How do voices travel over the phone?
Ages 6 to 11
Science - Physical Science
Technology Education - Communications and Technology
One student speaks to another through a plastic cup, which is attached to another plastic cup by a piece of string. Create a timeline showing images of the evolution of the telephone, from the time of its invention by Alexander Graham Bell in 1876 to the present. Try to understand the impact the appearance of the telephone had on daily life. Research the work of Alexander Graham Bell.