The water molecules expand when the temp. drops.
Dense water sinks in comparison to less dense water.
Ice is less dense than water
no
A wooden block can be less dense than water.
no beacause a rubber duck floats and if an object floats in water, is is less dense than the water if it sinks it is more dense
If more dense, it will sink when put into water; if less dense it floats.
Chlorine gas is less dense than water, so it will float on top of water if the two are in contact.
Oil IS already less dense than water.
No. Ice is less dense than water. Because ice is less dense it displaces less water and floats. Water is most dense at 4o C. any change in temperature, either up or down, lowers the density.
Easy, put a fruit in water and if it floats it is less dense than water.
Dense
Yes. Anything that is less dense than water will float on water.