Question

1. Fill in the blanks :-

Removal of the undigested food from the body is called_____
(ii) Finger like projection in the wall of small instestine are called_____
(iii) All metals are good and plastics are of heat____
(iv) Temperature is measured in___
(v) The reaction between an acid and a base to from salt and
water is called ____ reaction.
(vi) Any sbstance that does not change the colour of an indicator
is called_____
(vii) HNO3 is a strong____
(viii) The crystal of copper sulphate is _____ in colour.
(ix) the change which can not be reversed is called_____
(x) Growth of plant is a change_____​

Answer 1

Answer:

Growth is an increase in size and mass during the development of an organism over a period of time. The plant growth can be both physical and chemical change. It is physical by increases in growth with the increased cell number.

Answer 2

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(i)Removal of the undigested food from the body is called egestion.

(ii) Finger like projection in the wall of small intestine are called villi.

(iii) All metals are good and plastics are good insulator of heat.

(iv) Temperature is measured in Kelvin,Fahrenheit and Degree Celsius.

(v)  The reaction between an acid and a base to from salt and water is called

neutralization reaction.

(vi) Any substance that does not change the colour of an indicator is called neutral substance.

(vii) HNO3 is a strong acid.

(viii) The crystal of copper sulphate is blue in colour.

(ix) The change which can not be reversed is called chemical change.

(x) Growth of plant is a chemical change.