2. Bell Ringer _____________– anything that has mass and takes up space _____________- the amount of matter an object has. __________: - the amount of space that matter in an object occupies. ____________- is the amount of mass of an object, it is dependent upon gravity.

3. Bell Ringer Matter– anything that has mass and takes up space _____________- the amount of matter an object has. __________: - the amount of space that matter in an object occupies. ____________- is the amount of mass of an object, it is dependent upon gravity.

4. Bell Ringer Matter– anything that has mass and takes up space Mass- the amount of matter an object has. __________: - the amount of space that matter in an object occupies. ____________- is the amount of mass of an object, it is dependent upon gravity.

5. Bell Ringer Matter– anything that has mass and takes up space Mass - the amount of matter an object has. Volume: - the amount of space that matter in an object occupies. ____________- is the amount of mass of an object, it is dependent upon gravity.

6. Bell Ringer Matter– anything that has mass and takes up space Mass - the amount of matter an object has. Volume: - the amount of space that matter in an object occupies. Weight- is the amount of mass of an object, it is dependent upon gravity.

7. What is the basic unit of matter?

8. ATOMS

9. I. Atoms- basic building block of matter Atoms are arranged to create all of the substances that are present on earth. Atoms are arranged to create all of the substances that are present on earth. These substances can be classified. These substances can be classified.

10. Mixtures

11. A. Elements pure substance that cannot be separated into simpler substance by physical or chemical means. (consist of only one type of atom) pure substance that cannot be separated into simpler substance by physical or chemical means. (consist of only one type of atom)

12. Elements Made up of one type of atom Made up of one type of atom Cannot be broken down by physical and chemical methods Cannot be broken down by physical and chemical methods Examples: Oxygen, Nitrogen, Carbon Examples: Oxygen, Nitrogen, Carbon Sample of the Element Lead Sample of the Element Chlorine

13. B. Compounds Pure substance composed of two or more different elements joined by chemical bonds. (two or more different types of atoms) Pure substance composed of two or more different elements joined by chemical bonds. (two or more different types of atoms) Made of elements in a specific ratio Made of elements in a specific ratio that is always the same that is always the same Has a chemical formula Has a chemical formula Can only be separated by chemical means, not physically Can only be separated by chemical means, not physically

14. Compounds

15. C. Mixtures A combination of two or more pure substances that are not chemically combined. A mixture can contain both elements and compounds. A combination of two or more pure substances that are not chemically combined. A mixture can contain both elements and compounds. substances held together by physical forces, not chemical substances held together by physical forces, not chemical No chemical change takes place No chemical change takes place Each item retains its properties Each item retains its properties in the mixture They can be separated physically They can be separated physically Chem4kids.com

16. Mixtures Mixture of Different Elements Mixture of Different Compounds

17. Homogeneous Mixtures – well mixed; includes solutions and colloids; example salty water and mayonnaise 1. Homogeneous Mixtures – well mixed; includes solutions and colloids; example salty water and mayonnaise Example: Solutions- type of homogeneous mixture formed when one substance dissolves in another. Example: Solutions- type of homogeneous mixture formed when one substance dissolves in another. It is the best mixed of all mixtures. It is the best mixed of all mixtures. A solution always has a substance that is dissolved and a substance that does the dissolving. A solution always has a substance that is dissolved and a substance that does the dissolving. The substance that is dissolved is the solute and the substance that does the dissolving is the solvent. The substance that is dissolved is the solute and the substance that does the dissolving is the solvent. Water = Universal Solvent Water = Universal Solvent 2. Heterogeneous Mixtures – not very well mixed; example – sand and water

18. Mixtures Mixtures are often referred to as homogeneous or heterogeneous.

19. Mixtures Homogeneous mixtures (Solutions) have a uniform distribution. Homogeneous mixtures (Solutions) have a uniform distribution. For example: Tea, Perfume, Air For example: Tea, Perfume, Air

20. Mixtures Heterogeneous mixtures do not have a uniform distribution. Heterogeneous mixtures do not have a uniform distribution. Parts are often visible Parts are often visible For example: Salad, Beach Sand, Oil and Vinegar dressing For example: Salad, Beach Sand, Oil and Vinegar dressing

21. Air is a solution of oxygen and other gases dissolved in nitrogen

22. Ocean water is a solution

23. Examples of homogeneous mixtures Milk, toothpaste, and mayonnaise are homogeneous mixtures. They are also colloids.

24. Examples of heterogeneous mixtures Sand and pebbles Sand and pebbles Oil and water Oil and water Powdered iron and powdered sulfur Powdered iron and powdered sulfur

25. Mixtures

26. How are these classifications determined? Scientists ask themselves these questions? Scientists ask themselves these questions? Is the matter uniform throughout? Is the matter uniform throughout? Can it be separated by physical means? Can it be separated by physical means? Can it be separated by chemical means? Can it be separated by chemical means?

33. Element, Compound, or Mixture? Rocks

34. Rocks

35. Copper

36. Copper

37. Jelly Beans

38. Element, Compound, or Mixture? Jelly Beans

39. Element, Compound, or Mixture? Table Sugar

40. Element, Compound, or Mixture? Table Sugar

41. Element, Compound, or Mixture? Diamond

42. Diamond

43. Tea

44. Tea

45. Salt

46. Salt

47. Neon Gas

48. Element, Compound, or Mixture? Neon Gas

49. Element, Compound, or Mixture? Salad

50. Salad

51. Pure Water

52. Element, Compound, or Mixture? Pure Water

53. Element, Compound, or Mixture? Aluminum

54. Aluminum

55. Lemonade

56. Lemonade

57. Silver

58. Silver

59. Sand

60. Sand