Microorganisms: Helpful & Harmful

Living things too small to be seen with just our eyes

• microorganisms
• mold
• decomposers
• soil

A microorganism that can be helpful or harmful to humans 

• bacteria
• fungi
• air
• water

A tool used to see tiny cells

• binoculars
• magnifying glass
• telescope
• microscope

_________________ bacteria are in your _________________ to help digest food.

• Helpful; throat
• Helpful; stomach
• Harmful; esophagus
• Harmful; lungs

Tags

NGSS.MS-LS1-7

Harmful bacteria produces cheese.

• True
• False

Tags

NGSS.MS-LS1-7

Four students in Mrs. Sterling's class make the following observations.  Choose which student is correct

• Shelby says that all microorganisms are found in the ocean.  Some are helpful, but some are harmful.  It's best to shower after swimming at the beach.
• Garry says that all microorganisms are harmful.  This is why we must get vaccinations and antibiotics from the doctor.
• Ireland says that some microorganims are helpful and some are harmful.  The best way to protect ourselves from harmful microbes is to wash our hands with soap and water.
• Jonathan says it's impossible to become sick from bacteria.  Only viruses and fungi can make a person sick.  Make sure to sneeze in your elbow to prevent the spread of germs.

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

Which is not an example of a helpful microorganism?

• Yeast to help bread rise
• A virus used in a vaccine
• Microbes used to clean oil spills
• Bacteria that causes strep throat

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

Tags

NGSS.MS-LS2-4

______________ helps us  digest our food and they produce needed vitamins.

• Bacteria
• Fungi
• Protozoa
• Algae

Tags

NGSS.MS-LS2-3