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.
What age do kids start fifth grade? Since kids generally start kindergarten at age 5, then they  would be 10 when they start 5th grade.     But, this can vary, depending on their birthday, the cutoff daâ¦te  for starting school in their state, and whether or not they ever  got held back.