Substances that sink or float - class-VI
substances that sink or float
Questions
Name three materials that are lighter than water:
- Oil, wood and wax
- Iron silver and gold
- Sodium, potassium and aluminium
- Plastic, glass and wool
Identify the material from the following which will not sink in water:
- Knife
- Coin
- Steel rod
- Tennis ball
The ______ sinks in water while the _______ floats.
- ship, boat
- paper, paper boat
- soap cake, soap case
- nail, hammer
Find the odd one out on the basis of its density to that of water.
- Human body
- Plastic Bottle
- Glass
- Ice
Which of the following sinks in water?
- A boat
- A piece of paper
- A nail
- A stick
Ayesha saw that the first puri ____________ to the bottom of the pan; as it puffed up, it started ____________ on the oil.
- float, to sank
- sank, floating
- reached, floating
- none of these
When cyclohexane is poured in water, it floats because :
- cyclohexane is in boat form
- cyclohexane is less denser than water
- cyclohexane is in chair form
- cyclohexane is in crown form
The density of brass on CGS system is 8.4 $ \displaystyle g/cm^{3} $. Its density in SI system is:
- 8.4 $ \displaystyle kg/m^{3} $
- 84 $ \displaystyle kg/m^{3} $
- 840 $ \displaystyle kg/m^{3} $
- 8400 $ \displaystyle kg/m^{3} $
The following is the characteristic property of a substance:
- density
- volume
- weight
- none of these
Take 2 glasses $A $ and $B$ and put tap water in $A$ and salt water in $B$. Now add 1 egg in each. In which of the glass, an egg will sink?
- $A$
- $B$
- Both
- None of them
How many of the following are soluble in water?
salt, sugar, sand, dust
- 1
- 2
- 3
- 4