Across
- 2. a guide for the imagination which describes a theory
- 3. subatomic particles having a positive charge
- 6. a question is this if it contains both independent and dependent variables
- 8. the study of matter (anything that has a mass and takes up space)
- 12. the metric prefix which means "ten times"
- 14. the "responding" variable
- 15. the metric prefix which means "one thousandth"
- 20. change of state from a gas to a liquid
- 22. type of bond where one "atom" transfers electrons to another
- 24. Li, Na, and K are this type of "group I" metal
- 25. type of "foil" used by Ernest Rutherford in his famous experiment which identified the "nucleus" of the atom
- 26. A "solution" is also known as a ____ mixture.
- 28. Group VII non-metals (e.g. Cl) are also known as ____
- 29. type of bond where atoms "share" electrons
- 30. You're making an ____ if the "water rushing down the window" is interpreted as "rain".
- 31. metal which is a good conductor of electricity and commonly used for electrical wiring
- 35. the act of seeking an answer to a question or a solution to a problem
- 37. opposite of "expansion"
- 38. the "starting materials" in a chemical change that eventually become the "products"
- 41. ____ and pestle
- 42. the last section of a lab report
- 43. variables kept "constant" to keep the experiment "fair"
- 45. Water, having both O and H atoms, is classified as this type of pure substance.
- 46. part of a Bunsen burner: gas ____ screw
- 48. (Material) Safety _____ Sheet
- 49. "Pb" on the Periodic Table
Down
- 1. Oxygen, containing only O atoms, is classified as this type of pure substance.
- 3. mass, volume and density are ____ properties of matter
- 4. "W" on the Periodic Table
- 5. neither metals nor non-metals on the Periodic Table
- 7. an "educated guess"
- 9. "All I did on Monday was wash and ____ the clothes!", she complained.
- 10. DESCA: data, ____, substitute, calculate, answer
- 11. _____ Hazardous Materials Information System (WHMIS))
- 13. change of colour, formation of a precipitate, etc. are clues of this type of change
- 16. the "state" having particles with both vibrational and translational motion energy and a "medium" amount of motion energy, overall
- 17. type of gas present when a "flaming" splint "pops"
- 18. another term for "freezing"
- 19. Al2O3 is called aluminum ____
- 21. can be quantitative or qualitative
- 23. "atoms" which have lost or gained electrons to become "charged"
- 27. curved surface of liquid in a graduated cylinder
- 32. rows of the Periodic Table
- 33. columns of the Periodic Table
- 34. type of variable manipulated by the experimenter
- 36. part of Bunsen burner adjusted to convert orange flame to blue
- 39. lightest of the subatomic particles
- 40. type of subatomic particle found along with protons (in the nucleus)
- 44. "state" in which particles have the greatest attraction for one another
- 47. sets electronic mass balance to "zero"