Crossword Puzzle - Victoria Brina 8C

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Across
  1. 4. / Sub-particles that have a positive charge.
  2. 6. Table / Elements are organized in it.
  3. 8. Change / When one substance changes to another substance.
  4. 9. / The state of matter that has a definite volume, but takes up the space of the container in which it is placed.
  5. 14. / Another Greek philosopher who disagreed with Democritus' ideas. He believed that you could never end with a particle that can't be cut.
  6. 16. / A scientist who discovered that particles have sizes and charges.
  7. 18. / The most common element in the universe. It is in the 1st place on the periodic table.
  8. 19. / Sub-particles that do not have an electrical charge.
  9. 20. Experiment / An experiment performed by Rutherford, who demonstrated that the nucleus has positive charges.
  10. 21. / A scientist who proposed the movement and position of the electrons around the nucleus.
  11. 23. / A Greek philosopher who thought that you would eventually end up with a particle that could not be cut.
  12. 26. of Matter / The physical forms in which a substance can exist. Example: Solid, liquid, and gas.
  13. 27. / A group of elements,in the periodic table, which are a great conductors of heat and electricity. They are shiny, and reflect light well.
  14. 29. / The state of matter that has no definite shape or volume.
  15. 30. / Any substance that has a mass, and occupies a space.
  16. 32. / An atom that has gained or lost one or more of its electrons.
  17. 33. in Pudding / An experiment made by Thomson, he thought that electrons were mixed throughout an atom. (HINT: It involves pudding)
Down
  1. 1. / Small particles that made up protons and electrons.
  2. 2. / The smallest piece of matter, that still has the properties of an element.
  3. 3. / A scientist who stated that all substances are made of atoms. Atoms are small particles that can be divided, created, or destroyed.
  4. 4. Change / Change in a substance's size, shape, or state of matter.
  5. 5. / An element that has only 2 protons, 2 electrons, and 2 neutrons. It is one of the noble gases. (HINT: Is less dense than the air).
  6. 7. / Sub-particles that have negative charge.
  7. 10. A physical property of a metals, which is the ability to be stretched into wires.
  8. 11. / A pure substance which has a fixed composition, can be divided into metals, metalloids, and non-metals.
  9. 12. / The complete opposite of metals, a group of elements, in the periodic table, which are poor conductors of heat and electricity, and have a dull appearance.
  10. 13. / A group of elements, in the periodic table, which have both properties of metals and non-metals. Example: Silicon.
  11. 15. Cloud / The group of electrons surrounding the nucleus of an atom.
  12. 17. / Atoms of the same element with different number of neutrons.
  13. 22. number / The sum of protons and neutrons located in the nucleus of an atom.
  14. 24. / The only room temperature liquid metal. It is used in thermometers and batteries.
  15. 25. / Experimented with a cathode-ray tube, and discovered negatively charged particles.
  16. 28. / The state of matter that has a definite shape and volume.
  17. 31. number / Number of protons in an atom.