Water is everywhere! It makes up 75 percent of the Earth’s surface and more than 60 percent of our body weight. But in its smallest, most basic form, water is a tiny molecule made from hydrogen and oxygen. Two positively charged hydrogen atoms are bonded with one negatively charged oxygen atom. The result is one water molecule that has a positive charge on one end and a negative charge on the other. The presence of opposite charges in each water molecule is called polarity.
The simplest form of water is a(n)
A
molecule.
B
element.
C
atom.
D
cell.