The Fundamental Unit of Life — Science STD 9 — Question

Fill in the blanks in the following statements:
The number of protons in the nucleus of an atom is called its __________.

Fill in the following blanks with suitable words:
If a mixture contains iron filings as one of the constituents, if can be separated by using a ___________.

Electricity consumed by us in homes, offices, schools etc. is measured in _________.

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If the weight of a body is 6N on the moon, it will be about _______ on the earth.

Fill in the blanks:
When light is passed through water containing a few drops of milk, it shows a bluish tinge. This is due to the ___________ of light by milk and the phenomenon is called ___________ This indicates that milk is a ___________ solution.

Fill in the blanks in the following statements:
Neon and chlorine have atomic numbers 10 and 17 respectively. Their valencies will be _________ and _________ respectively.

Fill in the following blanks with suitable words:
The elements which are sonorous are called ____________.

Fill in the blanks in the following statements:
Almost all the mass of an atom is concentrated in a small region of space called the __________.

Fill in the following blanks with suitable word:
In order that the force of gravitation between two bodies may become noticeable and cause motion, one of the bodies must have an extremely large ______.

Fill in the blank.
The phenomenon of change of a liquid into the gaseous state at any temperature below its boiling point is called _______.