Brain Pop Jr. Alexander Graham Bell

He taught deaf students to communicate

he only invented the telephone.

to look for

to get hurt

to invent

to hurt

a telephone only sends messages and a telegraph receives them

a telephone is able to send and receive speech, but a telegraph cannot

a telegraph can send sounds but a telephones can only receive sound

a telegraph can send many messages along a wire, a telephone can't

Elisha Gray

Helen Keller

Thomas Edison

Thomas Watson

a wheat husker

telephone

metal detector

a device that could record and play sound

to change from one thing to another

to move quickly using electricity

to hear something clearly

to make sounds travel

to find

to improve

to stop

to understand

Thomas Edison

Alexander Graham Bell

Thomas Watson

Samuel Morse

People decided to build their own

People thought it would not last

People put telegraphs in their homes

People started to buy and use telephones

Bell invented the wheat husker

Bell built the telephone and received a patent for it

Bell helped design a boat

Bell made changes to the phonograph so it would work better