1/11/12             A/B DayLEQ: What is the difference between a physicaland chemical change and how can we tell whenthey ...
Let’s Review:If each of thesematerials isexposed to thesame amount ofheat, which onewill be theCOOLEST?
HOT Q: If 5 grams of gold melts at200° C, what temperature will cause50 grams of gold to melt?
HOT Q: Which pure substance iscomposed of more that oneelement?  a.Carbon  b.Gold  c.Water  d.Sodium
Let’s Review!            NONMETALSMETALS            METALLOIDS
Help a Scientist pick the right element:1.   A metal2.   A nonmetal3.   A metalloid4.   Something malleable5.   Something ...
FIND THAT ELEMENT!1. GROUP 1, PERIOD 1 =2. GROUP 6, PERIOD 7 =3. GROUP 2, PERIOD 5 =4. GROUP 9, PERIOD 4 =5. GROUP 17, PER...
EOG Question:How can a scientist, using the periodictable, find an element with properties similar toanother element?     ...
Chemical     MechanicalWeathering   Weathering
CHEMICAL WEATHERING:• Chemicals break down rock by  chemically changing the rock• Usually indicated by color  change!• Exa...
MECHANICAL WEATHERING:• Physical changes to rock(rocks break into smaller pieces)• Example: ice, salt, wind, and  water br...
Today’s LEQ: What is the difference between a physical and chemical change and how can we tell when they happen?By the end...
FOCUS VOCABULARY:87. Chemical Change88. Physical Change
ACTIVATOR: Draw this in your notes
Record 3-5 observations you   have about the paperHow does the paper lookdifferent?What changed about thepaper?What happen...
Record 3-5 observations you   have about the paperHow does the paper lookdifferent?What changed about thepaper?What happen...
Demo: Tearing Paper, Burning PaperHow are the twodemos different?
Changing SubstancesPhysical Change:   Chemical Change:Ex.                Ex.Evidence:          Evidence:1.                ...
Draw this in your notes:    Changing SubstancesPhysical Change:changes the physicaltraits of asubstance, NOT theidentity o...
Physical Change: Tearing paper      Paper
Draw this in your notes:    Changing SubstancesPhysical Change:       Chemical Change:changes the physical   substance is ...
Chemical Change: Burning paper PaperBurnt Paper is a  DIFFERENT SUBSTANCE!
BrainPop: Changing Properties
Changing SubstancesPhysical Change:   Chemical Change:Ex.                Ex.Evidence:          Evidence:1.                ...
Instructions:I give you: 8 different types of evidencethat happen during physical and chemicalchangesYou: use your brain t...
Physical               Chemical             -Changes color             -Melting, freezing, or boilingEVIDENCE             ...
Physical Change:        Chemical Change:Evidence:                Evidence:1. Melting, freezing, or 1. Changes colorboiling...
What evidence can we use to tell this       is a physical change?         Paper
What evidence can we use to tell   this is a chemical change?  PaperBurnt Paper is a  DIFFERENT SUBSTANCE!
Physical Change: Ice melting
Chemical Change: Making Water       +  Two       One           WaterHydrogen   Oxygen Atoms      Atom
Chemical   orPhysical?
Melting Ice
Burning Wood
Chopping Wood
Digesting an apple
Breaking Glass
Melting Iron
Bicycle rusting
Melting Ice Cream on a hot day
Cooking a steak
Mixing Peas and Carrots
Rotting Banana
Draw this in your notes:
SORT THESE!!   A nail   rusting
HOT Q: How do physical and chemical changes relate to thedifferent ways that the surface of the earth changes over time??
Key Points:1. A _________ changes the physical   characteristics of a substance.2. A __________ changes something into a n...
Summarizer:1. What is the difference between a chemical   change and physical change?2. Is melting copper an example of a ...
Upcoming SlideShare
Loading in...5
×

1/11/12

163

Published on

Published in: Technology, Business
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
163
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
1
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

1/11/12

  1. 1. 1/11/12 A/B DayLEQ: What is the difference between a physicaland chemical change and how can we tell whenthey happen?1. What is the difference between a mixture and asolution?2. In a glass of chocolate milk, what is the solvent andwhat is the solute?3. What does solubility measure?4. A scientist needs to use a material that will not getvery hot. Should the scientist use something with aHIGH specific heat or a low specific heat?5. EXPLAIN your answer to #4!
  2. 2. Let’s Review:If each of thesematerials isexposed to thesame amount ofheat, which onewill be theCOOLEST?
  3. 3. HOT Q: If 5 grams of gold melts at200° C, what temperature will cause50 grams of gold to melt?
  4. 4. HOT Q: Which pure substance iscomposed of more that oneelement? a.Carbon b.Gold c.Water d.Sodium
  5. 5. Let’s Review! NONMETALSMETALS METALLOIDS
  6. 6. Help a Scientist pick the right element:1. A metal2. A nonmetal3. A metalloid4. Something malleable5. Something ductile6. Something that is magnetic7. Something that will conduct heat8. Something that will block heat9. Something that is a semiconductor
  7. 7. FIND THAT ELEMENT!1. GROUP 1, PERIOD 1 =2. GROUP 6, PERIOD 7 =3. GROUP 2, PERIOD 5 =4. GROUP 9, PERIOD 4 =5. GROUP 17, PERIOD 3 =6. GROUP 11, PERIOD 4 =
  8. 8. EOG Question:How can a scientist, using the periodictable, find an element with properties similar toanother element? a) by comparing density b) by finding its periodic group c) by comparing malleability d) by comparing atomic weight
  9. 9. Chemical MechanicalWeathering Weathering
  10. 10. CHEMICAL WEATHERING:• Chemicals break down rock by chemically changing the rock• Usually indicated by color change!• Example: Acid Rain, rust
  11. 11. MECHANICAL WEATHERING:• Physical changes to rock(rocks break into smaller pieces)• Example: ice, salt, wind, and water break down rocks
  12. 12. Today’s LEQ: What is the difference between a physical and chemical change and how can we tell when they happen?By the end of today, you should be able to…1. Describe the difference between an physical and chemical change.2. Use observable evidence to decide if a change is chemical or physical
  13. 13. FOCUS VOCABULARY:87. Chemical Change88. Physical Change
  14. 14. ACTIVATOR: Draw this in your notes
  15. 15. Record 3-5 observations you have about the paperHow does the paper lookdifferent?What changed about thepaper?What happened to thepaper?
  16. 16. Record 3-5 observations you have about the paperHow does the paper lookdifferent?What changed about thepaper?What happened to thepaper?
  17. 17. Demo: Tearing Paper, Burning PaperHow are the twodemos different?
  18. 18. Changing SubstancesPhysical Change: Chemical Change:Ex. Ex.Evidence: Evidence:1. 1.2. 2.3. 3.4. 4.
  19. 19. Draw this in your notes: Changing SubstancesPhysical Change:changes the physicaltraits of asubstance, NOT theidentity of thesubstance TEARING PAPER!
  20. 20. Physical Change: Tearing paper Paper
  21. 21. Draw this in your notes: Changing SubstancesPhysical Change: Chemical Change:changes the physical substance is changedtraits of a into a new substancesubstance, NOT the (changes the identityidentity of the of something)substance Ex. Burning Paper!
  22. 22. Chemical Change: Burning paper PaperBurnt Paper is a DIFFERENT SUBSTANCE!
  23. 23. BrainPop: Changing Properties
  24. 24. Changing SubstancesPhysical Change: Chemical Change:Ex. Ex.Evidence: Evidence:1. 1.2. 2.3. 3.4. 4.
  25. 25. Instructions:I give you: 8 different types of evidencethat happen during physical and chemicalchangesYou: use your brain to decide which ofthe things is evidence of physical changeand which of the things is evidence ofchemical change
  26. 26. Physical Chemical -Changes color -Melting, freezing, or boilingEVIDENCE -Burst of heat -Change in mass or volume -Smoke forms -Change in shape -Usually reversible -Usually irreversible
  27. 27. Physical Change: Chemical Change:Evidence: Evidence:1. Melting, freezing, or 1. Changes colorboiling 2. Burst of heat2. Change in mass orvolume 3. Smoke forms3. Change in shape4. Usually reversible 4. Usually irreversible
  28. 28. What evidence can we use to tell this is a physical change? Paper
  29. 29. What evidence can we use to tell this is a chemical change? PaperBurnt Paper is a DIFFERENT SUBSTANCE!
  30. 30. Physical Change: Ice melting
  31. 31. Chemical Change: Making Water + Two One WaterHydrogen Oxygen Atoms Atom
  32. 32. Chemical orPhysical?
  33. 33. Melting Ice
  34. 34. Burning Wood
  35. 35. Chopping Wood
  36. 36. Digesting an apple
  37. 37. Breaking Glass
  38. 38. Melting Iron
  39. 39. Bicycle rusting
  40. 40. Melting Ice Cream on a hot day
  41. 41. Cooking a steak
  42. 42. Mixing Peas and Carrots
  43. 43. Rotting Banana
  44. 44. Draw this in your notes:
  45. 45. SORT THESE!! A nail rusting
  46. 46. HOT Q: How do physical and chemical changes relate to thedifferent ways that the surface of the earth changes over time??
  47. 47. Key Points:1. A _________ changes the physical characteristics of a substance.2. A __________ changes something into a new substance.3. Changing color is evidence of a ___________.4. Changing phases or states of matter is evidence of a __________________.
  48. 48. Summarizer:1. What is the difference between a chemical change and physical change?2. Is melting copper an example of a physical or chemical change?3. How can you tell the answer to #2?4. Is a rusting nail an example of a physical or chemical change?5. How can you tell the answer to #4?
  1. A particular slide catching your eye?

    Clipping is a handy way to collect important slides you want to go back to later.

×