CKLA 10 Lesson 2: Anton van Leeuwenhoek

Who was Anton van Leeuwenhoek, and why is he important?

• A scientist who invented the microscope

• A man who lived 400 years ago and made important discoveries

• The first person to use a telescope to study space

• A doctor who discovered the cure for bacteria

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What is the meaning of the word "bacteria" as described in the video?

• A type of virus

• Large organisms found in water

• Very small microorganisms that are too small to see

• A type of animal found in the ocean

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What was the first microscope used for in the narrator’s story?

• To play with toy soldiers

• To look at a butterfly wing up close

• To see stars in the night sky

• To read small print

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What does a magnifying glass do?

• Makes objects appear smaller

• Makes objects appear blurry

• Makes objects look larger than they really are

• Changes the color of objects

How did Anton van Leeuwenhoek first become interested in magnifying objects?

• He was a scientist who studied bacteria

• He used a magnifying glass to check cloth in his textile shop

• He found a microscope in his father’s attic

• He was given a microscope as a birthday gift

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What book inspired Anton van Leeuwenhoek to start using microscopes?

• "Micrographia" by Robert Hooke

• "The Origin of Species" by Charles Darwin

• "The Microscope Handbook" by Galileo

• "Biology of Small Organisms" by Isaac Newton

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How powerful were the microscopes that Anton van Leeuwenhoek built?

• They magnified objects 10 times their size

• They magnified objects 50 to 200 times their size

• They were weaker than a magnifying glass

• They could only be used to see large objects

What did Anton van Leeuwenhoek call the tiny organisms he discovered in water?

• Micro-germs

• Water bugs

• Animalcules

• Tiny creatures

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Why did some people think Anton van Leeuwenhoek was lying about his discoveries?

• They couldn't see what he saw and thought he was making it up

• They had already discovered bacteria before him

• They didn’t believe in science

• They thought he was using a telescope instead of a microscope

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Why was Anton’s microscope different from modern microscopes?

• It used two lenses instead of one

• It was larger than modern microscopes

• It was very simple and used only one lens

• It was digital and had a camera

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