y as in pyramid

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Across
  1. 1. Having a meaning that is mysterious or obscure.
  2. 5. Words that sound the same and are spelt the same but have different meanings are called homonyms.
  3. 7. Synonym is a word or phrase that means exactly or nearly the same as another word or phrase in the same language, for example shut is a synonym of close.
  4. 8. A logo or mark representing something.
  5. 9. A substance able to increase the rate of a chemical reaction without itself being consumed or changed by the reacting chemicals
  6. 11. If the shapes can be divided into two equal parts with two lines, then the shapes are said to have two lines of symmetry.
  7. 14. This is a _______ week.
  8. 15. Lymph is a clear fluid that flows through your body.
  9. 16. ______ is in the air.
  10. 17. I like to see the _______s in Egypt.
Down
  1. 2. A cylinder is a 3D shape two parallel circular bases
  2. 3. I felt a little bit of sympathy for my brother.
  3. 4. I went to the _________ on Saturday.
  4. 6. In _______ there are lots of pyramids.
  5. 10. I sang the lyric of the song I was singing.
  6. 12. Mythology is a collection of myths, especially one belonging to a particular religious or cultural tradition.
  7. 13. supplied, treated, or enriched with oxygen.