Carbon dioxide is a gas at room temperature, diamonds are solid, and I see no room... What is in order from least to greatest in density. Solid liquid gas. Gas is always more dense than any solid or liquid.
Fourth grade is the equivalent of 'Year 5' (ages 9â10) in England and Wales, Primary 6 in Northern Ireland and Primary 6 in Scotland - the sixth year of compulsory education in England, Wales, Scotland and Northern Ireland.
Pre-school with two levels of one year: pre-kindergarten and kindergarten. 1  Itâs attended by children between the ages of four and five. This is the only level where attendance is not compulsory. 2  Primary or Elementary School: This level lasts for six years, and it is for kids between six and 12 years old. Secondary School: For children between 12 and 15 years old. Ends after three years with a school-leaving certificate. High school: Lasts three years, and is for students between 15 and 18 years old.