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When we heat them the force of attraction between the molecules decreases and the ice cubes become ______.
Concept: undefined >> undefined
______ is the only matter on the Earth that can be found naturally in all three states.
Concept: undefined >> undefined
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Match the following
| 1. | Solid to liquid | a. | Condensation |
| 2. | Liquid to gas | b. | Deposition |
| 3. | Gas to solid | c. | Melting |
| 4. | Gas to liquid | d. | Vaporization |
Concept: undefined >> undefined
Mention the factors affecting the flow of heat.
Concept: undefined >> undefined
______ is produced when an object is set to vibrate.
Concept: undefined >> undefined
The substance through which sound is transmitted is called ______.
Concept: undefined >> undefined
Billions of galaxies from the ______.
Concept: undefined >> undefined
On immersing an iron nail in CuSO4 solution for a few minutes, you will observe ______.
Concept: undefined >> undefined
The head of the matchstick contains ______ and ______.
Concept: undefined >> undefined
The sides of the matchbox contain ______.
Concept: undefined >> undefined
The term electrolysis was introduced by ______.
Concept: undefined >> undefined
The head of a matchstick contains red phosphorous.
Concept: undefined >> undefined
Ammonia is an important fertilizer in agriculture.
Concept: undefined >> undefined
Decaying of vegetables and fruits due to microbes.
Concept: undefined >> undefined
Catalyst inhibits the chemical reaction.
Concept: undefined >> undefined
Match the following
| i. | Quick lime | a. | Calcium hydroxide |
| ii. | Slaked lime | b. | Calcium oxide |
| iii. | Thermolysis | c. | Light |
| iv. | Photochemical | d. | Heat |
Concept: undefined >> undefined
Match the following
| i. | Ammonia | a. | Nickel |
| ii. | Dalda | b. | Fermentation |
| iii. | Alcoholic beverages | c. | Biocatalysts |
| iv. | Yeast | d. | Urea |
Concept: undefined >> undefined
Match the following
| i. | Apples | a. | Oxygen |
| ii. | Fatty acids | b. | Browning |
| iii. | Acid rain | c. | Rancidity |
| iv. | Solid camphor | d. | Air pollution |
Concept: undefined >> undefined
What are the conditions required for a chemical reaction to take place?
Concept: undefined >> undefined
What is brine commonly known as?
Concept: undefined >> undefined
