Microorganisms in Our World
An 8th-grade science worksheet exploring different types of microorganisms, their characteristics, and their impact on humans and the environment.
Includes
Standards
Topics
Microorganisms in Our World
Name:
Date:
Score:
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 .
Related Worksheets
The Human Reproductive System
Explore the structures and functions of the male and female reproductive systems, including key hormones and processes.
Grade 8 Fungi Worksheet
Explore the fascinating world of fungi with this Grade 8 science worksheet covering their characteristics, reproduction, and ecological roles.
Interactions in an Ecosystem
Explore the complex relationships and interactions within ecosystems, including food webs, energy flow, and symbiotic relationships, for Grade 8 Science.
Immune System Basics
An introductory worksheet on the human immune system for 8th-grade science students.
Grade 8 Science: The Human Eye
Explore the anatomy and function of the human eye, including its parts, how vision works, and common eye conditions.
Ecological Relationships Worksheet
Explore ecological relationships including predation, competition, mutualism, commensalism, and parasitism with this Grade 8 Science worksheet.
Grade 8 Taxonomy Worksheet
Explore the principles of biological classification with this Grade 8 Science worksheet on Taxonomy, covering hierarchical ranks, binomial nomenclature, and the characteristics of different kingdoms.
Energy Flow in Ecosystems
Explore the concepts of energy flow, food chains, food webs, and ecological pyramids in ecosystems.