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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.
slide7
1.
  • Matter is anything that has mass and takes up space.
slide8
2.
  • Mass is measured in grams using a Triple Beam Balance.
slide9
3.
  • Milk Spoiling- C
  • Silver Tarnishing- C
  • Ice Melting- P
  • Evaporation- P
  • Leaf changes color- P
  • Water purified through distillation- P
slide10
4.
  • Density= Mass/ Volume
  • Mass Divided By Volume
  • 52g /73.5ml = 0.707= 0.71g/ml
slide11
5.
  • Concrete- M; Hetero.
  • Wood- M; Hetero.
  • Table Salt- P.S
  • Milk- M; Homo.
  • Sodium- P.S.
  • Pure Air- M;Homo.
slide12
5.
  • Blood- M; Hetero
  • Salad Dressing- M; Hetero
  • Soil- M; Hetero.
  • Paint- M; Hetero
  • Oxygen- P.S.
  • Nail Polish- M; Hetero
slide13
6.
  • Gases have an indefinite shape and an indefinite volume.
slide14
7.
  • Liquids have an indefinite shape and a definite volume.
slide15
8.
  • Solid particles stay in place.
  • Liquid particles move/slide past each other.
  • Gas particles spread throughout.
slide16
9.
  • Condensation is the change in state from a gas to a liquid.
slide17
10.
  • Evaporation is the change in state from a liquid to a gas.
slide18
11.
  • Gases are Non-Metals
slide19
12.
  • Air- M
  • Light- NM
  • Sugar- M
  • Water Vapor- M
slide20
13.
  • The rate of the reaction increases as time increases.