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CBSE Sample Paper Class 6 Science Garbage in, Garbage out
Chapter 16
Garbage in, Garbage out
Questions
(1) Answer the following questions (10×1)
(a) What is a landfill?
(b) What happens when garbage reaches the landfill?
(c) What happens to the useful components of garbage?
(d) What is compost?
(e) Should we burn dried up leaves or dried parts of plants?
(f) Which organism is called farmer’s friend?
(g) What is vermicomposting?
(h) Which food should we give to the red worms?
(i) Instead of teeth what does redworms have?
(j) Does plastic rot?
(2) State true or false of the following sentences (10×1)
(a) Garbage cannot be reused.
(b) All kinds of garbage are dumped in the landfill.
(c) Reusable garbage are used to make compost.
(d) Compost is harmful for our plants.
(e) Burning of dried leaves are very healthy for us.
(f) Vermicomposting is making of one type of compost.
(g) In vermicomposting redworms are used.
(h) We should use meat items for vermicomposting.
(i) We should recycle paper.
(j) Plastics are good for our environment.
(3) Match the columns (8×1)
Column A |
Column B |
Vermicomposting |
Usable garbage |
Landfill |
Teeth like structures |
Compost |
Cancer |
Burning leaves |
Place where garbage is collected |
Recycling |
Redworms |
Burning plastic |
Good for environment |
Gizzard |
Non-usable garbage |
Plastic bags |
Harmful |
(4) Fill in the blanks
(a) In _______ garbage from all places are thrown into.
(b) Garbage are two types, _______ and _______ garbage.
(c) In vermicomposting _______ are used.
(d) We shouldn’t use _______ and ________ preparations for vermicomposting.
(e) Redworms have teeth like structures called _________.
(f) Bags made of ________ causes harm to our environment.
(g) Burning plastic can cause _________.
(h) We should ________ paper.
(i) Consuming food from ________ bags could be harmful for us.
(j) Recycling is ______ for environment.
(5) Make a list of things we use everyday and state either they are usable or non-usable
Name |
Made of | Usable |
Non-usable |
Marking Scheme:
(1) Answer the following questions (10×1)
(a) What is a landfill?
Answer – A landfill is an open area where all the garbage collected by safai karmacharis are dumped into.
(b) What happens when garbage reaches the landfill?
Answer – When garbage reaches the landfill, they are separated into usable and non-usable materials.
(c) What happens to the useful components of garbage?
Answer – Useful components are used to make compost.
(d) What is compost?
Answer – Compost is a manure made by rotting and decomposed organic material which provide nutrients to plants.
(e) Should we burn dried up leaves or dried parts of plants?
Answer – No, we shouldn’t burn dried up leaves or dried parts of plants. Because the smoke will produce by this could be harmful to us.
(f) Which organisms are called farmer’s friend?
Answer– Earthworms are called farmer’s friend. This is because they help in providing nutrients to the plants which helps in farming.
(g) What is vermicomposting?
Answer – Vermicomposting is a method in which redworms are used to prepare compost.
(h) Which food should we give to the red worms?
Answer – We should give vegetable wastes, fruit peels to the redworms.
(i) Instead of teeth what does redworms have?
Answer – Instead of teeth redworms have a structure called gizzard.
(j) Does plastic rot?
Answer – No, plastic does not rot.
(2) State true or false of the following sentences (10×1)
(a) Garbage cannot be reused.
Answer – False
(b) All kinds of garbage are dumped in the landfill.
Answer –True
(c) Reusable garbage are used to make compost.
Answer –True
(d) Compost is harmful for our plants.
Answer – False
(e) Burning of dried leaves are very healthy for us.
Answer – False
(f) Vermicomposting is making of one type of compost.
Answer – True
(g) In vermicomposting redworms are used.
Answer – True
(h) We should use meat items for vermicomposting.
Answer –False
(i) We should recycle paper.
Answer – True
(j) Plastics are good for our environment.
Answer – False
(3) Match the columns (8×1)
Column A |
Column B |
Vermicomposting |
Redworms |
Landfill |
Place where garbage is collected |
Compost |
Usable garbage |
Burning leaves |
Harmful |
Recycling |
Good for environment |
Burning plastic |
Cancer |
Gizzard |
Teeth like structures |
Plastic bags |
Non-usable garbage |
(4) Fill in the blanks (10×1)
(a) In landfill garbage from all places are thrown into.
(b) Garbage are two types, usable and non-usable garbage.
(c) In vermicomposting redworms are used.
(d) We shouldn’t use milk and meat preparations for vermicomposting.
(e) Redworms have teeth like structures called gizzard .
(f) Bags made of plastic causes harm to our environment.
(g) Burning plastic can cause cancer .
(h) We should recycle paper.
(i) Consuming food from plastic bags could be harmful for us.
(j) Recycling is good for environment.
(5) Make a list of things we use everyday and state either they are usable or non-usable (12×1)
Name |
Made of | Usable | Non-usable |
Pencil | Wood | ✔ |
|
Key |
Metal | ✔ | |
Plastic bag | Plastic |
✔ |
|
Chair |
Plastic | ✔ | |
Cloths | Yarns | ✔ |
|
Books |
Paper | ✔ | |
Cardboard box | ✔ |
|
|
Vegetable peel |
✔ | ||
Bucket | Plastic |
✔ |
|
Pen |
Plastic | ✔ | |
Tumbler | Glass |
✔ |
|
Bulb |
Glass |
✔ |