Phases of Matter

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Across
  1. 1. Anything that has mass and takes up space
  2. 5. When liquid reaches this, it has enough energy to become a gas
  3. 7. High-energy state made up of charged particles
  4. 8. The basic building blocks of all substances
  5. 11. Liquid to Solid- Remove heat to slow particles
  6. 12. Gas to Solid- Reverse of sublimation, such as frost forming on a cold surface
  7. 13. Solid to Gas- When substances skip the liquid phase, such as dry ice
  8. 14. Particles move freely and spread out to fill the space available
  9. 15. Has a definite shape and volume
Down
  1. 2. Liqid to Gas- When particles escape to become a gas (think disappearing water)
  2. 3. Gas to Liquid- When water droplets form on a cold glass of lemonade on a hot day
  3. 4. Matter that takes the shape of its container but maintains volume
  4. 6. Solid to Liquid- Particles separate when heat is applied
  5. 9. The weight of matter
  6. 10. The amount of space matter takes up