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53 Cards in this Set

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Celestial
objects that refer to the sky... (to keep track of time from the sun)
the moon
is the reflection of the sun's light toward our direction

light minutes away
Stars
light years away
have own energy sorce
Electromagnetic Waves
waves of radiation that are characterized by electric and magnetic fields
Work
the result in any change in energy

joules or calories
Kinetic Energy
energy of motion

KE= 1/2MV(square)
Potential Energy
PE= mgh
Law of Conservation Energy
the theory that energy is never lost but it is only transferred back and forth between KE and PE
Matter
anything that takes up space
Mass
the quantity of matter an object has
Protons
positively charged subatomic particles found in the nucleus of an atom
Elements
substances that cannot be broken into simpler types of matter
Atom
smallest part of an element
Atomic Number
the number of protons in the nucleus of an atom
Neutrons
neutral subatomic particles found in the nucleus of an atom
Neutrons
neutral subatomic particles found in the nucleus of an atom

do not contribute to charge
Electrons
negatively charged subatomic particles found in various energy levels around the nucleus
Chemical Reaction
is when there is an imbalance in the charge of an atom
Ion
is when there is an imbalance in the charge of an atom
Mass Number
total number of protons and neutrons found within the nucleus of an atom
Atomic Mass
the average mass of all of the known isotopes of an element
Isotopes
atoms with the same number of protons but different numbers of neutrons
Catalysts
control the ate of chemical reactions
Atomic Radii
as filled energy shells increases the atomic radii increases
Ionization Energy
the energy required to completely remove and electron from an atom
Period on Table of Elements
longitude
Group on Table of Elements
horizontal
Enzymes
act as catalysts. Found in proteins.

highly selective
Globular proteins
proteins that are water soluble
Red Litmus Paper indicates?
acidic
Metabolic Pathways
chemical reactions with a cell (depends on needs of cell)
Blue Litmus paper indicates?
basic solution
Covalent
shares electrons
Ionic
attractions
Organic Chemistry
study of hydrocarbon structure
Metalloids
posses a mixture of metallic and nonmetallic properties
Metallic Ion
cation (positive ion)
Nonmetallic ion
anion with negative ion
Reduction
the acceptance of an electron (negative)
Oxidation
electron donation to produce a more positive ion
Oxidation Reduction Reaction
combustion, photosynthesis, metabolism
Glucose
C6 H12 O 6
Polar Molecule
posses both negative and positive atomic structure
Electrolysis
the use of electric current to drive the breakdown of a molecule
Kelvin
add 273 to C
Anabolic
larger molecules
Catabolic
smaller molecules
Solid
(volume and shape)
fixed shape and volume
Liquid
(volume and shape)
fixed volume and changing shape
Gas
(volume and shape)
changing volume and changing shape
Latent Heat
the amount of heat needed to transform between solid, liquid and gas
Vaporization
liquid to a gas

Heat of vaporization= M x L
Evaporation
makes rain clouds....