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

Droughts are caused due to lack of rains.
Drought condition results in drying up of wells, lakes, ponds and thereby creating water scarcity.
Droughts result in the evaporation of water from the soil leaving the soil dry and patchy.
Droughts result in mass death of plants and animals due to dehydration.
Droughts affect agriculture and lessen food production.
Droughts result in death of animals and birds which provide us animal products like milk, meat and eggs. This scarcity of food results in the famine.
Droughts result in forest fires caused by enormous amount of heat from scorching sun.

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ANSWER

We cannot move our elbows and knees backwards . Why ?

Posted by Anwesha Kumari 7 years, 2 months ago

CBSE > Class 06 > Science (OLD)

3 answers

Sandhya Sharma 7 years, 2 months ago

Because it has a joint named hinge joints which do not allow to move the elbow and knee backwards

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Gaurav Seth 7 years, 2 months ago

We cannot move our elbow backwards because the hinge joint which is present in our elbow, allows movement in only one angular plane.

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Prince Verma 7 years, 2 months ago

Because our hing joint allow movement in one way

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ANSWER

Why do air bubbles come out when soil is added to water

Posted by Sandeep Singh 7 years, 2 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Shambhavi. Sambrani. 7 years, 2 months ago

Because air contains space

1Thank You

ANSWER

Tell me the definition of hermaphrodite

Posted by Jahnvi Kanyal 7 years, 2 months ago

CBSE > Class 06 > Science (OLD)

0 answers

ANSWER

Give some uses of water

Posted by Nishtha Chawla 7 years, 2 months ago

CBSE > Class 06 > Science (OLD)

5 answers

Jasmeen Kaur 7 years, 2 months ago

Water is ised in radiators of vehicles

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Nishant Sharma 7 years, 2 months ago

For drinking ,bathing etc.

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Govind Singh 7 years, 2 months ago

Swimming also

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Yatharth Lodha 7 years, 2 months ago

It is used for many pourpos such as drinking,bathing,cooking e.t.c

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Prince Raj 7 years, 2 months ago

Water os used in bathing , cooking , drinking , etc.

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ANSWER

Tell me the percentage of air. Nitrogen Oxygen Carbon dioxide Argon Helium Water vapors Dust particles etc gasses

Posted by Jahnvi Kanyal 7 years, 2 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Nirupma Bhardwaj 7 years, 2 months ago

Nitrogen-78% Oxygen-21% Carbon dioxide-0.03% All other gases (including argon, helium,water vapour,dust particles.)-0.97%

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Name the materials that are conductors of electricity and also those which are insulators

Posted by Alan Johnson 7 years, 2 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Yogita Ingle 7 years, 2 months ago

Examples of Conductors

Silver is the best conductor of electricity. However, it is costly and so, we don’t use silver in industries and transmission of electricity.
Copper, Brass, Steel, Gold, and Aluminium are good conductors of electricity. We use them mostly in electric circuits and systems in form of wires.
Mercury is an excellent liquid conductor that finds use in many instruments.
Gases are not good conductors of electricity as the particles of matter are quite far away and thus, they are unable to conduct electrons.

Examples of Insulators

Glass is the best insulator as it has the highest resistivity.
Plastic is a good insulator and it finds its use in making a number of things.
Rubber is a common component in making tyres, fire-resistant clothes and slippers. This is because it is a very good insulator.

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List any 5 activity that are possible due to air.

Posted by Krishna Chandra Aman 7 years, 2 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Nirupma Bhardwaj 7 years, 2 months ago

1.Respiration 2.Flying of kite 3.Generation of electricity by windmills 4.Burning 5.Photosynthesis

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Why is a cyclone very destructive

Posted by Rushil Jain 7 years, 2 months ago

CBSE > Class 06 > Science (OLD)

2 answers

Life'S Tune 7 years, 1 month ago

A cyclone is very destructive because it is among the strongest motion in air.

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Sandhya Sharma 7 years, 2 months ago

Because it is the strongest wind

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ANSWER

Suppose you want to dry your school uniform quickly would spreading it near an anghiti or a heater help? If yes, how?

Posted by Pratyasha Silelan 7 years, 2 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Aryan Kataria 7 years, 2 months ago

Yes, spreading a school uniform near an anghiti or heater will help uniform to dry quickly. Anghiti and heater make a warm atmosphere. Evaporation is faster in warm surroundings. Thus, it will help to dry the school uniform quickly.

2Thank You

ANSWER

What are *** horomon ?

Posted by Bharti Surya 7 years, 2 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Yogita Ingle 7 years, 1 month ago

The hormones involved in the development and control of the reproductive organs and secondary sexual characteristics are called *** hormones.The two common *** organs are Testosterone and estrogen.

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What is bob of pendulum

Posted by Jasnum Singh Sachdeva 7 years, 2 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Yogita Ingle 7 years, 1 month ago

A small metallic bob suspended by a light, inextensible string from a rigid support, such that it is free to oscillate without friction about a point, is called a simple pendulum. The bob of a pendulum moves to and fro along the same path and passes through the mean position.

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Name some type of magnets?How many poles does a magnet have?

Posted by Nirupma Bhardwaj 7 years, 2 months ago

CBSE > Class 06 > Science (OLD)

2 answers

Jasmeen Kaur 7 years, 2 months ago

The magemt has two poles .... North amd south .... Types - horse shoe shaped magnet, ball shaped ended, ball shaped end magnet, bar magnet, cyclinderical magnet etc ..

2Thank You

Jasnum Singh Sachdeva 7 years, 2 months ago

Two poles

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ANSWER

How can we store magnets so that they do not loose their properties?

Posted by Nirupma Bhardwaj 7 years, 2 months ago

CBSE > Class 06 > Science (OLD)

2 answers

Sandhya Sharma 7 years, 2 months ago

If you will put a magnet near a magnet it will be more magnetic

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Jasmeen Kaur 7 years, 2 months ago

We can store magnets by magnetic keepers ..

1Thank You

ANSWER

How can we minimize the use of plastic and deal with garbage?

Posted by Nirupma Bhardwaj 7 years, 2 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Yogita Ingle 7 years, 2 months ago

Bring your own shopping bag.
Stop buying bottled water. ...
Bring your own thermos to the coffee shop.
Choose cardboard over plastic bottles and bags.
Say no to straws. .
Switch from disposable diapers to cloth.

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ANSWER

How will you make a vermicomposting pit

Posted by Aryan Singh 7 years, 2 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Nirupma Bhardwaj 7 years, 2 months ago

1.Dig a pit. 2.Spread a net or a chicken mesh at the bottom of the pit. 3.We can also spread one or two centimeters thick layer of sand. 4.Spread vegetable waste including peels of fruits over this thick layer of sand. 5.Sprinkle some water to make this layer wet. 6.Do not press the layer of waste. 7.Keep this layer loose so that it has sufficient air and moisture. 8.Put some redworms in this pit. 9.Cover them loosely with a gunny bag or an old sheet of cloth or a layer of grass. 10.Once in a few days,gently mix and move the top layer of pit. In this way we can do vermicomposting.

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ANSWER

Why earthworms called farmers friend

Posted by Mayank Patel 7 years, 2 months ago

CBSE > Class 06 > Science (OLD)

2 answers

Life'S Tune 7 years, 1 month ago

Earthworms are called farmer's friend because they make the soil fertile.

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Aryan Singh 7 years, 2 months ago

Earthworms help in vermicomposting and they help in increasing soil fertility

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ANSWER

what is condensation?

Posted by Geeta Rani 7 years, 2 months ago

CBSE > Class 06 > Science (OLD)

3 answers

Avinash Deshmukh 7 years, 2 months ago

The process of changing water vapour into it's liquid form is known as condensation

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Nirupma Bhardwaj 7 years, 2 months ago

1.The process of changing of gaseous form to liquid form is called condensation. 2.It requires evolution of heat. 3.Ex-water vapour➡️water

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Vishwa Joseph 7 years, 2 months ago

Water vapour turns into water by cooling down this method is called as condensation.

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ANSWER

What is Meant

Posted by Rubi Sukla 7 years, 2 months ago

CBSE > Class 06 > Science (OLD)

0 answers

ANSWER

What is good conductor

Posted by Suraj Singh 7 years, 2 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Deepak Mishra 7 years, 2 months ago

Object is good conductor

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ANSWER

What is rectiliener motion

Posted by Jasnum Singh Sachdeva 7 years, 2 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Avinash Deshmukh 7 years, 2 months ago

The motion of an object along a straight line is known as rectilinear motion

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Tomato, lemon and brinjal are fruits.Comment

Posted by Mihir Chandratre 7 years, 2 months ago

CBSE > Class 06 > Science (OLD)

4 answers

Life'S Tune 7 years, 1 month ago

Tomato,Lemon and Brinjal are fruits but we eat them as vegetables.

0Thank You

Tanya Gupta 7 years, 2 months ago

Idiot

0Thank You

Tanya Gupta 7 years, 2 months ago

Don't you have common sense ?

0Thank You

Tanya Gupta 7 years, 2 months ago

What comment ?

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ANSWER

Write the two properties of magnet.

Posted by Sunny Singha 7 years, 2 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Gaurav Seth 7 years, 2 months ago

Two most important properties of magnets

1) A freely suspended magnet always points in the north-south direction.
2) Like magnetic poles repel each other; unlike magnetic poles attract each other.

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ANSWER

Germination of plants diagram with parts

Posted by Harikesh P 7 years, 2 months ago

CBSE > Class 06 > Science (OLD)