Grade 7 Science Practice

Students explore homeostasis, negative feedback, and how body systems coordinate to maintain stable internal conditions.

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Students deepen organelle knowledge, relate structure to function, and introduce diffusion and osmosis at the cell membrane.

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Students distinguish substances and mixtures, identify chemical reaction evidence, and discuss conservation of mass.

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Students interpret rock strata, fossils, and relative age to understand Earth's long history and geologic time.

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Students apply iterative engineering design, evaluate tradeoffs, and use criteria, constraints, and test evidence to optimize solutions.

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Students relate forces to motion changes, introduce Newton's laws, inertia, and net force in everyday scenarios.

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Students explore genes, alleles, dominant and recessive inheritance, Punnett squares, and variation in populations.

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Students model matter cycling and energy flow, linking photosynthesis, respiration, food webs, and decomposers in ecosystems.

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Students explain natural selection, adaptations, and evidence from fossils, anatomy, and DNA for evolutionary relationships.

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Students deepen plate boundary processes, linking subduction, earthquakes, volcanoes, and mountain building to plate motion.

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Students develop and revise models, analyze data, and write evidence-based scientific arguments using CER and peer review.

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Students explore heat transfer methods, intro work–energy links, and field awareness (magnetic/gravitational) through examples and design applications.

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Students evaluate human impacts on ecosystems, explain ecosystem services, and design or judge solutions that protect biodiversity using clear criteria and evidence.

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Students analyze watersheds, water quality, and human water use, then evaluate management decisions using evidence from runoff, aquifers, and land-use impacts.

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Students relate wave properties to sound and light, explain reflection/absorption/transmission, and explore technology applications.

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Students use weather data to practice forecasting, distinguish weather from climate, and explain climate patterns with factors like latitude, elevation, and oceans.

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Students examine how science and technology influence society and how society shapes research and innovation.

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