EASY
7th CBSE
IMPORTANT
Earn 100

Classify the following as chemical or physical changes.
Cutting of a cloth with scissors

Important Questions on Physical and Chemical Changes

MEDIUM
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 6 - Physical and Chemical Changes>Worksheet SA>Q D
Classify the following as chemical or physical changes.
Burning of paper.
MEDIUM
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 6 - Physical and Chemical Changes>Worksheet SA>Q D
Classify the following as chemical or physical changes.
Charging of a battery.
MEDIUM
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 6 - Physical and Chemical Changes>Worksheet SA>Q D
Classify the following as chemical or physical changes.
Breathing.
EASY
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 6 - Physical and Chemical Changes>Worksheet SA>Q E
Differentiate between the following.
Physical and chemical change.
MEDIUM
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 6 - Physical and Chemical Changes>Worksheet SA>Q E
Differentiate between the following.
Electroplating and making alloys.
MEDIUM
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 6 - Physical and Chemical Changes>Worksheet SA>Q F
Give two examples of desirable chemical changes.
MEDIUM
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 6 - Physical and Chemical Changes>Worksheet SA>Q F
List the conditions necessary for rusting.
MEDIUM
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 6 - Physical and Chemical Changes>Worksheet SA>Q F
Write three methods which can be used to prevent rusting