One cannot answer this question until one knows to what center is being referred.
why does the lava sink or rise?
Depends entirely upon the wood. Some woods sink in water. Density of alcohol is 0.789.
It depends on the density of an object. If the density is higher than the density of the liquid, the it sink. If it's less, it floats.
some tea bags float and some sink. few factors are to be taken into consideration here 1. some float because there might be air present in the tea bag between the tea dust . Try pressing the tea bag hard and drop it into the milk or water or any solvent, it must sink. 2. Now the second factor is the weight of the tea bag. If tea bags are light they are hard to sink (reason is buoyancy and surface tension).
I recommend you fill up a dishpan with water and drop some vegetables in it to find out.
why would the heavier metals sink to the center during the formation of the earth is like
Cooking Center, Sink Center, and Cold-Storage Center
Cooking Center, Sink Center, and Cold-Storage Center
Cooking Center, Sink Center, and Cold-Storage Center
NO!
Cooking Center, Sink Center, and Cold-Storage Center
why would the heavier metals sink to the center during the formation of the earth is like
Undergoing differentiation.
Differentiated or stratified.
denser things sink faster the denser it is then the faster it will sink
it's because of the gravitational force.
Maybe because they build it to not sink and some things sink because it is how it's made