Insoluble materials are substances that do not dissolve in liquids like water. When added to water, these materials do not mix or form a solution; instead, they remain separate and can often be seen as solid particles. For example, sand, ...
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An example of a soluble material is salt. When you add salt to water, it dissolves completely, forming a clear solution. The particles of salt mix evenly with the water, and you can no longer see the individual grains of ...
The International System of Units (SI) is a standardized system for measuring things like length, weight, and time. It was created so that people around the world can use the same units and avoid confusion. In this system, the meter ...
People use standardized scales for measurement to ensure that measurements are accurate and consistent everywhere. Standard units, like meters, kilograms, and liters, help people understand measurements clearly without confusion. If everyone uses the same units, like meters for length or ...
In shops, cloth is usually measured with a measuring tape or a meter rod. The measuring tape is a flexible strip with markings in centimeters and meters, which allows shopkeepers to measure cloth accurately, even if it is folded or ...