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Conductor
A material through which electric current can pass. In general, metals are good conductors. Copper or aluminum is normally used to conduct electricity in commercial and household systems

Insulator
A material or an object that does not easily allow heat, electricity, light, or sound to pass through it. Air, cloth and rubber are good electrical insulators; feathers and wool make good thermal insulators

Current
Electric current. the time rate of flow of electric charge, in the direction that a positive moving charge would take and having magnitude equal to the quantity of charge per unit time: measured in amperes

Experiement
A test under controlled conditions that is made to demonstrate a known truth, to examine the validity of a hypothesis, or to determine the efficacy of something previously untried. The process of conducting such a test; experimentation

Displacement

Displacement is a vector quantity that refers to "how far out of place an object is"; it is the object's overall change in position

Solution
A simple solution is basically two substances that are evenly mixed together. One of them is called the solute and the other is the solvent

Evarporation
Evaporation is defined as the process of a liquid changing into a gas

Transpiration
Transpiration is the process by which moisture is carried through plants from roots to small pores on the underside of leaves, where it changes to vapor and is released to the atmosphere

Floatation
An act or state of floating. the launching of a commercial venture, bond issue, loan, etc. Metallurgy. a process for separating the different minerals in a mass of powdered ore based on their tendency to sink in, or float on, a given liquid. the science of floating bodies.

Hypothesis
In science, a hypothesis is an idea or explanation that you then test through study and experimentation. Outside science, a theory or guess can also be called a hypothesis. A hypothesis is something more than a wild guess but less than a well-established theory.