Texas State Standards for Science: Grade 8

TX.112.24 (8.1) Scientific Processes: The student conducts field and laboratory investigations using safe, environmentally appropriate, and ethical practices.

8.1. (A) The student is expected to demonstrate safe practices during field and laboratory investigations. 5
Suggested Titles for Texas Science State Standard 8.1. (A)

8.1. (B) The student is expected to make wise choices in the use and conservation of resources and the disposal or recycling of materials. 187
Suggested Titles for Texas Science State Standard 8.1. (B)

TX.112.24 (8.2) Scientific Processes: The student uses scientific inquiry methods during field and laboratory investigations.

8.2. (A) The student is expected to plan and implement investigative procedures including asking questions, formulating testable hypotheses, and selecting and using equipment and technology. 197
Suggested Titles for Texas Science State Standard 8.2. (A)

8.2. (B) The student is expected to collect data by observing and measuring. 60
Suggested Titles for Texas Science State Standard 8.2. (B)

8.2. (C) The student is expected to organize, analyze, evaluate, make inferences, and predict trends from direct and indirect evidence. 201
Suggested Titles for Texas Science State Standard 8.2. (C)

8.2. (D) The student is expected to communicate valid conclusions. 11
Suggested Titles for Texas Science State Standard 8.2. (D)

8.2. (E) The student is expected to construct graphs, tables, maps, and charts using tools including computers to organize, examine, and evaluate data. 286
Suggested Titles for Texas Science State Standard 8.2. (E)

TX.112.24 (8.3) Scientific Processes: The student uses critical thinking and scientific problem solving to make informed decisions.

8.3. (A) The student is expected to analyze, review, and critique scientific explanations, including hypotheses and theories, as to their strengths and weaknesses using scientific evidence and information. 1202
Suggested Titles for Texas Science State Standard 8.3. (A)

8.3. (B) The student is expected to draw inferences based on data related to promotional materials for products and services. 348
Suggested Titles for Texas Science State Standard 8.3. (B)

8.3. (C) The student is expected to represent the natural world using models and identify their limitations. 460
Suggested Titles for Texas Science State Standard 8.3. (C)

8.3. (D) The student is expected to evaluate the impact of research on scientific thought, society, and the environment. 1228
Suggested Titles for Texas Science State Standard 8.3. (D)

8.3. (E) The student is expected to connect Grade 8 science concepts with the history of science and contributions of scientists. 389
Suggested Titles for Texas Science State Standard 8.3. (E)

TX.112.24 (8.4) Scientific Processes: The student knows how to use a variety of tools and methods to conduct science inquiry.

8.4. (A) The student is expected to collect, record, and analyze information using tools including beakers, petri dishes, meter sticks, graduated cylinders, weather instruments, hot plates, dissecting equipment, test tubes, safety goggles, spring scales, balances, microscopes, telescopes, thermometers, calculators, field equipment, computers, computer probes, water test kits, and timing devices. 214
Suggested Titles for Texas Science State Standard 8.4. (A)

8.4. (B) The student is expected to extrapolate from collected information to make predictions. 15
Suggested Titles for Texas Science State Standard 8.4. (B)

TX.112.24 (8.5) Scientific Processes: The student knows that relationships exist between science and technology.

8.5. (A) The student is expected to identify a design problem and propose a solution. 25
Suggested Titles for Texas Science State Standard 8.5. (A)

8.5. (B) The student is expected to design and test a model to solve the problem. 25
Suggested Titles for Texas Science State Standard 8.5. (B)

8.5. (C) The student is expected to evaluate the model and make recommendations for improving the model. 25
Suggested Titles for Texas Science State Standard 8.5. (C)

TX.112.24 (8.6) Science Concepts: The student knows that interdependence occurs among living systems.

8.6. (A) The student is expected to describe interactions among systems in the human organism. 56
Suggested Titles for Texas Science State Standard 8.6. (A)

8.6. (B) The student is expected to identify feedback mechanisms that maintain equilibrium of systems such as body temperature, turgor pressure, and chemical reactions. 188
Suggested Titles for Texas Science State Standard 8.6. (B)

8.6. (C) The student is expected to describe interactions within ecosystems. 93
Suggested Titles for Texas Science State Standard 8.6. (C)

TX.112.24 (8.7) Science Concepts: The student knows that there is a relationship between force and motion.

8.7. (A) The student is expected to demonstrate how unbalanced forces cause changes in the speed or direction of an object's motion. 75
Suggested Titles for Texas Science State Standard 8.7. (A)

8.7. (B) The student is expected to recognize that waves are generated and can travel through different media. 168
Suggested Titles for Texas Science State Standard 8.7. (B)

TX.112.24 (8.8) Science Concepts: The student knows that matter is composed of atoms.

8.8. (A) The student is expected to describe the structure and parts of an atom. 171
Suggested Titles for Texas Science State Standard 8.8. (A)

8.8. (B) The student is expected to identify the properties of an atom including mass and electrical charge. 172
Suggested Titles for Texas Science State Standard 8.8. (B)

TX.112.24 (8.9) Science Concepts: The student knows that substances have chemical and physical properties.

8.9. (A) The student is expected to demonstrate that substances may react chemically to form new substances. 94
Suggested Titles for Texas Science State Standard 8.9. (A)

8.9. (B) The student is expected to interpret information on the periodic table to understand that physical properties are used to group elements. 165
Suggested Titles for Texas Science State Standard 8.9. (B)

8.9. (C) The student is expected to recognize the importance of formulas and equations to express what happens in a chemical reaction. 78
Suggested Titles for Texas Science State Standard 8.9. (C)

8.9. (D) The student is expected to identify that physical and chemical properties influence the development and application of everyday materials such as cooking surfaces, insulation, adhesives, and plastics. 49
Suggested Titles for Texas Science State Standard 8.9. (D)

TX.112.24 (8.10) Science Concepts: The student knows that complex interactions occur between matter and energy.

8.10. (A) The student is expected to illustrate interactions between matter and energy including specific heat. 112
Suggested Titles for Texas Science State Standard 8.10. (A)

8.10. (B) The student is expected to describe interactions among solar, weather, and ocean systems. 196
Suggested Titles for Texas Science State Standard 8.10. (B)

8.10. (C) The student is expected to identify and demonstrate that loss or gain of heat energy occurs during exothermic and endothermic chemical reactions. 57
Suggested Titles for Texas Science State Standard 8.10. (C)

TX.112.24 (8.11) Science Concepts: The student knows that traits of species can change through generations and that the instructions for traits are contained in the genetic material of the organisms.

8.11. (A) The student is expected to identify that change in environmental conditions can affect the survival of individuals and of species. 179
Suggested Titles for Texas Science State Standard 8.11. (A)

8.11. (B) The student is expected to distinguish between inherited traits and other characteristics that result from interactions with the environment. 77
Suggested Titles for Texas Science State Standard 8.11. (B)

8.11. (C) The student is expected to make predictions about possible outcomes of various genetic combinations of inherited characteristics. 77
Suggested Titles for Texas Science State Standard 8.11. (C)

TX.112.24 (8.12) Science Concepts: The student knows that cycles exist in Earth systems.

8.12. (A) The student is expected to analyze and predict the sequence of events in the lunar and rock cycles. 15
Suggested Titles for Texas Science State Standard 8.12. (A)

8.12. (B) The student is expected to relate the role of oceans to climatic changes. 102
Suggested Titles for Texas Science State Standard 8.12. (B)

8.12. (C) The student is expected to predict the results of modifying the Earth's nitrogen, water, and carbon cycles. 41
Suggested Titles for Texas Science State Standard 8.12. (C)

TX.112.24 (8.13) Science Concepts: The student knows characteristics of the universe.

8.13. (A) The student is expected to describe characteristics of the universe such as stars and galaxies. 102
Suggested Titles for Texas Science State Standard 8.13. (A)

8.13. (B) The student is expected to explain the use of light years to describe distances in the universe. 55
Suggested Titles for Texas Science State Standard 8.13. (B)

8.13. (C) The student is expected to research and describe historical scientific theories of the origin of the universe. 87
Suggested Titles for Texas Science State Standard 8.13. (C)

TX.112.24 (8.14) Science Concepts: The student knows that natural events and human activities can alter Earth systems.

8.14. (A) The student is expected to predict land features resulting from gradual changes such as mountain building, beach erosion, land subsidence, and continental drift. 50
Suggested Titles for Texas Science State Standard 8.14. (A)

8.14. (B) The student is expected to analyze how natural or human events may have contributed to the extinction of some species. 43
Suggested Titles for Texas Science State Standard 8.14. (B)

8.14. (C) The student is expected to describe how human activities have modified soil, water, and air quality. 68
Suggested Titles for Texas Science State Standard 8.14. (C)