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Class 4 How Things are Made worksheet
CBSE Science. How paper is made, recycled paper, natural colours, kinds of paper and their uses, Braille, the 5Rs of waste. Every sheet has 20 questions in three sections and an answer key, and the numbers change every time.
Sample questions
Real questions from this chapter, as the app sets them. Tap Answer to see the answer and working.
Section A · multiple choice
- 1.
The paper in our books is made mainly from:
- sand
- iron
- melted plastic
- wood pulp from trees
Answer
(d) wood pulp from trees
- 2.
Which of the 5Rs is this: writing on both sides of a sheet of paper?
- recycle
- repurpose
- reduce
- reuse
Answer
(c) reduce
- 3.
Braille paper is mainly used for:
- wrapping gifts
- making packing boxes
- cleaning and wiping
- reading by touch
Answer
(d) reading by touch
Section B · short answer
- 4.
What is paper made from?
Answer
Mostly from wood pulp from trees; it can also be made from recycled paper or banana fibre.
- 5.
Which R is it (refuse, reduce, reuse, repurpose or recycle)? (a) carrying the same cloth bag to the shop every time (b) making old newspapers into new handmade paper
Answer
(a) reuse (b) recycle
Section C · long answer
- 6.
Describe how to make recycled paper at home. Why is it good for the environment?
Answer
Tear old newspapers, soak them overnight with fenugreek seeds, mash into a pulp, spread and roll into thin sheets, and dry. It saves trees, water and energy and reduces waste.
Fresh sheets for your child
In the app, every How Things are Made sheet is new: the app remembers the questions your child has already had and leaves them out. Print the sheet as a PDF, or use notebook mode and write the answers in a notebook.
Coming soon for Android and iPhone.