Transportation
Who explored the land west of the Mississippi River?
Lewis and Clark
What was the first way that people would send letters in the early 1800s?
By horseback
Who invented the light bulb?
Thomas Edison
What is the most important process of pasteurization?
Heating the milk
How did Lewis and Clark travel?
Over the Rocky Mountains by foot and horseback.
Later, a faster way was developed that involved checkpoints. What was this way of transportation?
The Pony Express
What did Cyrus Hall McCormick design that could help harvest wheat easier?
The reaper
A weak or killed form of a disease that is given to people.
Vaccine
How did settlers, fur traders, and Native Americans travel?
By covered wagons
What was the way to communicate through long distances in 1837?
Morse Code
What was invented to hep people remember their favorite times?
Cameras
What vaccine did Jonas Salk create?
The polio vaccine
James Watt and Richard Trevithick developed a better way for families to travel, what was this?
The steam locomotive
Then, a way of communication was found in a way that we could use a human voice. What was this?
The telephone
What was designed to help people research various topics?
The computer
Gertrude Elion made ______ that helped treat or cure a disease.
medicine
Who invented the first gas powered car?
Karl Benz and Gottlieb Daimler
What is the communication that signals could be sent through the air and not wires?
Radio
Why were lightbulbs created?
Gas lamps and candles caused fires and didn't give off much light.
Louis Pasteur had the theory that if germs could be kept out of the body, then the diseases could also be kept out. What did he develop?
Pasteurization