Evaporation is the process of conversion of water into its vapours by absorbing heat. Drying clothes under the sun is an example of this.

Match the statements in Column A with those in Column B. Column A Column B 1. A mixture of water vapor, dust particles and air on high altitude. (a) Drought 2. Journey of water from ocean to land and back to the ocean (b) Water harvesting 3. Collection of rooftop rainwater. (c) Cloud 4. A situation caused by no rain for a year. (d) Water cycle

A mixture of water vapor, dust particles and air on high altitude is known as cloud. The drops of water fall from the clouds towards the ground is called rain. The journey of water from ocean to land and back to the ocean is known as water cycle. It is powered by the heat of the sun and the force of gravity. The collection of rooftop rainwater for future use is known as water harvesting. It is a method of conservation of water. A situation caused by no rain for a year is known as drought. It results in loss of human life as well as of animal and plant life. The correct matches can be given as, Column A Column B 1.A mixture of water vapor, dust particles and air on high altitude. (c) Cloud 2.Journey of water from ocean to land and back to the ocean (d) Water cycle 3. Collection of rooftop rainwater. (b) Water harvesting 4.A situation caused by no rain for a year. (a) Drought

Match the following: Column A Column B 1. Underground water (a) Level below ground where there is only water 2. Purest form of water (b) Excessive rainfall 3. Water table (c) Can be obtained by digging well 4. Drought (d) Rainwater 5. Flood (e) No rainfall for several years

1-c Water is an important natural resource. Underground water is the source of water that can be obtained by digging well. 2-d The continuous movement of water in nature is called the water cycle or the hydrological cycle. Purest form of water is rainwater. 3-a Water table is the level below ground where there is only water. Water exists in all the three states of matter- solid, liquid and gas. 4-e Drought is caused when there is no rainfall for several years. It can lead to a shortage of drinking water and food to eat. 5-b Flood is caused due to excessive rainfall. Flood is an example of natural disaster and has a devastating effect on the lives of many people. Column A Column B 1. Underground water (c) Can be obtained by digging well 2. Purest form of water (d) Rainwater 3. Water table (a) Level below ground where there is only water 4. Drought (e) No rainfall for several years 5. Flood (b) Excessive rainfall

EASY

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Two cups of water were poured into each of the open containers named P and Q, as shown in the diagram. Predict what the water levels will be tomorrow.

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Important Questions on Water

EASY

Column A	Column B
1. A mixture of water vapor, dust particles and air on high altitude.	(a) Drought
2. Journey of water from ocean to land and back to the ocean	(b) Water harvesting
3. Collection of rooftop rainwater.	(c) Cloud
4. A situation caused by no rain for a year.	(d) Water cycle

Column A	Column B
1. Underground water	(a) Level below ground where there is only water
2. Purest form of water	(b) Excessive rainfall
3. Water table	(c) Can be obtained by digging well
4. Drought	(d) Rainwater
5. Flood	(e) No rainfall for several years

Evaporation	Condensation

Two cups of water were poured into each of the open containers named P and Q, as shown in the diagram. Predict what the water levels will be tomorrow.

Important Questions on Water

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