Semester 1 puzzle

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Across
  1. 3. The element that is found in period 3, group 13 of the periodic table
  2. 4. The study of matter and energy and the interaction between them
  3. 8. The ability to be hammered or pressed into sheets
  4. 9. A way of reporting data based on numbers and obtain by measurement
  5. 10. A mixture that does not have an uniform appearance and is unevenly distributed
  6. 12. A row in the periodic table of the elements
  7. 14. Anything that has mass and occupy space
  8. 15. A workable explanation or description of a phenomenon
  9. 17. A negatively charged ion
  10. 18. Both the protons and neutrons are found in an atom
  11. 20. The electrons found on the outer most energy level is known as _____ electrons
Down
  1. 1. The study of the composition, structure, and properties, and changes in matter.
  2. 2. Law of octave states that every _____ element is similar
  3. 5. An SI unit that represents the intensity of light
  4. 6. A subatomic particle found in the nucleus of an atom, and is having a positive charge
  5. 7. The relatively slow form of vaporization
  6. 10. One of the scientific inquiry processes that allow initial, testable explaination
  7. 11. A pure substance that consist of atoms with the same atomic number
  8. 13. Any elements found in Group 17 are known as ----
  9. 16. An element found in the inner-transition metal and has an atomic number of 92
  10. 19. The state of matter in which particles vibrates in fixed positions, have a fixed shape and volume