NW terminology - Structures

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Across
  1. 5. A change that alters the form or appearance of a materials but does not make the material into another substance.,
  2. 6. A substance with a distinct molecular composition that is produced by or used in a chemical process.
  3. 11. Two or more elements that are bonded together.
  4. 14. Two or more substances that are mixed together but not chemically combined.
Down
  1. 1. A substance made of two or more elements chemically combined in a specific ratio or proportion.
  2. 2. One of four phases of matter which does not have a definite shape or volume.
  3. 3. One of four phases of matter which is very rare and present in the sun.
  4. 4. A negatively charged subatomic particle which moves around the nucleus of an atom.
  5. 7. The smallest particle of an element.
  6. 8. One of four phases of matter which has volume and takes the shape of the container it is in.
  7. 9. A substance that cannot be split into a simpler substance; determined by the number of protons.
  8. 10. A subatomic particle with no electric charge that is found in the nucleus of the atom.
  9. 12. One of four phases of matter which has a definite shape and volume.
  10. 13. A positively charged subatomic particle that has a mass of 1. Protons are found in the nucleus of the atom.