8. Sınıf İngilizce Scientists, Inventions and Discoveries Testi Çöz



1 )A person who studies the natural world through observation and experiments is a ----.

A) scientist
B) tourist
C) chef
D) operator
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2 )Which verb means creating a new device or method for the first time?

A) discover
B) invent
C) melt
D) suffer
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3 )Which sentence uses “discover” correctly?

A) Researchers discovered a machine from their own design.
B) Researchers discovered the laboratory every morning.
C) Researchers discovered a new species in the rainforest.
D) Researchers discovered an experiment into a test tube.
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4 )Which pair is correctly matched?

A) Isaac Newton — telephone
B) Marie Curie — printing press
C) Thomas Edison — gravity
D) Alexander Graham Bell — telephone
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5 )Which statement best explains the difference between an invention and a discovery?

A) An invention is something newly created, while a discovery reveals something that already exists.
B) An invention and a discovery always mean exactly the same thing.
C) A discovery is a machine, but an invention is always a natural law.
D) An invention reveals an existing fact, while a discovery creates a new device.
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6 )Read the information: “Dr Chen developed a low-cost device that cleans polluted water using solar energy.” What did Dr Chen do?

A) She discovered that water does not exist.
B) She invented a device for cleaning water.
C) She destroyed a scientific laboratory.
D) She explored a planet without equipment.
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7 )A scientist studies an unknown cave organism and proves that it is a species never recorded before. Which verb best describes the result?

A) invent
B) download
C) discover
D) predict
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8 )Four scientific achievements are listed: I. finding penicillin's antibacterial effect II. designing the first practical telephone III. identifying a new planet IV. producing a new type of robot Which ones are inventions?

A) I and III
B) I and II
C) III and IV
D) II and IV
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9 )Read the short biographies: • Scientist A observed falling objects and developed ideas about gravity. • Scientist B studied radioactivity and won Nobel Prizes. • Scientist C designed many practical electrical devices. Which scientists are described respectively?

A) Isaac Newton — Marie Curie — Thomas Edison
B) Thomas Edison — Isaac Newton — Marie Curie
C) Marie Curie — Thomas Edison — Isaac Newton
D) Alexander Graham Bell — Marie Curie — Isaac Newton
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10 )A news report says, “The research team did not create the ancient structure; they found it under the sea and proved its age.” Which conclusion is correct?

A) The team invented the ancient structure.
B) The team made a discovery rather than an invention.
C) The team performed no scientific work.
D) The structure was built by the researchers last year.
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