RISING NEPAL SECONDARY BOARDING SCHOOL
Class:- 7 FIRST TERMINAL EXAMINATION 2076 F.M:50
Time:- 2hrs. Sub:- Science P.M:16
Attempt all the questions.
1. Fill in the blanks: - 3
a) We can use a formula to calculate the area of ………………. objects.
b) The shortest distance between any two points is called ……………….
c) The unit of acceleration is ……………. in SI system.
d) A wheel barrow belongs to the ………………. class lever.
e) ……………. rocks have no any fossils of animals and plants.
f) In order to perform life process, living beings need ……………….
2. State whether the following statements are True or False: 3.5
a) Beam balance is an instrument to measure time.
b) Centripetal force is center seeking force.
c) Distance is a vector quantity.
d) Diamond is a metamorphic rock.
e) Unicellular organisms breathe through their general body surface.
f) The SI unit of force is dyne.
g) 1 m is equal to 1000 mm.
3. Match the following: 4.5
Gills Bat
Lungs Cactus
Moist skin Amoeba
Stomata Cockroach
Tubes Earthworm
General body surface Fish
Trypsin Small intestine
Villi Excretory organ
Kidney Pancreas
4. Tick (✔) the best answer: 5
a) Measuring cylinder is used to measure
i) length ii) mass iii) volume of any liquid iv) none of these
b) Which of the following is a vector quantity?
i) mass ii) density iii) pressure iv) force
c) Which of the following is known as a double inclined plane?
i) lever ii) pulley iii) wheel and axle iv) wedge
d) How many types of lever are there?
i) 1 ii) 2 iii) 3 iv) 4
e) Which of the following organ produces bile juice?
i) Liver ii) Lungs iii) Stomach iv) Small intestine
5. Define the following terms: 2
i) Area ii) Mass iii) Time iv) Volume
6. Solve the numerical problems: 4
a) The length of a room is 5m and its breadth is 3m. How many square meters of carpet is required to cover the room?
b) The length of the edge of a cubical dice is 2cm. How much paper is required to cover it?
c) How much is the velocity of a body when it moves through 100m in 5 seconds?
d) A body changes its velocity from 10 m/s to 30 m/s in 4 seconds. Find the acceleration produced on the body.
7. Differentiate between: 4
a) Distance and displacement
b) First class lever and second class lever
8. Name the respiratory organs for the following organisms: 4
i) Frog ii) Fish iii) Earthworm iv) Amoeba
v) Hydra vi) Mustard plant vii) Insects viii) Worms
9. Answer the following questions: 20
a) What is SI unit? Write the SI unit of length, mass and time.
b) How do you find the area of irregular object?
c) Define acceleration and write its unit.
d) What is a simple machine? Why do we use simple machine?
e) Define a lever. Give an example of each of three classes of lever.
f) In what way is the wheel and axle useful to us?
g) What are rocks? Describe briefly about the structure of rocks.
h) How do igneous rocks form?
i) What are the uses of rocks? Write any four uses.
j) Draw a well – labelled diagram of alimentary canal of human beings.
The End