Question

022. Is it all physical change can be reversed? Justify your answer with exampld.
Q23. What is the difference between following changes-
a) Rolling of roti from dough and baking of roti.
b) Making an aeroplane by folding paper and cutting out an aeroplane from paper.
Q24. Energy is needed for a change. Give two examples to support this statement.
Q25. “Changes involve interaction” give an example to support this statement.​

Answer 1

Answer:

1 yes 2 a 3 yes 4 yes it can only