Advertisements
Advertisements
प्रश्न
Fill in the blank
Revolution of the earth around the sun is a ________ change.
Advertisements
उत्तर
Revolution of the earth around the sun is a natural periodic change.
APPEARS IN
संबंधित प्रश्न
Write true or false for the statement.
Deforestation is a man-made change
State whether the following is physical or chemical changes.
glowing of a bulb -
Write true or false
Rusting of iron is a chemical change.
The rusting of an iron object is called :
Is a change of state of matter – a physical or a chemical change. Give reasons.
Give the reason why the following is considered as chemical changes.
Sulphur when burnt in air evolves a gaseous acidic product.
Name the following.
The product obtained during a physical change when water converts from a liquid into a solid.
Name the following.
A form of energy required for a chemical change.
Name the following.
The gaseous product of the chemical change which takes place during respiration in living organisms.
If you leave a piece of iron in the open for a few days, it acquires a film of brownish substance, called rust.
Do you think rust is different from iron?
