Year 3- Science
Term 3
2018/2019
Part I
Underline the correct answer.
1. Which part doesn’t belong to a human?
a. Ears
b. Legs
c. Roots
d. Fingers
2. How many main parts are there in a plant?
a. 7
b. 3
c. 6
d. 5
3. Rita cut off the roots of a plant and planted the plant back. What can you observe
after 3 days?
a. Flowers bloomed.
b. Fruits were visible.
c. Plant looked unhealthy.
d. Plant has grown taller.
4. Identify the following cross section of the plant.
a. Fruit
b. Seed
c. Root
d. Stem
5. What is the common function of roots and a stem?
a. Make food
b. Absorb water
c. Transport food
d. Make flowers
6. Which plant part produce oxygen?
a. Stem
b. Root
c. Leaf
d. Flower
7. Which animal gets attracted to flowers?
a. Dog
b. Worm
c. Fish
d. Insects
8. John kept plant A in the dark and plant B in a sunny place. Which plant was grown
healthily?
A B
a. Plant A
b. Plant B
c. Both plant A and B
d. None of the plants
9. What is not needed to make Hydroponic plants?
a. Water
b. Nutrients
c. Soil
d. Long tubes or blocks
10. Plants grown in Hydroponics are
a. Useful in farming.
b. Very unhealthy.
c. Can’t grow in smaller areas.
d. Grown mainly on the land.
11. By which material does paper make?
a. Cement
b. Woody trees
c. Plastic
d. Polythine
12. How does leather is made?
a. From woody trees
b. From feathers
c. From cotton
d. From animal skins
13. Which one is heavier?
b.
a.
c.` d.
14. Find what is suitable for A and B.
materials
heavy light
iron A B
a. Cotton wool, paper
b. Paper, glass
c. Glass, cotton wool
d. Glass, steel
15. Which one is not a man- made material?
a. b.
d.
c.
(15 × 2 marks = 30 marks)
Part II
(1) Fill in the blanks using the given words in the box.
stem plant Mangrove wood flower
a. A chair can be made of ________________________.
b. Roots anchor the ______________ firmly to the ground.
c. Stem of the tree is rough than the _________________________.
d. Climbing __________________________ needs support to grow.
e. _______________________ trees grow in soft mud which doesn’t contain Oxygen.
(5 × 2 marks = 10 marks)
(2) Match the correct answer.
Roots can make new plants * *rubber
A main part of a leaf * * wood
A plant which survives in the desert * *curry leaves
A natural material to make paper * * stick
A natural material to make gloves * *cactus
(5 × 2 marks = 10 marks)
(3) Write true or false.
I) Popcorn is made from plant stem. (……….)
II) Rubber band cannot be stretched easily. (……….)
III) The amount of coldness around us is known as temperature. (……….)
IV) Crude oil is used to make houses. (……….)
V) Chlorophyll is found upper side of the leaf. (……….)
(5 × 2 marks = 10 marks)
4) Ann was given a plant dip in water. The teacher wanted to do some changes to the plant given
to Ann. Follow the directions and do the necessary changes in the given picture.
i) Teacher gave a pink colour ink to Ann. She asked Ann to mix that ink to the water.
ii) What would be the colour of the water now? _______________________ (1 mark)
ii) Colour the water in the glass with the suitable colour.
( 2 marks)
iii) Teacher asked Ann to draw get the observation after a week. Show the observation in the picture
by using correct colours.
( 2 marks)
iv) Is there a change in the water level?
(yes/no) (1 mark)
v) What has happened to the water level in the cup?
( It has increased/ It has decreased/ No changes) ( 1 mark)
vi) Why is there a change in the water level?
___________________________________________________________ (2 marks)
vii) What can you observe if you cut open the celery stem?
______________________________________________________ (1 mark)
(10 marks)
5) Andrew wanted to make. He used these materials to make the catapult.
Materials-
A piece of wood
A flat rubber band
a. Name the materials in the given catapult.
b. Andrew used the catapult to hit a mango using a stone.
i. Which one is heavier?
(rubber / stone)
ii. Which one is flexible?
(Wood/ rubber)
iii. Which one is floating?
( rubber/ stone)
iv. Which one doesn’t get damaged easily?
( mango/ stone)
v. Arrange the materials rubber, mango, stone and wood according to the order of
hardness.
Hardest Softest
________________ , ________________ , ________________ , ________________
(10 marks)
