chemistry

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Across
  1. 3. It is a graduated glass tube with a tap at one end, for delivering known volumes of a liquid.
  2. 6. a simple container for stirring, mixing and heating liquids.
  3. 7. It has a round body, a long neck, and often a flat bottom.It is used as a container to hold liquids.
  4. 10. used for holding and heating liquid chemicals
  5. 11. It is a piece of laboratory equipment used to produce an open flame. It can be made from brass, glass, stainless steel or aluminium.
  6. 12. A cup in which ingredients are crushed or grounded.
  7. 13. Used to measure liquid volume and volume of irregular shaped objects by water displacement method
  8. 15. model of atom was a solid, dense sphere
  9. 18. Used as a cover or sample plate
  10. 20. It is a squeeze bottle with a nozzle, used to rinse various pieces of laboratory glassware, such as test tubes and round bottom flasks.
  11. 21. used to measure temperature.
Down
  1. 1. It is a flask having a wide base, narrow neck, and conical form, convenient in laboratory experimentation for swirling liquids by hand.
  2. 2. pot of clay or other refractory material. Used from ancient times as a container for melting or testing metals.
  3. 4. included electrons in the atom (plum pudding model)
  4. 5. It is a pipette with its volume, in increments, marked along the tube.
  5. 8. It is used for separating solid substances from solution.
  6. 9. It is used to take small quantities of solid chemicals.
  7. 14. believed atoms were mostly empty space (not solid like others)
  8. 16. disputed that everything was made of fire, water, earth, and wind
  9. 17. a glass stirring rod whic is used to mix or stir liquids and chemicals.
  10. 19. An iron tripod placed over a fire.