1. evaporation of water is _______ as heat is absorbed to convert it into water vapour. * this is a required question
2. the flaky reddish brown-substance formed on the surface of an iron object is called _________. *
3. when carbon-di-oxide gas is passed through lime water it turns ___________. *
4. changes in which new substances are formed is called __________ changes. * 5. ____________ is a special thermometer to measure temperature. *
6. ___________ feeds on small birds and lizards using its beak and narrow tongue. *
7. the seasonal journey undertaken by many animals is called _____________. *
8. soil is formed by the ____________ of rocks. *
9. the number of times air is inhaled or exhaled in a minute is called _________. *
10. oxygen combines with haemoglobin to form ____________. *
Answers
Answer:
vaporisation
rust
acidic
chemical
reptiles
migration
deformation
60
iron
1. Evaporation of water is an Endothermic process as heat is absorbed to convert it into water vapor.
2. The flaky reddish-brown substance formed on the surface of an iron object is called Rusting.
3. When carbon-di-oxide gas is passed through lime water it turns milky due to the formation of a white precipitate in form of calcium carbonate.
4. Changes in which new substances are formed are called chemical changes.
5. Clinical thermometer is a special thermometer to measure temperature.
6. Shrikes feed on small birds and lizards using their beak and narrow tongue.
7. The seasonal journey undertaken by many animals is called Migration.
8. Soil is formed by the weathering of rocks.
9. The number of times the air is inhaled or exhaled in a minute is called the Breathing rate.
10. Oxygen combines with hemoglobin to form Oxyhaemoglobin.
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