State whether the following statements are true or false. In case a
statement is false, write the corrected statement in your notebook.
(a) Cutting a log of wood into pieces is a chemical change. (True/False)
(b) Formation of manure from leaves is a physical change. (True/False)
(c) Iron pipes coated with zinc do not get rusted easily. (True/False)
(d) Iron and rust are the same substances. (True/False)
(e) Condensation of steam is not a chemical change. (True/False)
A trapezium with 3 equal sides and one side double the equal side
can be divided into __________ equilateral triangles of _______ area.
The perimeter of a rectangle becomes __________ times its original
perimeter, if its length and breadth are doubled.
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