How to learn Grade 7: Science

Oregon academic standards: Science, Grade 7

0 of 14 concepts ready to learn · Markdown, for your AI

1. Physical Science · Matter and Its Interactions

1. Reactions That Release or Absorb Heat: Distinguish between exothermic reactions (release energy, temperature rises) and endothermic reactions (absorb energy, temperature falls), with everyday and industrial examples
2. Conservation of Mass: Measure and provide evidence that the total weight of matter is conserved regardless of the type of change (heating, cooling, or mixing)
3. How Materials Change State: Explain melting, freezing, boiling, condensing, and sublimation using the particle model, interpreting heating and cooling curves to identify melting and boiling points
4. Atoms, Elements & Compounds: Explain the differences between atoms, elements, and compounds; describe the simple Bohr model of the atom (nucleus with protons and neutrons, electrons in shells); and write and interpret chemical symbols and simple formulae
5. Physical vs Chemical Changes: Distinguish between physical changes (reversible, no new substances formed) and chemical changes (new substances formed, often irreversible), using conservation of mass to understand both types

2. Life Science · Ecosystems: Interactions, Energy, and Dynamics

1. Food Webs & Interdependence: Construct and interpret food webs showing the interdependence of organisms in an ecosystem, explaining how a change in one population affects others
2. Biodiversity & Resilience: Explain what biodiversity means, why high biodiversity makes ecosystems more resilient, and describe the ways human activity threatens biodiversity (habitat destruction, pollution, invasive species, climate change)
3. Matter Cycling in Ecosystems: Develop a model to describe the movement of matter among plants, animals, decomposers, and the environment in an ecosystem

3. Life Science · From Molecules to Organisms: Structures and Processes

1. Digestion & Enzymes: Describe the organs of the human digestive system and how food is physically and chemically digested, including the role of enzymes as biological catalysts
2. Photosynthesis: Explain photosynthesis as the process by which plants use light energy to convert carbon dioxide and water into glucose and oxygen, and describe how mineral nutrients are absorbed through roots

4. Earth & Space Science · Earth and Human Activity

1. Hazard Assessment & Evacuation: Explain probabilistic hazard assessment using eruption recurrence intervals and fault slip rates; describe how volcano observatories monitor ground deformation, gas emissions, and seismicity to issue alert levels; explore why communities remain near active hazards (fertile volcanic soil, poverty, cultural ties); discuss the ethics and politics of evacuation decisions and the social justice dimensions of disaster risk

5. Earth & Space Science · Earth's Systems

1. Fossils as Evidence: Analyse and interpret data from fossils to provide evidence of organisms and environments that existed long ago
2. Earth's atmosphere: Develop a model to describe ways the geosphere, biosphere, hydrosphere, and atmosphere interact as connected Earth systems
3. The Water Cycle: Describe the water cycle, tracing water through evaporation, condensation, precipitation, surface runoff, and transpiration in plants, explaining how the sun drives the cycle