5th Grade Microorganisms

Which is a true statement?

• All microorganisms are harmful.
• All microorganisms are beneficial.
• Some microorganisms are harmful while others are beneficial.
• Microorganisms are beneficial only to humans.

This is the jelly-like substance that fills the cell and holds the organelles in place.

• chloroplast
• cytoplasm
• nucleus
• mitochodria

What is the cause of the common cold?

• bacteria
• cold temperatures
• sneezing and coughing
• viruses

Which best describes where you would find microorganisms?

• in ponds, lakes, and oceans.
• in animals, plants, and humans.
• on food that has rotted.
• everywhere around us.

Salmonella and E. Coli can be found on ________________ and ________________ so it is important to cook all meat to kill bacteria.

• Waffles and scrambled eggs
• Broccoli and steamed corn
• Eggs and raw chicken
• Sushi and Toaster Strudel

Algae and plankton are helpful microorganisms.

• True
• False

Yeast makes bread, rolls and cakes rise.

• True
• False

What is Penicillin (medicine) made from?

• Water
• Sugar
• Mold
• Algae

Mold helps dead things (plants, animals)...

• Grow
• Decay (Break down)
• Sleep
• Reproduce

Marco went to the doctor and was given a vaccine containing a virus. When Marco was surprised the vaccine contained a virus, the doctor explained that viruses and other microorganisms...

• only cause sickness to people
• can have benefits to people
• are rarely useful to people
• should not be placed in the body