Ohio State Standards for Science: Grade 7

OH.1. Earth and Space Sciences: Students demonstrate an understanding about how Earth systems and processes interact in the geosphere resulting in the habitability of Earth. This includes demonstrating an understanding of the composition of the universe, the solar system and Earth. In addition, it includes understanding the properties and the interconnected nature of Earth's systems, processes that shape Earth and Earth's history. Students also demonstrate an understanding of how the concepts and principles of energy, matter, motion and forces explain Earth systems, the solar system and the universe. Finally, they grasp an understanding of the historical perspectives, scientific approaches and emerging scientific issues associated with Earth and space sciences.

1.A. Describe how the positions and motions of the objects in the universe cause predictable and cyclic events.

1.B. Explain that the universe is composed of vast amounts of matter, most of which is at incomprehensible distances and held together by gravitational force. Describe how the universe is studied by the use of equipment such as telescopes, probes, satellites and spacecraft.

1.C. Describe interactions of matter and energy throughout the lithosphere, hydrosphere and atmosphere (e.g., water cycle, weather and pollution).

1.D. Identify that the lithosphere contains rocks and minerals and that minerals make up rocks. Describe how rocks and minerals are formed and/or classified.

1.E. Describe the processes that contribute to the continuous changing of Earth's surface (e.g., earthquakes, volcanic eruptions, erosion, mountain building and lithospheric plate movements).

1.1. Grade Level Indicator: Earth Systems: Explain the biogeochemical cycles which move materials between the lithosphere (land), hydrosphere (water) and atmosphere (air). 9
Suggested Titles for Ohio Science State Standard 1.1.

1.2. Grade Level Indicator: Earth Systems: Explain that Earth's capacity to absorb and recycle materials naturally (e.g., smoke, smog and sewage) can change the environmental quality depending on the length of time involved (e.g. global warming). 105
Suggested Titles for Ohio Science State Standard 1.2.

1.3. Grade Level Indicator: Earth Systems: Describe the water cycle and explain the transfer of energy between the atmosphere and hydrosphere. 6
Suggested Titles for Ohio Science State Standard 1.3.

1.4. Grade Level Indicator: Earth Systems: Analyze data on the availability of fresh water that is essential for life and for most industrial and agricultural processes. Describe how rivers, lakes and groundwater can be depleted or polluted becoming less hospitable to life and even becoming unavailable or unsuitable for life. 27
Suggested Titles for Ohio Science State Standard 1.4.

1.5. Grade Level Indicator: Earth Systems: Make simple weather predictions based on the changing cloud types associated with frontal systems. 60
Suggested Titles for Ohio Science State Standard 1.5.

1.6. Grade Level Indicator: Earth Systems: Determine how weather observations and measurements are combined to produce weather maps and that data for a specific location at one point in time can be displayed in a station model. 60
Suggested Titles for Ohio Science State Standard 1.6.

1.7. Grade Level Indicator: Earth Systems: Read a weather map to interpret local, regional and national weather. 43
Suggested Titles for Ohio Science State Standard 1.7.

1.8. Grade Level Indicator: Earth Systems: Describe how temperature and precipitation determine climatic zones (biomes) (e.g., desert, grasslands, forests, tundra and alpine). 18
Suggested Titles for Ohio Science State Standard 1.8.

1.9. Grade Level Indicator: Earth Systems: Describe the connection between the water cycle and weather-related phenomenon (e.g., tornadoes, floods, droughts and hurricanes). 27
Suggested Titles for Ohio Science State Standard 1.9.

OH.2. Life Sciences: Students demonstrate an understanding of how living systems function and how they interact with the physical environment. This includes an understanding of the cycling of matter and flow of energy in living systems. An understanding of the characteristics, structure and function of cells, organisms and living systems will be developed. Students will also develop a deeper understanding of the principles of heredity, biological evolution, and the diversity and interdependence of life. Students demonstrate an understanding of different historical perspectives, scientific approaches and emerging scientific issues associated with the life sciences.

2.A. Explain that the basic functions of organisms are carried out in cells and groups of specialized cells form tissues and organs; the combination of these cells make up multicellular organisms that have a variety of body plans and internal structures.

2.B. Describe the characteristics of an organism in terms of a combination of inherited traits and recognize reproduction as a characteristic of living organisms essential to the continuation of the species.

2.C. Explain how energy entering the ecosystems as sunlight supports the life of organisms through photosynthesis and the transfer of energy through the interactions of organisms and the environment.

2.D. Explain how extinction of a species occurs when the environment changes and its adaptive characteristics are insufficient to allow survival (as seen in evidence of the fossil record).

2.1. Grade Level Indicator: Characteristics and Structure of Life: Investigate the great variety of body plans and internal structures found in multicellular organisms. 40
Suggested Titles for Ohio Science State Standard 2.1.

2.2. Grade Level Indicator: Diversity and Interdependence of Life: Investigate how organisms or populations may interact with one another through symbiotic relationships and how some species have become so adapted to each other that neither could survive without the other (e.g., predator-prey, parasitism, mutualism and commensalism). 20
Suggested Titles for Ohio Science State Standard 2.2.

2.3. Grade Level Indicator: Diversity and Interdependence of Life: Explain how the number of organisms an ecosystem can support depends on adequate biotic (living) resources (e.g., plants, animals) and abiotic (non-living) resources (e.g., light, water and soil). 26
Suggested Titles for Ohio Science State Standard 2.3.

2.4. Grade Level Indicator: Diversity and Interdependence of Life: Investigate how overpopulation impacts an ecosystem. 26
Suggested Titles for Ohio Science State Standard 2.4.

2.5. Grade Level Indicator: Diversity and Interdependence of Life: Explain that some environmental changes occur slowly while others occur rapidly (e.g., forest and pond succession, fires and decomposition). 75
Suggested Titles for Ohio Science State Standard 2.5.

2.6. Grade Level Indicator: Diversity and Interdependence of Life: Summarize the ways that natural occurrences and human activity affect the transfer of energy in Earth's ecosystems (e.g., fire, hurricanes, roads and oil spills). 84
Suggested Titles for Ohio Science State Standard 2.6.

2.7. Grade Level Indicator: Diversity and Interdependence of Life: Explain that photosynthetic cells convert solar energy into chemical energy that is used to carry on life functions or is transferred to consumers and used to carry on their life functions. 64
Suggested Titles for Ohio Science State Standard 2.7.

2.8. Grade Level Indicator: Evolutionary Theory: Investigate the great diversity among organisms. 129
Suggested Titles for Ohio Science State Standard 2.8.

OH.3. Physical Sciences: Students demonstrate an understanding of the composition of physical systems and the concepts and principles that describe and predict physical interactions and events in the natural world. This includes demonstrating an understanding of the structure and properties of matter, the properties of materials and objects, chemical reactions and the conservation of matter. In addition, it includes understanding the nature, transfer and conservation of energy; motion and the forces affecting motion; and the nature of waves and interactions of matter and energy. Students demonstrate an understanding of the historical perspectives, scientific approaches and emerging scientific issues associated with the physical sciences.

3.A. Relate uses, properties and chemical processes to the behavior and/or arrangement of the small particles that compose matter.

3.B. In simple cases, describe the motion of objects and conceptually describe the effects of forces on an object.

3.C. Describe renewable and nonrenewable sources of energy (e.g., solar, wind, fossil fuels, biomass, hydroelectricity, geothermal and nuclear energy) and the management of these sources.

3.D. Describe that energy takes many forms, some forms represent kinetic energy and some forms represent potential energy; and during energy transformations the total amount of energy remains constant.

3.1. Grade Level Indicator: Nature of Matter: Investigate how matter can change forms but the total amount of matter remains constant. 8
Suggested Titles for Ohio Science State Standard 3.1.

3.2. Grade Level Indicator: Nature of Energy: Describe how an object can have potential energy due to its position or chemical composition and can have kinetic energy due to its motion. 34
Suggested Titles for Ohio Science State Standard 3.2.

3.3. Grade Level Indicator: Nature of Energy: Identify different forms of energy (e.g., electrical, mechanical, chemical, thermal, nuclear, radiant and acoustic). 34
Suggested Titles for Ohio Science State Standard 3.3.

3.4. Grade Level Indicator: Nature of Energy: Explain how energy can change forms but the total amount of energy remains constant. 34
Suggested Titles for Ohio Science State Standard 3.4.

3.5. Grade Level Indicator: Nature of Energy: Trace energy transformation in a simple closed system (e.g., a flashlight). 7
Suggested Titles for Ohio Science State Standard 3.5.

OH.4. Science and Technology: Students recognize that science and technology are interconnected and that using technology involves assessment of the benefits, risks and costs. Students should build scientific and technological knowledge, as well as the skill required to design and construct devices. In addition, they should develop the processes to solve problems and understand that problems may be solved in several ways.

4.A. Give examples of how technological advances, influenced by scientific knowledge, affect the quality of life.

4.B. Design a solution or product taking into account needs and constraints (e.g., cost, time, trade-offs, properties of materials, safety and aesthetics).

4.1. Grade Level Indicator: Understanding Technology: Explain how needs, attitudes and values influence the direction of technological development in various cultures. 34
Suggested Titles for Ohio Science State Standard 4.1.

4.2. Grade Level Indicator: Understanding Technology: Describe how decisions to develop and use technologies often put environmental and economic concerns in direct competition with each other. 34
Suggested Titles for Ohio Science State Standard 4.2.

4.3. Grade Level Indicator: Understanding Technology: Recognize that science can only answer some questions and technology can only solve some human problems. 140
Suggested Titles for Ohio Science State Standard 4.3.

4.4. Grade Level Indicator: Abilities To Do Technological Design: Design and build a product or create a solution to a problem given two constraints (e.g., limits of cost and time for design and production or supply of materials and environmental effects). 4
Suggested Titles for Ohio Science State Standard 4.4.

OH.5. Scientific Inquiry: Students develop scientific habits of mind as they use the processes of scientific inquiry to ask valid questions and to gather and analyze information. They understand how to develop hypotheses and make predictions. They are able to reflect on scientific practices as they develop plans of action to create and evaluate a variety of conclusions. Students are also able to demonstrate the ability to communicate their findings to others.

5.A. Explain that there are differing sets of procedures for guiding scientific investigations and procedures are determined by the nature of the investigation, safety considerations and appropriate tools.

5.B. Analyze and interpret data from scientific investigations using appropriate mathematical skills in order to draw valid conclusions.

5.1. Grade Level Indicator: Doing Scientific Inquiry: Explain that variables and controls can affect the results of an investigation and that ideally one variable should be tested at a time; however it is not always possible to control all variables. 4
Suggested Titles for Ohio Science State Standard 5.1.

5.2. Grade Level Indicator: Doing Scientific Inquiry: Identify simple independent and dependent variables. 4
Suggested Titles for Ohio Science State Standard 5.2.

5.3. Grade Level Indicator: Doing Scientific Inquiry: Formulate and identify questions to guide scientific investigations that connect to science concepts and can be answered through scientific investigations. 6
Suggested Titles for Ohio Science State Standard 5.3.

5.4. Grade Level Indicator: Doing Scientific Inquiry: Choose the appropriate tools and instruments and use relevant safety procedures to complete scientific investigations. 4
Suggested Titles for Ohio Science State Standard 5.4.

5.5. Grade Level Indicator: Doing Scientific Inquiry: Analyze alternative scientific explanations and predictions and recognize that there may be more than one good way to interpret a given set of data. 6
Suggested Titles for Ohio Science State Standard 5.5.

5.6. Grade Level Indicator: Doing Scientific Inquiry: Identify faulty reasoning and statements that go beyond the evidence or misinterpret the evidence. 6
Suggested Titles for Ohio Science State Standard 5.6.

5.7. Grade Level Indicator: Doing Scientific Inquiry: Use graphs, tables and charts to study physical phenomena and infer mathematical relationships between variables (e.g., speed and density). 9
Suggested Titles for Ohio Science State Standard 5.7.

OH.6. Scientific Ways of Knowing: Students realize that the current body of scientific knowledge must be based on evidence, be predictive, logical, subject to modification and limited to the natural world. This includes demonstrating an understanding that scientific knowledge grows and advances as new evidence is discovered to support or modify existing theories, as well as to encourage the development of new theories. Students are able to reflect on ethical scientific practices and demonstrate an understanding of how the current body of scientific knowledge reflects the historical and cultural contributions of women and men who provide us with a more reliable and comprehensive understanding of the natural world.

6.A. Use skills of scientific inquiry processes (e.g., hypothesis, record keeping, description and explanation).

6.B. Explain the importance of reproducibility and reduction of bias in scientific methods.

6.C. Give examples of how thinking scientifically is helpful in daily life.

6.1. Grade Level Indicator: Ethical Practices: Show that the reproducibility of results is essential to reduce bias in scientific investigations. 6
Suggested Titles for Ohio Science State Standard 6.1.

6.2. Grade Level Indicator: Ethical Practices: Describe how repetition of an experiment may reduce bias. 6
Suggested Titles for Ohio Science State Standard 6.2.

6.3. Grade Level Indicator: Science and Society: Describe how the work of science requires a variety of human abilities and qualities that are helpful in daily life (e.g., reasoning, creativity, skepticism and openness). 59
Suggested Titles for Ohio Science State Standard 6.3.