Bacteria are a very interesting form of life because of their various shapes and reproductive capabilities. In this session, we'll look at their role in the ecosystem and see examples of them. If you have a microscope, consider looking at prepared slides.

1. Grade 6 Science
Mr. Johnston
Saigon South International School
Bacteria

2. Lesson Overview
Essential Questions
◼ What are bacteria?
◼ How to bacteria get food,
get energy, and
reproduce?
◼ What is the role of
bacteria in nature?
Vocabulary
◼ Bacteria Parts-
▪ Cytoplasm
▪ Flagellum
◼ Cellular Respiration
◼ Binary Fission
◼ Conjugation
◼ Decomposer

3. Picture
Definitions
Cell Wall-Protects the Cell
Cell Membrane-Thin layers that controls what
goes in and out of the cell
Cytoplasm-”Gell Like” fluid that moves
materials around inside the cell
Ribosomes-”Factories” where proteins are
produced.
Flagellum-Tail like “flag” that moves bacteria
around.

4. Facts about Bacteria:
◼ Reproduction
◼ Food intake
◼ Prokaryotes
◼ Needs….
◼ Domain
◼ Sexually or asexually (
Binary Fission or
conjugation)
◼ Hetero. or auto.
◼ No nucleus, but may
have a flagellum
◼ Oxygen to break down
their food. This is called
“Cellular Respiration”
◼ Monera (Bacteria)

5. Binary Fission: Asexual Reproduction

6. Conjugation-Sexual Reproduction

7. Cellular Respiration
The easy definition:
“Breaking down food to release energy”
The full definition:
Cellular respiration

8. Some common bacteria shapes:

9. What are bacteria good for?
◼ Oxygen and food production (try samples)
◼ Health maintenance and health production
◼ Environmental Cleanup and recycling
◼ Did you know?-Most bacteria are helpful in fighting off
bad bacteria, or do not harm you at all!
◼ Did you know: There are millions of bacteria living on
your body right now!

10. Microscope Activity:
◼ Set up your microscope and observe bacteria
◼ Draw what you see on a google drawing
◼ Write about what you see in a textbox. How does the
shape help it survive, reproduce?

11. Lab Activity: Design an Experiment
◼ “Comparing surfaces”
◼Which surfaces have the most bacteria?
◼Design an investigation to help answer
this question in small groups on your
google doc!

12. Lesson Reflection-With Partner
Essential Questions
◼ What are bacteria?
◼ How to bacteria get food,
get energy, and
reproduce?
◼ What is the role of
bacteria in nature?
Vocabulary
◼ Bacteria Parts-
▪ Cytoplasm
▪ Flagellum
◼ Cellular Respiration
◼ Binary Fission
◼ Conjugation
◼ Decomposer