SCIENCE QUIZ
MCQs based NCERT Class 7 Science Chapters
Q1: The vessels which carry carbon dioxide rich blood from all parts of the body back to the heart are called
(a) Veins
(b) Arteries
(c) Capillaries
(d) Valves
Q2: There are some chemicals secreted by an insect to attract attention of other members of species. These are called
(a) vitamins
(b) hormones
(c) fibronin
(d) pheromones
Q3: Which gas is produced when sludge is digested?
(a) Methane
(b) Ethane
(c) Propane
(d) Butane
Q4: What do we call the network of several food chains connecting each other?
(a) Food Web
(b) Food Chain
(c) Food Cycle
(d) Trophic Level
Q5: Nagma was playing basketball with her team mates. Just after the game her pulse rate will
(a) increase
(b) decrease
(c) remains same
(d) none of these