passive voice
Famous Scientists
Great Inventions
Fact or Fiction
100
turn into passive
They build bridges
The bridges are built
100
This scientist discovered gravity after, according to legend, an apple fell on his head.
Isaac Newton? 
100
This invention by Alexander Graham Bell changed the way people communicate over long distances.
telephone 
100
Lightning never strikes the same place twice.
fiction (It can and does! )
200
Turn into passive: “They built this school in 1995.”
“This school was built in 1995.” (Past Simple)
200
He developed the theory of relativity and said that “Imagination is more important than knowledge.”
Albert Einstein
200
This medical invention, introduced in the 1920s, has saved millions of lives by killing bacteria.
penicillin 
200
Fact or Fiction: A day on Venus is longer than its year.
fact (Venus rotates very slowly.)
300
"A new vaccine ___ (develop) by scientists now."
“is being developed” (Present Continuous Passive)
300
She was the first woman to win a Nobel Prize and the only person to win in two different sciences — Physics and Chemistry
Marie Curie
300
This item, invented by the Wright brothers in 1903, took humans into the sky.
airplane :focal(800x701:801x702)/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer_public/c4/0f/c40fa316-6409-4238-9a7b-a57392ced6b1/202206229-jp-0130xx-white.jpg)
300
Humans only use 10% of their brains.
fiction (We use nearly all of our brain, just not all at once.)
400
"The book was wrote by a famous author."
“The book was written by a famous author.”
400
This American inventor is known for the light bulb, phonograph, and over 1,000 patents.
Thomas Edison 
400
This invention by Tim Berners-Lee in 1989 completely transformed how we access and share information.
World Wide Web
400
The tallest mountain on Earth is Mount Everest.
Fact
500
"The homework ___ (must / finish) by tomorrow."
“The homework must be finished by tomorrow.”
500
He changed the way we understand evolution by writing “On the Origin of Species” in 1859.
Charles Darwin :max_bytes(150000):strip_icc()/Charles-Darwin-3000-3x2gty-58b9982e5f9b58af5c6a277f.jpg)
500
Invented by Johannes Gutenberg, this changed the spread of knowledge in Europe starting in the 15th century.
printing press 
500
The term “bug” for a computer error originated from a real insect found in a computer.
fact !