I chose the water molecule because we need water to live. Water is so important in our life. Without it, we cannot live. Water is all around us. The air, the trees, even your blood has water! Water can take many forms as well. Take ice. Ice is just water that is frozen. Think about rain, it rains, then the water evaporates into clouds and the air. We use water for many things. Drinking, boiling, even electricity! Many things use water like making a cake. Or when bread is made. We need water. It is so important to are lives. Think about swimming.
The water molecule is made of h2o. Meaning two hydrogen and one oxygen. These two elements make up water.
Water is one of the most important molecule on earth, without it, nothing will live. That is why I chose water as my molecule.