Matter in our surroundings

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Across
  1. 1. It is made up of small particles.
  2. 4. A form of matter formed by the chemical combination of two or more atoms.
  3. 7. Intermixing of particles of matter on their own.
  4. 8. The change of solid state directly into gaseous state.
  5. 10. A surface phenomenon.
Down
  1. 2. The smallest unit of matter.
  2. 3. A type of molecule in which particles of some type are attached chemically.
  3. 5. Method to liquify atmospheric gases.
  4. 6. A form of matter in which atoms of various kinds combine physically.
  5. 9. A type of molecule in which atoms combine together chemically in a fixed ratio.