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All matter is made up of


Atoms are made up of

Protons, electrons, and neutrons

like or same




to make a complete circuit you need

D-cell, a bulb or motor, and wires

in a circuit

a switch opens and closes making the path complete or incomplete

you can tell if the material is a conductor or insulator by

using to try and make a complete circuit

connductors are


In a series circuit te components have to

share all of the electricity

if you are using two batteries in a series circuit they both have to be

facing the same way

you can make a magnet that turns on and off by

wrapping insulated wire around a steel rivet and connecting it to an electric circuit

To make a strong electromagnet you need to

Wrap the wire tightly between the head of the rivet and the first washer

The more winds of the wire on the electromagnet

the stronger the magnetism

tighter coils produce

a stronger electromagnet

all coils need to be wound in

the same direction

Thicker wire makes

a stronger electromagnet

a telegraph is an

electric communication device

the clicks produced by the telegraph can be made into

a code to send messages

a code is a

symbolic system used for information

Two connect two telegraphs for two way communication you have to

make two complete circuits

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