EASY
Earn 100

Name the type of change that takes place in the cooking of food.

Important Questions on Changes Around Us

MEDIUM
Science>Chemistry>Changes Around Us>Physical and Chemical Changes
A physical change is _____. (reversible / irreversible)
EASY
Science>Chemistry>Changes Around Us>Physical and Chemical Changes

A _____ change is also called a chemical reaction.

(Clues- reversible, chemical, physical, air, chemical)

MEDIUM
Science>Chemistry>Changes Around Us>Physical and Chemical Changes
_____ of iron is a chemical change. (Rusting / Melting)
EASY
Science>Chemistry>Changes Around Us>Physical and Chemical Changes
Changes in which new substances are formed are called _____ changes.
EASY
Science>Chemistry>Changes Around Us>Physical and Chemical Changes
Formation of manure from leaves is a _____ change. (chemical / physical)
EASY
Science>Chemistry>Changes Around Us>Physical and Chemical Changes
A _____ change forms new substances.
MEDIUM
Science>Chemistry>Changes Around Us>Physical and Chemical Changes
An example of physical change _____ of water. ( Electrolysis / boiling)
EASY
Science>Chemistry>Changes Around Us>Physical and Chemical Changes
On heating the volume/size of most substances _____(increases/decreases).
EASY
Science>Chemistry>Changes Around Us>Physical and Chemical Changes

A _____ change does not form any new substance.

(Clues-reversible, chemical, physical, air, chemical)

EASY
Science>Chemistry>Changes Around Us>Physical and Chemical Changes
In _____ change, the initial substance cannot be obtained back.
EASY
Science>Chemistry>Changes Around Us>Physical and Chemical Changes
Gases _____ the most on heating.
MEDIUM
Science>Chemistry>Changes Around Us>Physical and Chemical Changes
Only change of _____ takes place during the melting of ice.
EASY
Science>Chemistry>Changes Around Us>Physical and Chemical Changes
Cooling causes _____ in a material. (expansion/ contraction)
EASY
Science>Chemistry>Changes Around Us>Physical and Chemical Changes
Changes in which only _____ properties of a substance change are called physical changes.
EASY
Science>Chemistry>Changes Around Us>Physical and Chemical Changes
The burning of wood is _____ change. (chemical/physical)
MEDIUM
Science>Chemistry>Changes Around Us>Physical and Chemical Changes

Formation of manure from leaves is a _____ change. 

(Clues- reversible, chemical, physical, air, chemical)

EASY
Science>Chemistry>Changes Around Us>Physical and Chemical Changes
 A change in which a new substance is formed is a _____ change.
MEDIUM
Science>Chemistry>Changes Around Us>Physical and Chemical Changes

Choose the correct word from the list given below :
List: solution, expands, irreversible, reversible. You may use a word/words more than once.

Iron _____ on heating.

EASY
Science>Chemistry>Changes Around Us>Physical and Chemical Changes
Some changes are physical changes, some are _____ changes.
EASY
Science>Chemistry>Changes Around Us>Physical and Chemical Changes
Changes in which one or more new substances are formed are called _____ changes.