Do We Have Chemistry?
The simplest form of chemical matter and contains only one type of atom.
What is element?
What is pH?
What is Electricity?
This is a constant, even-flowing current that travels in one direction only and is produced by chemical means, like battery powered tools and items(cell phones, flashlights)
What is a direct current?
The unit that measures the pressure or force that pushes electric current forward through a conductor.
What is a volt? (voltage)
This is a change in the form or physical properties of a substance.
What is a physical change?
A pH of below 7 indicates this type of solution.
What is acidic?
This is any material that conducts electricity. Examples would be metal, copper, ordinary water.
What is a conductor?
This is a rapid and interrupted current, flowing first in one direction and then in the opposite direction. (Corded hair dryers and tools, table lamps, anything with a wall plug)
What is an alternating current?
These prevent excessive current from passing through a circuit. They are designed to blow out or melt when the wire becomes too hot from overloading the circuit with too much current.
What is a fuse?
This is a stable, uniform mixture of two or more substances.
What is a solution?
This number on the pH scale indicates a neutral pH in a substance.
What is 7?
These are also known as insulators, and are materials that do not transmit electricity. (Examples: rubber, silk, wood, glass)
What are nonconductors?
What is a watt?
These switches automatically interrupt or shut off an electrical circuit at the first indication of an overload.
What is a circuit breaker?
These are substances that allow oil and water to mix, or emulsify.
What are surfactants?
What is an electrical current?
This unit measure the strength of an electric current.
What is an ampere? (amp)
This completes an electrical circuit and carries the current safely away.
What is grounding?
The tail of a surfactant molecule is this, and has an affinity (attraction to) fat and oils.
What is lipophilic?
These are also known as bases, and they owe their chemical reactivity to the hydroxide ion.
What are alkalis?
The path that negative and positive electrical currents take from the generating source through the conductors and back to the generating source.
What is a complete electrical circuit?
The unit that measures the resistance of an electric current.
What is an ohm?
These are designed to protect from electrical shock by interrupting a household circuit when there is a leak in the circuit.
What is a ground fault interrupter?