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Ch. 1  Sec. 1 Describing Matter
<ul><li>Describe  9  of the objects.  </li></ul>Describing Matter Activity 2. Classify the objects into 3 categories. Obje...
matter <ul><li>anything that has mass & takes up space </li></ul>
chemistry <ul><li>study of properties of matter & how matter changes </li></ul>
substance <ul><li>Single kind of matter that is pure </li></ul><ul><li>Has specific: </li></ul><ul><li>makeup or compositi...
2 kinds of properties physical property chemical  property can be observed  w/out changing it into  another substance new ...
 
 
What are the frog’s physical properties?
What are the frog’s chemical properties?
What are the frog’s chemical properties?
element <ul><li>Pure substance cannot be broken down into any other substances by chemical or physical means </li></ul>
<ul><li>ALL MATTER IS MADE OF ELEMENTS. </li></ul>
atom <ul><li>basic particle from which elements are made </li></ul>
Elements: One Kind of Atom [01:14]
 
 
chemical bond <ul><li>force of attraction between 2 atoms </li></ul>
molecule <ul><li>2 or more atoms held by chemical bonds </li></ul>
 
Molecules: More Than One Kind of Atom [00:30]
ACTIVITY-MAKING MOLECULES <ul><li>H 2 O </li></ul><ul><li>C O 2 </li></ul><ul><li>C 2 H 4 </li></ul><ul><li>C Cl 4 </li></...
 
compound <ul><li>Pure substance made of 2 or more elements chemically combined in a set ratio </li></ul><ul><li>Represente...
mixture <ul><li>2 or more substances that are mixed together but  not  chemically combined </li></ul><ul><li>cereal </li><...
solution <ul><li>well mixed mixture </li></ul><ul><li>sea water, lemonade </li></ul>
heterogeneous mixture  <ul><li>can see different parts </li></ul>
homogeneous mixture <ul><li>substances evenly mixed so you can’t see different parts </li></ul><ul><li>solution </li></ul>
Heterogeneous and Homogeneous Mixtures [01:16]
 
Activity- Separating a Mixture corn Chex wheat Chex Round pretzels Bread-sticks Bagel chips Window-pane pretzels
Classify each item as either an  element (E) , a  compound (C) , or a  mixture (M) . You may also use your textbook and th...
Classify each item as either an  element (E) , a  compound (C) , or a  mixture (M) . You may also use your textbook and th...
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8th Grade-Ch. 1 Sec. 1 Describing Matter

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Transcript of "8th Grade-Ch. 1 Sec. 1 Describing Matter"

  1. 1. Ch. 1 Sec. 1 Describing Matter
  2. 2. <ul><li>Describe 9 of the objects. </li></ul>Describing Matter Activity 2. Classify the objects into 3 categories. Object Description (color, texture, shape,etc.) Silver Round Flexible
  3. 3. matter <ul><li>anything that has mass & takes up space </li></ul>
  4. 4. chemistry <ul><li>study of properties of matter & how matter changes </li></ul>
  5. 5. substance <ul><li>Single kind of matter that is pure </li></ul><ul><li>Has specific: </li></ul><ul><li>makeup or composition </li></ul><ul><li>set of properties </li></ul><ul><li>ex: salt, sugar </li></ul>
  6. 6. 2 kinds of properties physical property chemical property can be observed w/out changing it into another substance new materials are formed <ul><li>examples: </li></ul><ul><li>hardness </li></ul><ul><li>texture </li></ul><ul><li>color </li></ul><ul><li>flexibility </li></ul><ul><li>example: </li></ul><ul><li>flammability </li></ul><ul><li>ability to react </li></ul>
  7. 9. What are the frog’s physical properties?
  8. 10. What are the frog’s chemical properties?
  9. 11. What are the frog’s chemical properties?
  10. 12. element <ul><li>Pure substance cannot be broken down into any other substances by chemical or physical means </li></ul>
  11. 13. <ul><li>ALL MATTER IS MADE OF ELEMENTS. </li></ul>
  12. 14. atom <ul><li>basic particle from which elements are made </li></ul>
  13. 15. Elements: One Kind of Atom [01:14]
  14. 18. chemical bond <ul><li>force of attraction between 2 atoms </li></ul>
  15. 19. molecule <ul><li>2 or more atoms held by chemical bonds </li></ul>
  16. 21. Molecules: More Than One Kind of Atom [00:30]
  17. 22. ACTIVITY-MAKING MOLECULES <ul><li>H 2 O </li></ul><ul><li>C O 2 </li></ul><ul><li>C 2 H 4 </li></ul><ul><li>C Cl 4 </li></ul><ul><li>C 4 H 10 </li></ul><ul><li>C H 3 </li></ul><ul><li>C H 3 O H </li></ul><ul><li>H C O 2 H </li></ul>Blue- Nitrogen- N Yellow- Hydrogen- H Black- Carbon- C Green- Chlorine- Cl Purple- Iodine- I Flourine- F Red- Oxygen- O Orange- Bromine- Br
  18. 24. compound <ul><li>Pure substance made of 2 or more elements chemically combined in a set ratio </li></ul><ul><li>Represented by chemical formula- shows ratio of elements </li></ul>CO 2 H 2 O Compounds and their Proportions
  19. 25. mixture <ul><li>2 or more substances that are mixed together but not chemically combined </li></ul><ul><li>cereal </li></ul>
  20. 26. solution <ul><li>well mixed mixture </li></ul><ul><li>sea water, lemonade </li></ul>
  21. 27. heterogeneous mixture <ul><li>can see different parts </li></ul>
  22. 28. homogeneous mixture <ul><li>substances evenly mixed so you can’t see different parts </li></ul><ul><li>solution </li></ul>
  23. 29. Heterogeneous and Homogeneous Mixtures [01:16]
  24. 31. Activity- Separating a Mixture corn Chex wheat Chex Round pretzels Bread-sticks Bagel chips Window-pane pretzels
  25. 32. Classify each item as either an element (E) , a compound (C) , or a mixture (M) . You may also use your textbook and the periodic table to help you identify elements. <ul><li>water </li></ul><ul><li>hydrogen </li></ul><ul><li>soup </li></ul><ul><li>soil </li></ul><ul><li>diamond </li></ul><ul><li>sugar </li></ul><ul><li>sulfur </li></ul><ul><li>iron </li></ul><ul><li>brass </li></ul><ul><li>sausage </li></ul><ul><li>cement </li></ul><ul><li>oxygen </li></ul><ul><li>chop suey </li></ul><ul><li>air </li></ul><ul><li>iron sulfide </li></ul><ul><li>mercury </li></ul><ul><li>nitrogen </li></ul><ul><li>salt </li></ul><ul><li>bread </li></ul><ul><li>gold </li></ul><ul><li>aspirin </li></ul>
  26. 33. Classify each item as either an element (E) , a compound (C) , or a mixture (M) . You may also use your textbook and the periodic table to help you identify elements. <ul><li>water C </li></ul><ul><li>hydrogen E </li></ul><ul><li>soup M </li></ul><ul><li>soil M </li></ul><ul><li>diamond E </li></ul><ul><li>sugar M </li></ul><ul><li>sulfur E </li></ul><ul><li>iron E </li></ul><ul><li>brass C </li></ul><ul><li>sausage M </li></ul><ul><li>cement M </li></ul><ul><li>oxygen E </li></ul><ul><li>chop suey M </li></ul><ul><li>air M </li></ul><ul><li>iron sulfide C </li></ul><ul><li>mercury E </li></ul><ul><li>nitrogen E </li></ul><ul><li>salt C </li></ul><ul><li>bread M </li></ul><ul><li>gold E </li></ul><ul><li>aspirin C </li></ul>
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