HARD
6th CBSE
IMPORTANT
Earn 100

When a candle burns, both physical and chemical changes occur. Explain.

Important Questions on Changes Around Us

MEDIUM
6th CBSE
IMPORTANT
Explain the difference between physical and chemical changes
MEDIUM
6th CBSE
IMPORTANT
Explain the difference between reversible and irreversible changes.
EASY
6th CBSE
IMPORTANT
Plants prepare their own food by using carbon dioxide and water in the presence of sunlight and chlorophyll.
(a) Is it a chemical change or a physical change?
(b) How many substances are taking part in the change? Name these substances.
(c) Name the form of energy involved in this change.
 
EASY
6th CBSE
IMPORTANT
Give an example of reversible change which is useful to us.
EASY
6th CBSE
IMPORTANT
Give an example of irreversible change which is useful to us.
EASY
6th CBSE
IMPORTANT
Growth in plants and animals is
EASY
6th CBSE
IMPORTANT
Which of the following is a physical and reversible change?
EASY
6th CBSE
IMPORTANT
Which of the following is a physical and irreversible change?