Grade 8 Microorganisms

Which of the following is an example of a harmful microorganism?

• Fungi used as antibiotics
• Ecoli on food that makes people sick
• Bacteria found in yogurt.
• Microorganisms helping dead matter to decay

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Which of the following statements are true?

• All microorganisms are bad
• All microorganisms are good
• Some microorganisms are harmful, while some can be helpful
• Microorganisms are too small to do anything to anyone

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Which is not an example of a harmful microorganism?

• Mold growing on a kitchen sponge
• Bacteria found in yogurt
• Bacteria that causes turberculosis
• Salmonella on uncooked chicken

Yogurt contains harmful bacteria.

• True
• False

Are microorganisms helpful or harmful?

• Helpful
• Harmful
• Both
• Neither

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NGSS.MS-LS2-3

Yeast makes bread, rolls and cakes rise.

• True
• False

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A piece of bread has a tiny spot of mold growing on it. Is it safe to eat?

• Yes
• No

Which microorganisms listed below can be harmful?

• bacteria

• fungi

• protists

• all of the above

Yogurt and cheese can be produced with the help of ___________.

• Bacteria

• Virus

• Protozoa

• Algae

Which statement is NOT true?

• Microorganisms help dead things decay.

• Microorganisms only live in soil.

• Microorganisms cause disease.

• Microorganisms are used to make cheese.