Question

B. Fill in the blanks.
1. When a substance is heated its density___
2. A hydrometer is used to measure ______
3. Any solid will not sink in water if its density is _____ one
4. 1kg ^-3 = _____ gm^-3
5. in a convection current the warm liquid _______ and the cold liquid _____.​

Answer 1

Answer:

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Fill in the blanks :

1. When a substance is heated its density decrease.

2. A hydrometer is used to measure Relative density

3. Any solid will not sink in water if its density is less than one.

4. 1kg ^-3 = 1000 gm^-3.

5. In a convection current the warm liquid rises upwards and the cold liquid sink downwards.

Explanation:

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