Biology 8H Basic Chemistry, Lab Safety, and Microscopes

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Across
  1. 5. the three adjustable lenses (4x, 10x, 40x)
  2. 6. because of the distribution of electrons, water is a ____ molecule
  3. 10. always wear these in lab to protect your eyes
  4. 11. when water is attracted to other substances
  5. 13. a pure substance with only one type of atom in it
  6. 14. a combination of two or more atoms
  7. 16. the element represented by 'H'
  8. 19. combination of 2 or more elements in definite proportions
  9. 22. _____ drink or eat in the lab area
  10. 23. the two types of ___ are covalent and ionic
Down
  1. 1. multiplying the eyepiece x objective lens gives total ____
  2. 2. the element represented by 'C'
  3. 3. a metric unit of length often used on microscopes
  4. 4. particle inside atoms that is positive (+)
  5. 7. the element represented by 'O'
  6. 8. when water is attracted to itself (other water molecules)
  7. 9. where the slide is secured to the microscope
  8. 12. the neutral particle inside atoms
  9. 15. the basic unit of matter
  10. 17. particle inside atoms that is negative (-)
  11. 18. this term describes the center of the atom (proton and neutrons)
  12. 20. also known as the eyepiece
  13. 21. the area you can see on the slide is known as the ___ of view