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Cellular Life

Grade Level: 7th

Subject: Science

Time Frame: 8 weeks (August/September)

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Essential Questions

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- Where did bacteria come from? How long ago did bacteria begin?
- where do bacteria get their energy and how do they survive?
- why are all bacteria single-celled?
- how do bacteria adapt and evolve? Are bacteria more or less evolved than people?
- how do bacteria interact with each other? how do they interact with animals, including us?
- is there a connection between our cells and bacterial cells?

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By the end of the unit, students will know:

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- how cells were formed and evolved
- how mass is conserved

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By the end of the unit, students will be able to:

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- develop and use a model to describe how the total number of atoms does not change in a chemical reaction and thus mass is conserved
- develop and use a model to describe the function of a cell as a whole and ways the parts of cells contribute to the function

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Chapter: Covered with Bacteria

# of Days: 2

Topics:

- covered with bacteria
- types of bacteria on people
'- facts and questions about bacteria

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Chapter: Chemistry of Life

# of Days: 12

Topics:

- introduction to chemistry
- hydrogen and helium
- more elements and more bonds
- conservation of matter

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Chapter: Energy

# of Days: 6

Topics:

- types of energy
- conservation of energy and entropy
- energy of life

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Chapter: Origins of Life

# of Days: 10

Topics:

- forming Earth and deep time
- the emergence of life
- organic molecules- forming amino acids
- forming cells

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Chapter: Prokaryotes

# of Days: 12

Topics:

- prokaryotes
- prokaryotic structure and functions
- bacterial evolution
- bacterial reproduction
- natural selection

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Chapter: Endo-symbiosis and Euka

# of Days: 10

Topics:

- eukaryotes
- the evolutions of eukaryotes by endosymbiosis
- other organelles in eukaryotes

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Chapter: Cellular Life Summary

# of Days: 3

Topics:

- questions about germs

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Standards

MS-LS1.A; MS-PS1.A; MS-PS1.B

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