NCERT Solutions for Class 6 Science Chapter 4
Important NCERT Questions
Class 6th Chapter 4 Sorting Materials and Groups
NCERT Books for Session 2022-2023
CBSE Board and State Board
Questions No: 6
List all items known to you that float on water. Check and see if they will float on an oil or kerosene.
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Wooden block, Paper, Balloon, Hair, plastic bottle, wooden logs, Boat etc. will float on water. A few of these like hair, balloon can float on kerosene or oil. Generally, substances have less density than oil and water can float.
For example, few types of wood have densities higher than oil but less than water, so it floats on water but not on kerosene.
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Items that float on water:
– Wood, plastic, cork, Styrofoam, ice, soap.
They will likely float on oil or kerosene:
– Due to their lower density compared to these liquids.
– Objects less dense than water tend to float on oil or kerosene, as these liquids have lower densities than water, allowing buoyancy for items that float on water.