Which invention helped control the flow of traffic?
The traffic signal helped control the flow of traffic.
100
How is Garret Morgan "handy"?
He worked on his family farm.
He worked as a handy man.
He fixes sewing machines.
100
When was Garret Morgan born? Answer in a complete sentence
He was born in 1877.
200
How do you say 化学品 in English?
chemicals
200
How do you say 实验 in English?
experiment
200
What invention was tested on an Airedale dog?
Hair straightener was tested on an Airedale dog.
200
How is Garret Morgan "creative"?
He invented hair straightener.
He invented the safety hood.
He invented the traffic signal.
200
When did slavery end?Answer in a complete sentence
Slavery ended in 1865.
300
How do you say 种族歧视 in English？
racism
300
What is the name of the lake where the tunnel explosion occurred?
Lake Erie
300
What was the accidental discovery?
Hair straightener
300
How is Garrett Morgan "brave"?
He is brave when he goes into the tunnel to rescue workers.
He is brave when he moves to Ohio when he is only 14.
300
When did the tragic fire kill 148 people?Answer in a complete sentence
The tragic fire killed 148 people in 1911.
400
How do you say "帆布” in English?
canvas
400
What does "tragic" mean?
悲惨的
400
How did Garret Morgan discover hair straightener?
He was trying to invent a mixture to keep the sewing machine needle cool. He accidentally wiped some of the mixture on the cloth. The mixture straightened the hairs in the cloth.
400
How is Garrett Morgan "determined"?
He is determined because he never gives up.
He is determined because he is always trying to solve problems.
400
When did Garret Morgan receive a patent for the safety hood?Answer in a complete sentence
He received a patent for the safety hood in 1914.
500
How do you say "博览会” in English?
exposition
500
Describe the landowner who Garrett Morgan worked for.
The landowner was wealthy.
500
Describe how the safety hood works.
The safety hood is made of canvas. It has 2 tubes. One tube is for breathing in clean air below the smoke. One tube is for breathing out CO2.
500
How is Garrett Morgan "caring"?
He is caring because he tries to help other African Americans improve their living and working conditions and get equal rights.
500
When did Garret Morgan receive a patent for the traffic signal?Answer in a complete sentence
He received a patent for the traffic signal in 1923.