Recent Changes

Friday, March 9

Thursday, January 25

  1. page Interesting Websites edited ... Hunting the Elements - Nova Where do nature's building blocks, called the elements, come from…
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    Hunting the Elements - Nova
    Where do nature's building blocks, called the elements, come from? They're the hidden ingredients of everything in our world, from the carbon in our bodies to the metals in our smartphones. To unlock their secrets, David Pogue, technology columnist and lively host of NOVA's popular "Making Stuff" series, spins viewers through the world of weird, extreme chemistry: the strongest acids, the deadliest poisons, the universe's most abundant elements, and the rarest of the rare—substances cooked up in atom smashers that flicker into existence for only fractions of a second.
    Hunting the Elements Worksheet
    Download and print this document.

    (view changes)
    9:12 am
  2. page Interesting Websites edited ... This is a guide to career information about hundreds of occupations! = = World of Chemis…
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    This is a guide to career information about hundreds of occupations!
    =
    =
    World of Chemistry
    A video instructional series for college and high school classrooms and adult learners; 26 half-hour video programs.
    Episode 1 - The World of Chemistry
    Episode 2 - Color
    Hunting the Elements - Nova
    Where do nature's building blocks, called the elements, come from? They're the hidden ingredients of everything in our world, from the carbon in our bodies to the metals in our smartphones. To unlock their secrets, David Pogue, technology columnist and lively host of NOVA's popular "Making Stuff" series, spins viewers through the world of weird, extreme chemistry: the strongest acids, the deadliest poisons, the universe's most abundant elements, and the rarest of the rare—substances cooked up in atom smashers that flicker into existence for only fractions of a second.

    (view changes)
    9:09 am

Tuesday, January 16

  1. page Chemistry Practice edited ... Moonlander: The Electromagnetic Spectrum Orbital Energy Diagram and Atomic Electron Configura…
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    Moonlander: The Electromagnetic Spectrum
    Orbital Energy Diagram and Atomic Electron Configuration Tool
    Interactive Orbital Energy Diagram and Atomic Electron Configuration
    Atomic Electron Configurations
    Atomic Structure
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    5:52 am

Friday, December 8

  1. page The Bunsen Burner edited ... Place the beaker on the ring stand with the wire gauze under it. Record the temperature of the…
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    Place the beaker on the ring stand with the wire gauze under it. Record the temperature of the water in the beaker. This is the temperature at time equals ZERO reading. Record it in your data table.
    WITHOUT PUTTING THE BUNSEN BURNER UNDER YOUR BEAKER, LIGHT IT AND ADJUST THE FLAME TO BE APPROXIMATELY 2 INCHES HIGH.
    ...
    Make sure youryou record the
    The thermometer should be in the middle of the beaker, not resting on the bottom, when you take the temperature!
    When you are done with the first 5-minute trial, move the burner out of the way, but DO NOT TURN IT OFF!
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    5:00 am

Thursday, September 14

  1. page The Scientific Method edited ... 1. Light the candle. CAUTION: Long hair or loose clothing can swing into the candle flame. Inv…
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    1. Light the candle. CAUTION: Long hair or loose clothing can swing into the candle flame. Invert a large beaker (400 or 600 mL) over the burning candle. Record the time in seconds required to extinguish the flame.
    {Scan 1.jpeg} 2. Relight the candle and repeat Step 1 using the other beaker (you may have to borrow from another group). Record the time in seconds required to extinguish the flame.
    3. Obtain a piece of glass tubing about 8 cm long. Holding the tubing with a test tube holder so that one end of the tubing in within the center part of the flame. Place the end of the glass tubing into the dark part of the flame and hold a lighted match to the other end of the tubing. Record your observations.
    {Scan copy.jpg} 4.
    Wind a
    {Scan.jpeg}
    Part C – Determination of Products Formed as a Candle Burns
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    9:46 am

Thursday, September 7

  1. page Lab Safety Webquest edited ... When you are finished answering all the questions, be sure to have shared your document with m…
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    When you are finished answering all the questions, be sure to have shared your document with me at HSTChemistry@gmail.com by the DEADLINE date & time. Grading guidelines for this part of the project can be found on this RUBRIC.
    Good Luck!
    DEADLINE: Friday 9/18/20159/15/2017 by 11:00
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    7:55 am

Thursday, August 31

  1. page Grading Policy edited ... 1. Summative Assignments TESTS: Multiple Choice, True/False, Matching, Essay, etc. HOMEWORK…
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    1. Summative Assignments
    TESTS: Multiple Choice, True/False, Matching, Essay, etc.
    HOMEWORK: Several online assignments will be submitted via the Internet each marking period.
    LAB EXPERIENCE: Preparation, Safety, Following procedures, Observations, Results, Drawing conclusions.
    Summative assignments constitute 60% of the marking period grade.
    2. Formative Assignments
    QUIZZES: ANNOUNCED, but Random. A quiz will be on the previous day's class work and/or homework.
    HOMEWORK: Several online assignments will be submitted via the Internet each marking period.
    CLASSWORK: To be determined.
    Summative assignments constitute 30% of the marking period grade.
    (view changes)
    4:06 am

Wednesday, August 30

  1. page BTSD Grade Policy edited Beginning in September 2017, the Grading Policy for Harry S Truman High School has changed. Bel…

    Beginning in September 2017, the Grading Policy for Harry S Truman High School has changed.
    Below is a synopsis of that change.
    x-Each LETTER GRADE has a specific value.1. Letter grades will no longer indicate student achievement.
    2. Marking period and final exam grades will now be numerical.
    3. Your year-end grade will be an average of the 4 marking periods and the final.
    4. Averages > 60% (PASS); < 60% (FAIL).

    (view changes)
    6:58 am

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