Std_iv_-_annual__revision_sheet-evs_(2018-19).docx

INDIRA NATIONAL SCHOOL Tathawade, Pune Annual Exam Revision Sheet Environmental Studies

Std. : IV

Revision worksheet is as per the annual paper pattern

I) Fill in the blanks : 1. Sea water evaporates leaving behind _____________ . 2. ___________ makes the soil soft and helps the plants to grow well. 3. Birds use the _______ to lay their eggs. 4. A major population of the world face _____________ of drinking water. 5. Some roots go deep down the soil in search of _____________ 6. The hanging branches of the banyan tree provides _______________ to the trees. 7. The cloth is woven after the bundles of _____________ are put into looms. 8. Many craftsmen are leaving their village to work as ____________ in big cities. 9. _________________ is a spice used as a mouth freshner. 10. The process in which mother bird gives heat to the eggs by sitting on them is called _____________ II) Co-relate the following : 1. Carrot

:

root

::

tomato

: __________

2. Living

:

butterfly

::

non-living

: ___________

3. Salt

:

salty flavor

::

chilli

: ___________

4. Beak

:

food

::

claws

: ___________

5. Weeds

:

harmful

::

fertilizers

: ___________

6. Sea-water

:

salty

::

river water

: ___________

7. Unbaked bricks

:

olden days

::

baked bricks : ___________

8. Salt

:

dissolves in water

::

oil

: ___________

9. Body without hair :

internal ear

::

hairy body

: ___________

10. Buffalo

give birth to youngones

::

parrot

: ___________

:

III) Give one word for : 1. Campers, nomads, soldiers and construction workers live in this house. 2. One who makes the plan of a house according to the available space. 3. A source of underground water. 4. This instrument is used to loosen the soil. 5. Houses made of bricks, cement, iron, steel and concrete. 6. A bird that hatches eggs of other birds. 7. A large water body of salt water. 8. A house made on long pieces of wood or metal. 9. A bird that makes its nest in a hole in a tree trunk. 10. Cutting of trees is known as. IV) Give 2 examples of : 1. Spices used to add colour to food

__________, __________

2. Animals that give birth to youngones

___________, _________

3. Neighbouring countries of India

___________, __________

4. Non flowering plants

__________, __________

5. Rivers that flows in India

__________, __________

6. Roots that are edible

__________, __________

7. Animals teeth

__________, __________

8. Weaves of our country

__________, __________

9. Spices used as a medicine

__________, __________

10. Beaks of birds.

__________, __________

V) Differentiate between : 1. Tap Root and Fibrous Root

2. Herbs and Spices

3. Manure and Fertilizers

4. Agriculture and Horticulture

5. Kuchha House and Pucca House

VI ) Answer in one sentence : Q1. Why do we need a house ? Q2. How is salt obtained from sea water ? Q3. What is the main occupation of people in Indian villages ? Q4. Why do birds build nests ? Q5. How can we purify water at home used for drinking purpose ? Q6. What kind of beak does a tailor bird have ? Q7. Why was Vani’s house always filled with bright colours ? Q8. Name the spice that brings water in your nose and eyes. Q9. How can jeera be used in our food ? Q10. What is Garam Masala ? VII) Give Reasons for : 1. The number of tiger counts is going down. 2. We should not touch water with dirty hands. 3. Weeds are harmful. 4. We used mats in the kitchen. 5. Sprinkling the seeds at a regular distances. 6. Mother puts the threads into boiling water. 7. Cats have sharp teeth. 8. People were sick with diarrhea and vomiting in Cuffe Parade. 9. The loom has many needles. 10. Turmeric is used to heal wounds. VIII) Define the following terms: 1. Filtration

2. Decantation

3. Yarn

4. Handlooms

IX) Answer in short. (2 sentences) Q1. How can animals be recognized on the basis of their skin ? Q2. How did Pochampalli cloth get its name ? Q3. Why was it difficult for Abdul to pull out a small grass plant ?

5. Sedimentation

Q4. What are the uses of the hanging branches of a banyan tree ? Q5. Explain the journey of a river when it reaches the middle stage. Q6. What do you mean by slum ? What kind of conditions exist here ? Q7. Why are the beaks, feathers, feet etc. of different birds are different in colour, shape and size ? X) Answer in detail : Q1. Write about different water borne diseases, their causative agent, symptoms and preventions. Q2. Why are roots important for plants ? Q3. Write the functions of different types of teeth in different animals. Q4. Explain in detail about different steps involved in agriculture. XI) Draw the following : 1. Feet of any 4 birds and write the functions they perform. 2. a) Any 4 spices and write their names also. b) Mention the health benefits these spices provide us. 3. Process of Filteration, Sedimentation and Decantation.