Chemistry

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Across
  1. 2. Refers to how many particles can be packed into a given space
  2. 3. When a liquid becomes a gas, the particles are __________ away compared to when they were organised as a liquid.
  3. 5. Gases ________ when they are heated because they are moving faster and hitting the side of the contained with more force.
  4. 7. When atoms group together, these are called__________.
  5. 9. Materials that are less dense than others will __________.
  6. 10. When particles are heated, they are given more energy. As a result, particles will vibrate ________.
Down
  1. 1. When a chemical reaction takes place, the atoms ___________ themselves to make new substance
  2. 4. When perfume is sprayed in the corner of a room, the people on the opposite side of the room will eventually be able to smell the scent of the perfume. This is a result of a process called_________.
  3. 6. No matter what state (solid, liquid or gas) particles are always
  4. 8. Atoms ________ be created or destroyed