Louisiana Science Learning Standards — Grade 8


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1.8. PS-M-A2

Determine that all atoms of the same element are similar to but different from atoms of other elements

1.MS.SI-M-A1

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

10.8.ESS-M-A2

Illustrate the movement of convection currents

10.MS.SI-M-A4

Identify the difference between description and explanation

11.8.ESS-M-A2

Illustrate the movements of lithospheric plates as stated in the plate tectonics theory

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)

12.8.ESS-M-A3

Identify the edges of plate boundaries as likely areas of earthquakes and volcanic action

12.MS.SI-M-A4

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

13.8.ESS-M-A3

Describe the processes responsible for earthquakes and volcanoes and identify the effects of these processes (e.g., faulting, folding

13.MS.SI-M-A4

Identify patterns in data to explain natural events

14.8.ESS-M-A4

Distinguish between chemical and mechanical (physical) weathering and identify the role of weathering agents (e.g., wind, water, ice, gravity)

14.MS.SI-M-A5

Develop models to illustrate or explain conclusions reached through investigation

15.8.ESS-M-A4

Illustrate the role of organic processes in soil formation

15.MS.SI-M-A5

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

16.8.ESS-M-A5

Compare the physical characteristics of rock and mineral specimens to observe that a rock is a mixture of minerals

16.MS.SI-M-A5

Use evidence to make inferences and predict trends

17.8.ESS-M-A5

Describe the properties of minerals (e.g., color, luster, hardness, streak)

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

18.8.ESS-M-A6

Describe how sedimentary, igneous, and metamorphic rocks form and change in the rock cycle

18.MS.SI-M-A6

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

19.8.ESS-M-A7

Determine the results of constructive and destructive forces upon landform development with the aid of geologic maps of Louisiana

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)

2.8. PS-M-A2

Recognize that elements with the same number of protons may or may not have the same charge

2.MS.SI-M-A1

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

20.8.ESS-M-A8

Describe how humans actions and natural processes have modified coastal regions in Louisiana and other locations

20.MS.SI-M-A7

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

21.8.ESS-M-A9

Read and interpret topographic maps

21.MS.SI-M-A7

Distinguish between observations and inferences

22.8.ESS-M-A9

Compare ocean floor topography to continental topography by using topographic maps

22.MS.SI-M-A7

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

23.8.ESS-M-A10

Explain the processes of evaporation, condensation, precipitation, infiltration, transpiration, and sublimation as they relate to the water cycle

23.MS.SI-M-A8

Use relevant safety procedures and equipment to conduct scientific investigations

24.8.ESS-M-A10

Investigate and explain how given factors affect the rate of water movement in the water cycle (e.g., climate, type of rock, ground cover)

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

25.8.ESS-M-A11

Explain and give examples of how climatic conditions on Earth are affected by the proximity of water

25.MS.SI-M-B1

Compare and critique scientific investigations

26.8.ESS-M-A11

Describe and illustrate the layers of Earths atmosphere

26.MS.SI-M-B1

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

27.8.ESS-M-A12

Identify different air masses, jet streams, global wind patterns, and other atmospheric phenomena and describe how they relate to weather events, such as El Nio and La Nia

27.MS.SI-M-B1

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

28.8.ESS-M-A12

Use historical data to plot the movement of hurricanes and explain events or conditions that affected their paths

28.MS.SI-M-B2

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

29.8.ESS-M-A12

Make predictions about future weather conditions based on collected weather data

29.MS.SI-M-B3

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

3.8.PS-M-A2

Define ions and describe them in terms of the number of protons, electrons, and their charges

3.MS.SI-M-A1

Use a variety of sources to answer questions

30.8.ESS-M-B1

Interpret a geologic timeline

30.MS.SI-M-B3

Describe why all questions cannot be answered with present technologies

31.8.ESS-M-B1

Compare fossils from different geologic eras and areas of Earth to show that life changes over time

31.MS.SI-M-B3

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

32.8.ESS-M-B2

Interpret a timeline starting with the birth of the solar system to the present day

32.MS.SI-M-B3

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

33.8.ESS-M-B2

Use historical data to draw conclusions about the age of Earth (e.g., half-life, rock strata)

33.MS.SI-M-B4

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

34.8.ESS-M-B3

Apply geological principles to determine the relative ages of rock layers (e.g., original horizontality, superposition, cross-cutting relationships)

34.MS.SI-M-B5

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

35.8.ESS-M-B3

Describe how processes seen today are similar to those in the past (e.g., weathering, erosion, lithospheric plate movement)

35.MS.SI-M-B5

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

36.8.ESS-M-C1

Describe the life cycle of a star and predict the next likely stage of the Sun

36.MS.SI-M-B5

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

37.8.ESS-M-C1

Use a Hertzsprung-Russell diagram and other data to compare the approximate mass, size, luminosity, temperature, structure, and composition of the Sun to other stars

37.MS.SI-M-B5

Critique and analyze their own inquiries and the inquiries of others

38.8.ESS-M-C2

Use data to compare the planets in terms of orbit, size, composition, density, rotation, revolution, and atmosphere

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

39.8.ESS-M-C3

Relate Newtons laws of gravity to the motions of celestial bodies and objects on Earth

39.MS.SI-M-B7

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

4.8.PS-M-B2

Demonstrate that Earth has a magnetic field by using magnets and compasses

4.MS.SI-M-A2

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

40.8.ESS-M-C4

Identify and illustrate the relative positions of Earth, the Moon, and the Sun during eclipses and phases of the Moon

40.MS.SI-M-B7

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

41.8.ESS-M-C4

Describe the effects of the Moon on tides

42.8.ESS-M-C5

Interpret a scale model of the solar system

43.8.ESS-M-C6

Identify the processes involved in the creation of land and sea breezes

44.8.ESS-M-C6

Describe how unequal heating of Earths surface affects movement of air masses and water in the atmosphere and hydrosphere

45.8.ESS-M-C7

Explain how seasonal changes are caused by the tilt of Earth as it rotates on its axis and revolves around the Sun

46.8.ESS-M-C7

Illustrate and explain how the angle at which sunlight strikes Earth produces changes in the seasons and length of daylight

47.8.ESS-M-C7

Compare the relative distances from Earth to the Sun on the first day of summer and the first day of winter

48.8.ESS-M-C8

Communicate ways that information from space exploration and technological research have advanced understanding about Earth, the solar system, and the universe

49.8.ESS-M-C8

Identify practical applications of technological advances resulting from space exploration and scientific and technological research

5.8.PS-M-B2

Define gravity and describe the relationship among the force of gravity, the mass of objects, and the distance between objects

5.MS.SI-M-A2

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

50.8.SE-M-A3

Illustrate possible point and non-point source contributions to pollution and natural or human-induced pathways of a pollutant in an ecosystem

51.8.SE-M-A4

Analyze the consequences of human activities on global Earth systems

52.8.SE-M-A9

Describe the relationship between plant type and soil compatibility

53.8.SE-M-A10

Distinguish among several examples of erosion (e.g., stream bank, topsoil, coastal) and describe common preventive measures

6.8.PS-M-B2

Predict how the gravitational attraction between two masses will increase or decrease when changes are made in the masses or in the distance between the objects

6.MS.SI-M-A3

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

7.8.PS-M-B5

Explain the relationships among force, mass, and acceleration

7.MS.SI-M-A3

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

8.8.ESS-M-A1

Identify and describe the four density layers of Earth

8.MS.SI-M-A3

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

9.8.ESS-M-A2

Explain the historical development of the theories of plate tectonics, including continental drift and sea-floor spreading

9.MS.SI-M-A3

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