we can distinguish between Gold and Silver by ........

we can distinguish between sugar and table salt by ........

What is Density ?

By knowing that ( Density of water is 1 gm/cm3 ) and the Density of copper is 8.9 gm/cm3. so copper will ..........

An alloy that used in making cooking pots .....................

An alloy that used in making the heating coils of electric heaters and boilers................

it is the temperature at which matter begins to change from a liquid state to a gaseous state.............

All the following substances are heat conductors except ……..

Equal masses of different substances have different…………..

All the following solutions conduct electricity except…………….

In an experiment for determine the density of a liquid , the

following results are recorded

The mass of empty beaker = 75 gm. .

The mass of beaker containing liquid = 135 gm.

The volume of liquid = 100 cm3

The density of liquid is ………….

Separation of petroleum components depends on the difference in their …………..

Metals are characterized by their …………………

The density of 12 gm of pure iron ……….. is the density of 2 gm of iron.

One of the elements which don’t react with oxygen of air is ................

One of the elements which react with oxygen of air is……….

…………. does not melt by heating

A piece of iron has amass of 30 gm and a volume of 0.3cm3

Its density equal ………… gm /cm3

The density of substance is ……………… property