Sasha's Homework Crossword

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Across
  1. 3. A unit or system of units used for expressing how much an object
  2. 6. Suitable or proper in the circumstances.
  3. 9. A multiplier or factor that measures a particular property.
  4. 10. Constituting number one hundred in a sequence; 100th.
  5. 11. A proposition made as a basis for reasoning, without any assumption of its truth.
  6. 13. Put (something) forward as a hypothesis
  7. 15. Converting or being converted into vapour.
  8. 18. The distance between the highest and lowest points of a ski area.
  9. 19. A number which is not a fraction; a whole number.
Down
  1. 1. At a steep angle; sharply.
  2. 2. The force that attracts a body towards the centre of the earth, or towards any other physical body having mass.
  3. 4. The zodiacal sign or constellation of Libra.
  4. 5. The conversion of a vapour or gas to a liquid.
  5. 7. Inspiring a feeling of wonder or delight; marvellous.
  6. 8. Deeply shocking; astonishing.
  7. 10. Parallel to the plane of the horizon; at right angles to the vertical.
  8. 12. The refusal to accept or comply with something.
  9. 14. Seeming reasonable or probable.
  10. 16. A portion of an object or of material, produced by cutting, tearing, or breaking the whole.
  11. 17. A unit or system of units used for expressing how much an object or quantity weighs