Advertisements
Advertisements
प्रश्न
When ice melts to form water, change occurs in its
पर्याय
position
colour
physical state
composition
Advertisements
उत्तर
Physical state
APPEARS IN
संबंधित प्रश्न
Classify the following as chemical or physical change:
Cutting of trees
State three differences between evaporation and boiling
What do you observe when :
lighted match stick is brought near the mouth of the test tube containing hydrogen gas.
Fill in the blank
Heat is ________ by a gas during the process of condensation.
Solve this crossword by using the clues that follow-
Across
1. Energy in the form of sunlight is absorbed by the green plants in this process.
4. The reddish-brown substance formed over iron in the presence of oxygen and moisture.
5. This change is permanent and irreversible.
6. The process in which a solid directly changes into gaseous state.
Down
1 . It is the change that takes place in case of swinging pendulum of a clock. –
2. Occurrence of this is a non-periodic change as well as a natural change.
3. It is a physical change.
Which of the following are physical changes ?
- melting of iron metal
- rusting of iron metal
- bending of an iron rod
- drawing a wire of iron metal
Classify the Following as a Physical Or a Chemical change.
Glowing of an Electric Bulb
Given reason:
Freezing of water to ice and evaporation of water are physical changes.
What will you take into account while identifying the following?
A physical change in a substance.
______ is the substance that is dissolved in a solvent.
