1
																				2						3			4
								5
						6					7		8					9
																										10
																11
							12											13			14
	15								16
17											18
																												19
20
			21
																															22
					23																		24		25
26											27																	28
	29
																				30
	31
																		32
33
34								35				36					37				38				39							40
																											41
														42
								43
																							44
											45
																									46

Across 3. the samllest ubit of matter that retains the identity of the substance 6. transform from one form to another 10. the amount of matter contained in a substance 13. region surrounding the nucleus of an atom where electrons are most likely to be found 17. subatomic particle with a positive charge 18. Iron, Copper,Nickel,Silver, Gold 19. elements that occur in a vertical column on the periodic table that have similiar properties 20. the ability to conduct electrical current 21. a characteristic of a substance the can be obsereved without changing the identity of the substance 26. anything that has mass and takes up space 27. does not change the identity of the substance 29. the ability to attract 30. an arrangement of elements in order of increasing atomic numbers 31. melting ice 32. temp at which a liquid changed to a gas 34. atom with the same number of protons but a different number of neutrons 41. the amount of space and object takes up 42. temperature needed to raise 1 gram of water 1 degree Celcius 43. subatomic partical with a neutral charge 44. a characteristic of a substance that can be observed 45. soemthing that produces an observable physical change but still retains its orginal form 46. mass per unit of volume

Down 1. a mixture of separating a mixture based on polarity and solubility 2. the substance being dissolved 3. the average mass numer of all isotopes of an atom 4. protons+neutrons 5. a state of matter wih no definite shape or volume 7. a substance that cannot be broken down into simplier substances by ordinary means 8. an element above and to the right of the stair step line of metalloids 9. the ability to be hammered into a thin sheet 11. when a new substance forms 12. ability to be dissolved 14. burning paper 15. elements that occur in a horizontal row on the periodic table 16. characteristic of a substance that can be observed ONLY when the identity of the substance has changed 22. a Russian scientist who discovereda set of patterns that applied to the elements 23. temperature at which a liquid changes into a solid 24. the number of protons in the nucleus of an atom 25. a state of matter that has definite shape and definite volume 28. temperature at which a solid turns into a liquid 33. a state of matter that has no definite shape but has a definite volume 35. the substance doing the dissolving 36. subatomic particle with a negative charge 37. the ability to be stretched into a thin wire 38. the central part of the atom containing protons and neutrons 39. element with properties of both metals and nonmetals 40. an element below and to the left of the stair step line of metalloids