project Google (14) Kash Doll - For... 5 Jasmine Cannon -... s Jasmine Cannon -.. New Tab Next > Pretest - Literature Submit Test Reader Tools 14 When water temperature drops, the hydrogen atoms in water molecules are more tightly drawn together in what is called "hydrogen bonding." As the molecules near 0°C, the hydrogen atoms bond tightly, forming rigid crystals like those that you can see in snowflakes. These crystals have more space between them than water molecules at warmer temperatures, thus creating an expansion not seen In other frozen substances. Which causes water to expand at freezing temperatures? A loose crystal structure of water molecules B. reduced density of water molecules OC. hydrogen bonds of water molecules D. none of the above Reset Next hts reserved.