I


 * **//__Identify__//**- to see or mention
 * [|Online definition]

__//**independent variable**//__- a manipulated factor in an experiment
 * [|Online definition]

__//**Indicator**//__//-// two or more atoms of elements joined that can change color and can be reversed depending on conditions(such as pH) [|pH indicators by Bitzi] __//**Inertia**//__- An object that tends to resist being moved or,also if the object is moving, it can resist change in speed or direction until a force from outside acts on the object.
 * [|Online definition]
 * [|Online definition]

//__**Interact-**__// to act upon one another.
 * [|Online definition]

[|Robot Baby With Blocks by Creatornat]

__**//Interpret//-**__to decipher the meaning of
 * [|Online definition]

__//**Investigation**//__- A thorough search for clues and solutions
 * [|Online definition]

__//**Involve**//__- To take part in
 * [|Online definition]

__//**Ion**//__- A particle that is charged when an atom loses or gains an eletron [|Online Definition] [|model of an ion by team nutty] [|Table Salt by parl]
 * [|Online definition]
 * **__//ionic bond//__**-the attraction of two oppositely charged atoms
 * [|Online Definition]

[|a salt is an ionic compound by Silly Dog]
 * __//**Ionic Compound-**//__ Compounds that have ionic bonds.
 * [|Online Definition]


 * __//**Isotope**//__- One type of atom that has the same amount of protons but a different number of neutrons.
 * [|Online Definition]