Micro-organisms is one of 9 topics in the Grade 8 Natural Sciences CAPS syllabus, covered across 3 lessons on Study Vault. Below are real practice questions from this topic with full worked answers.
Sample practice questions
Easy
1. What are micro-organisms?
Living things too small to see with the naked eye
Non-living chemical substances
Large visible plants
Rocks and minerals found in soil
Answer: Living things too small to see with the naked eye — Micro-organisms are living things that are too small to see with the naked eye and can only be seen under a microscope.
Easy
2. Which of the following is NOT one of the four main types of micro-organism?
Insects
Viruses
Bacteria
Fungi
Answer: Insects — The four main types of micro-organism are viruses, bacteria, protists and fungi -- insects are visible to the naked eye and are not micro-organisms.
Medium
3. Name the instrument used to see micro-organisms, since they are too small for the naked eye.
Answer: microscope — A microscope magnifies micro-organisms enough to be seen, since they are too small to see with the naked eye.
