| SILICA | Compound that constitutes more than half the mass of Earth's crust |
| SUN | Celestial body that constitutes more than 99% of the mass of the solar system |
| PLUTO | It has only one-sixth of the mass of Earth's moon |
| KINETICENERGY | It's equal to half the mass times the velocity squared |
| PSALM | Any of the 150 sacred songs, poems and prayers that constitute the book of the Old Testament that follows the Book of Job (5) |
| KILOGRAM | Metric unit of mass that is very nearly equal (it was originally intended to be exactly equal) to the mass of 1,000 cubic cm of water. The pound is defined as equal to 0.45359237 of this unit. (8) |
| ANTS | Insects studied in myrmecology that constitute the majority of the diet of green woodpeckers (4) |
| HYPHA | Any of the slender branched filaments that constitute the body (mycelium) of a fungus (5) |
| OXYGEN | Accounting for 65 per cent of the mass of the human body, the third-most abundant element in the universe, atomic number eight (6) |
| MOUSSE | French word first used in English to describe the mass of tiny bubbles on the surface of a glass of champagne, later for a light frothy whipped pudding, reminiscent of this (6) |
| SCRAPE | A very thin layer of butter on a piece of bread or toast; a tuneless stroke of a violin bow; a mass of earth dug up by a rabbit; or, an awkward or embarrassing predicament (6) |
| OAHU | Island that constitutes the bulk of Honolulu County |
| ANATOLIA | Large Asian peninsula that constitutes the major part of modern Turkey (8) |
| MENSREA | Intention or knowledge of wrongdoing that constitutes part of a crime (4,3) |
| ASIA | Continent that's home to more than half the world's population |
| REALALE | Objective of campaign - note, more than half the battle is over |
| CYAN | Colour of more than half the poison (4) |
| SOCIAL | Informal gathering of more than half the party members (6) |
| AFRICA | More than half the people of which continent are aged under 20? (6) |
| DUBAI | One of the states that constitute the United Arab Emirates (5) |
