Matter

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Across
  1. 1. a coherent, typically large body of matter with no definite shape
  2. 5. a thing that is composed of two or more separate elements
  3. 8. the theory that all matter is made up of tiny indivisible particles
  4. 9. the basic unit of a chemical element
  5. 10. a substance that flows freely but is of constant volume, having a consistency like that of water or oil
Down
  1. 2. firm and stable in shape; not liquid or fluid
  2. 3. a book forming part of a work or series
  3. 4. a means of solving a problem or dealing with a difficult situation
  4. 6. a substance or matter in a state in which it will expand freely to fill the whole of a container, having no fixed shape and no fixed volume
  5. 7. a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction