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प्रश्न
Asmita went to buy an earthen pot. There she saw many things kept for sale.
What is the difference between a substance and an object?
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उत्तर
Objects are made from substances. Objects have definite shape and size.
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संबंधित प्रश्न
When extremely small particles X derived from the anther of a flower were suspended in a liquid Y and observed through a microscope, it was found that the particles X were moving throughout the liquid Y in a very zig-zag way. It was also observed that warmer the liquid Y, faster the particles X moved on its surface.
- What could particles X be ?
- What do you think liquid Y is ?
- What is the zig-zag movement of X known as ?
- What is causing the zig-zag movement of particles X ?
- Name the scientist who discovered this phenomenon.
- What does this experiment tell us about the nature of liquid Y?
Define solvent.
Tincture of iodine has antiseptic properties. This solution is made by dissolving :
Name the source from which nitrogen and oxygen are obtained on a large scale.
Name the process by which all the dye can be recovered from black ink.
Describe a method to separate a mixture of common salt and sand.
Wipe the board with a duster and then tap the duster against the table. What do you see?
Complete the given analogy.
Murukku from hot oil: ______:: Coffee powder residue from decoction: ______
The property which allows the metals to be hammered into their sheets is ______.
The pressure of gases does not depend on the temperature of the gas and the volume it occupies.
