Class 7 science chapter 4 mcq

Which of the following is an example of a non living thing?
a) Flower
b) Bacteria
c) Water
d) Dog

Which organ of the human body pumps blood?
a) Lungs
b) Heart
c) Brain
d) Liver

Which of the following is a source of renewable energy?
a) Coal
b) Natural gas
c) Solar power
d) Nuclear power

Which part of the plant absorbs water and minerals from the soil?
a) Leaves
b) Stem
c) Roots
d) Flowers

What is the process by which plants make their food called?
a) Photosynthesis
b) Respiration
c) Transpiration
d) Reproduction

Which of the following is an example of a chemical change?
a) Melting ice
b) Dissolving salt in water
c) Burning wood
d) Cutting paper

Which of the following is a conductor of electricity?
a) Plastic
b) Glass
c) Copper
d) Wood

What is the unit of measurement for temperature?
a) Gram
b) Liter
c) Meter
d) Celsius

What is the process of conversion of a solid directly into a gas called?
a) Melting
b) Freezing
c) Evaporation
d) Condensation

Which of the following is an example of a natural magnet
a) Iron nail
b) Refrigerator magnet
c) Compass needle
d) Electromagnet