scientific method observe state the problem hypothesis experiment gather data analysis conclude...
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Independent Variable In an experiment, the variable that the experimenter plans to change.TRANSCRIPT
Scientific Method• Observe• State the
Problem• Hypothesis• Experiment• Gather Data
• Analysis• Conclude• Communicate• Predict• Theory• Law
InferTo deduce in a logical manor from evidence
Independent VariableIn an experiment, the
variable that the experimenter plans to
change.
Dependent VariableIn an experiment, the variable whose value
depends on the independent variable.
Pure ResearchA type of scientific
investigation that seeks to gain knowledge for the
sake of knowledge itself.
Applied ResearchA type of scientific investigation that is
undertaken to solve a specific problem
TechnologyThe practical use of scientific information
ModelA visual, verbal, or mathematical explanation of how things occur
ChemistryThe study of matter
and the changes that it undergoes.
Found in experiments• Control• Variables
▬Experimental Variables▬Unknown Variables
Review1.Matter2.Atom3.Atomic
Structure4.Nucleus5.Protons
6.Neutrons7.Electrons8.Electron
Cloud Theory
9.Electron Cloud
Review1.Element2.Atomic
Number3.Atomic
Symbol4.Element
Name
5.Atomic Mass6.Mass
Number7.Periods8.Family9.Group10.Organic
Matter
Review1.Phase
Changesa)Solidb)Liquidc)Gasd)Plasma
2.Ion3.Isotope
Periodic Table of the Elements
Nonmetals are found on the right
side of the Periodic Table.
Metals are found on the left side of the Periodic Table
1.Metalloids2.Alkali Metals3.Alkaline
Earth Metals4.Halogens
Review1.Nobel Gases2.Transition
Metals3.Rare Earth
Metals
4.Man Made Elements
5.Dimitri Mendeleev
6.Henry Moseley
Masses of Subatomic Particles
• Proton• Neutron• Electron
• 1.6726 X 10-27kg• 1.6749 X 10-27kg• 9.1094 X 10-31kg
Masses of Subatomic Particles
• Proton• Neutron• Electron
• 1.00728 amu• 1.00867 amu• 0.000549 amu
Charges of Subatomic Particles
• Proton
• Neutron• Electron
• 1.602 X 10−19 Coulomb
• 0 C• −1.602 X 10−19 C
Millikan's oil dropExperiment used to
determine the charge of an electron by suspending an oil drop between two metal
electrodes.
Thomson’s cathode ray
Proved the existence of a subatomic particle with a negative charge, named
electron
Le Châtelier’s PrincipleStates that if a stress is applied to a system at equilibrium, the system
shifts in the direction that relieves the stress.
Ernest RutherfordUsed the Gold Foil
Experiment to prove existence of protons and that atoms are made of
mostly empty space.