1. Find the following lists from the passage and copy them.
Everyday things made of glass:
- Light bulbs
- Bottles
- Jars
- Glasses (for drinking and reading)
- Windowpanes
- Marbles
What you can do with hot liquid glass:
- Pour it into molds
- Roll it into sheets
- Press it
- Blow it into different shapes
- Draw it into thin fibers (glass wool)
Names of colors of glass:
- Blue
- Violet
- Red
- Green
- Yellow
- Pink
- Orange
- Black
- White
2. Guess the meaning of the following words from the passage:
- Molten – Something that is melted due to high heat.
- Transparent – Something you can see through.
- Impermeable – Something that does not allow water or liquids to pass through.
- Impart – To give or add something (example: glass does not impart any smell to food).
- Recyclable – Something that can be reused after processing.
3. Write short notes on the following using suitable diagrams.
How glass is made:
- Glass is made by heating sand, soda, and lime in a furnace until it melts.
- The melted glass is then shaped and cooled to become hard.
How glass is shaped:
- Hot glass is shaped by pouring, rolling, pressing, or blowing into different objects.
- It can also be made into thin fibers (glass wool) or smooth sheets.
Some properties of glass:
- Transparent – You can see through it.
- Strong and hard – Can hold weight.
- Impermeable – Does not allow water to pass through.
- Smooth – Can be cleaned easily.
- Recyclable – Can be reused to make new glass.
4. Find out how paper and plastic are recycled.
Paper Recycling:
- Old paper is collected and cleaned.
- It is mixed with water and chemicals to make pulp.
- The pulp is pressed, dried, and turned into new paper.
Plastic Recycling:
- Used plastic is collected and sorted.
- It is melted and reshaped into new plastic products.
- Recycling plastic helps reduce pollution.
5. Prepare a poster each to urge people to –
(a) Use glass carefully – ‘Handle Glass with Care!’
Slogan: “Glass is useful, but breaks with ease, Handle it with care, if you please!”
(b) Recycle glass.
Slogan: “Recycle glass, save energy, and keep the Earth clean!”
Learning about Language
Write what the following do:
- Monkeys → Jump and climb.
- People → Walk and talk.
- Turtles → Swim slowly.
- Lions → Roar and hunt.
- Cats → Purr and chase mice.
- Girls and boys → Play and study.
Examples of verbs in the passage:
- Pour, mold, roll, press, blow, jump, swim, hunt, roar, purr, play.
Identify verbs in the sentences:
- It rained. (Verb: rained)
- It became dark. (Verb: became)
- She was tired. (Verb: was)
- He is happy. (Verb: is)
- The rabbit has red eyes. (Verb: has)
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