DUE TUESDAY
CH10: read the chapter, highlight any chemical terms and answer the following questions
1) Describe at least five contributions or discoveries of Robert Boyle.
2) What conclusion did Boyle discover about air?
3) What is phlogiston and its relationship to metals? What did Lavoisier demonstrate by oxidizing metals?
4) Explain the difference between oxygen, hydrogen and carbon dioxide gas. What experiment did Sachs perform and how did he capture these gases?
CH11: read the chapter, highlight any chemical terms and answer the following questions
1) Describe Davy's experiment with friction and nitric acid. How did Davy discover incandescence?
2) Describe Cavendish's experiments.
3) What procedure did Davy use to discover alkali and alkaline earth metals?
4) Compare the reactivity of metals
5) Describe the properties of batteries.
6) What are the properties of catalysts?
7) BONUS: What other talent did Davy had besides scientist and what made is lamp safe?
CH12: read the chapter, highlight any chemical terms and answer the following questions
1) Define emulsion. What chemicals are used to create an emulsion and develop a photograph.
2) Describe how early color photographs were produced.
3) What is the relationship between photographs and migraines?
4) Who is H.G. Wells and why was he one of Sachs' favorite authors?
CH13: read the chapter, highlight any chemical terms and answer the following
1) What are solutions, alloys and amalgams?
2) How was Sachs able to imagine the small-of a small particle? How do you imagine it?
3) How did Daltons revise the understanding of the atom?
3) Why was Avogadro's suggestion of diatomic molecules ignored?
4) Explain Cannizaro's conclusion of a person learning a new science.
CH14: read the chapter, highlight any chemical terms and answer the following
1) What are the necessary components of a battery?
2) How can fruits and vegetables be used as batteries?
3) Why is removing air from a light bulb necessary?
4) Explain "light is an electromagnetic disturbance propagated through a field according to electromagnetic laws.
Thursday, February 12, 2009
Pencils & Pencil Lead Formal Writing assignment
This assignment is DUE TUESDAY.
Formal writing assignments must be typed unless otherwise noted in the assignment. You must use standard formatting: 1 inch margins, 12 pt. font, Arial or Times New Roman style font. You may use double spacing between questions but should use single line spacing within the response to each question. You need not rewrite the question but should include a reference from the question in your reply. For example for question 2 below, you may start your response, “We call it pencil lead because…” Your responses must be in complete sentences using proper grammar.
1) Provide a half page summary of the article, “What’s That Stuff? Pencils & Pencil Lead?”
2) Provide at least one unanswered question that you encountered when reading about pencils and pencil lead?
3) What are the three different types of markings that may be found stamped on pencils and what do they mean?
4) Why do we say pencil “lead” if there is no lead in it? What is the chemical symbol for lead?
5) Graphite is an allotrope (molecular configuration) of what element? Define allotrope and provide the name and uses of two other examples of allotropes of this element.
Formal writing assignments must be typed unless otherwise noted in the assignment. You must use standard formatting: 1 inch margins, 12 pt. font, Arial or Times New Roman style font. You may use double spacing between questions but should use single line spacing within the response to each question. You need not rewrite the question but should include a reference from the question in your reply. For example for question 2 below, you may start your response, “We call it pencil lead because…” Your responses must be in complete sentences using proper grammar.
1) Provide a half page summary of the article, “What’s That Stuff? Pencils & Pencil Lead?”
2) Provide at least one unanswered question that you encountered when reading about pencils and pencil lead?
3) What are the three different types of markings that may be found stamped on pencils and what do they mean?
4) Why do we say pencil “lead” if there is no lead in it? What is the chemical symbol for lead?
5) Graphite is an allotrope (molecular configuration) of what element? Define allotrope and provide the name and uses of two other examples of allotropes of this element.
Uncle Tungsten: CH8-CH9Q-Due Friday!
CH8: read the chapter, highlight the chemical terms and answer the following:
1) Which chemicals could explode by touching them?
2) Describe the colors of at least three transition metals discussed in the chapter.
3) What chemical reacts with liquid ammonia?
4) Which combination of chemicals liberates a tremendous amount of heat?
5) What odors are produced by esters? What are esters normally associated with and how are they produced?
6) Which chemicals produce stenches (bad smells)?
7) Describe a prank performed by Sachs.
CH9: read the chapter, highlight the chemical terms and answer the following:
1) Describe some the traits of Sachs' father.
2) Describe the personality of Auntie Lim.
3) Who was Uncle Bennie and what happened to him.
4) How do you think these people impacted Sachs' life?
1) Which chemicals could explode by touching them?
2) Describe the colors of at least three transition metals discussed in the chapter.
3) What chemical reacts with liquid ammonia?
4) Which combination of chemicals liberates a tremendous amount of heat?
5) What odors are produced by esters? What are esters normally associated with and how are they produced?
6) Which chemicals produce stenches (bad smells)?
7) Describe a prank performed by Sachs.
CH9: read the chapter, highlight the chemical terms and answer the following:
1) Describe some the traits of Sachs' father.
2) Describe the personality of Auntie Lim.
3) Who was Uncle Bennie and what happened to him.
4) How do you think these people impacted Sachs' life?
Wednesday, February 11, 2009
Uncle Tungsten: CH6-CH7Q
CH6: Read the chapter, highlight any chemical terms and answer the following questions
1) Describe at least two of Sachs' escapades in his cub scouts.
2) Define what a physical property is (this should be in your notes from the beginning of the year).
3) Describe the physical properties of the minerals that Sachs presents in this chapter and include an explanation of how they got their names.
CH7: Read the chapter, highlight any chemical terms and answer the following questions
1)Describe the various ways in which crystals are formed.
2) What does Sachs mean by "I would live the history of chemistry in myself."?
3)Differentiate between the terms acid, base and salt.
4)What type of collection of closest to Sachs' heart and why?
5) Why did Sachs experiment with sodium and "chlorinestimulate?"
1) Describe at least two of Sachs' escapades in his cub scouts.
2) Define what a physical property is (this should be in your notes from the beginning of the year).
3) Describe the physical properties of the minerals that Sachs presents in this chapter and include an explanation of how they got their names.
CH7: Read the chapter, highlight any chemical terms and answer the following questions
1)Describe the various ways in which crystals are formed.
2) What does Sachs mean by "I would live the history of chemistry in myself."?
3)Differentiate between the terms acid, base and salt.
4)What type of collection of closest to Sachs' heart and why?
5) Why did Sachs experiment with sodium and "chlorinestimulate?"
Monday, February 9, 2009
Uncle Tungsten: CH4-CH5Q
CH4: Read the chapter, highlight any chemical terms and answer the following:
1) What is the difference between metals found in nuggets and those found in ores?
2) What are some of the properties of aluminum? What is the difference between alumina and aluminum?
3) What are some of the characteristics of Tungsten?
4) What does it mean that a metal exists as an oxide? What does it mean that a metal is reduced?
5) Describe the thermite process.
CH5: Read the chapter, highlight any chemical terms and answer the following:
1) Compare the advantages and disadvantages of tungsten, tantalum and osmium filaments?
2) The first bright light was created using what chemical process?
3) Who was Auer? Who was Edison? Describe the "lighting battle" between the two.
What was the contribution of Irving Langmuir?
1) What is the difference between metals found in nuggets and those found in ores?
2) What are some of the properties of aluminum? What is the difference between alumina and aluminum?
3) What are some of the characteristics of Tungsten?
4) What does it mean that a metal exists as an oxide? What does it mean that a metal is reduced?
5) Describe the thermite process.
CH5: Read the chapter, highlight any chemical terms and answer the following:
1) Compare the advantages and disadvantages of tungsten, tantalum and osmium filaments?
2) The first bright light was created using what chemical process?
3) Who was Auer? Who was Edison? Describe the "lighting battle" between the two.
What was the contribution of Irving Langmuir?
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