes a lot of water over time because drop by drop adds up to many litres.

    Name two types of School Explorer Teams and what they do.

    Electricity Savers check if lights are on unnecessarily, and Water Watchers look for leaking taps and water being wasted.

    Important Board Questions

    What is a green school? [1 mark]

    A green school manages waste, saves water, uses electricity carefully, and plants trees. Think of what Aasha's brother told her.

    Name the colour of bins used for dry waste and wet waste. Which items go where? [2 marks]

    Dry waste (blue bin) includes paper and plastic. Wet waste (green bin) includes food scraps and vegetable peels. Remember the segregation game from Activity 2.

    Explain with an example how a small dripping tap can waste a lot of water. What is the work of Water Watchers? [3 marks]

    Drop by drop water adds up to many litres over days and weeks. Water Watchers check for leaking taps, covered water tanks, and wet places that could breed mosquitoes.

    What did Activity 3 teach us about black and white tiles in the sun? How can this help us keep our school cool? Explain with two ways. [5 marks]

    Black tiles absorb heat and become hot, white tiles reflect heat and stay cool. Schools can use white roofs AND plant trees for shade, or use windows for natural breeze. Answer should include observation from the activity and two practical applications.

    True or False: Recyclers throw away old newspapers instead of reusing them. Give a reason for your answer. [2 marks]

    False — recyclers collect old newspapers and items to reuse or recycle them. This is mentioned in the waste management section where the chapter explains what recyclers do with old items.

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