Unit 5 Week 1

a set of plans or drawings when you invent something

• patent

• sound waves

• telegraph

waves that move through the air and carry sounds to your ears

• established

• sound waves

• distant

an old-fashioned way of sending messages by using wires and electrical signals

• distant

• revolutionary

• telegraph

to bring into existence

• established

• revolutionary

• distant

caused a great or complete change

• established

• revolutionary

• sound waves

existing or happening far away

• telegraph

• patent

• distant