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Matter Classification Matter: Anything that takes up space!!!

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Presentation on theme: "Matter Classification Matter: Anything that takes up space!!!"— Presentation transcript:

1 Matter Classification Matter: Anything that takes up space!!!

2 Pure Substances A sample of matter that has definite chemical and physical properties.

3 Elements

4 Compounds Made of elements in a specific ratio that is always the same Has a chemical formula Can only be separated by chemical means, not physically

5 Pure Substances Element composed of identical atoms EX: copper wire, aluminum foil

6 Pure Substances Compound composed of 2 or more elements in a fixed ratio properties differ from those of individual elements EX: table salt (NaCl)

7 Pure Substances For example: compounds Two different compounds, each has a definite composition.

8 Mixtures Variable combination of 2 or more pure substances. Heterogeneous (Mechanical Mixture) Homogeneous (solution)

9 Mixtures: Homogenous Solution homogeneous very small particles no Tyndall effect Tyndall Effect –particles dont settle –EX: rubbing alcohol

10 Mixtures Mechanical Mixture Not of a uniform composition throughout Heterogenous

11 Mixtures: Heterogenous Suspension Heterogeneous When mixed, a suspension can look uniform particles settle = more than one distinct layer EX:fresh-squeezed lemonade

12 Mixtures vs. Compounds http://www.bbc.co.uk/schools/ks3bitesize/science/chemistry/elements_com_mix_6.shtml

13 Can you identify the following? You will be shown a series of photos. Tell if each photo represents an item composed of an element, compound, or mixture. Review: An element contains just one type of atom. A compound contains two or more different atoms joined together. A mixture contains two or more different substances that are only physically joined together, not chemically. A mixture can contain both elements and compounds.

14 Element, Compound, or Mixture? Rocks

15 Element, Compound, or Mixture? Rocks

16 Element, Compound, or Mixture? Copper

17 Element, Compound, or Mixture? Copper

18 Element, Compound, or Mixture? Jelly Beans

19 Element, Compound, or Mixture? Jelly Beans

20 Element, Compound, or Mixture? Table Sugar

21 Element, Compound, or Mixture? Table Sugar

22 Element, Compound, or Mixture? Diamond

23 Element, Compound, or Mixture? Diamond

24 Element, Compound, or Mixture? Tea

25 Element, Compound, or Mixture? Tea

26 Element, Compound, or Mixture? Salt

27 Element, Compound, or Mixture? Salt

28 Element, Compound, or Mixture? Neon Gas

29 Element, Compound, or Mixture? Neon Gas

30 Element, Compound, or Mixture? Salad

31 Element, Compound, or Mixture? Salad

32 Element, Compound, or Mixture? Pure Water

33 Element, Compound, or Mixture? Pure Water

34 Element, Compound, or Mixture? Aluminum

35 Element, Compound, or Mixture? Aluminum

36 Element, Compound, or Mixture? Lemonade

37 Element, Compound, or Mixture? Lemonade

38 Element, Compound, or Mixture? Silver

39 Element, Compound, or Mixture? Silver

40 Element, Compound, or Mixture? Sand

41 Element, Compound, or Mixture? Sand

42


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