rock is much more dense than foam. It's like a full bottle of coke weiging more than an empty bottle of coke.
of course not
yes
1 kilogram = 1000 grams and 1 gram = 1000 milligrams. You now have all the information required to work out, for yourself, the answer to this and similar questions.
Kilogram or ton.
Gram and kilogram are units of mass, not of weight. Anyway, a kilogram is 1000 grams.
because there's more space between the molecules in foam than there is in rock
of course not
yes
No.
Sand has more pore space compared to rock. This is because sand particles are smaller and have less surface area than rock particles, allowing for greater pore space between the grains.
1 kilogram = 1000 grams and 1 gram = 1000 milligrams. You now have all the information required to work out, for yourself, the answer to this and similar questions.
That depends what substance you have a kilogram of.A kilogram of air fills many many cc.A kilogram of water fills only 1,000 cc (1 liter).A kilogram if ice fills a few more cc than a kilogram of water does.A kilogram of lead, gold, or rock fills only a small number of cc.
yes
Kilogram or ton.
foam
Yes. Kilogram is the unit of mass.
No, inside a rock is not actually space. Rocks are made up of solid minerals and materials, with no actual empty space within them. The perception of space inside a rock may be due to the gaps between mineral grains or the presence of pores, but it is not the same as outer space.