MEDIUM
Earn 100

One kilogram of a solid takes up 2 litres of space. What is its density?

50% studentsanswered this correctly

Important Questions on Experiments with Water

HARD
Environmental Studies>Physical Science>Experiments with Water>Floating and Sinking Substances
When an object is immersed in water, why does its weight reduce? How much weight is lost?
MEDIUM
Environmental Studies>Physical Science>Experiments with Water>Floating and Sinking Substances
Describe the different ways by which drinking water can be purified.
HARD
Environmental Studies>Physical Science>Experiments with Water>Floating and Sinking Substances
A substance has a density of 10 kilograms per litre. What is the density of 10 litres of this substance?
EASY
Environmental Studies>Physical Science>Experiments with Water>Floating and Sinking Substances
Which of the following substances sink in water?
EASY
Environmental Studies>Physical Science>Experiments with Water>Floating and Sinking Substances
Boiled water is unsafe for drinking.
EASY
Environmental Studies>Physical Science>Experiments with Water>Floating and Sinking Substances
The fast conversion of a liquid to a gas is known as _____.
HARD
Environmental Studies>Physical Science>Experiments with Water>Floating and Sinking Substances
Iron is denser than water so it sinks in water. But if a boat is made out of the same iron, it floats in water. Why?
MEDIUM
Environmental Studies>Physical Science>Experiments with Water>Floating and Sinking Substances
Explain why wood floats on water by comparing their pushing forces.
EASY
Environmental Studies>Physical Science>Experiments with Water>Floating and Sinking Substances
Differentiate between boiling and distillation.
EASY
Environmental Studies>Physical Science>Experiments with Water>Floating and Sinking Substances
The best and safest method of water purification is boiling.
EASY
Environmental Studies>Physical Science>Experiments with Water>Floating and Sinking Substances
When we push a floating object down in the water it comes up. This force is _____.
EASY
Environmental Studies>Physical Science>Experiments with Water>Floating and Sinking Substances
The settling down of insoluble matter in water is called _____.
EASY
Environmental Studies>Physical Science>Experiments with Water>Floating and Sinking Substances
Which of these is a process of purification of water which kills germs?
EASY
Environmental Studies>Physical Science>Experiments with Water>Floating and Sinking Substances

Insert the names in the list in the correct column in the table. 
Wooden spoon, Steel spoon, plastic spoon, iron hammer, rubber band 

Floats in water Sinks in water
   
   
   
   
   
MEDIUM
Environmental Studies>Physical Science>Experiments with Water>Floating and Sinking Substances
A substance has a density of 12.7 kilograms per litre. It will _____ 
EASY
Environmental Studies>Physical Science>Experiments with Water>Floating and Sinking Substances

Choose the correct word from the given bracket and fill in the blank.

[soluble, sediment, insoluble]

Sugar is _____ in water.

MEDIUM
Environmental Studies>Physical Science>Experiments with Water>Floating and Sinking Substances
What is buoyant force?
MEDIUM
Environmental Studies>Physical Science>Experiments with Water>Floating and Sinking Substances
Looking at the density of different things, how can we say which of them will float and which ones will sink in water?
EASY
Environmental Studies>Physical Science>Experiments with Water>Floating and Sinking Substances
Filtration is the safest method of water purification. 
EASY
Environmental Studies>Physical Science>Experiments with Water>Floating and Sinking Substances
Write the names of any four objects which float on water.