EVERYDAY SCIENCE

Detailed explanation-1: -Because the glass marble always sinks, the glass of the marble must be more dense than water. Objects that are more dense than water can also float due to surface tension. Surface tension occurs because molecules of a liquid are more attracted to each other more than they are to other objects.

Detailed explanation-2: -The marble is denser than water and sinks in water; it is an example of a solid. The weight of marble is more than an equivalent volume of water. Thus the marble is denser than water.

Detailed explanation-3: -If an object is more dense than water it will sink when placed in water, and if it is less dense than water it will float.

Detailed explanation-4: -Answer. Answer: Objects like coins, rocks, and marbles are more dense than water. They will sink.

Detailed explanation-5: -Clay has oxygen atoms like water, but it also has heavier atoms like silicon and aluminum. The oxygen atoms are bonded to the silicon and aluminum to make molecules with a lot of mass. These are packed closely together, which makes the clay more dense than water.