Microorganisms in Our World
An 8th-grade science worksheet exploring different types of microorganisms, their characteristics, and their impact on humans and the environment.
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Microorganisms in Our World
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Read each question carefully and answer to the best of your ability. Use complete sentences for short answer questions.
1. Which of the following is NOT a type of microorganism?
Bacteria
Fungi
Plants
Viruses
2. Which characteristic is unique to viruses?
They are prokaryotic
They reproduce only inside host cells
They have a nucleus
They are multicellular
1. All microorganisms are harmful to humans.
True
False
2. Fungi include yeasts and molds.
True
False
1. Microorganisms that cause diseases are called .
2. The process of converting sugar into alcohol or acids using microorganisms is called .
1. Describe two ways microorganisms are beneficial to humans or the environment.
2. Explain why handwashing is an effective way to prevent the spread of some microorganisms.
Use the words below to complete the sentences.
3. Some microorganisms act as , breaking down dead organic matter.
4. Medicines used to kill bacteria are called .