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Nine Week Study Guide. Definitions. Hypothesis- An educated guess to a scientific problem. I.V.- The variable that changes in an experiment. D.V.- The variable that is being tested or measured in an experiment. Definitions.

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Definitions
Definitions

  • Hypothesis- An educated guess to a scientific problem.

  • I.V.- The variable that changes in an experiment.

  • D.V.- The variable that is being tested or measured in an experiment.


Definitions1
Definitions

  • Control Group- The group in an experiment that is treated normally. EX: Giving a plant water versus giving a plant Dr. Pepper.

  • Experimental group- The group in an experiment that is being experimented on.

    Ex: Giving a plant Dr. Pepper versus giving it water.


Definitions2
Definitions

  • Constant- Things in an experiment that remains the same between the control group and experimental group.

  • Control- Factors in an experiment that the Independent Variable compares to.


Scenario 1
Scenario 1

  • Title: Answers can vary; The effects of Starbucks Coffee on Cancer Tumors.

  • Hypothesis: Starbucks Coffee does or does not reduce the size of cancer tumors.

  • I.V.- Starbucks Coffee

  • D.V.- Size of the Tumor

  • Constants: Amount of days(6 Months) , X-ray


Scenario 2
Scenario 2

  • Title: The effects of Breakfast on Thinking Ability

  • Hypothesis: Breakfast does and does not play an important role in one’s ability to think.

  • I.V.- Not having breakfast

  • D.V.- How well you are able to process information (thinking ability).

  • Constants- SAT-10, Same Instructor.


1.

  • Matter is anything that has mass and takes up space.


2.

  • Mass is measured in grams using a Triple Beam Balance.


3.

  • Milk Spoiling- C

  • Silver Tarnishing- C

  • Ice Melting- P

  • Evaporation- P

  • Leaf changes color- P

  • Water purified through distillation- P


4.

  • Density= Mass/ Volume

  • Mass Divided By Volume

  • 52g /73.5ml = 0.707= 0.71g/ml


5.

  • Concrete- M; Hetero.

  • Wood- M; Hetero.

  • Table Salt- P.S

  • Milk- M; Homo.

  • Sodium- P.S.

  • Pure Air- M;Homo.


5.

  • Blood- M; Hetero

  • Salad Dressing- M; Hetero

  • Soil- M; Hetero.

  • Paint- M; Hetero

  • Oxygen- P.S.

  • Nail Polish- M; Hetero


6.

  • Gases have an indefinite shape and an indefinite volume.


7.

  • Liquids have an indefinite shape and a definite volume.


8.

  • Solid particles stay in place.

  • Liquid particles move/slide past each other.

  • Gas particles spread throughout.


9.

  • Condensation is the change in state from a gas to a liquid.


10.

  • Evaporation is the change in state from a liquid to a gas.


11.

  • Gases are Non-Metals


12.

  • Air- M

  • Light- NM

  • Sugar- M

  • Water Vapor- M


13.

  • The rate of the reaction increases as time increases.


14.

  • B


15.

  • A


16.

  • A


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