Question

in colder climate regions, lakes and ponds freeze in the winter. the solid ice stays on the surface and the water below the ice is liquid. which property of water explains this phenomenon?

waters cohesive properties keep the molecules close together, therefore, increasing the density of ice.
a lower ph makes the water more acidic, resulting in the neutral ice floating.
bonds between the water atoms break, allowing water to fill the spaces created between the atoms.
water molecules arrange themselves in a structure with more space between them, making the ice less dense and causing it to float.

Explanation:

Water molecules form an open - lattice structure in ice with more space between them, making ice less dense than liquid water, so it floats.

Answer:

Water molecules arrange themselves in a structure with more space between them, making the ice less dense and causing it to float.