CBSE > Class 06 > Science (OLD) | CBSE Board | Homework Help

Pinhole camera works on the principle that “Light travels in straight lines"Light from the objects enters the camera through the pinhole. It goes to the screen where it forms an inverted and small image. The image has the same colour as the object. ... step2 The pinhole is like the lens of the camera.

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What is major difference between sieving and filtration?

Posted by Shreyas Bhosale 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Priya Ghugtyal 6 years, 4 months ago

The major difference between saving and filtration are: Sieving allows the fine flour particles to pass through the holes of the sieve while the bigger impurities remain on the sieve .filteration for that it through stainer did all the tea leaves remain in the strainer this process is called filteration

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what is displacement

Posted by Avni Arora 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

2 answers

Yogita Ingle 6 years, 4 months ago

It is defined as the change in position of an object. It is a vector quantity and has a direction and magnitude. It is represented as an arrow that points from the starting position to the final position. For Example- If an object moves from A position to B, then the object’s position changes. This change in position of an object is known as Displacement.

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Ashish Sah 6 years, 4 months ago

The shortest distance between initial and final position is called displacement

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What is thrashing

Posted by Kavita Bajwa 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

3 answers

Priya Ghugtyal 6 years, 4 months ago

You must have seen you must see in bundles of wheat or stocks lying in field after harvesting a crop stalks are there in the sun before The Grain is separated from them is stock has many green seeds that at 28 imagine the number of crane seeds in hundreds of wonders of stock lying infield how does a farmer separate grain from those bundle of stocks how many + mango showers from the truth but it rained seeds are smaller than mangoes are covered sofa plucking them from their stocks would be Impossible how does the one separate grain seeds from the rest of the process that is used to separate train from stock is threshing

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Jeya Srinithi 6 years, 4 months ago

Threshing: Threshing is used for separeting seeds from the paddy, wheat etc.

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Yogita Ingle 6 years, 4 months ago

Threshing: Threshing is used for separating seeds from the harvested stalks.

Manual Threshing: When the quantity is small, threshing is done manually. Small bundles of the harvested stalks are thrashed on a hard surface. This helps in separating the grains.
Threshing by Animals: For larger quantities, threshing is done in the traditional way; by using animals. For this, stalks are spread around a pole. Several bullocks are tied to the pole and are made to walk over the harvested stalks. Trampling by hooves of the animals helps in separating grains.
Threshing Machine: Now-a-days, threshing machines are used for the purpose. It can be powered by either a diesel engine or an electric motor. It helps in saving time and labour.

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Lemonade is prepared by mixing lemon juice and sugar in water you wish to add ice to cool it should you add ice to the lemonade before or after dissolving sugar in which case would it be possible to dissolve more sugar

Posted by Swapnangli Sarangi 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Tejaswini Ojha 6 years, 4 months ago

Add ice after dissolving sugar. It would be possible to dissolve more sugar before adding ice.

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Is air a matter

Posted by Varuni Jindal 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

3 answers

Priya Ghugtyal 6 years, 4 months ago

Yes air is a matter

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Siddhi 09 6 years, 4 months ago

Yes, air has matter because we will do a experiment Take a deflated football,weigh it ,you will it is empty.Now fill the football with air,you will see it has expand.So,inflated footballl will be heavier.So air has mass and occupie space.

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Soni Bitra 6 years, 4 months ago

Yes,air is a matter

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You accidentally dropped your favourite toy and broke it. This is a change did not want. Can this change be reversed

Posted by Babu Babu 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

4 answers

Tejaswini Ojha 6 years, 4 months ago

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Farhan Kalim 6 years, 4 months ago

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Swapnangli Sarangi 6 years, 4 months ago

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Babu Babu 6 years, 4 months ago

Fhstegajx

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Sulphur is used to florocent lights?

Posted by Parth Rai 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

0 answers

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AB+ab+(cd)

Posted by Uuuuuujjjjjuuu Uuuuuuuuuuuu 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

3 answers

Priya Ghugtyal 6 years, 4 months ago

What the hell

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Swapnangli Sarangi 6 years, 4 months ago

What the hell

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Hajer Banu Najmudeen 6 years, 4 months ago

Wrong

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what is leaf venation?

Posted by Priyanshu Singh Saroj 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

2 answers

Priya Ghugtyal 6 years, 4 months ago

the design made by veins in leaf is called leaf venation. If this design in net like on both sides of midrib the venation is reticulate venation. in the leaves of grass you might have seen that veins are parallel to one another .these are parallel venation

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Yogita Ingle 6 years, 4 months ago

Leaf venation

The design made by veins in a leaf is called the leaf venation.
If the design is net like on both sides of midrib is called reticulate venation. For example: coriander, rose, oak etc.

If the design made by veins is parallel to one another in a leaf is called parallel venation. For example: grass, wheat, maize etc

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What do you mean by classificasion

Posted by Swati Saidanavar 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

2 answers

Ips Murali Murugan 6 years, 4 months ago

4and5lesson in pt

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Soni Bitra 6 years, 4 months ago

Separation of any thing under taking certain properties or functions of it is known as classification

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How many total bones in ribs

Posted by Vanshika Verma 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

3 answers

Farhan Kalim 6 years, 4 months ago

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Vikrant Singh 6 years, 4 months ago

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Ananth Dev 6 years, 4 months ago

There are 24 bones in ribs

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The flower has stem

Posted by Saranaya Verma 6 years, 5 months ago

CBSE > Class 06 > Science (OLD)

2 answers

Priya Ghugtyal 6 years, 4 months ago

Yes

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Vanshika Verma 6 years, 4 months ago

yes

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What is ball and socket joint ?

Posted by Ankush Khanna 6 years, 5 months ago

CBSE > Class 06 > Science (OLD)

2 answers

Vanshika Verma 6 years, 4 months ago

In the ball and socket joint one bone has a shape of ball and the other has a shape of like abowl they were attached to each other

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Yogita Ingle 6 years, 5 months ago

Ball and socket joints:

This is the type of joint in which ball shape surface of one bone fitted into the hollow space of another bone also called socket.
In this type of joint movement can be done in all the directions. For example: shoulder joint, hip joint

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What is periodic and non periodic change

Posted by Suhani Naik 6 years, 5 months ago

CBSE > Class 06 > Science (OLD)

2 answers

Ravindra Patil 6 years, 5 months ago

What is food

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Ravindra Patil 6 years, 5 months ago

What is solible

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What is a skull what are the Function of skull

Posted by Suhani Naik 6 years, 5 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Adarsh Raj 6 years, 5 months ago

Skull bone which found in head and function of skull to protect the brain

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What is fibrous Root

Posted by Ayushi Kashyap 6 years, 5 months ago

CBSE > Class 06 > Science (OLD)

3 answers

Priya Ghugtyal 6 years, 4 months ago

Do not have a main root all roots team similar and these are called fibrous root

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Vikrant Singh 6 years, 4 months ago

main root is called fibrous root

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Soni Bitra 6 years, 4 months ago

Fibrous root does not have main root All the roots are of same size in length They are not deep rooted in the ground Trees with fibrous roots is easy to uproot

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what is herbs,shrubs,trees?

Posted by Pro Hunter J 6 years, 5 months ago

CBSE > Class 06 > Science (OLD)

6 answers

Priya Ghugtyal 6 years, 4 months ago

Trees are the big plants that have thick stems

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Priya Ghugtyal 6 years, 4 months ago

Some plants sale of branches near the case of stamp the stamp is hard but not very thick that plants are called shrubs

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Priya Ghugtyal 6 years, 4 months ago

Plant with green and tender stems are called Herbs they are usually short and may not have many branches

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Vikrant Singh 6 years, 4 months ago

plant with green and tender stem are called herbs

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Udit Digari 6 years, 5 months ago

Herbs are short plant which have short brantches

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Ravindra Patil 6 years, 5 months ago

What are soluble and insoluble

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Why is there gap left between the rails in railway track?

Posted by Preeti Gadgul 6 years, 5 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Yogita Ingle 6 years, 5 months ago

The gap is left between the rails to provide a space for the iron metal to expand and contract during the summer and winter season due to the change in the temperatures. If the gap is not left in between then the rails will bend more and cause derailing of the trains.

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Meaning of bowel movement

Posted by Kanwalpreet Kaur 6 years, 5 months ago

CBSE > Class 06 > Science (OLD)

3 answers

Gaurika Balha 6 years, 5 months ago

You must have got the meaning of**** it is not a bad word on related to digestive system!!

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Gaurika Balha 6 years, 5 months ago

Basically fieces

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Gaurika Balha 6 years, 5 months ago

Bowel movement means the process of throwing out all waste from the **** through digestive system.

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What is a habitat answer

Posted by Pranjal Awasare 6 years, 5 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Yogita Ingle 6 years, 5 months ago

The surrounding in which a living being lives is called its habitat. For example; the pond is the habitat for a frog. Our home is our habitat. A tree is the habitat for a squirrel.

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Classification

Posted by Subramani T 6 years, 5 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Soni Bitra 6 years, 4 months ago

Classification is nothing but separation of any thing on the basis of its properties or functions or characteristics is known as classification

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Hing joint means?

Posted by G Puneeth 6 years, 5 months ago

CBSE > Class 06 > Science (OLD)

2 answers

Sia ? 6 years, 5 months ago

A hinge joint is a common class of synovial joint that includes the ankle, elbow, and knee joints. Hinge joints are formed between two or more bones where the bones can only move along one axis to flex or extend.

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Shruti Sinha ????? 6 years, 5 months ago

The joint which can move only in one direction, is called hinge joint.

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An element X forms a compound XH what is the variable valency of X

Posted by Neelima Kosuri 6 years, 5 months ago

CBSE > Class 06 > Science (OLD)