Question

Distinguish between the following.
a) Physical change and chemical change
b) Periodic change and non-periodic change
c) Natural and man-made change

Answer 1

Hey dear,

● Answers -

# Physical change vs chemical change -
- In physical change, composition of substances remains same after. In chemical change, composition of substance changes.
- Physical change is generally reversible chemical change is not.

# Periodic change vs non-periodic change -
- Periodic change repeats after some specific time, non-periodic change don't.
- Examples :
Periodic change - day-night cycle
Non-periodic change - Freezing of water is

# Natural change vs Manmade change -
- Changes that occur due to environmental changes arr called natural changes. e.g. Storms, drought.
- Changes that occur to human intervention are called manmade changes. e.g. pollution.

Thanks for asking...