Rising Nepal Secondary Boarding School

Second Terminal Examination 2075

Class :4 F.M. 50

Time: 2 hrs. Sub: Science P.M. 18

Attempt all the questions.

1. Fill in the blanks: 3

a) When the eggs of a frog hatch, ……………… come out.

b) Plants that live on land are ……………….

c) Aqua means of ………………

d) Water lily is an example of …………………

e) A ………… has seed inside it.

f) The production of new plants by means of root, stem and leaves of plant is called ……………….

2. State whether ‘True’ or ‘False’: - 3

a) Mosses bear flower.

b) Mushroom cannot make their own food.

c) Wheat is an angiosperms plant.

d) Some fungi cause diseases.

e) Non – green plants are called fungi.

f) Plants in which seeds are enclosed in fruits are known as gymnosperms.

3. Match the following: 5

Column A Column

Housefly Egg

Caterpillar Maggot

Cocoon Larva

Cockroach Nymph

Yolk Pupa

4. Write at least two examples of plants growing in the following areas: 5

i) Deserts ii) Mountains iii) Plains

iv) Places with heavy rainfall v) Swampy / Marshy areas

5. How do the following things help these plants to survive? 4

a) Roots of a Mangrove tree

b) Long roots in desert plants

c) The sloppy shape of conifers

d) Modification of leaves into sharp spines in cactus

6. Classify the following plants into aquatic plants: 3

Hydrilla Algae Grass

Water lily Water hyacinth Sea weeds

7. Give reasons: 4

a) Rice is called a flowering plant.

b) Mushroom is a non – green plant.

c) Fern is called a non – flowering plant.

d) Fungi can’t make their food themselves.

8. What are they called? 3

a) Plants growing in desert ……………….

b) Trees that do not lose their leaves in winter ……………

c) Roots that grow above the soil to absorb air in Mangrove plants …….

9. Answer the following questions: 20

a) What are mammals?

b) Mention a difference between algae and fungi.

c) Why do some trees lose their leaves in winter?

d) What do you mean by Xerophytes? Give two examples of it.

e) Why do trees growing on mountains have needle like leaves?

f) Write any two features of lotus plant.

g) Why the stems of floating plants are spongy?

h) Why do fixed plants have waxy coating on its surface?

i) What is meant by germination of seeds?

j) Name any three plants that grow by vegetative reproduction.

The End