States of matter

123456789
Across
  1. 2. matter is made up of this
  2. 6. the process through which solids change directly into gases
  3. 7. state of matter that experiences highest rate of diffusion
  4. 9. the mass per unit volume of a substance
Down
  1. 1. anything that occupies space and has mass
  2. 3. state of matter that has more interparticle space than solids but less than gases
  3. 4. the particles of matter are very _____
  4. 5. the intermixing of particles on their own
  5. 8. State of matter that has definite shape and volume