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
When a candle burns, both physical and chemical changes take place. Identify these changes. Give another example of a familiar process in which both the chemical and physical changes take place.
Fill in the blank.
A new substance is formed in a ............... change.
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
Classify the following changes as physical or chemical:- melting of a solid (wax)
State whether the following is physical or chemical changes.
growing of a piglet into a pig —
Tick the most appropriate answer.
Physical changes are
Write true or false
Deforestation is a man-made change.
Fill in the blank.
The process of a liquid changing into a solid is called ________
Is a change of state of matter – a physical or a chemical change. Give reasons.
State which of the following 1 to 5 pertain to – A: Physical Change B: Chemical change :
- Sublimation.
- Fermentation.
- Liquefaction or condensation.
- Magnetization.
- Respiration.
