Welcome to

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Welcome to
Jeopardy!
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Todays exciting topic.
Introduction to Chemistry
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PowerPoint Jeopardy
Final Jeopardy!
Introduction to Biology
Lab 101 Magical Mixures Matter and Energy Properties of Matter Anything Goes
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I am boiling pasta, one pot has salt and the
other doesnt. What is the independent variable?

• A. Temperature of water
• B. Salt
• C. Pot size
• D. Amount of heat given to burner

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B. Salt!!
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• When graphing data, the independent variable and
  dependent variable will each always be placed on
  which axis
• Independent on X and Dependent on Y.
• Independent on Y and Dependent on X.

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A. Independent on X and Dependent on Y!
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• If the water temperature is too high, then the
  bacteria will die. This is an example of
• Hypothesis
• Conclusion
• Control
• Dependent Variable

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A. Hypothesis!!
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1. In an experiment, the _________ variable is
   deliberately changed during the experiment and is
   what we are testing.
2. The ____________ variable is observed during the
   experiment and is the data we measure throughout
   the experiment.

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1. Independent!!
2. Dependent!!

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During an experiment, a researcher takes five
same-size beakers containing 50 mL, 100 mL, 150
mL, 200 mL and 250 mL water. She cools all of the
beakers in the same ice water bath and records
the time it took the water in each beaker to
reach the freezing point of water What is the
independent variable? What is the dependent
variable? What is one constant?
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Independent volume of beaker! Dependent time
to reach freezing point! Constant
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• A heterogeneous mixture is best described as?
• A blend of substances that cannot be physically
  separated
• A blend of substances that does not have a
  uniform composition
• A blend of substances that has a uniform
  composition
• Anything mixed with water

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B. A blend of substances that does not have a
uniform composition!
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• A homogenous mixture is best described as?
• A blend of substances that cannot be physically
  separated
• A blend of substances that displays the Tyndall
  effect
• A blend of substances that has a uniform
  composition
• Anything mixed with water

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C. A blend of substances that has a uniform
composition!
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• Which of the following is pure substance?
• Water from a well
• Gold bars in Fort Knox
• Air at the top of Mt. Everest
• Sand in Fiji

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B. Gold bars in Fort Knox!
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• A method that uses the difference in boiling
  points to separate a mixture into its pure
  substance components is
• Distillation
• Filtration
• Chromatography
• Boilitgoodlation

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A Distillation!!
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• Heterogeneous Mixtures can be further classified
  as
• Colloids and Solutions
• Solutions and Suspensions
• Colloids and Suspensions
• Colloids and Solutions

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C. Colloids and Suspensions!!
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• Matter is classified as anything having
• Mass and Energy
• Volume and Density
• Length and Temperature
• Mass and Volume

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D. Mass and Volume!!
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• A substance that cannot be physically or
  chemically broken down any further is a/an
• molecule
• element
• compound
• cell

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B. element!!!
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• Which of the above can be classified as molecules
  but not compounds?
• H2O and O2
• O2 and H2
• H2 and H2O
• O and O2

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B. O2 and H2!!
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A process that releases energy into its
surroundings is described as __________, while a
process that absorbs energy from its surroundings
is described as ___________.
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Exothermic and Endothermic!!!!
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• Rank the phases of matter in terms of kinetic
  energy from lowest average kinetic energy to
  greatest average kinetic energy
• GasltLiquidltSolidltPlasma
• PlasmaltGasltLiquidltSolid
• SolidltLiquidltGasltPlasma
• All phases have equal kinetic energy

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C.SolidltLiquidltGasltPlasma !!!
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• Which of the following displays a chemical
  property?
• Iron will form rust in the presence of Oxygen and
  Water
• Water boils at 100 degrees C
• Iron can be made to be magnetic
• Glucose will dissolve in water

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A. Iron will form rust in the presence of Oxygen
and Water !!
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• Which of the following displays a physical
  property?
• Titanium melts at a higher temperature than Ice
• Gasoline will burn in air
• Eggs produce a strong odor when hardboiled
• Gas is released when vinegar is added to baking
  soda

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A. Titanium melts at a higher temperature than
ice !!
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• Which of the following could be described as a
  vapor?
• steam
• Oxygen gas
• Carbon Dioxide
• Chlorine gas

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A. Steam!!
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• In which of the following situations has a
  chemical change likely taken place? (choose all
  that apply)
• Smoke, light, and heat are produced when wood is
  burned
• Spilled alcohol evaporates off of the table at
  room temperature
• Bubbles form when Iron is added to Hydrochloric
  Acid
• Water turns red when Cool Aid is added

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A and C!!
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• In which of the following situations has a
  physical change taken place? (choose all that
  apply)
• Carbon exposed to high heat and pressure can
  form diamond
• Blood will turn bright red in the presence of
  Oxygen
• Tin can be pounded in thin sheets
• Platinum is molded into a ring

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A, C, and D!!
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• The reaction below demonstrates which scientific
  law? 16 g of CH4 burns with 64 g of Oxygen gas
  gives 80 g of products.
• The Law of Multiple Proportions
• The Law of Independent Assortment
• The Law of Laws
• The Law of Conservation of Mass

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D. The Law of Conservation of Mass !!
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• Which of the following are extensive properties?
  (choose all that apply)
• Mass
• Density
• Length
• Color

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A, C !!
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• Which of the following are intensive properties?
  (choose all that apply)
• Boiling Point
• Hardness
• Conductivity
• Luster (Shininess)

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A, B, C, and D!!
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• Which of the following molecular diagrams shows
  the liquid phase?
• A.
• B.
• C.

A B C
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B!!
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• A controlled experiment allows the scientist to
  isolate and test
• A conclusion
• Several variables
• A mass of information
• A single variable

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D. A Single Variable!!
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• FINAL JEOPARDY!!
• Write on sheet of paper how much your group
  gambles
• Put names of everyone in group and group !
• Fold and HAND IN!!
• Write answer to final question on separate sheet
  of paper with group on it

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Final Jeopardy Question Propose a way to
separate and collect the components of a mixture
of Iron Filings, Sand, Salt, and Olive Oil.
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