How to learn Grade 7: Science

Arizona academic standards: Science, Grade 7

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1. GEOGRAPHY

Reading Weather Maps: Read and interpret weather maps, data tables, and graphs — identifying symbols for sun, rain, wind, and temperature; spotting trends and patterns in weather data over weeks, months, or seasons; and using data to make simple predictions

Drawing conclusions from evidence (age 12+): Identify patterns and trends in data, draw conclusions that directly address the hypothesis with quantitative reference to evidence, and evaluate the investigation by distinguishing between systematic and random errors and proposing targeted improvements
Writing Science Reports: Communicate scientific findings in a structured report using appropriate scientific vocabulary, SI units, and standard notation; describe how peer review and replication contribute to the reliability of scientific knowledge
Evidence Supporting Ideas: Identify scientific evidence that has been used to support or refute ideas or arguments, evaluating the strength of evidence

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
How the Body Stays in Balance: Explain homeostasis as the process of maintaining a stable internal environment; describe the main feedback loop systems (negative feedback) using blood glucose regulation (insulin/glucagon) and body temperature as concrete examples; and connect the endocrine system (hormone-secreting glands) to the nervous system as two complementary communication systems with different speeds and durations
Cells to Organ Systems: Describe the hierarchical organisation of multicellular organisms: cells → tissues → organs → organ systems → organism
Cells Under the Microscope: Understand that all living organisms are made of cells and use a light microscope to observe, interpret, and record cell structure
Parts of Plant and Animal Cells: Describe the functions of the main components of plant and animal cells: cell wall, cell membrane, cytoplasm, nucleus, vacuole, mitochondria, ribosomes, and chloroplasts

How Tectonic Plates Move: Understand that convection currents in the molten mantle drive the movement of rigid tectonic plates; distinguish between convergent (collision/subduction), divergent (spreading ridges), and transform (sliding) plate boundaries; explain why volcanoes, earthquakes, and mountain chains cluster at boundaries; introduce the Wilson cycle of supercontinent assembly and breakup
Earth's atmosphere: Develop a model to describe ways the geosphere, biosphere, hydrosphere, and atmosphere interact as connected Earth systems

Gravity & Falling Objects: Explain that unsupported objects fall towards the Earth because of the force of gravity acting between the Earth and the falling object
Electromagnets: Describe the magnetic effect of an electric current (a current-carrying wire produces a magnetic field), and investigate how the strength of an electromagnet depends on current, number of coil turns, and core material