Water is made up of two elements, hydrogen and oxygen and its chemical formula is H2O. This means that each molecule of water is made up of two hydrogen atoms bonded to a single oxygen atom. The existence of water is essential for life on Earth and can have three different states, liquid, solid and gas.
Science Question 1- what process is used to turn a solid into a liquid?
Science Question 2- what process is used to turn a liquid into a gas?
Science Question 3- what process is used to turn a liquid into a solid?