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

Advantages of SI system of units are:
(i) SI is coherent system of units, i.e., a system based on certain set of fundamental units.
(ii) SI is rational system of units. i.e., it assigns only one unit to a particular physical quantity.
(iii) SI is metric system, i.e., multiples and sub-multiples of the system can be expressed as a power of 10.
(iv) SI is internationally accepted system of units.

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How earthworm move

Posted by Mohd Irfan 6 years ago

CBSE > Class 06 > Science (OLD)

1 answers

Meghna Thapar 5 years, 10 months ago

An earthworm does not have bones or legs. It has muscles which help to lengthen and shorten the body. An earthworm’s body consists of liquid-filled segments joined together. The earthworm’s body has two types of muscles circular and longitudinal muscles. During movement, the earthworm first extends the front part of the body, keeping the rear portion fixed to the ground. Then it fixes the front end and releases the rear end. Such repeated muscle expansions and contractions, the earthworm can move through soil. The tiny bristles on the underside of earthworm’s body help in gripping the ground when a part of its body moves.

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What is obtained by evaporation of sea water

Posted by Shriya Dora 6 years ago

CBSE > Class 06 > Science (OLD)

2 answers

Durlov Dutta 6 years ago

Salt

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Yogita Ingle 6 years ago

The sea water is first collected and it is kept for evaporation.When the water is fully evaporated the salt remains.By this way salt is obtained from sea water.

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How is motion different from movement

Posted by Munish Kumar 6 years, 1 month ago

CBSE > Class 06 > Science (OLD)

1 answers

Meghna Thapar 5 years, 10 months ago

Moving away from the original position of an organism is locomotion whereas movement can happen with or without moving away from an organism’s original position.

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Define a periscope

Posted by Jeet Sanodiya 6 years, 1 month ago

CBSE > Class 06 > Science (OLD)

1 answers

Meghna Thapar 5 years, 10 months ago

Periscopes are the instruments used to observe the things from a hidden position.The device has a long tube with parallel mirrors situated at both ends at a 45-degree angle. However, some periscopes opt for prisms rather than mirrors, such as those in submarines. The military typically uses periscopes in armored vehicles and gun turrets.

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Define stomata please

Posted by Subhalakhmi Bordoloi 6 years, 1 month ago

CBSE > Class 06 > Science (OLD)

1 answers

Kanika Goyal 6 years, 1 month ago

Stomata are the tiny pores on the surface of the leaf . The process TRANSPIRATION is done with the help of stomata

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Why do birds fly ?

Posted by Bhavani Raja 6 years, 1 month ago

CBSE > Class 06 > Science (OLD)

4 answers

Ravindra Bharathi Global School 6 years ago

?? birds are light weight and they have hollow bones ???

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Kanika Goyal 6 years, 1 month ago

Their bodies are light in weight and they have hollow bones which help a bird to fly

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Shriyansh Sarkar 6 years, 1 month ago

Bad this is a common thing that everyone knows

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Akshata Arun 6 years, 1 month ago

Birds fly as they have hollow bones and their breast muscle is modified into wings

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How does earthworm move

Posted by Mohd Irfan 6 years, 1 month ago

CBSE > Class 06 > Science (OLD)

1 answers

Meghna Thapar 5 years, 10 months ago

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Getting to know plants

Posted by Pradip Funde 6 years, 1 month ago

CBSE > Class 06 > Science (OLD)

1 answers

Infinity Sachet ?‍♂️??‍♂️???‍?Kulkarni 6 years, 1 month ago

No answer

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Habitat

Posted by Lakshya Verma 6 years, 1 month ago

CBSE > Class 06 > Science (OLD)

3 answers

Kanika Goyal 6 years, 1 month ago

The place where organisms live is called habitat

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Infinity Sachet ?‍♂️??‍♂️???‍?Kulkarni 6 years, 1 month ago

A organism which can live on a particular place is called a habitat

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Akshat Mall 6 years, 1 month ago

A living organisam that where it live is called habitat or in short home

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Why do we need to separate different component of a mixture? Give two reason

Posted by Khushbu Kumari 6 years, 1 month ago

CBSE > Class 06 > Science (OLD)

3 answers

Anmol Trivedi 6 years ago

We need to separate different component of a mixture 1)to get useful component.and 2)removing harmful components

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Kanika Goyal 6 years, 1 month ago

We need to seperate different component of a mixture by the following ways :- 1. To seperate 2 different but useful component. 2. To remove non- useful components. 3. To remove harmful component FOR EG :- 1. Churning of milk to obtain butter. 2. Milk is seperated from stalks

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Yogita Ingle 6 years, 1 month ago

Among different components of mixture there are many substances which are harmful or not useful for us. To remove these harmful or unuseful components we need to separate them. For example: (a) Tea leaves are separated from the liquid with a strainer while preparing tea.

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Ddsfu

Posted by Aryan Shaw 6 years, 1 month ago

CBSE > Class 06 > Science (OLD)

0 answers

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How is earth from and when you type answer also type answer

Posted by Soham Vikas Jadhav 6 years, 1 month ago

CBSE > Class 06 > Science (OLD)

2 answers

Zalak Gandhi 6 years, 1 month ago

Answer: When the solar system settled into its current layout about 4.5 billion years ago, Earth formed when gravity pulled swirling gas and dust in to become the third planet from the Sun. Like its fellow terrestrial planets, Earth has a central core, a rocky mantle and a solid crust.

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Soham Vikas Jadhav 6 years, 1 month ago

Last word is prove

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Who is deer carnivorous omnivorous or herbivorous

Posted by Navnath Bhandwalkar 6 years, 1 month ago

CBSE > Class 06 > Science (OLD)

2 answers

Jeet Sanodiya 6 years, 1 month ago

Herbivores

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Debaditya Maitra 6 years, 1 month ago

Herbivores

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Write down the three major differences between a shadow and an image

Posted by Trinandan Singh 6 years, 1 month ago

CBSE > Class 06 > Science (OLD)

1 answers

Tina Barman 6 years, 1 month ago

1.shadow is a iwn image

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Why mountainers carry oxygen cylinder with them

Posted by Darshil Shah 6 years, 1 month ago

CBSE > Class 06 > Science (OLD)

2 answers

Kanika Goyal 6 years, 1 month ago

Mountaineers carry oxygen cylinders with them to be able to breathe at high altitudes

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Aditi Patel 6 years, 1 month ago

Because when we go up the air pressure reduces

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Why do we need to separate different component of a mixture ? Give two reason

Posted by Khushbu Kumari 6 years, 1 month ago

CBSE > Class 06 > Science (OLD)

1 answers

Akshat Mall 6 years, 1 month ago

In order to understand we Need to separate the 0component of mixture. Ex - In wheat or rice there are small stone which is harmfull for our health

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Explain why handspan cannot be used as standard unit of length

Posted by Prajkta Patil 6 years, 1 month ago

CBSE > Class 06 > Science (OLD)

2 answers

Khushbu Kumari 6 years, 1 month ago

Why do we need to separate different component of a mixture ? give two reason

1Thank You

Zalak Gandhi 6 years, 1 month ago

Handspan is not used as a measurement of length. Because the handspan is not a standard value and it is not a standard quantity. The handspan is different for different persons. It changes from person to person. There is no standard value for hand span. To measure a unit we must need a standard value and a standard quantity. For ex: Take a meter. The value of meter is standard. It does not change. But handspan changes. So, handspan is not used for measuring length. Hope my answer helps you.

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How to Snail move

Posted by Harsh Solanki 6 years, 1 month ago

CBSE > Class 06 > Science (OLD)

1 answers

Yogita Ingle 6 years, 1 month ago

Snails commonly found on land or in soil.
Snail possesses wavy movement with muscular contraction.
It also secrets sticky substance called mucus which helps to reduce grip between the snail and the ground so that they can move easily.

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Show an picture of water cycle

Posted by Jayanthlal Kamlekar 6 years, 1 month ago

CBSE > Class 06 > Science (OLD)

1 answers

Meghna Thapar 5 years, 10 months ago

Water cycle is the continuous circulation of water from the earth’s surface to atmosphere, and from the atmosphere back to earth.

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Is egg really a non veg food?why?When the milk that we get from cow is veg then what about egg??

Posted by Ayush Yadav 6 years, 1 month ago

CBSE > Class 06 > Science (OLD)

1 answers

Shubhankar Sharma 6 years, 1 month ago

Yes, beacuse bla bla bla bla

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What is a way to move people and things from one place to another

Posted by Shivank Shukla 6 years, 1 month ago

CBSE > Class 06 > Science (OLD)

2 answers

Vardan Shrivastava 6 years, 1 month ago

Answer this

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Yogita Ingle 6 years, 1 month ago

Migration is a way to move from one place to another in order to live and work. Movement of people from their home to another city, state or country for a job, shelter or some other reasons is called migration.

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Key words cloud

Posted by Ashok Kumar 6 years, 1 month ago

CBSE > Class 06 > Science (OLD)

1 answers

Meghna Thapar 5 years, 10 months ago

The water vapours condense to form small droplets of water which combine to form water drops and form clouds. Clouds are formed by a process of condensation.

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Explain why a camel is a living thing while a car is an non-living thing.

Posted by Angshuman Borah 6 years, 1 month ago

CBSE > Class 06 > Science (OLD)

1 answers

Rahul Sharma 6 years, 1 month ago

Things which can grow, move, breathe and reproduce are called living things. Things which cannot grow, move, breathe and reproduce are called nonliving

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What are inernodes

Posted by Prithika Sangpriya 6 years, 1 month ago

CBSE > Class 06 > Science (OLD)