District Administration

District Administration 

 संस्कृत एकादश: पाठ:- तृतीया विभक्ति:

https://drive.google.com/file/d/1nSkE7qsmawg4Q6XQH3efsD2ehfrcJNCP/view?usp=sharing

 संस्कृत पाठ 10- कर्म कारक: ( द्वितीया विभक्ति:)

https://drive.google.com/file/d/186qtQjhx1suv8MIk77rGYpovcXhgr881/view?usp=sharing

STD 6 SUB GUJARATI ( CH 15 )

 

STD: 6 SUB: GUJARATI [CH :9 ]

 

std 6 GUJARATI [ ch 4 ]

 

std 6 GUJARATI (ch 5 )

 

Ch 9A. Living organisms and their surroundings -WORKBOOK ANSWER

 

Ch 9. Living organisms and their surroundings - A

I.
1. Choose the correct option.
(a) Which of the following is an abiotic component of the environment?
i. sunlight ii. plant

iii.	bacteria	iv. animals
Ans: sunlight
(b) Which of the following is not a characteristic of living organism?
i. iii.	respond to stimuli movement	ii. respiration iv. unable to adapt

Ans: unable to adapt
2. State true or false:
(a) Plants like bryophyllum reproduce through leaves.
Ans: True
(b) Amoeba is an unicellular organism.
Ans: True
(c) The movement of a sunflower in the direction of the sun is an example of
tropism.
Ans: True
3. Give two examples of:
(a) Decomposers
Ans: bacteria and fungi
(b) Nocturnal animals
Ans: Owls, bats, cockroaches
(c) Plants that reproduce through stems.
Ans: ginger, potato
(d) Plants that grow from seeds.
Ans: gram, wheat, tomato, mango, peepal
Objective type questions
4. In the following questions, two statements are given- one labelled
Assertion (A) and the other labelled Reason (R). Read the statements
carefully and choose the correct alternative (A), (B), (C) and (D) as given
below.
(A) Both A and R are true and R is correct explanation of the assertion.
(B) Both A and R are true but R is not the correct explanation of the
assertion.
(C) A is true but R is false.
(D) A is false but R is true.
(a) Assertion: Urea is removed from the body through urine with the help of the
kidneys.
Reason: Urea is a waste product of animal.
Ans: (A) Both A and R are true and R is correct explanation of the assertion.
(b) Assertion: Greens plants are autotrophs.
Reason: Green plants prepare their food using the energy from the Sun.
ans: (A) Both A and R are true and R is correct explanation of the assertion.
5. Define the following:
(a) Life span
Ans: The period for which an organism remains alive, that is time from the
birth to the death is called the life span.
(b) Habitat
Ans: The place where an organism lives is called its habitat.
6. Answer in brief:
(a) What is stimulus? Give two examples of plant movements in response to
stimuli.
Ans:  Any change in the organism’s environment that causes it to react is
called a stimulus.
 Plants also show movement in response to stimuli such as light,
temperature and touch.
 The roots of plants always grow downwards towards soil and water
while the stem always grows upwards towards light.
 The stomata of the leaf open during the daytime and close at night.
(accept any two answers)
Theory type questions
(b) What is photosynthesis?
Ans: Plants use the energy from sunlight and make their own food using
water and carbon dioxide. This process of preparing food by green plants
is called photosynthesis.
7. Give reasons for the following:
(a) Plants have unlimited growth as compared to animals.
Ans: Plants grow throughout their life but animals stop growing after a
particular age. Thus, plants have unlimited growth whereas animals have
limited growth.
(b) Pigeons and crows are also known as diurnal animal.
Ans: Animals like crows, pigeons are active during the day time and are called
diurnal animals.
8.
(a) Identify the structure.
Ans: Stomata
(b) On which part of the plant this structure is present?
Ans: On the surface of the leaves.
(c) State the function of the structure.
Ans: Plants breathe through tiny pores called stomata present on the surface
of the leaves.
Picture based questions
9.
Ponds are small bodies of still, or not moving, fresh water that are surrounded
by land. Usually, we hear sounds of birds calling, crickets chirping, and frogs
croaking around the pond. We also see Lotus plants floating on the water, and
birds can be seen diving down to catch their next meal. We also see fish
swimming in the pond. Pond ecosystems are full of activity and life.
(a) List biotic factors listed in the paragraph above.
Ans: birds, frogs, crickets , lotus plant , fish
(b) List abiotic factors listed in the paragraph above.
Ans: Land, water.
https://study.com/academy/lesson/pond-ecosystem-lesson-for-kids.html
10.
Unscramble the words using clues given below:
(a) odcndreoab : carbon dioxide
Clue: Gas given out when fossil fuels are burnt in vehicles and factories.
(b) lsoi : soil
Clue: Forms the lithosphere of the earth
(c) enpslfia : lifespan
Clue: The period for which an organism remains alive.
(d) lucelamlritul : multicellular
Clue: Organism made up of many cells
11.
1. Why do leaves of desert plants become spines?
Ans: Due to high temperature water is lost from the leaves. To check water
loss, leaves of desert plants become spiny.

HOTS

. Why do leaves of desert plants become spines?
Ans: Due to high temperature water is lost from the leaves. To check water
loss, leaves of desert plants become spiny
Fun based questions
Paragraph based question

 संस्कृत पाठ 9 - प्रथमा विभक्ति 

https://drive.google.com/file/d/1A3jqJ0iXfCSlZnUA6dFUpJsSDN14J8ae/view?usp=sharing

Textual Exercise of The Rise and Decline of Mauryan Empire

Textual Exercise 

CH-3 3D Printing Using Tinkercad

1. Textbook Exercise Answer Sheet

2. Worksheet

3. Worksheet Answer Sheet

4. Video 1 - Ruler Tool

5. Video 2 - Snap Grid

6. Video 3 - Convert 2D Image To 3D Object

7. Video 4 - Printing 3D Objects 

India - Location and Physical Features

 Textbook exercise  

Chapter Name – India -Location and Physical Feature

 

Q1) Choose the appropriate option.

a) Based on area, which is the largest state of India?

i)            Rajasthan

ii)         Maharashtra

iii)         Tripura

iv)        Haryana

 

b) What is the northern part of the eastern coastal plain called?

i)        Konkan Coast

ii)       Malabar Coast

iii)      Coromandel Coast

iv)           Northern Circar

 

c) The southernmost range of the Himalayas is the ____________.

i)         Himadri Range

ii)       Himachal Range

iii)      Shiwalik Range

iv)           Purvanchal range

 

d) Kavaratti is the administrative headquarters of which of these union

territories?

i)               Lakshadweep islands

ii)             Andaman and Nicobar islands

iii)           Chandigarh

iv)           Daman and Diu

 

Q2) Fill in the blanks.

a) Goa is the smallest state of India.

b) Indira Point is the southernmost tip of India.

c) Sri Lanka is separated from India by the Palk Strait.

 

Q3) Answer the following questions in 10 to 20 words.

a. What are the characteristics of the Great Indian Desert?

Ans. This region is characterized by little rainfall, less vegetation and moving sand dunes.

• The Luni is the only major river flowing through this

region.

• Lake Sambhar is an important saline water lake of this

region.

• This is the region of inland drainage, where most rivers disappear into the sand or drain into the lake.

 

b. Name any two hill stations located in Himachal range.

Ans. In Himachal Pradesh hill stations such as Shimla, Mussoorie, Darjeeling, etc.

 

c. Name the three rivers that drain the Northern Plains of India.

Ans. The Indus, Brahmaputra, Ganga.

 

d. Name the neighboring countries of India.

Ans. There are seven countries that share land boundaries with India.

These countries are China, Nepal, Pakistan, Afghanistan, Myanmar, Bhutan and Bangladesh. Pakistan and Afghanistan in the North- West, China, Nepal and Bhutan in the North, Bangladesh and Myanmar in the East.

 

e. Mention two points of difference between the Western Ghats and the Eastern Ghats.

Ans.

The Western Ghats	The Eastern Ghats
The Western Ghats lie on the western margin of the Deccan Plateau.	The Eastern Ghats lie on the eastern margin of the Deccan Plateau.
The Western Ghats are higher in elevation. Their average elevation is from 900 to 1600 metres.	The Eastern Ghats are lower in elevation. Their average elevation is 600 metres.
They have a continuous chain of mountains and can be crossed through passes only.	The mountain chains are not continuous and are denuded by the rivers which flow into the Bay of Bengal.
No major river has cut across them.	They have been cut across by major rivers like the Godavari, Mahanadi, Krishna and Kaveri.

 

Q4) Answer the following questions in 50 to 70 words.

a) Give an account of the location and size of India.

Ans. India accounts for about 2.4 percent of the total geographical area of the world with an area of about 32,87,263 sq.km. The north-south extent of India is 3,214 Km and the east-west is 2,933 Km. It is located in the Northern hemisphere and Eastern hemisphere. India is a country of vast geographical extent. It is located in the Northern hemisphere and Eastern hemisphere. The Tropic of Cancer (23°30´N) passes almost halfway through the country. The mainland of India extends roughly between 8°4´ N to 37°6´ N latitudes and between 68°7´ E to 97°25´E longitudes. Indira Point is the southernmost tip of India.

 

b) Explain the geographic divisions of northern mountains.

·       Himadri/Greater Himalayas

The northernmost range is known as Himadri or Inner Himalayas. It is the most continuous range consisting of the loftiest peaks with an average height of 6,000 metres. It consists of all the important Himalayan peaks such as Mt. Everest (Nepal), Kanchenjunga, Nanga Parbat, Nanda Devi.

·       Himachal/Lesser Himalayas

The range lying to the south of the Himadri is known as Himachal or Lesser Himalayas. The altitude varies between 3,700 and 4,500 metres and the average width is of 50 km. This range consists of the famous valley of Kashmir and the Kullu Valley in Himachal Pradesh. Hill stations such as Shimla, Mussoorie, Darjeeling, etc. are also located here.

Shiwalik/Outer Himalayas

The southernmost range of the Himalayas is called the Shiwaliks. It extends over a width of 10-50 km and have an altitude varying between 900 and 1100 metres. It comprises of long and fl at valleys called ‘duns’ in the west and duars in the east. For example, Dehradun.

 

c) State three points of difference between the Western and Eastern Coastal Plain.

Ans. The differences and comparison between Eastern and Western

Coastal Plains are as below:

The Eastern Coastal plains	The Western Coastal Plains
Lies between the Western Ghats and the Arabian Sea.	Lies between the Eastern Ghats and the Bay of Bengal.
It extends from the Gujarat coast to Kerala coast.	The plain extends coast to coast from West Bengal to Tamil Nadu.
It consists of three sections – ● Northern part is known as Konkan Coast ● The central part is known as Kannad Plain ● Southern part is known as Malabar coast	It consists of two sections – ● Northern part is known as Northern Circar ● Southern part is known as the Coromandel Coast
● It is comparatively narrow.	● It is quite broad

 

 

d) Write a short note on Deccan Plateau of India.

Ans. The Deccan Plateau of India lies to the south of the Narmada River and is triangular in shape.

It is surrounded by the Satpura Range, the Maikal Range and the Mahadeo Hills in the north, the Western Ghats in the west and the Eastern Ghats in the east. One of the peculiar features of this plateau is the Deccan trap, an area of the large igneous province. It consists of multiple layers of solidified lava. This plateau is of volcanic origin and the igneous rocks in this region are responsible for the formation of black soil.

SCIENCE CHAPTER 8 BODY MOVEMETS WORKBOOK ANSWER

 

Ch8. Body movements

1.	Name the following:
(a)	The structure by which a cockroach can sense any danger.
ans:	Cerci
(b)	The hair-like bristles which are present on the underside of an earthworm’s body.
ans:	Setae
(c)	Places where two or more bones meet.
ans:	Joint
(d)	The bones in the wrist.
ans:	Carpals
2.	State true or false. Correct the false statements.
(a)	Animals with backbone are called invertebrates.
ans:	 False  The animals without backbone are called as vertebrates. / The animals with backbone are called as vertebrates.
(b)	The human skeleton is made up of 102 bones.
ans:	 False  The human skeleton is made up of 206 bones.
(c)	The wings of birds are covered with feathers for flying.
ans:	True
(d)	The backbone of a fish is flexible.
ans:	True
3.	Fill in the blanks:
(a)	Cartilage is a tough and elastic substance and is flexible as opposed to bones.
(b)	A cockroach as three pair of legs.
(c)	Birds have light and hollow bones.
(d)	The body of a snake is covered with scales which allow it to slither on the ground.

Objective type questions

	In following questions, the Assertion and Reason have been put forward. Read the statements carefully and choose the correct alternative from the following:
(A) Both Assertion and Reason are true and the Reason is a correct explanation of the Assertion. (B) Both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. (C) Assertion is true but the Reason is false. (D) Both Assertion and Reason are false.
(a)	Assertion: Snails have four tentacles on their head. Reason: The lower tentacles bear the eyes of the snail.
ans:	(D) Both Assertion and Reason are false.
(b)	Assertion: The backbone is made up of 33 small bones known as the vertebrae. Reason: Backbone is also known as the vertebral column.
ans:	(A) Both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.
1.	Define the following terms:
(a)	Locomotion
ans:	The act of moving from one place to another is known as locomotion.
(b)	Floating ribs
ans:	The two bottom pairs of ribs that are not joined to the breastbone or sternum are called floating ribs.
2.	Answer in brief:
(a)	What is downstroke? Which two organs are protected by rib cage?
ans:	The heart and the lungs are protected by the rib cage.
(b)	Explain the terms: (i) upstroke (ii) downstroke

Theory type questions

ans:	 The bird then lifts the wings upwards in preparation for another downstroke and continues. This is termed ‘upstroke’.  While flying, a bird first moves its wings down and forward. This lifts the body of the bird in the air. This movement is termed ‘downstroke’.
(c)	What is bone marrow? State its function.
ans:	 The soft and spongy mass inside the bones are called bone marrow.  The bone marrow produces blood cells.
(d)	State one function of each of the following:
(i) Fins in fish
ans:	Fish have pairs of fins which helps in:  maintaining balance  changing directions
(answers may vary)
(ii) Foot in snail
ans:	 The foot produces wave-like movements which propel the body of the snail forward. / Foot helps in movement of snail.  Produces mucous.
(answers may vary)
3.	Give reasons for the following:
(a)	A snail does not get cut if it moves over a sharp razor blade.
ans:	Snail does not get cut if it moves over a sharp razor blade due to its muscular foot and, because of the protective and slimy mucous which reduces friction.
(b)	Snakes can move very fast.
ans:	While moving, the body of a snake curves into many loops and each loop presses against the ground to give a forward push to the body. Making several such loops helps the snake to move very fast.

Observe the given diagram and answer the questions that follow.
(a)	Label the parts 1 to 4.
ans:	 1- Femur  2- Tibia  3- Fibula  4- Tarsals
(b)	List two activities that can be performed by using the lower limbs.
ans:	One can walk, run and jump using the lower limbs.
Read the following paragraph and answer the following questions:
Sam was hospitalized after falling down while playing in the school. He was immediately rushed to the doctor. He was not able to walk properly due to severe pain in his right leg. Doctor suggested to get an X-ray test done.
(a)	Why doctor advised to take an X-ray image?
ans:	X-rays are radiations which can pass through skin and soft tissues but cannot pass through bones. Hence bones can be clearly seen in X-ray image. If any bone may have broken, the doctor would immediately start with the treatment.
(b)	Who discovered X-rays?
ans:	X-rays were discovered by German physicist Wilhelm Conrad Roentgen.

Real life learning
Diagram based questions

Given below is the diagram of a part of human skeleton. Complete the diagram by joining the dots in correct sequence.
Clue: This part of the skeleton system protects the brain.
You discover an unusual new organism in the deep sea and you are studying its skeletal system in your school laboratory aquarium. The organism appears to have a liquid-filled body. The liquid filled in its body is helping it to maintain its shape. (i) What kind of skeletal system does this organism most likely have- exoskeleton or endoskeleton? (ii) Name one animal that have the same type of skeleton system as that of this animal.
ans:	 endoskeleton  earthworm

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

SCIENCE CHAPTER 8 BODY MOVEMENTS TEXTUAL ANSWERS

 

CHAPTER 8

BODY MOVEMENTS

Textual Question Answer:

 

1 Choose the correct option.

a. Which of the following is a slightly movable joint?

i. Joints between wrist bones                                     ii. Knee joint

iii. Joints between vertebrae                         iv. Shoulder joint

b. Which of the following is a specialised organ found in a cockroach?

i. Setae                                                            ii. Cerci

iii. Scales                                                         iv. Swim bladder

c. Which of the following animals is a vertebrate?

i. Snake                                                                       ii. Snail

iii. Earthworm                                                             iv. Cockroach

d. Which of the following joints is a ball and socket joint?

i. Elbow joint                                                   ii. Neck joint

iii. Knee joint                                                   iv. Shoulder joint

e. Birds can fly because they have .

i. a streamlined body                                      ii. hollow bones

iii. wings and feathers                                    iv. all of these

 

2. Fill in the blanks.

a. The act of moving from one place to another is known as locomotion .

b. The bristles present on the underside of an earthworm are called as Setae.

c. The eyes of a snail are located on the bigger (upper) tentacles.

d. The joints between the parts of a finger are  hinge joints.

 

3. State whether the following statements are True (T) or False (F).

a. Movement is brought about by the contraction and relaxation of muscles.  (T)

b. A snail moves with the help of setae.                                                                        (T)   

c. A pivot joint allows us to move our arms.                                                                  (F)   

d. The rib cage protects the lungs and the heart.                                                          (T)

e. Outer skeleton is present in cockroach.                                                                       (T)

f. Our skull has movable joints.                                                                                        (F)

g. Cartilages are harder than bones.                                                                               (F)  

4. Answer the following questions in brief.

a. Name the parts of the human skeleton.

ANS: The main parts of the human skeleton are the skull, the spine or the backbone, the rib cage, the limbs, the shoulder bones and the pelvic bones.

b. Explain the importance of a swim bladder in a fish.

ANS: A swim bladder in a fish can be filled with air or emptied to help them move up and down in water.

c. Name the different features of the body of a bird that help in flying.

ANS:  The following features help the birds to fly;

Ø  The bodies of birds are streamlined, which reduces the resistance of air while flying.

Ø  Birds have light and hollow bones.

Ø  The forelimbs in birds are modified into wings.

Ø  The wings are covered with feathers which help in flying.

Ø  Birds have strong shoulder bones and chest muscles to support the movement of wings during flight.

d. Explain the role of muscles in movement of bones.

ANS: Muscles always work in pairs. The shortening of muscle fibres is known as contraction and the lengthening of muscle fibres is known as relaxation. One end of a muscle is attached to a movable bone and another is attached to a fixed bone. When a muscle contracts, the movable bone is pulled with the muscle. Hence, the alternate contraction and relaxation of the muscles brings about movement of bones.

e. Differentiate between a invertebrate and an vertebrate.

Invertebrates	Vertebrates
Invertebrates do not possess a backbone not an internal skeleton	Vertebrates possess a backbone and an internal skeleton.
Invertebrates have an exoskeleton	Vertebrates do not possess an exoskeleton.
examples of invertebrate animals are earthworms, snails and insects such as a cockroach.	examples of vertebrate animals are fish, snakes, birds and men.

 

5 Define the following.

a. Backbone: The long bony structure that runs down the centre of back, from the base of the skull to the lower back is known as the backbone.

b. Movement and locomotion: Animals that perform movements without shifting from one place is called movement & the act of moving from one place to another is known as locomotion

c. Gliding Joint: A type of joint where flat bones glide over each other to permit movements is known as a gliding joint.

d. Fixed Joint: The joints that are immovable are called fixed joints.

6. Answer the following questions in detail.

a. What are the different types of joints present in the human body?

ANS: The places where two or more bones come together are called joints.

On the basis of the freedom of movement allowed by joints, we can classify joints as:

• Immovable or fixed joints such as the joints between skull bones

• Slightly movable joints such as the joints between the vertebrae

• Freely movable joints such as

1.     Ball and socket joints

2.     Pivotal joints

3.     Hinge joints

4.     Fixed joints

5.     Gliding joints

b. How does a snail move?

ANS: The foot produces wave-like movements which propels the body of the snail forward. The foot secretes a slimy substance mucous that avoids friction and even helps to move over a sharp objects without getting cut. With its muscular foot and mucus, the snail can easily glide over smooth or rough surfaces & can move vertically and even upside-down. 

c. What is X-ray imaging? What are the uses of an X-ray image?

ANS: X-ray imaging are radiations which can pass through skin and soft tissues but cannot

pass through bones, hence bones can be clearly seen.

Uses of an X-ray image: An X-ray images can be used to study bones and find out if a bone is fractured or not so the doctor would immediately start with the treatment.

7. HOTS (Higher Order Thinking Skills)

a. Abhay is running really fast. What are the different types of joints that

are helping Abhay run?

ANS: The different types of joints that are helping Abhay run are Ball-andsocket joint and Gliding joint

b. How does spending time in sunlight improve bone growth and development?

ANS: Sunlight helps the body to make its own vitamin D, which is important for strong bones 

 

c. Imagine we had a single long bone as our backbone, instead of small bones. Would

movement have been possible?

ANS: No, if we did not have small bones we would not be able to bend forward, backward and also allows us to twist.

 

8. Complete the following table:

CRITERIA
Name of  th      e joint Na	Ball and Socket Joint	Gliding joint	Hinge joint	Pivot joint
Direction of movement	variety of movements like swing, flap and rotate	to move a little in many directions	only in one direction (back and forth movement)	move from side to side & also forward and backward
Loca         joint	shoulder joint, hip joint	Joints between the wrist & ankle bones	The elbow and the knee joints, joints between the parts of a finger	Joints in our neck (between the skull and the spine)