TEKS: Chapter 112. Science See All Teacher Resources

112.39.c.2

(2) Scientific processes. The student uses a systematic approach to answer scientific laboratory and field investigative questions. The student is expected to:

• (A) know the definition of science and understand that it has limitations, as specified in subsection (b)(2) of this section; 
• (B) know that scientific hypotheses are tentative and testable statements that must be capable
  of being supported or not supported by observational evidence ; 
• (C) know that scientific theories are based on natural and physical phenomena and are capable of being tested by multiple independent researchers. Unlike hypotheses, scientific theories are well established and highly reliable explanations, but may be subject to change ; 
• (D) design and implement investigative procedures, including making observations, asking well defined questions, formulating testable , identifying variables, selecting appropriate equipment and technology, evaluating numerical answers for reasonableness , and identifying causes and effects of uncertainties in measured data ; 
• (E) demonstrate the use of course apparatus, equipment, techniques, and procedures,
  including multimeters (current, voltage, resistance), balances, batteries,
  dynamics demonstration equipment, collision apparatus, lab masses, magnets, plane mirrors, convex lenses, stopwatches, trajectory apparatus, graph paper, magnetic compasses, protractors, metric rulers, spring scales, thermometers, slinky springs, and/or other equipment and materials that will produce the same results ; 
• (F) use a wide variety of additional course apparatus, equipment, techniques, materials, and procedures as appropriate such as ripple tank with wave generator, wave motion rope, tuning forks, hand-held visual spectroscopes, discharge tubes with power supply (H, He, Ne, Ar), electromagnetic spectrum charts, laser pointers, micrometer, caliper, computer, data acquisition probes, scientific calculators, graphing technology, electrostatic kits, electroscope, inclined plane, optics bench, optics kit, polarized film, prisms, pulley with table clamp, motion detectors, photogates, friction blocks, ballistic carts or equivalent, resonance tube, stroboscope, resistors, copper wire, switches, iron filings, and/or other equipment and materials that will produce the same results ; 
• (G) make measurements with accuracy and precision and record data using scientific notation and International System (SI) units; 
• (H) organize, evaluate, and make inferences from data, including the use of tables, charts, and graphs; 
• (I) communicate valid conclusions supported by the data through various methods such as lab reports, labeled drawings, graphic organizers, journals, summaries, oral reports, and technology-based reports; and 
• (J) express relationships among physical variables quantitatively, including the use of graphs, charts, and equations.