Final answer:
Water's polarity allows for the formation of hydrogen bonds, resulting in unique properties critical for life. It forms a lattice crystal when it freezes, making ice less dense and causing it to float.
Step-by-step explanation:
Water's polarity allows for the formation of hydrogen bonds, resulting in many unique properties critical for life. Water is an excellent solvent, has high heat capacity, and exhibits cohesive and adhesive properties. It forms a lattice crystal when it freezes, making ice less dense and causing it to float. The polarity of water's bonds allows for the formation of hydrogen bonds between molecules.
Learn more about Water's properties