VOCAB FOR BIOLOGY

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Across
  1. 1. The ability to do work
  2. 3. bonds A chemical bond in which one atom loses
  3. 4. bond A weak bond between two molecules
  4. 5. The smallest unit of an element
  5. 7. bonds A bond between two or more atoms
  6. 9. One of the four substances (earth, water, air, or fire)
  7. 10. Atomic particle with a positive charge
Down
  1. 1. Atomic particle with a negative charge
  2. 2. A tiny piece of something
  3. 6. Its everywhere and takes up space
  4. 7. A material made up of two or more parts
  5. 8. Atomic particle with no charge