CBSE > Class 08 > Science | CBSE Board | Homework Help

Ask questions which are clear, concise and easy to understand.

Ask Question

What is called malleability?

Posted by Pragyanparamita Pradhan Pragyan 2 years, 3 months ago

5 answers

Lucky Singh Rajput ☺️☺️ 2 years, 3 months ago

Metals are malleable -the property which allow the metal to be harm into the seat is malleability. Example - almunium told, gold paper, silver paper. most of the natural matal are malleabl

1Thank You

Sanjeev Nayak 2 years, 3 months ago

The process by which a metal can be hammerd and turn into sheet

1Thank You

Harshit Changer... 2 years, 3 months ago

The process by which a metal can be hammerd and turn into sheet

1Thank You

Gopal Dhiman 2 years, 3 months ago

The process of beaten into thin sheet known as malleability

1Thank You

Pragyanparamita Pradhan Pragyan 2 years, 3 months ago

No answer.....

1Thank You

ANSWER

What is meant by staining

Posted by Bunny 🐇 2 years, 3 months ago

CBSE > Class 08 > Science

1 answers

Arnab Das 2 years, 3 months ago

Staining is an auxiliary technique used in microscopy to enhance contrast in the microscopic image.

1Thank You

ANSWER

Who is Robert hooke

Posted by Mehak Munjal 2 years, 3 months ago

CBSE > Class 08 > Science

4 answers

Azhar Amin Ganie 2 years, 2 months ago

He discovered a dead cell,from the bark of a tree in 1605

0Thank You

Kartik Ghuraiya 2 years, 2 months ago

The first scientist who found a dead cell in the work of oak tree

0Thank You

Aarsh Dev 2 years, 3 months ago

The scientist who discovered cell in 1665

1Thank You

Bunny 🐇 2 years, 3 months ago

An English scientist

4Thank You

ANSWER

Write one use each of any two metals and non-metals.

Posted by Bhargav Bora 2 years, 3 months ago

CBSE > Class 08 > Science

5 answers

Kartik Ghuraiya 2 years, 2 months ago

Metals are ductile that means they can be drawn into thin wires metals are malleable that means they can be hamered and made into thin sheets. Non metal are used in such as graphite which is used in pencil which is also good conductor of heat and electricity metals are lustrous like iodine .

2Thank You

Lucky Singh Rajput ☺️☺️ 2 years, 3 months ago

Fe , Cu are example of metal. C , O are example of non metal

4Thank You

Kavana Gowda 2 years, 3 months ago

Metals - aluminium and zinc used for making foil papers Non -metal - air and water Used for breathing; daily use

2Thank You

Dhruthi J 2 years, 3 months ago

Gold - Jewellary Iron - Machinary Oxygen - breating Chlorine - purifying water

5Thank You

Atmaja Gayval 2 years, 3 months ago

Metal Use - For making electric wires Example - copper Non metals Use - For breathing Example - oxygen

2Thank You

ANSWER

Explain why some fibre are called synthetic?

Posted by Saksham Negi 2 years, 3 months ago

CBSE > Class 08 > Science

2 answers

Babika Orang🌹 2 years, 3 months ago

Because the production of cotton is decreasing gradually so the product of clothes is by chemical fibre

0Thank You

Keshav Singh 2 years, 3 months ago

Natural fibre are man made fibres making with material synthetic fibre harn ful for the environment used for making wood pilu,animal skinn

1Thank You

ANSWER

Silver jwellery turns dark over a peroid of time

Posted by Kishlay Sahu 2 years, 3 months ago

CBSE > Class 08 > Science

4 answers

Yatharth Agrawal 2 years, 2 months ago

Silver tarnished black after sometimes on exposure to air

0Thank You

Kartik Ghuraiya 2 years, 2 months ago

It is because the silver jewellery get in contact to each other and hit together so they loose their Shine and get dark.

0Thank You

Lucky Singh Rajput ☺️☺️ 2 years, 3 months ago

Yes, because its contented with air

1Thank You

Kavana Gowda 2 years, 3 months ago

Because it comes in contact with air

2Thank You

ANSWER

Chemical properties of metal

Posted by M.Dharshini M.Dharshini 2 years, 3 months ago

CBSE > Class 08 > Science

5 answers

Yatharth Agrawal 2 years, 2 months ago

Metals can react with base,acids and water

0Thank You

Kartik Ghuraiya 2 years, 2 months ago

Metals are made up of items atoms are the smallest part of matter proton neutron and electron are the subtomic parts of metal chemical properties a metal is like sodium and potassium which is capital kerosene because if we will kept in air it will burn and from the respective oxides.

0Thank You

Trishita Lenka 2 years, 3 months ago

*** karaga mera saath

0Thank You

Lucky Singh Rajput ☺️☺️ 2 years, 3 months ago

Metal show different chemical properties.

1Thank You

Yogesh Apsunde 2 years, 3 months ago

Ch केमिकल प्रॉपर्टीज ऑफ मेटल

2Thank You

ANSWER

Metal Oxides are basic or acidic??

Posted by Ved Patel 2 years, 3 months ago

CBSE > Class 08 > Science

5 answers

Harshit Changer... 2 years, 3 months ago

Basic

1Thank You

Dhruthi J 2 years, 3 months ago

Basic

1Thank You

Atmaja Gayval 2 years, 3 months ago

Basic

1Thank You

Sidda8B 8B 2 years, 3 months ago

Basic

1Thank You

Rameswari Mohapatra 2 years, 3 months ago

Basic

1Thank You

ANSWER

Write note polination

Posted by Kavya Prasad 2 years, 3 months ago

CBSE > Class 08 > Science

2 answers

Sidda8B 8B 2 years, 3 months ago

1Thank You

Ved Patel 2 years, 3 months ago

Pollination is the act of transferring pollen grains from the male anther of a flower to the female stigma. The goal of every living organism, including plants, is to create offspring for the next generation. One of the ways that plants can produce offspring is by making seeds.

2Thank You

ANSWER

Chapter 5

Posted by Dhairya Veer 2 years, 3 months ago

CBSE > Class 08 > Science

0 answers

ANSWER

Why does tuberculosis considered as infectious diseases? Note:-This question is of science chapter-2(Microorganisms:Friend and foe).

Posted by Ananya Shrivastava 2 years, 3 months ago

CBSE > Class 08 > Science

1 answers

Dhairya Veer 2 years, 3 months ago

What is bitumen

3Thank You

ANSWER

Petroleum defination

Posted by Anushka Yadav 2 years, 3 months ago

CBSE > Class 08 > Science

1 answers

Aryan Sisale 2 years, 3 months ago

Crop defination

1Thank You

ANSWER

Audnxtbf dhidbdhd. Dgsk dtsn dtz. Srsb xfnd xykd xyn td ctdmbd

Posted by Aditya Singh 2 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Harshit Changer... 2 years, 3 months ago

Madar chod

0Thank You

ANSWER

Why is a virus different from other microorganism

Posted by Manvi Choudhary 2 years, 4 months ago

CBSE > Class 08 > Science

3 answers

Kartik Ghuraiya 2 years, 2 months ago

Different from other because it nonliving and living characteristics are different it is made up of nucleic acid and DNA or RNA they can only be seen by electron microscope branch of science that deals with the study of virus is known as virology.

0Thank You

Aradhya Vikas 2 years, 3 months ago

They are host organism which develop inside body of hosts 👍

0Thank You

Tanu Saluja 2 years, 3 months ago

Virus is non cellular in nature . It is different from others as they are inert outside the host organisms I.e. they cannot multiply outside the host organisms

0Thank You

ANSWER

Reflection of light

Posted by Pramod Panwar 2 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Monalisa . 2 years, 3 months ago

The bouncing back of light of an object is called it's reflection

0Thank You

ANSWER

The pressure of liquid column _____ with the depth of the column

Posted by Sudharshan Rao N.R 2 years, 4 months ago

CBSE > Class 08 > Science

3 answers

Kartik Ghuraiya 2 years, 2 months ago

Increase

0Thank You

Ananya Shrivastava 2 years, 3 months ago

The pressure of liquid Increase with depth

0Thank You

Partha_ Mondal 2 years, 4 months ago

What is universe

0Thank You

ANSWER

Name the metal and non-metal which occur in liquid state

Posted by Aditya Raj 2 years, 4 months ago

CBSE > Class 08 > Science

5 answers

Harshit Changer... 2 years, 3 months ago

Mercury h

0Thank You

Dhruthi J 2 years, 3 months ago

Metal - Mercury Non metal - bromine

0Thank You

P.Nikitha Nikitha 2 years, 3 months ago

Non metal

0Thank You

Sakshi Soni 2 years, 4 months ago

Mercury

0Thank You

Priyansh Arora 2 years, 4 months ago

Mercury (Hg)

5Thank You

ANSWER

Give reasons for the following A Electric wires are made of copper B. Gold and silver are used for making jewelry C graphite is used for making electrodes in electric cell

Posted by Prakhar Chandak 2 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Yatharth Agrawal 2 years, 2 months ago

1) copper is a good conductor of electricity 2)gold silver have lustre because they are metals and metals have lustre 3)

0Thank You

ANSWER

Activity 11.4

Posted by Sinduja Manimaran 2 years, 4 months ago

CBSE > Class 08 > Science

0 answers

ANSWER

What happens when charcoal burns in air?

Posted by Sayam Kumar Raj 2 years, 4 months ago

CBSE > Class 08 > Science

3 answers

Ansh Sharma 2 years, 2 months ago

It releases coal gas.

0Thank You

Harshit Changer... 2 years, 3 months ago

It releases :coal gas,coal tar and the purest form of coal is coke . Coke:it provides more electricity than coal.

0Thank You

Kavana Gowda 2 years, 3 months ago

It release gas

0Thank You

ANSWER

The undesirable plants that grow along with the crops are known as ______

Posted by Naitik Kopkar 2 years, 4 months ago

CBSE > Class 08 > Science

5 answers

Viveka. S Selvam.V 2 years, 4 months ago

The undesirable plants that are grow along with the crops are known as WEEDS

1Thank You

Account Deleted 2 years, 4 months ago

Weeds

1Thank You

Liba Kapadiya 2 years, 4 months ago

Weeds

1Thank You

Monalisa . 2 years, 4 months ago

Weeds

1Thank You

Adwaith Manoj 2 years, 4 months ago

Weeds

2Thank You

ANSWER

Visit a blacksmith and observe how metals are moulded.

Posted by Account Deleted 1 year, 5 months ago

CBSE > Class 08 > Science

2 answers

Chaudhary Hariom Chaudhary 1 year, 5 months ago

visit to goldsmith and observe which property help them

1Thank You

Kartik Ghuraiya 2 years, 2 months ago

First hit the metal and at a certain temperature then the blacksmith beat it with the hammer and mould easily with this desired shape.

1Thank You

ANSWER

Prepare index cards for any four metals. The card should have information like name of metal / non-metal; its physical properties, chemical properties and its uses.

Posted by Account Deleted 2 years, 4 months ago

CBSE > Class 08 > Science

2 answers

Account Deleted 2 years, 4 months ago

Please muje answer jaldi bato

2Thank You

Yashraj Singh Sisodiya Sisodiya 2 years, 4 months ago

संगीत संयुक्त व्यंजन किसे कहते हैं इसे स्पष्ट करते हुए व्यंजन के प्रकार बताएं

1Thank You

ANSWER

What is mammal

Posted by Sujay Godban 2 years, 4 months ago

CBSE > Class 08 > Science

2 answers

Viveka. S Selvam.V 2 years, 4 months ago

An animal of the type that gives birth to live babies , not eggs and feeds its young on milk from its own body. this is called mammal .

1Thank You

Account Deleted 2 years, 4 months ago

An animal of the type that gives birth to live babies , not eggs and feeds its young on milk from its own body.

1Thank You

ANSWER

Write two salient features of rayon

Posted by No Name 2 years, 4 months ago

CBSE > Class 08 > Science

2 answers

Account Deleted 2 years, 4 months ago

Characteristics of Rayon fabric - House of U. ... Benefits of rayon The fabric is soft and thereby comfortable to wear. The fabric has a beautiful, luxurious appearance. The fabric absorbs moisture and water well and stays cool and airy in warm weather. The fabric is wrinkle free. The fabric retains its shape and color well.

1Thank You

Vanshika Kapoor 2 years, 4 months ago

1) It does not shrink 2) It is cool to wear 3) It had silk like appearance

2Thank You

ANSWER

Write a scientific reason of food preservation?

Posted by Atmaja Gayval 2 years, 4 months ago

CBSE > Class 08 > Science