Yes it does!
A rock, for one, although pumice will float. Any object whose desnsity is greater than water's will sink.
By water
Maple syrup will sink but water is unable to sink because it is water.
the water sink is not solid and liquid
object that sink in water
water
Silicon will sink in water.
yes metal sink in water
Pumice stone does not sink in water
A needle sink in water.
Pumice does not sink in water.
Promethium sink in water.