Physical Change: Boiling::Chemical Change: ______.

Fill in the Blanks

Physical Change: Boiling::Chemical Change: Burning

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Chapter 3 Changes Around Us
Evaluation | Q VI. 1. | Page 54

Classify the changes involved in the following process as physical or chemical changes:

Photosynthesis

Tick the most appropriate answer.

5. Photosynthesis requires

Write true or false for the statement

Decomposition of leaves is a fast change.

Write short answer.

What are man-made changes ?

Make a list of different types of changes with example.

Give two examples of periodic changes.

Classify the following as physical or chemical change :

Formation of curd from milk

Classify the following as physical or chemical properties

The composition of a sample of steel is 98% iron, 1.5% carbon and 0.5% other elements.

Paheli’s mother made a concentrated sugar syrup by dissolving sugar in hot water. On cooling, crystals of sugar got separated. This indicates a –

Iron pipes coated with zinc do not get rusted easily.