5.1 Scientific and engineering practices The student asks questions, identifies problems, and plans and safely conducts classroom, laboratory, and field investigations to answer questions, explain phenomena, or design solutions using appropriate tools and models. 

5.2 Scientific and engineering practices The student analyzes and interprets data to derive meaning, identify features and patterns, and discover relationships or correlations to develop evidence‐based arguments or evaluate designs 

5.5  Recurring themes and concepts The student understands that recurring themes and concepts provide a framework for making connections across disciplines 

5.1(A) Ask questions and define problems based on observations or information from texts, phenomena, models, or investigations.

5.1(B) Use scientific practices to plan and conduct descriptive and simple experimental investigations, and use engineering practices to design solutions to problems.

5.1(C) Demonstrate safe practices and the proper use of safety equipment during classroom and field investigations, following Texas Education Agency–approved safety standards.

5.1(D) Use tools—such as calculators, microscopes, hand lenses, metric rulers, Celsius thermometers, prisms, concave and convex lenses, laser pointers, mirrors, digital scales, balances, spring scales, graduated cylinders, beakers, hot plates, meter sticks, magnets, collecting nets, notebooks, timing devices, circuit-building materials, habitat observation tools (such as terrariums and aquariums), and digital tools (computers, tablets, and cameras)—to observe, measure, test, and analyze information.

5.1(E) Collect observations and measurements as evidence.

5.1(F) Construct appropriate graphic organizers to collect and display data, including tables, bar graphs, line graphs, tree maps, concept maps, Venn diagrams, flow charts or sequence maps, and input-output tables that show cause and effect.

5.2(D) Evaluate experimental and engineering designs.

5.5(A) Identify and use patterns to explain scientific phenomena or to design solutions.