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.
Report Abuse. Most kids start primary school (elementary) at around 5-6 years of age. From there it gets a little weird for middle school (jr. high), some place start it in the 6th year, others the 7th, then in high school, it starts at the 9th year, so freshmen are usually 13-14 years of age and graduate at 17 or 18.est Answer: Well, usually in Elementary School, we have 5 grades: 1st grade, 2nd grade, 3rd grade, 4th grade, and 5th grade. Junior High, or as most people call it Middle School, is: 6th grade, 7th grade, 8th grade. High school is: 9th grade(freshman), 10th grade(sophomore), 11th grade(junior), 12th grade(senior).