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Metals are those which has the following properties =hardness,lustrous,good conductor of electricity and heat etc.Non metals are those which does not have these properties

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Who is called the father of micro biology

Posted by Anand Gachchinamath 8 years, 2 months ago

CBSE > Class 08 > Science

2 answers

Amar Kumar 8 years, 2 months ago

Anton van Leeuwenhoek is known as the Father of Microbiology.

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Crazy Christaaaasssia??? 8 years, 2 months ago

Antoine van Leeuwenhoek

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Why oil floats on water?

Posted by Ankaja Pal 8 years, 2 months ago

CBSE > Class 08 > Science

3 answers

Pankhudi Sarda 8 years, 2 months ago

Because of difference of density

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Shruti Dadhwal 8 years, 2 months ago

Oil floats on water due to density difference.oil is lighter than water.

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Amar Kumar 8 years, 2 months ago

Oil floats on water because water and oil have different densities and polarities. Oil and water do not mix or are immiscible because oil is less dense than water and will float on it. The second reason for oil floating on top of water has to due with the polarities of these substances. Water is polar and oil is non-polar, and there will be no attraction between their molecules. This accounts for the formation of separate layers of oil and water and their immiscibility.

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What is diffraction?

Posted by Nikhil Kumar 8 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Amar Kumar 8 years, 2 months ago

Diffraction is the process by which a beam of light or other system of waves is spread out as a result of passing through a narrow aperture or across an edge, typically accompanied by interference between the wave forms produced

Diffraction refers to various phenomena that occur when a wave encounters an obstacle or a slit. It is defined as the bending of light around the corners of an obstacle or aperture into the region of geometrical shadow of the obstacle.

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Metals are lustre they have shinning surface y don't have for non metals

Posted by Tejashwini Teju 8 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Yugant Sidar 8 years, 2 months ago

Because they have no lustre means shininess so it has more friction

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Why the petroleum is burning

Posted by Revathi Kamal 8 years, 2 months ago

CBSE > Class 08 > Science

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Why the petroleum is burning

Posted by Revathi Kamal 8 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Shruti Dadhwal 8 years, 2 months ago

It is a fuel and thus shows property of combustion reaction.

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Rapid combustion

Posted by Satyam Yadav 8 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Shruti Dadhwal 8 years, 2 months ago

Fast reaction of combustion

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What is conductivity

Posted by Shashank Chakrawarti 8 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Shruti Dadhwal 8 years, 2 months ago

Conductivity is property of carrying electrons from one end to other end .

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Functioning of prism

Posted by Nidhi Kushwaha 8 years, 2 months ago

CBSE > Class 08 > Science

2 answers

Shruti Dadhwal 8 years, 2 months ago

A prism shows the property pf dispersion. It splits white light into seven colors.

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Hrishika Deka 8 years, 2 months ago

A prism splits a ray of light into seven different colors

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What do you mean by pseudopadia

Posted by Raghbir Singh Karamjit 8 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Amar Kumar 8 years, 2 months ago

A pseudopod or pseudopodium is a temporary cytoplasm-filled projection of a eukaryotic cell membrane or a unicellular protist. Pseudopods may be used for motility, or for ingesting nutrients or other particulate matter.

Cells that make pseudopods are generally referred to as amoeboids.

The functions of pseudopodia include locomotion and the capturing of prey.

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