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Science Vocab
Question | Answer |
---|---|
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 |