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Bell Ringer

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. Bell Ringer.

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Bell Ringer

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  1. 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.

  2. 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.

  3. 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.

  4. 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.

  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. Weight- is the amount of mass of an object, it is dependent upon gravity.

  6. What is the basic unit of matter?

  7. What is the basic unit of matter? ATOMS

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

  9. Elements Molecules Compounds Molecules Mixtures

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

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

  12. B. Compounds H2O NaCl CO2 • 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 that is always the same • Has a chemical formula • Can only be separated by chemical means, notphysically

  13. Compounds

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

  15. Mixtures Mixture of Different Compounds Mixture of Different Elements

  16. 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. • It is the best mixed of all mixtures. • 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. • Water = Universal Solvent 2. Heterogeneous Mixtures – not very well mixed; example – sand and water

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

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

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

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

  21. Ocean water is a solution

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

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

  24. Elements Compounds Molecules Mixtures

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

  26. Element, Compound, or Mixture? Rocks

  27. Element, Compound, or Mixture? Rocks

  28. Element, Compound, or Mixture? Copper

  29. Element, Compound, or Mixture? Cu Copper

  30. Element, Compound, or Mixture? Jelly Beans

  31. Element, Compound, or Mixture? Jelly Beans

  32. Element, Compound, or Mixture? Table Sugar

  33. Element, Compound, or Mixture? C12H22O11 Table Sugar

  34. Element, Compound, or Mixture? Diamond

  35. Element, Compound, or Mixture? C Diamond

  36. Element, Compound, or Mixture? Tea

  37. Element, Compound, or Mixture? Tea

  38. Element, Compound, or Mixture? Salt

  39. Element, Compound, or Mixture? NaCl Salt

  40. Element, Compound, or Mixture? Neon Gas

  41. Element, Compound, or Mixture? Ne Neon Gas

  42. Element, Compound, or Mixture? Salad

  43. Element, Compound, or Mixture? Salad

  44. Element, Compound, or Mixture? Pure Water

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