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

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

Ask Question

What is the exact definition of ball bearings ?

Posted by Yash Aryan 8 years, 4 months ago

CBSE > Class 08 > Science

0 answers

ANSWER

how the monkey became man

Posted by Rinku Bhoria 8 years, 4 months ago

CBSE > Class 08 > Science

0 answers

ANSWER

What is Braille system

Posted by Vansh Dhamija 8 years, 4 months ago

CBSE > Class 08 > Science

0 answers

ANSWER

TThan alls of a dam are thicker near the base Than at the top.why?

Posted by Muhammed Ashik 8 years, 4 months ago

CBSE > Class 08 > Science

0 answers

ANSWER

Describe the various means of conservation of wildlife and forests

Posted by Isha Roy 8 years, 4 months ago

CBSE > Class 08 > Science

0 answers

ANSWER

Thermoplastic and thermosetting

Posted by Anup Mandal 8 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Anjali Pandit 8 years, 4 months ago

Thermoplastic is is a plastic which can be molded more than once but thermosetting plastic are the plastic which can be only molded only once

0Thank You

ANSWER

Why are coal and petroleum called non renewable resources.

Posted by Tushar Sharma 8 years, 4 months ago

CBSE > Class 08 > Science

0 answers

ANSWER

What is manuer

Posted by Sonu Kumar 8 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Tushar Sharma 8 years, 4 months ago

Manuer is an organic substance obtained from the decomposition of plant and animal wastes.

1Thank You

ANSWER

What is vector

Posted by Ayush Dhatwalia 8 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Payal Singh 8 years, 4 months ago

A vector is a quantity or phenomenon that has two independent properties: magnitude and direction. The term also denotes the mathematical or geometrical representation of such a quantity. Examples of vectors in nature are velocity, momentum, force, electromagnetic fields, and weight

1Thank You

ANSWER

What are fossils

Posted by Rajat Kumar 8 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Payal Singh 8 years, 4 months ago

Fossils are the remains of plants and animals that have been preserved in sedimentary rocks. Fossils are generally rare. For every animal that dies, its chances of becoming fossilised are estimated to be less than one in a million.

1Thank You

ANSWER

Last year questions papers

Posted by Sneha Saravana 8 years, 4 months ago

CBSE > Class 08 > Science

0 answers

ANSWER

what are *** hormones

Posted by Dev Dua 8 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Sahdev Sharma 8 years, 4 months ago

*** hormone is a steroid hormone (such as estrogen or testosterone) that is produced especially by the ovaries, testes, or adrenal cortex and affects the growth or function of the reproductive organs or the development of secondary *** characteristics.

1Thank You

ANSWER

Why all people do *** in night

Posted by Rounak Kumar 8 years, 4 months ago

CBSE > Class 08 > Science

0 answers

ANSWER

What is destructive Distillation

Posted by Anand And Aditya Panda And Thakur 8 years, 4 months ago

CBSE > Class 08 > Science

2 answers

Shubham Kumar 8 years, 4 months ago

Heating an substance in absence of oxygen

1Thank You

Diana Soni 8 years, 4 months ago

Decomposition of heating of solid

1Thank You

ANSWER

What is vaccine?

Posted by Raj Tiwari 8 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Tushar Sharma 8 years, 4 months ago

It is a preparation containing dead or weakend microbes e.g. viruses or becteria used to confer immunity to a disease by introducing (injecting) it into the person'/ animal's body.

0Thank You

ANSWER

Nitro gen cycle

Posted by Bharti Rajput 8 years, 4 months ago

CBSE > Class 08 > Science

0 answers

ANSWER

What us plasma membrane

Posted by Ravi Ranjan Kumar 8 years, 4 months ago

CBSE > Class 08 > Science

2 answers

Tushar Sharma 8 years, 4 months ago

The cytoplasm and nucleus are enclosed within the cell membrane , also called the plasma membrane.

0Thank You

Amar Kumar 8 years, 4 months ago

The plasma membrane is the boundary between the cell and its environment. It regulates what enters and exits the cell. Cells must maintain an appropriate amount of molecules to function inside them. They must also have a way to keep things out or to allow things to enter. This is the job of the plasma membrane.

0Thank You

ANSWER

What is the meaning of sexual reprodution

Posted by Nikhitha Tarra 8 years, 4 months ago

CBSE > Class 08 > Science

0 answers

ANSWER

Vhd an latest x FM y sass CNN l 2nd s ask kg am lbs all keep Kay h

Posted by Vatambetti Niharika 8 years, 4 months ago

CBSE > Class 08 > Science

0 answers

ANSWER

Fictional distillation

Posted by Mansi Soni 8 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Amar Kumar 8 years, 4 months ago

Fractional distillation is the separation of a mixture into its component parts, or fractions. Chemical compounds are separated by heating them to a temperature at which one or more fractions of the compound will vaporize. It uses distillation to fractionate.

The process of separating the constituents of a liquid mixture by heating it and condensing separately the components according to their different boiling points. Fractional distillation is used to refine petroleum.

1Thank You

ANSWER

What is h2o

Posted by Abhinav Chauhan 8 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Amar Kumar 8 years, 4 months ago

Water (H₂O) is a polar inorganic compound that is at room temperature a tasteless and odourless liquid, nearly colorless with a hint of blue.

0Thank You

ANSWER

What are metalloids?

Posted by Sivaprasad Nair 8 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Amar Kumar 8 years, 4 months ago

The elements which show some properties of metal and some properties of non-metal are called semi-metals or metalloids. The six commonly recognised metalloids are boron, silicon, germanium, arsenic, antimony, and tellurium.

4Thank You

ANSWER

What do you mean by reproduction

Posted by Khushi Soni 8 years, 4 months ago

CBSE > Class 08 > Science

0 answers

ANSWER

Define vacume

Posted by Sukhdeep Kaur 8 years, 4 months ago

CBSE > Class 08 > Science

0 answers

ANSWER

Define pressure

Posted by Mash Mahesh Dharshini 8 years, 4 months ago

CBSE > Class 08 > Science

2 answers

Tushar Sharma 8 years, 4 months ago

Force per unit area called pressure.

0Thank You

Sukhdeep Kaur 8 years, 4 months ago

The force acting on a unit area of a surface is called pressure.

1Thank You

ANSWER

What is curmb

Posted by Dhruv Narayan Tiwari 8 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Tushar Sharma 8 years, 4 months ago

The ploughed field may have big pieces of soil called crumbs.

0Thank You

ANSWER

What will happen if a person does not take iodised salt

Posted by Jatin Sharma 8 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Dhruv Narayan Tiwari 8 years, 4 months ago

If any person did not take salt then the person was healthy if his started take Dalton the middle of this age it is passion for this person

2Thank You

ANSWER

Why viruses act in a host organisms while other microorganisms act easily outside of organisms

Posted by Vishirsha Patel 8 years, 4 months ago

CBSE > Class 08 > Science

0 answers

ANSWER

Ignition temperature

Posted by Surbhi Choukiker 8 years, 4 months ago

CBSE > Class 08 > Science

3 answers

Simran Sidhu 8 years, 4 months ago

The lowest temperature at which substance can caches fire easily.

0Thank You

Vivek Pal 8 years, 4 months ago

The lowest temperature at which a fuel starts burning is called it's ignition temperature

0Thank You

Amar Kumar 8 years, 4 months ago

Ignition Temperature. It is defined as the minimum kindling temperature required for any substance to catch fire. This temperature varies from substance to substance.

1Thank You

ANSWER

What is the name of the force applied to an object by man?

Posted by Aranya Mondal 8 years, 4 months ago

CBSE > Class 08 > Science