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WorksheetsPA III Revision Science V
Total questions: 13
Worksheet time: 8mins
1. Marble is a __________ rock.
hard
soft
1. Granite is used for
making statues
cooking
1. Chalk is a___________
kind of rock
part of plant
-_________ is the hardest mineral.
Diamond
Iron
1. The (a) is the uppermost layer of the earth.
1. Human beings cause soil erosion by (a) .
1. The thick blanket of air that surrounds our planet is called (a) .
1. (a) is the second layer jet aircraft generally fly in this layer.
1. Plants prepare their food with the help of carbon dioxide, water and sunlight. The process is called_______________.
photosynthesis
chemical fertilizer
1. The process of changing of water or any other liquid to vapor by heating is called (a) .
What is first chapter name
Rocks and minerals
Soil erosion and conservation
Our life supports
What is the % of nitrogen in the air
72%
21%
90%
What is the % of oxygen in the air.
21
35
72
None above mentioned
