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प्रश्न
Complete the following chart by writing appropriate words in the boxes marked (a) to (e).
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उत्तर
- Solid
- Gaseous
- Well
- Lake
- Ice
APPEARS IN
संबंधित प्रश्न
Why is water very precious for all living being ?
Give balanced chemical equation for the reaction of water with Sodium .
Water has ...................... density and .................. volume at 4°C.
Use of excessive .................... by farmers causes water pollution.
Describe the water-cycle in nature.
Answer the following question:
Name two gases dissolved in natural water.
What do you mean by water pollution ?
Water exists in all three states. Discuss.
Explain why:
Rain water does not leave behind concentric rings when boiled.
What do you understand by Temporary hardness?
Give the importance of dissolved minerals & salts.
Give a balanced equation for the following conversion:
Calcium sulphate in permanent hard water to calcium carbonate using sodium carbonate.
Give a balanced equation for the following conversion:
Magnesium bicarbonate in temporary hard water to magnesium carbonate by boiling.
Which are the three states of water?
True or false? Correct the wrong statement.
We get rainwater throughout the year.
Pour water from the ice tray into a kettle. Ask an elder at your home to heat the kettle and observe the mouth of the kettle when the water starts boiling.
What do you see?
Water is the most ________ resource on the Earth.
Water is colourless, odourless and _______.
On which of the following day is World Water Day observed?
State whether the following statement is True or False. If false, write the correct statement.
Ice is solid whereas snow is the semi-solid form of water
