# Microorganisms

> Grade 6: bacteria, viruses and fungi, helpful microbes (yoghurt, bread), harmful microbes and disease, how to stop germs spreading, decomposers.

Source: https://olyclass.com/library/science-g6-microorganisms-en/

- Subject: Science
- Level: Grade 6
- Quiz: 16
- Play it free on one screen (projector, TV or whiteboard): https://olyclass.com/library?play=science-g6-microorganisms-en
- Copy and edit it: https://olyclass.com/library?copy=science-g6-microorganisms-en
- Games it plays well in: [Three in a Row](https://olyclass.com/classroom-games/three-in-a-row/), [Line of Four](https://olyclass.com/classroom-games/line-of-four/), [Team Bingo](https://olyclass.com/classroom-games/team-bingo/), [Memory Match](https://olyclass.com/classroom-games/memory-match/)

## Questions

1. Which of these is a single-celled living thing? (Bacterium / Moss / Mushroom / Virus)
   Answer: Bacterium
2. Which of these can only reproduce inside a living host cell? (Bacterium / Mould / Virus / Yeast)
   Answer: Virus
3. Yeast, mushrooms and mould all belong to which group? (Bacteria / Fungi / Plants / Viruses)
   Answer: Fungi
4. Which microorganism makes bread dough rise? (Algae / Flu virus / Salmonella / Yeast)
   Answer: Yeast
5. What gas made by yeast forms bubbles in dough? (Carbon dioxide / Hydrogen / Nitrogen / Oxygen)
   Answer: Carbon dioxide
6. Yoghurt is made by adding helpful bacteria to milk.
   Answer: True
7. Which disease is caused by a virus? (Athlete's foot / Food poisoning from bacteria / Influenza (flu) / Tooth decay)
   Answer: Influenza (flu)
8. Antibiotics are medicines that work well against viruses.
   Answer: False
9. What is the best way to remove germs from your hands? (Rinse with cold water only / Shake them dry / Wash with soap and water / Wipe on your clothes)
   Answer: Wash with soap and water
10. What should you do when you sneeze to stop germs spreading? (Hold your breath / Sneeze into a tissue or elbow / Sneeze into your open hand / Sneeze towards a friend)
   Answer: Sneeze into a tissue or elbow
11. Why is food kept in a fridge? (Cold feeds the microbes / Cold kills all microbes instantly / Cold makes microbes helpful / Cold slows the growth of microbes)
   Answer: Cold slows the growth of microbes
12. What do decomposers do to dead plants and animals? (Break them down / Keep them fresh / Make them grow / Turn them into rock)
   Answer: Break them down
13. Decomposers return nutrients to the soil.
   Answer: True
14. Name one type of microorganism that is a decomposer.
   Answer: Fungi (such as mould) or bacteria
15. What do we call microbes that cause disease?
   Answer: Germs (pathogens)
16. What is the name of the tool that makes tiny microbes look bigger?
   Answer: A microscope