Kadyn science crossword

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Across
  1. 3. used to be the smallest plane in our solar system, but is no longer considered a planet
  2. 6. a water molecule that has gained a hydronium
  3. 8. the third planet from the sun
  4. 9. a system of measurement that expresses how acidic or basic a substance is
Down
  1. 1. the largest planet in our solar system with rings around it
  2. 2. the largest planet in our solar system
  3. 4. a massive ball made up of hydrogen and carbon
  4. 5. a combination of two or more substances that are physically combined
  5. 7. a homogenous mixture throughout which two or more substances are uniformly dispensed
  6. 10. any compound that increases the number of hydroniumnium ions when dissolved in water