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§112.20.Science, Grade 8, Adopted 2017 – The provisions of §§112.18-112.20 of this subchapter shall be implemented by school districts beginning with the 2018-2019 school year.
Science, Grade 8, Adopted 2017 – The provisions of §§112.18-112.20 of this subchapter shall be implemented by school districts beginning with the 2018-2019 school year.
(b). Knowledge and skills.
(1). Scientific investigation and reasoning. The student, for at least 40% of instructional time, conducts laboratory and field investigations following safety procedures and environmentally appropriate and ethical practices. The student is expected to:
(A). demonstrate safe practices during laboratory and field investigations as outlined in Texas Education Agency-approved safety standards
(11). Organisms and environments. The student knows that interdependence occurs among living systems and the environment and that human activities can affect these systems. The student is expected to:
(A). investigate how organisms and populations in an ecosystem depend on and may compete for biotic factors such as food and abiotic factors such as quantity of light, water, range of temperatures, or soil composition
(C). recognize human dependence on ocean systems and explain how human activities such as runoff, artificial reefs, or use of resources have modified these systems
(2). Scientific investigation and reasoning. The student uses scientific practices during laboratory and field investigations. The student is expected to:
(C). collect and record data using the International System of Units (SI). and qualitative means such as labeled drawings, writing, and graphic organizers
(3). Scientific investigation and reasoning. The student uses critical thinking, scientific reasoning, and problem solving to make informed decisions and knows the contributions of relevant scientists. The student is expected to:
(A). analyze, evaluate, and critique scientific explanations by using empirical evidence, logical reasoning, and experimental and observational testing, so as to encourage critical thinking by the student
(D). relate the impact of research on scientific thought and society, including the history of science and contributions of scientists as related to the content
(4). Scientific investigation and reasoning. The student knows how to use a variety of tools and safety equipment to conduct science inquiry. The student is expected to:
(A). use appropriate tools, including lab journals/notebooks, beakers, meter sticks, graduated cylinders, anemometers, psychrometers, hot plates, test tubes, spring scales, balances, microscopes, thermometers, calculators, computers, spectroscopes, timing devi
(B). use preventative safety equipment, including chemical splash goggles, aprons, and gloves, and be prepared to use emergency safety equipment, including an eye/face wash, a fire blanket, and a fire extinguisher
(5). Matter and energy. The student knows that matter is composed of atoms and has chemical and physical properties. The student is expected to:
(A). describe the structure of atoms, including the masses, electrical charges, and locations, of protons and neutrons in the nucleus and electrons in the electron cloud
(D). recognize that chemical formulas are used to identify substances and determine the number of atoms of each element in chemical formulas containing subscripts
(E). investigate how evidence of chemical reactions indicates that new substances with different properties are formed and how that relates to the law of conservation of mass
(C). investigate and describe applications of Newton's three laws of motion such as in vehicle restraints, sports activities, amusement park rides, Earth's tectonic activities, and rocket launches
(8). Earth and space. The student knows characteristics of the universe. The student is expected to:
(A). describe components of the universe, including stars, nebulae, and galaxies, and use models such as the Hertzsprung-Russell diagram for classification
(B). recognize that the Sun is a medium-sized star located in a spiral arm of the Milky Way galaxy and that the Sun is many thousands of times closer to Earth than any other star
(C). identify how different wavelengths of the electromagnetic spectrum such as visible light and radio waves are used to gain information about components in the universe
(C). interpret topographic maps and satellite views to identify land and erosional features and predict how these features may be reshaped by weathering