Let’s go through each question one by one. I’ll explain what each part is asking and give you the correct answer in simple words.
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1. What bacteria uses tiny “hairs” ________
Some bacteria have little hair-like parts on their surface called
pili (or sometimes fimbriae). These help them stick to things or move around.
✔ Answer:
Pili
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2. What are the oldest life forms on earth? ________
Bacteria are some of the very first living things that ever existed on Earth — even before plants or animals!
✔ Answer:
Bacteria
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3. What type of bacteria causes food poisoning? ________
There are many types, but a common one that makes people sick from bad food is
Salmonella or
E. coli. Since the worksheet mentions “bacteria,” either is fine — but Salmonella is often taught as the classic example.
✔ Answer:
Salmonella *(or E. coli — both are acceptable)*
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4. What part of the bacteria cell keeps it safe? ________
The outer layer that protects the inside of the bacterium is called the
cell wall. It’s like a shield.
✔ Answer:
Cell wall
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5. Name two foods that bacteria help make: ________
Bacteria are used to make yummy foods like yogurt and cheese! They also help make pickles, sourdough bread, and kimchi.
✔ Answer:
Yogurt and cheese *(any two fermented foods work)*
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6. What does “decompose” mean? ________
To decompose means to break down dead stuff — like leaves or old food — into smaller pieces so nature can reuse it. Bacteria do this job!
✔ Answer:
Break down dead material
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7. What is the control center of the bacteria cell? ________
Unlike human cells, bacteria don’t have a nucleus. But they still have DNA floating inside that controls everything. So we say the
nucleoid region (where the DNA is) is the control center.
✔ Answer:
Nucleoid *(or “DNA” if your class hasn’t learned “nucleoid” yet)*
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8. What part of the bacteria cell helps it move? ________
That long tail-looking thing at the back? That’s the
flagellum (plural: flagella). It spins like a propeller to push the bacterium forward.
✔ Answer:
Flagellum
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9. Where are all the bacteria found? ________
Everywhere! In soil, water, air, on your skin, inside your gut… basically every place on Earth has bacteria.
✔ Answer:
Everywhere *(or “in almost all environments”)*
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10. To what kingdom do common bacteria belong? ________
In science, living things are grouped into kingdoms. Common bacteria belong to the kingdom called
Monera — though some newer systems call it
Bacteria. For school worksheets, Monera is still commonly used.
✔ Answer:
Monera
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Final Answer:
1. Pili
2. Bacteria
3. Salmonella (or E. coli)
4. Cell wall
5. Yogurt and cheese
6. Break down dead material
7. Nucleoid (or DNA)
8. Flagellum
9. Everywhere
10. Monera
Parent Tip: Review the logic above to help your child master the concept of prokaryote coloring worksheet.
