7th Grade Science
Unit 1: Chemistry of Life – Cells
Lafayette Parish School System
2013-2014
LPSS Science Teacher Leader Cadre
Annette Chapman – Paul Breaux
André Deshotel – Judice
Nathan Griffin – LJ Alleman
Nanette Meaux – Milton
Bridget Trahan – LPSS Science Lead Teacher
Lafayette Parish School System
2013-2014 Curriculum Map
Grade: 7th Science: Unit 1: Chemistry of life – Cells
Time Frame: August 14 – October 18
(46 DAYS)
Unit Description and Student Understandings: In this unit, the essential elements, chemical symbolism, how materials move into and within cells, and the
chemical energy processes of photosynthesis, aerobic respiration, and fermentation (anaerobic respiration) will be explored. This unit focuses on comparing the
basic structures and functions of different types of cells, with an emphasis on comparing the cell structures of plants and animals. Living organisms are composed
of various chemicals. A basic knowledge of chemical elements, symbols, formulas, equations, and energy processes is essential for appreciating and
comprehending life. Students should be able to describe the transport processes of osmosis and diffusion and predict the direction water will move between cells in
different concentrations of solutions. Students should also explain how the functions and processes of photosynthesis and aerobic respiration relate to each other
and differentiate between aerobic and anaerobic respiration. A basic knowledge of cellular structure and function is essential to the understanding of both plant and
animal cells. Students are expected to effectively use a compound microscope to view cells. They will create presentations on the development of the modern cell
theory, identify basic cell structures, and describe their functions in both plant and animal cells.
Guiding Questions:
1. Can students list the elements essential for life?
2. Can students describe the difference between osmosis and diffusion?
3. Can students describe the functions of photosynthesis and respiration, the reactants and products of each, and the relationship between these processes?
4. Can students cite what plants need in their environment to carry out photosynthesis and, ultimately, to live?
5. Can students explain the difference between aerobic and anaerobic respiration?
6. Can students explain why cells are called life’s building blocks?
7. Can students describe the cell as a three-dimensional object?
8. Can students compare and contrast a plant cell and an animal cell?
9. Can students locate and describe the function of cell organelles within the cell?
10. Can students describe how technology has played an increasingly important role in our knowledge of cell structures?
11. Can students articulate the major difference between mitosis and meiosis and describe the phases of each type of cell division?
Key Concepts:
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Describe osmosis and diffusion.
Describe basic needs and processes of common living cells or life (energy, transport mechanisms, elements/nutrients, reproduction)
Explain the processes of photosynthesis and respiration using a word equation.
Describe and contrast the processes (input, output, functions) of photosynthesis and aerobic respiration; determine the relationship between these two
processes: write the chemical equation for each process.
Differentiate between aerobic and anaerobic respiration in cells.
Identify and compare cell structures and functions.
Identify and compare different types of cells, their components, and the functions of each cell type and its basic organelles (plant cells, animal cell, red
blood cell, white blood cell, muscle cell, skin cell)
Compare plant and animal cell structures.
Compare mitosis and meiosis and differentiate between the cell divisions in each process.
7th Grade Science 2013-2014
Lafayette Parish School System
2013-2014 Curriculum Map
Grade: 7th Science: Unit 1: Chemistry of life – Cells
Time Frame: August 14 – October 18
(46 DAYS)
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Contrast meiosis and mitosis and recognize the function of each type of cell division.
Vocabulary List:
osmosis, diffusion, selectively permeable, active transport, passive transport
photosynthesis, respiration, products, reactants,
aerobic respiration, anaerobic respiration, fermentation
cell membrane, cell organelles, cell wall, chlorophyll, chloroplasts, chromosome, cytoplasm, endoplasmic reticulum, Golgi bodies, lysosomes,
mitochondria, nuclear membrane, nucleolus, nucleus, ribosome, prokaryotic, eukaryotic, vacuole
anaphase, cell cycle, chromatid, chromatin, chromosome, cytokinesis, daughter cell, interphase, metaphase, prophase, replication, telophase
CCSS Literacy
Standards
NGSS Practices
GLEs
Instructional Strategies
Differentiation
(Enrichment/Remediation Strategies)
One week extra has been added to allow for 4 days of sex education classes in the fall.
SI 1-30
7
TH
NGSS Practices:
1,2,3
Safety in the Science Classroom
Interactive Science textbook: p. 72 – 81
CCSS:
ELA-Literacy
RST.6-8.3,9
WHST.6-8.2
Incorporate the following throughout the year:
•
Interactive Science Textbook: 2- 35
•
Interactive Science Textbook: p. 41 – 71
GRADE PRETEST
PS-1( C) Identify the
elements most often found in
living organisms (e.g., C, N,
H, O, P, S, Ca, Fe) (PS-MA9)
LS-3 (E) Illustrate and
demonstrate osmosis and
diffusion in cells (LS-M-A1)
LS-7(E) Construct a word
equation that illustrates the
processes of photosynthesis
7th Grade Science 2013-2014
Scientific Method:
http://glencoe.mcgrawhill.com/sites/dl/free/007877800x/164155/0004
4686.html
Probe: Is It Living?
AUGUST 19-20
NGSS Practices:
1,2
CCSS:
ELA-Literacy
RST.6-8.4
WHST.6-8.2a
NGSS Practices:
2
CCSS:
ELA-Literacy
RST.6-8.3,7,8,9
WHST.6-8.2d,2f
Probe: “Plant and Animal Cells”
Interactive Science Textbook: Refer to 6th grade textbook page
183
Interactive Science Textbook: p. 88-93
http://chemistry.about.com/od/periodictabl
eelements/ig/Elements-in-the-Human-Body/
Activity 1: “Served with a grain of NaCl”
Activity 5: “Cell Structures”
Interactive Science Textbook: pgs. 94-99
Activity 6: “Moving Molecules”
Interactive Science Textbook: pgs. 100-105, 106-109
Activity 7: “Detecting Carbon Dioxide”
http://science-class.net/Biology/Osmosis.htm
http://scienceclass.net/Biology/Photosynthesis.htm
Lafayette Parish School System
2013-2014 Curriculum Map
Grade: 7th Science: Unit 1: Chemistry of life – Cells
Time Frame: August 14 – October 18
(46 DAYS)
and respiration (LS-M-A4)
LS-8 (E)
Distinguish between aerobic
respiration and anaerobic
respiration (LS-M-A4)
LS-2 (E)
Compare the basic structures
and function of different
types of cells (LS-M-A1)
LS-4 (E)
Compare functions of plant
and animal cell structures
(i.e., organelles) (LS-M-A2)
LS-15 (E)
Contrast the processes of
mitosis and meiosis in
relation to growth, repair,
reproduction, and heredity
(LS-M-B1)
NGSS Practices:
1,2,3 (Act.8&9)
CCSS:
ELA-Literacy
RST.6-8.4,6
WHST.6-8.1a,1b,1c
Activity 8: “Photosynthesis”
WHST.6-8.2d,2f
NGSS Practices:
1,2,3
Activity 9: “Plants and Food”
CCSS:
ELA-Literacy
RST.6-8.9
Interactive Science Textbook: pgs.110-111 (Textbook lacks a http://encyclopedia.kids.net.au/page/ce/Cellular
_respiration
complete lesson on this concept, need to supplement)
Activity 10: “Aerobic and Anaerobic Respiration”
Interactive Science Textbook: pgs. 130-139
Activity 4: “Differentiating between a plant and animal
cell”
Interactive Science Textbook: pgs. 130-137
CCSS:
ELA-Literacy
RST.6-8.7
http://glencoe.mcgrawhill.com/sites/dl/free/007877800x/164155/0005
3412.html
Different types of cells:
http://glencoe.mcgrawhill.com/sites/dl/free/007877800x/164155/0003
5805.html
Parts of the cell:
Addressed in Activity 4 & 5
http://glencoe.mcgrawhill.com/sites/dl/free/007877800x/164155/0003
5804.html
Interactive Science Textbook: pgs. 140-147
http://science.pppst.com/cells.html
Activity 2: “Mitosis”
http://glencoe.mcgrawhill.com/sites/007877800x/student_view0/unit1/
unit_project_2.html
http://glencoe.mcgrawhill.com/sites/dl/free/007877800x/164155/0005
3413.html
http://sciencespot.net/Pages/classbio.html#Anch
or-mitosis
http://scienceclass.net/Biology/Cell_Division.htm
UNIT 1 BENCHMARK ASSESSMENT
7th Grade Science 2013-2014
OCTOBER 18