Louisiana Science Learning Standards — Grade 7


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1.7.PS-M-A9

Identify the elements most often found in living organisms (e.g., C, N, H, O, P, S, Ca, Fe)

1.MS.SI-M-A1

Generate testable questions about objects, organisms, and events that can be answered through scientific investigation

10.7.LS-M-A5

Describe the way major organ systems in the human body interact to sustain life

10.MS.SI-M-A4

Identify the difference between description and explanation

11.7.LS-M-A6

Describe the growth and development of humans from infancy to old age

11.MS.SI-M-A4

Construct, use, and interpret appropriate graphical representations to collect, record, and report data (e.g., tables, charts, circle graphs, bar and line graphs, diagrams, scatter plots, symbols)

12.7.LS-M-A6

Explain how external factors and genetics can influence the quality and length of human life (e.g., nutrition, smoking, drug use, exercise)

12.MS.SI-M-A4

Use data and information gathered to develop an explanation of experimental results

13.7.LS-M-A7

Identify and describe common communicable and noncommunicable diseases and the methods by which they are transmitted, treated, and prevented

13.MS.SI-M-A4

Identify patterns in data to explain natural events

14.7. LS-M-B1

Differentiate between sexual and asexual reproduction

14.MS.SI-M-A5

Develop models to illustrate or explain conclusions reached through investigation

15.7.LS-M-B1

Contrast the processes of mitosis and meiosis in relation to growth, repair, reproduction, and heredity

15.MS.SI-M-A5

Identify and explain the limitations of models used to represent the natural world

16.7.LS-M-B2

Explain why chromosomes in body cells exist in pairs

16.MS.SI-M-A5

Use evidence to make inferences and predict trends

17.7.LS-M-B2

Explain the relationship of genes to chromosomes and genotypes to phenotypes

17.MS.SI-M-A6

Recognize that there may be more than one way to interpret a given set of data, which can result in alternative scientific explanations and predictions

18.7.LS-M-B2

Recognize genetic errors caused by changes in chromosomes

18.MS.SI-M-A6

Identify faulty reasoning and statements that misinterpret or are not supported by the evidence

19.7.LS-M-B3

Apply the basic laws of Mendelian genetics to solve simple monohybrid crosses, using a Punnett square

19.MS.SI-M-A7

Communicate ideas in a variety of ways (e.g., symbols, illustrations, graphs, charts, spreadsheets, concept maps, oral and written reports, equations)

2.7.LS-M-A1

Compare the basic structures and functions of different types of cells

2.MS.SI-M-A1

Identify problems, factors, and questions that must be considered in a scientific investigation

20.7.LS-M-B3

Explain the differences among the inheritance of dominant, recessive, and incomplete dominant traits

20.MS.SI-M-A7

Write clear, step-by-step instructions that others can follow to carry out procedures or conduct investigations

21.7.LS-M-B3

Use a Punnett square to demonstrate how sex-linked traits are inherited

21.MS.SI-M-A7

Distinguish between observations and inferences

22.7.LS-M-B3

Give examples of the importance of selective breeding (e.g., domestic animals, livestock, horticulture)

22.MS.SI-M-A7

Use evidence and observations to explain and communicate the results of investigations

23.7.LS-M-C1

Classify organisms based on structural characteristics, using a dichotomous key

23.MS.SI-M-A8

Use relevant safety procedures and equipment to conduct scientific investigations

24.7.LS-M-C2

Analyze food webs to determine energy transfer among organisms

24.MS.SI-M-A8

Provide appropriate care and utilize safe practices and ethical treatment when animals are involved in scientific field and laboratory research

25.7.LS-M-C3

Locate and describe the major biomes of the world

25.MS.SI-M-B1

Compare and critique scientific investigations

26.7.LS-M-C3

Describe and compare the levels of organization of living things within an ecosystem

26.MS.SI-M-B1

Use and describe alternate methods for investigating different types of testable questions

27.7.LS-M-C4

Identify the various relationships among plants and animals (e.g., mutualistic, parasitic, producer/consumer)

27.MS.SI-M-B1

Recognize that science uses processes that involve a logical and empirical, but flexible, approach to problem solving

28.7.LS-M-C4

Differentiate between ecosystem components of habitat and niche

28.MS.SI-M-B2

Recognize that investigations generally begin with a review of the work of others

29.7.LS-M-C4

Predict the impact changes in a species population have on an ecosystem

29.MS.SI-M-B3

Explain how technology can expand the senses and contribute to the increase and/or modification of scientific knowledge

3.7.LS-M-A1

Illustrate and demonstrate osmosis and diffusion in cells

3.MS.SI-M-A1

Use a variety of sources to answer questions

30.7.LS-M-D1

Differentiate between structural and behavioral adaptations in a variety of organisms

30.MS.SI-M-B3

Describe why all questions cannot be answered with present technologies

31.7.LS-M-D1

Describe and evaluate the impact of introducing nonnative species into an ecosystem

31.MS.SI-M-B3

Recognize that there is an acceptable range of variation in collected data

32.7.LS-M-D2

Describe changes that can occur in various ecosystems and relate the changes to the ability of an organism to survive

32.MS.SI-M-B3

Explain the use of statistical methods to confirm the significance of data (e.g., mean, median, mode, range)

33.7.LS-M-D2

Illustrate how variations in individual organisms within a population determine the success of the population

33.MS.SI-M-B4

Evaluate models, identify problems in design, and make recommendations for improvement

34.7.LS-M-D2

Explain how environmental factors impact survival of a population

34.MS.SI-M-B5

Recognize the importance of communication among scientists about investigations in progress and the work of others

35.7.SE-M-A1

Identify resources humans derive from ecosystems

35.MS.SI-M-B5

Explain how skepticism about accepted scientific explanations (i.e., hypotheses and theories) leads to new understanding

36.7.SE-M-A1

Distinguish the essential roles played by biotic and abiotic components in various ecosystems

36.MS.SI-M-B5

Explain why an experiment must be verified through multiple investigations and yield consistent results before the findings are accepted

37.7.SE-M-A2

Identify and describe the effects of limiting factors on a given population

37.MS.SI-M-B5

Critique and analyze their own inquiries and the inquiries of others

38.7.SE-M-A2

Evaluate the carrying capacity of an ecosystem

38.MS.SI-M-B6

Explain that, through the use of scientific processes and knowledge, people can solve problems, make decisions, and form new ideas

39.7.SE-M-A4

Analyze the consequences of human activities on ecosystems

39.MS.SI-M-B7

Identify areas in which technology has changed human lives (e.g., transportation, communication, geographic information systems, DNA fingerprinting)

4.7.LS-M-A2

Compare functions of plant and animal cell structures (i.e., organelles)

4.MS.SI-M-A2

Design, predict outcomes, and conduct experiments to answer guiding questions

40.7.SE-M-A5

Construct or draw food webs for various ecosystems

40.MS.SI-M-B7

Evaluate the impact of research on scientific thought, society, and the environment

41.7.SE-M-A7

Describe the nitrogen cycle and explain why it is important for the survival of organisms

42.7.SE-M-A7

Describe how photosynthesis and respiration relate to the carbon cycle

43.7.SE-M-A8

Identify and analyze the environmental impact of humans use of technology (e.g., energy production, agriculture, transportation, human habitation)

5.7.LS-M-A3

Compare complete and incomplete metamorphosis in insects (e.g., butterflies, mealworms, grasshoppers)

5.MS.SI-M-A2

Identify independent variables, dependent variables, and variables that should be controlled in designing an experiment

6.7.LS-M-A3

Compare the life cycles of a variety of organisms, including non-flowering and flowering plants, reptiles, birds, amphibians, and mammals

6.MS.SI-M-A3

Select and use appropriate equipment, technology, tools, and metric system units of measurement to make observations

7.7.LS-M-A4

Construct a word equation that illustrates the processes of photosynthesis and respiration

7.MS.SI-M-A3

Record observations using methods that complement investigations (e.g., journals, tables, charts)

8.7.LS-M-A4

Distinguish between aerobic respiration and anaerobic respiration

8.MS.SI-M-A3

Use consistency and precision in data collection, analysis, and reporting

9.7.LS-M-A5

Relate structural features of organs to their functions in major systems

9.MS.SI-M-A3

Use computers and/or calculators to analyze and interpret quantitative data