demonstrate safe practices during field and laboratory investigations; and (7.1A)
make wise choices in the use and conservation of resources and the disposal or recycling of materials (7.1B).

plan and implement investigative procedures including asking questions, formulating testable hypotheses, and selecting and using equipment and technology (7.2A);
collect data by observing and measuring (7.2B);
organize, analyze, make inferences, and predict trends from direct and indirect evidence (7.2C);
communicate valid conclusions; and (7.2D)
construct simple graphs, tables, maps, and charts using tools including computers to organize, examine and evaluate data (7.2E).

analyze, review, and critique scientific explanations, including hypotheses and theories, as to their strengths and weaknesses using scientific evidence and information (7.3A);
draw inferences based on data related to promotional materials for products and services (7.3B);
represent the natural world using models and identify their limitations (7.3C);
evaluate the impact of research on scientific thought, society, and the environment; and (7.3D)
connect Grade 7 science concepts with the history of science and contributions of scientists (6.3E).

collect, analyze, and record information to explain a phenomenon 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, timing devices, magnets, and compasses; and (7.4A)
collect and analyze information to recognize patterns such as rates of change (7.4B).

describe how systems may reach an equilibrium such as when a volcano erupts (7.5A)
observe and describe the role of ecological succession in maintaining an equilibrium in an ecosystem (7.5B).

demonstrate basic relationships between force and motion using simple machines including pulleys and levers (7.6A)
demonstrate that an object will remain at rest or move at a constant speed and in a straight line if it is not being subjected to an unbalanced force (7.6B)
relate forces to basic processes in living organisms including the flow of blood and the emergence of seedlings (7.6C).

identify and demonstrate everyday examples of chemical phenomena such as rusting and tarnishing of metals and burning of wood (7.7A)
describe physical properties of elements and identify how they are used to position an element on the periodic table (7.7B)
recognize that compounds are composed of elements (7.7C)

Science Concepts.The student knows that complex interactions occur between matter and energy. The student is expected to (7.8):

illustrate examples of potential and kinetic energy in everyday life such as objects at rest, movement of geologic faults, and falling water (7.8A)
identify that radiant energy from the Sun is transferred into chemical energy through the process of photosynthesis (7.8B)

identify the systems of the human organism and describe their functions (7.9A)
describe how organisms maintain stable internal conditions while living in changing external environments (7.9B)

identify that sexual reproduction results in more diverse offspring and asexual reproduction results in more uniform offspring (7.10A)
compare traits of organisms of different species that enhance their survival and reproduction (7.10B)
distinguish between dominant and recessive traits and recognize that inherited traits of an individual are contained in genetic material (7.10C)

analyze changes in organisms such as a fever or vomiting that may result from internal stimuli (7.11A)
identify responses in organisms to external stimuli found in the environment such as the presence or absence of light (7.11B)

identify components of an ecosystem (7.12A)
observe and describe how organisms including producers, consumers, and decomposers live together in an environment and use existing resources (7.12B)
describe how different environments support different varieties of organisms (7.12C)
observe and describe the role of ecological succession in ecosystems (7.12D)

Science Concepts. The student knows components of our solar system. The student is expected to (7.13):

identify and illustrate how the tilt of the Earth on its axis as it rotates and revolves around the Sun causes changes in seasons and the length of a day (7.13A)
relate the Earth's movement and the moon's orbit to the observed cyclical phases of the moon (7.13B)

Science Concepts. The student knows that natural events and human activity can alter Earth systems. The student is expected to (7.14):

describe and predict the impact of different catastrophic events on the Earth (7.14A)
analyze effects of regional erosional deposition and weathering (7.14B)
make inferences and draw conclusions about effects of human activity on Earth's renewable, non-renewable, and inexhaustible resources (7.14C)

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