4th science exam paper

लेखक:PRASHANT BHARGAVA SIR
CLASS - 4th
SUB - SCIENCE
Que-1 Tick (\checkmark) the correct — (5)
(i) The plants which grow on land are called —
(a) terrestrial
(b) fixed plants
(c) aquatic plants
(d) none of these
(ii) A ________ hatches out of an egg and begins to eat.
(a) cockroach
(b) caterpillar
(c) pupa
(d) butterfly
(iii) All human and animals depend on plants for —
(a) medicine
(b) food
(c) protein
(d) none of these
(iv) Gas taken in by the plants during photosynthesis is ________.
(a) oxygen
(b) carbon dioxide
(c) nitrogen
(d) carbon
Que-2 Fill in the blanks using the help of Box. — (5)
(spinach, necessary, plants, paddy, wheat, stem)
(i) Plants are ____________ for life on Earth.
(ii) We eat leaves of plants like ____________.
(iii) Grasses like ____________ and ____________ are called cereals.
(iv) ____________ are the basic sources of food.
(v) In Cactus, photosynthesis takes place in the ____________.
Que-3 Write True or False. — (5)
(i) Submerged plants have big and broad leaves. _____
(ii) Aquatic plants grow in water and in extremely wet soil. _____
(iii) Roots of marshy plants grow above the ground. _____
(iv) Stomata helps in gaseous exchange. _____
(v) Plants store food only in the fruits. _____
Que-3 Match the following. — (5)
| (A) | (B) |
|---|---|
| (i) Grasses like wheat and paddy | (a) Unusual Plant |
| (ii) Mushroom | (b) Green substance present in leaves |
| (iii) Food factories | (c) Green leaves |
| (iv) Chlorophyll | (d) Cereals |
Que-4 Answer the following questions. (Any 6) — (30)
(a) Name two ways in which animals reproduce.
(b) What is reproduction?
(c) What are 'floating plants'? Give any two examples.
(d) Why are seeds dispersed from one place to another place?
(e) Write some parts of a leaf.
(f) What is photosynthesis?
(g) How are plants and animals interdependent on each other?

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