A kilogram is a kilogram, no matter what.
It's the same weight
A kilogram of sand takes up less space than a kilogram of air, because sand is more dense than air. A kilogram of sand takes up more space than a kilogram of gold, because sand is less dense than gold.
A kilogram
A kilogram is heavier.
A kilogram is a kilogram, no matter what.
It's the same weight
Neither of the above BOTH ARE EQUAL
No. A kilogram is a kilogram is a kilogram. On the other hand, a kilogram of sand will most likely be a different size than a kilogram of gravel. We are told by the question though that they both weigh one kilogram, so they are the same weight.
A kilogram of sand takes up less space than a kilogram of air, because sand is more dense than air. A kilogram of sand takes up more space than a kilogram of gold, because sand is less dense than gold.
One kilogram of sand is denser than one kilogram of cotton. This is because sand particles are more tightly packed together, leading to higher density compared to the looser, fluffier structure of cotton.
A kilogram
They both weigh the same: 1 kilogram. Weight is a measure of the force of gravity acting on an object, so the weight of both the 1 kilogram feather and the 1 kilogram stone would be the same.
A kilogram is heavier.
A kilogram is about 2.2 times heavier than a pound.
Cotton is a very lightweight plant, and fabric. Metal is much heavier than cotton.
A kilogram is heavier. Kilo means 1000, so a kilogram is a 1000 grams. The prefix kilo~ denotes 1,000.