What a Tank!

Given: The question asks about the use of a water tank.

Answer: We use a water tank to store water. The stored water is used for our daily needs such as drinking, cooking, bathing, washing clothes, and cleaning.

Given: The question asks about the location of Punjab on the map of India.

Answer: Punjab is located in the north-western part of India. It shares its borders with Jammu & Kashmir and Himachal Pradesh to the north, Haryana and Rajasthan to the south and east, and Pakistan to the west.

Given: The question is about the construction of water tanks in Punjab.

Answer: The water tanks in Punjab are made of cement. They are built in unique and creative shapes such as a rooster, a tractor, a giant football, and many other interesting forms. Skilled workers shape the cement into these designs.

Given: The question asks how the shapes of water tanks reflect the identity of the owners.

Answer: The unique shapes of the water tanks reflect the interests, professions, and personalities of the house owners. For example, a farmer might have a tractor-shaped tank, while someone who loves sports might have a football-shaped tank. These creative designs show what the owners value and take pride in, making each tank a personal symbol of identity.

Given: The question asks about other methods of storing water besides an overhead tank.

Answer: Yes, there are several other ways of storing water:
- Underground sumps or reservoirs — large tanks built below the ground to store water.
- Ponds and lakes — natural or man-made bodies of water.
- Dams — large structures built across rivers to store huge amounts of water.
- Rainwater harvesting systems — collecting and storing rainwater in tanks or pits.
- Buckets, drums, and pots — used at home to store small amounts of water.
- Wells — dug into the ground to collect groundwater.

Given: This is a creative, personal-response question.

Answer (Sample): If I had to build a water tank, I would make it look like a giant book, because I love reading. A book-shaped tank would remind everyone in my neighbourhood that knowledge, like water, is precious and should never be wasted. It would also make my home look unique and interesting. The pages of the book could be painted with colourful illustrations, making it a beautiful piece of art as well as a useful structure.

*(Note: Students may write their own creative answers. Any well-reasoned response is acceptable.)*

Concept: A contraction combines two words, replacing missing letters with an apostrophe (').

$$\text{do not} \rightarrow \textbf{don't}$$

The letter 'o' in 'not' is replaced by an apostrophe.

Concept: Contraction — missing letters replaced by an apostrophe.

$$\text{is not} \rightarrow \textbf{isn't}$$

The letter 'o' in 'not' is replaced by an apostrophe.

Concept: Contraction — missing letters replaced by an apostrophe.

$$\text{are not} \rightarrow \textbf{aren't}$$

The letter 'o' in 'not' is replaced by an apostrophe.

Concept: Contraction — missing letters replaced by an apostrophe.

$$\text{cannot} \rightarrow \textbf{can't}$$

The letters 'no' are replaced by an apostrophe.

Concept: Contraction — missing letters replaced by an apostrophe.

$$\text{could not} \rightarrow \textbf{couldn't}$$

The letter 'o' in 'not' is replaced by an apostrophe.

Concept: Contraction — missing letters replaced by an apostrophe.

$$\text{did not} \rightarrow \textbf{didn't}$$

The letter 'o' in 'not' is replaced by an apostrophe.

Concept: Replace the underlined full forms with their contractions.

Rewritten passage:

Partho isn't feeling well today. His parents have decided that he will stay at home till he gets better. Partho is bored and can't stay at home anymore. He decides to ask his grandmother if he can go outside, but he thinks she, too, wouldn't agree.

Contractions used:
- is not → isn't
- cannot → can't
- would not → wouldn't

Concept: Replace the underlined full forms with their contractions.

Rewritten passage:

It's a rainy day, and Tina isn't happy. She can't go out to play with her friends. Her brother doesn't want to play indoors either. They have decided to watch a movie instead. Their mother says she will make popcorn for them.

Contractions used:
- It is → It's
- is not → isn't
- cannot → can't
- does not → doesn't

Given: The lesson introduces exclamatory sentences that express strong emotions.

Four emotions:
1. Joy / Happiness — e.g., Hurrah! We won!
2. Surprise / Amazement — e.g., Wow! What a beautiful painting!
3. Sadness / Grief — e.g., Oh no! That is terrible!
4. Anger / Frustration — e.g., How dare you do that!

These emotions are often expressed using exclamatory sentences ending with an exclamation mark (!).

Concept: Exclamatory sentences express strong emotions and end with an exclamation mark (!).

Note to students: You should find sentences from your own Grade 4 English textbook. Below are five sample exclamatory sentences with the emotions they express:

| Sentence | Feeling / Emotion |
|---|---|
| That's so creative! | Amazement / Wonder |
| Hurrah! We have won the game! | Joy / Excitement |
| Oh no! I forgot my homework! | Worry / Distress |
| What a beautiful garden this is! | Admiration / Delight |
| How brave the soldier was! | Admiration / Pride |

*(Students should replace the sample sentences above with actual sentences found in their Grade 4 English textbook.)*

Given: Pictures and names of male, female, and young ones of five animal families.

Summary Table of Animal Family Names:

| Animal | Male | Female | Young One |
|---|---|---|---|
| Lion family | Lion | Lioness | Lion cub |
| Tiger family | Tiger | Tigress | Tiger cub |
| Chicken family | Rooster | Hen | Chick |
| Cattle family | Bull | Cow | Calf |
| Horse family | Stallion | Mare | Foal |

Key learning: Each animal has a specific name for its male, female, and young one. Learning these names helps us describe animals correctly.

Given: We need to identify ways water is wasted and suggest solutions.

Three examples of water wastage and ways to stop it:

1. Wastage: Leaving the tap running while brushing teeth.
Solution: Use a tumbler or mug with only the water needed. Turn off the tap when not in use.

2. Wastage: Taking very long showers uses a large amount of water.
Solution: Take shorter showers or use a bucket and mug instead of a shower.

3. Wastage: Watering plants with a hose pipe wastes a lot of water.
Solution: Use a watering can with just the right amount of water, or water plants in the evening to reduce evaporation.

*(Students may discuss more examples in their groups and share additional points with the class.)*

Part 1: 'What a tank!' and 'Water tank'

- Do both phrases use the word 'tank'? Yes
- Do they mean the same thing? No
- 'What a tank!' is an exclamatory sentence expressing surprise or admiration about something (in this chapter, the creatively shaped water tanks).
- 'Water tank' is a noun phrase referring to a container used to store water.

Part 2: 'I scream' and 'Ice cream'

- Do both phrases sound the same? Yes (when spoken quickly, they sound alike)
- Do they mean the same thing? No
- 'I scream' means a person is shouting or crying out loudly.
- 'Ice cream' is a sweet frozen dessert.

Key Learning: Words or phrases can sound the same (or similar) but have completely different meanings. This is called a homophone or a sound-alike pair. Context helps us understand the correct meaning.

Correct Answer: (b) There was no water in the tap.

Justification: When Suma went to brush her teeth in the morning and turned on the tap, no water came out. This surprised her because she had not expected the water supply to be cut off.

Correct Answer: (b) They bought bottles and waited for tankers.

Justification: The passage states that some people ran to the nearby shop to buy water bottles, while others waited near a water tanker that came from another place. This is how people in Suma's neighbourhood managed without water.

Correct Answer: (b) To never waste water again.

Justification: The passage clearly states: 'Suma felt very happy and promised herself that she would never waste water again.' She also decided to tell her friends how precious water is.

Correct Answer: (b) Poster-making and planting trees.

Justification: According to the passage, Suma's school planned activities like poster-making, planting trees, and a water-saving competition during the Water Conservation Week.

Correct Answer: (c) To fix a rainwater harvesting system.

Justification: The passage states: 'She asked her parents to set up a rainwater harvesting system at home. Her parents agreed happily.' This shows that Suma wanted to conserve rainwater at home.

Sample Poster:

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🌊 SAVE OUR WATER TANKS — A COMMUNITY AWARENESS CAMPAIGN 🌊

Slogan: *'Save Tanks, Save Lives! — Every Drop Counts!'*

Why are water tanks important?
- ✅ They store clean water for our daily needs — drinking, cooking, and bathing.
- ✅ They ensure water supply during shortages and dry seasons.
- ✅ Clean tanks prevent waterborne diseases like cholera and typhoid.
- ✅ Well-maintained tanks reduce water wastage in our community.
- ✅ They support rainwater harvesting and help conserve natural water sources.

JOIN US FOR A TANK CLEANING DRIVE!

📅 Date: Sunday, 22nd June 2025
⏰ Time: 8:00 AM – 11:00 AM
📍 Place: Community Park, Near Main Gate, Sector 5

Bring your gloves, brushes, and enthusiasm!
Together, we can make a difference.

*'A clean tank today — safe water tomorrow!'*

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*(Students should draw and colour their own poster in the space provided in the textbook, using this content as a guide.)*

Given: We need to find words ending in '-er'.

Ten words ending with '-er':

| ...er | ...er | ...er |
|---|---|---|
| water | teacher | flower |
| butter | river | ladder |
| tiger | mother | letter |
| finger | — | — |

Complete list:
1. water
2. teacher
3. flower
4. butter
5. river
6. ladder
7. tiger
8. mother
9. letter
10. finger

*(Note: The textbook also asks students to find words ending in other suffixes shown in pictures. Students should write those words in their notebooks as instructed.)*

Given: We need to research and present techniques for cleaning water tanks.

Techniques for Cleaning Water Tanks:

Step-by-step process of cleaning a water tank:

1. Empty the tank: First, all the water in the tank is drained out completely.

2. Scrubbing: The inner walls, floor, and corners of the tank are scrubbed thoroughly using stiff brushes to remove dirt, algae, and slime.

3. Washing: The tank is washed with clean water to remove all loosened dirt.

4. Disinfection: A mild chlorine solution (bleaching powder mixed with water) is applied to the inner surface of the tank to kill germs and bacteria. This is left for a few hours.

5. Rinsing: The tank is rinsed thoroughly with clean water to remove all traces of the disinfectant.

6. Drying: The tank is allowed to dry before being refilled.

7. Refilling: Clean, treated water is filled back into the tank.

Important tips:
- Water tanks should be cleaned at least once every six months.
- Always use safe, food-grade disinfectants.
- Professional tank-cleaning services use high-pressure jets and vacuum pumps for large tanks.
- Keep the tank covered at all times to prevent contamination.

*(Students should prepare a colourful chart with pictures/photographs and display it in the classroom.)*