Question

Consider water's surface tension and density when it freezes. What causes water to have these properties? What effects do these properties have? Explain in your own words. Cite evidence to support your explanations. 3 simple sentences using Water: A Cool Molecule in achieve 3000

Answer 1

Water molecules stick together because of hydrogen bonds, which gives water strong surface tension and lets small insects walk on it and makes droplets round (Water: A Cool Molecule, Achieve3000).
When water freezes, those hydrogen bonds form a lattice that holds molecules farther apart so ice is less dense than liquid water and floats (Water: A Cool Molecule, Achieve3000).
Because of surface tension and floating ice, water supports life by allowing organisms to live at the surface and by insulating lakes so they don’t freeze solid in winter (Water: A Cool Molecule, Achieve3000).