SS Review three for 4th grade for 3/12

a medical device used to treat patients that had Polio

• iron lung
• Silver dart
• raw materials
• telegraph
• phonograph

the first heavy powered aircraft in Canada

• iron lung
• Silver dart
• raw materials
• telegraph
• phonograph

basic material from which a product is made

• iron lung
• Silver dart
• raw materials
• telegraph
• phonograph

a device for transmitting and receiving messages from long distances

• iron lung
• Silver dart
• raw materials
• telegraph
• phonograph

instrument for reproducing sounds by means of vibrations

• iron lung
• Silver dart
• raw materials
• telegraph
• phonograph

manufacturing in factory settings using machine plus labor force to increase production (basically added technology and people together to do the work faster and better)

• industrialization
• polio
• morse code
• phonograph

a virus that can affect the brain and the spinal chord

• industrialization
• polio
• morse code
• phonograph

letters are represented with sound using long and short signals for the letters

• industrialization
• polio
• morse code
• phonograph

basically a record player

• industrialization
• polio
• morse code
• phonograph

brought spinning machines to the U.S.

• Samuel Slater
• Samuel Morse
• Thomas Edison
• Richard Arkwright