Mass is how you describe how heavy an object is. You can compare the weights of objects using mass and you can use a weighing scale or balance to find and compare masses of objects.
Heavier objects have greater mass, so a pot is heavier than a fork. Remember that you can only compare masses if they have the same unit; a book is not heavier than a chair! Use this equation to convert between units:
Make sure the units are the same.
Identify what the question is asking you:
Convert the answer back into appropriate units (if required).
How much heavier is a paperweight compared to a bottle of water?
What is the combined weight of the paperweight and the bottle of water?
Question: What is the biggest unit of mass?
Answer: The largest unit of mass is the kilogram (kg).
Question: Is mass the same as weight?
Answer: The two terms can be used interchangeably, however mass is not the same as weight.
Question: What units are used to measure mass?
Answer: The units gram (g) and kilogram (kg) are used to measure mass.