A stretched rubber band comes back to normal shape. It is an example for ________.

Question

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Solution

A stretched rubber band comes back to normal shape. It is an example for Reversible changes.

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Classification of Change: Reversible and Irreversible Changes

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Q II. 2.Q II. 1.Q II. 3.

Chapter 4: Science in Everyday Life - Evaluation [Page 137]

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Samacheer Kalvi Science - Term 1 [English] Class 5 TN Board

Chapter 4 Science in Everyday Life
Evaluation | Q II. 2. | Page 137

RELATED QUESTIONS

Very Short Answer Type Question:
Give two examples of reversible changes.

Short Answer Type Question:
What is a physical change? Explain with example.

Circle the odd one.

What is reversible change?

Differentiate reversible and irreversible changes.

When a candle is lit the following changes are observed.

Wax melts.
Candle keeps burning.
The size of the candle decreases.
The molten wax solidifies
Which of the changes can be reversed? Justify your answer

Rolling of chapati and baking of chapati are the changes that ______.

Give one example of change which occurs on heating but can be reversed.

Paheli mixed flour and water and

made a dough,
rolled the dough to make a chapati,
baked the chapati on a pan,
dried the chapati and ground it in a grinder to make powder.

Identify the changes (i) to (iv) as the changes that can be reversed or that cannot be reversed.

lt was Paheli’s birthday, her brother Simba was helping her to decorate the house for the birthday party and their parents were also busy making other arrangements. Following were the activities going on at Paheli’s home:

Simba blew balloons and put them on the wall.
Some of the balloons got burst.
Paheli cut colourful strips of paper and put them on the wall with the help of tape.
She also made some flowers by origami (paper folding) to decorate the house.
Her father made dough balls.
Mother rolled the dough balls to make puries.
Mother heated oil in a pan.
Father fried the puries in hot oil.

Identify the activities at Paheli’s home as those that can be reversed and those which cannot be reversed.