More than 150 years ago, how did people keep in touch?
They wrote letters.
They used computers.
They used cell phones.
They could not contact one another.
Bell wanted to find a way to send ______ over wires, too.
voices
boys
In 1915, Bell made the first call that could be heard _______ the country.
to
across
Telegraph means...
a system of sending messages by using wires and electricity
people in an organization having the highest and most import
In the 1800s, what was the fastest way to communicate over long distances?
the Internet
the telegraph
text messages
the telephone
Deaf means...
not able to see
not able to hear, or not able to hear well
Who invented the telephone?
Steve Jobs
Thomas Edison
Alexander Graham Bell
Albert Einstein
Bell’s voice traveled over wires for 5,470 _____.
kilometers
kilograms
We use cell phones just to make calls.
false
true
Early telephones had _______ that stretched across cities.
horses
wires
dials
pipes
Only one _______ at a time could be sent over telegraph wires.
message
memory
The first telephones had no wires.
true
false
On March 10, 1876, Bell was able to send the ________ of his voice over wires.
sand
sound
One day, he heard the sound of a spring being pulled. The sound traveled over a long wire. This proved that sound could ________ over wires.
travel
trouble
Bell did many _______ with sound and the human voice.
experiments
experiences
Connect means...
to divide into smaller groups
to join two things together
This was the very ______ telephone call.
first
third
Bell experimented with sound and ______.
wires
wipers
Bell was a teacher and he worked with ______ children.
blind
deaf
Long ago, there were no ______.
telescopes
telephones
What were Bell’s interests?
He was interested in buying and selling.
He was interested in speech and hearing.
He was interested in reading and writing.
He was interested in painting and designing.
Replace means....
to make a version of something that is exactly like the orig
to put someone or something new in the place of something or
He also wanted to ______ more than one message at the same time.
send
sell
These days, people carry phones while they talk.
true
false
Wireless means....
a thin, flexible thread of metal
a telephone or telegraph set that works without wires
Communicate means....
to make very little or no noise
to express thoughts, feelings, or information to people
A person called a(n) ______helped people make calls.
electrician
operator
engineer
author
________ replaced phones with wires.
Postcards
Cell phonse
Telegraphs
Telephones
Wires from phones were connected to wires on the outside of buildings.
false
true
What did Bell try to find out through his experiment?
how to write messages quickly
how to use people for sending messages
how to send human voice over wire
how to make a strong wire
What did Bell find when he heard the sound of a spring being pulled?
He found that the sound of a spring was strange.
He found that sound could not move.
He found that sound traveled over a long wire.
He found that the wire blocked the sound.
Experiment means....
a student who is in his or her first year at university
a carefully planned test used to discover something unknown
Dial means....
the amount of space between two places or things
a round part of some telephones that you move to select numb
About 150 years ago, an inventor named Alexander Graham Bell ________ the telephone.
collected
invented
Signal means...
electrical or sound waves that are sent or received
a set of printed sheets of paper that are held together
Attatch means...
to separate something from something larger
to join, fasten, or connect
Invention means...
a situation in which someone becomes involved in a particula
the act or process of making or creating something new
Operator means...
a person whose job is to help to connect telephone calls
a person whose job is to chop down trees and cut wood
In the 1800s, the telegraph was the fastest way to ______ over long distances.
commute
communicate
The phones still need to be attached to walls.
false
true