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Science Vocab

Atom small particles with the properties of the element
Atomic Mass mass of an atom
Atomic Number protons in an atom
Nucleus the center of an atom
Proton postitive particle in the nucleus
Neutron neutral particle in the nucleus
Electron negative particle outside the nucleus
Valance Electron electrons in teh outermost level of an atom
Law of Conservation of Matter atoms can be neither created nor destroyed
Element Molecule the simplest molecule; same atoms
Compound Molecule more than 2 different kinds of atoms
Products the reaction of the atoms
Coefficient the number before the element molecule
Subscript number of atoms in an element
Balanced Force the forces on an object are balanced
Direction the way the object is facing
Force a push or a pull
Newtons First Law any object in motion will stay in motion and any object in rest will stay in rest unless acted upon by an unbalanced force
Newtons Second Law the acceleration of an object depends upon the size of the force and the mass of the object
Newtons Third Law For every action there is an equal or opposite reaction
Speed the time the object takes divided by the distance it went
Unbalanced Force the forces on an object are unbalanced
Velocity the speed and acceleration
Meteor once meteroids hit the atmosphere
Meteorite the meteors that reach the ground
Meteoroid the dust and rock in space
Elliptical Galaxy circle shaped and lots of large/bright stars
Irregular Galaxy No specific shape
Spiral Galaxy whirlpool shaped
Created by: R0505489