Grade 9 Worksheets

Learning Objectives

• Describe transformations among igneous, sedimentary, and metamorphic rocks
• Identify melting, crystallization, erosion, compaction, and metamorphism processes
• Explain how temperature and pressure influence mineral changes during metamorphism+ Show more

Learning Objectives

• Explain how energy can be transferred by work done, thermal processes, and electromagnetic radiation.
• Connect temperature change, motion change, and absorption to specific energy transfer modes.
• Distinguish energy stored in a system from energy transferred into or out of a system.+ Show more

Learning Objectives

• Understand how wave behavior is characterized by amplitude, frequency, wavelength, and phase.
• Relate wave speed to frequency and wavelength through mathematical formulas.
• Identify examples of transverse and longitudinal waves such as string waves, sound waves, and water waves.+ Show more

Learning Objectives

• Understand different mechanisms of energy transfer, including work, thermal transfer, and radiation.
• Identify observable effects of energy transfer such as temperature change and motion.
• Differentiate between stored energy and transferred energy in various processes.+ Show more

Learning Objectives

• Evaluate the credibility and relevance of multiple sources presented in different formats (interviews, articles, graphs, and audio).
• Integrate sources by comparing evidence, identifying contradictions, and making reasoned judgments.
• Use corroboration and clear explanations to support conclusions with the strongest combination of details.

Learning Objectives

• Integrate information from multiple sources presented in different formats (text, audio explanation, graph, and interview) to form a claim.
• Evaluate the credibility and relevance of evidence by checking for assumptions, reasoning gaps, and consistency across sources.
• Resolve contradictions by comparing evidence and determining whether differences come from perspective, method, or interpretation.+ Show more

Learning Objectives

• Describe wave behavior using amplitude, frequency, wavelength, and phase.
• Use wave speed relationships (v = fλ) to solve for missing quantities.
• Explain how superposition leads to interference and how reflections can affect wave patterns.

Learning Objectives

• Identify different mechanisms of energy transfer such as work, thermal transfer, and radiation.
• Understand the mathematical relationships involved in energy transfer.
• Differentiate between stored energy and transferred energy.+ Show more

Learning Objectives

• Describe the processes involved in the rock cycle, including melting, crystallization, erosion, and metamorphism.
• Identify examples of rock transformations such as basalt formation, sandstone deposition, and schist metamorphism.
• Explain how rates, pressure-temperature conditions, and radiometric ages influence the sequencing of rock cycle events.+ Show more

Learning Objectives

• Explain how glycolysis, the citric acid (TCA) cycle, and the electron transport chain work together in cellular respiration.
• Compare aerobic and anaerobic outcomes by tracking ATP yield and redox (NADH/FADH2 vs. NAD+ re-oxidation).
• Connect pathway flux regulation (substrate availability and enzyme control) to changes in cellular energy currency.+ Show more

Learning Objectives

• Understand the mathematical representations of wave behavior including amplitude, frequency, wavelength, and phase.
• Relate wave speed to frequency and wavelength for transverse and longitudinal waves such as string waves, sound waves, and water waves.
• Explain interference and standing waves using sinusoidal functions and superposition.+ Show more

Learning Objectives

• Explain how inherited variation among individuals can affect survival and reproduction in a given environment
• Describe how differences in fitness can change the traits of a population over multiple generations
• Use key terms such as inherited traits, fitness, and adaptation to interpret natural selection in real-world examples

Learning Objectives

• Explain what a central idea is and how it guides a reader’s interpretation of supporting information.
• Identify recurring topics, key details, and patterns of elaboration that help develop a central idea.
• Distinguish primary details that directly develop a central idea from secondary details that add background or clarification.

Learning Objectives

• Evaluate the reliability of information across multiple source formats (e.g., interview, article, graph, audio).
• Integrate evidence from different sources to support a claim while addressing contradictions with reasoning and assumptions.
• Use the strongest combination of relevant details to resolve inconsistencies and form a well-supported conclusion.

Learning Objectives

• Explain how variation, inheritance, and differential survival/reproduction lead to natural selection.
• Use the idea of fitness to predict how trait frequencies may change over generations.
• Distinguish natural selection from individual “life changes” and connect it to adaptation.

Learning Objectives

• Understand the differences between analog and digital transmission methods
• Identify key tradeoffs in communication systems including bandwidth, signal-to-noise ratio, and error correction
• Analyze how modulation and coding affect signal quality and data integrity+ Show more

Learning Objectives

• Explain how inherited variation, environmental pressures, and differential survival/reproduction drive natural selection
• Use the idea of fitness to predict how traits become more or less common over generations
• Describe how populations change through time and relate adaptation to current environmental conditions

Learning Objectives

• Explain how historical atmospheric carbon dioxide records and land-use changes illustrate human impacts on the climate.
• Identify key evidence linking fossil fuel combustion, deforestation, and urbanization to climate change and ecosystem disruption.
• Analyze observed indicators such as the Keeling Curve and satellite data to understand anthropogenic effects on the biosphere and hydrosphere.

Learning Objectives

• Explain how evidence synthesis connects sources to a controlling idea through clear reasoning.
• Select and frame quotations, paraphrases, and data to support, complicate, or qualify a claim.
• Use accurate attribution to maintain scholarly integrity and a consistent line of thought.

Learning Objectives

• Understand the evidence linking human activities such as fossil fuel combustion and deforestation to climate change
• Analyze historical and satellite data indicating environmental changes over time
• Evaluate the impacts of anthropogenic change on the biosphere and hydrosphere+ Show more

Learning Objectives

• Explain how the geosphere, hydrosphere, atmosphere, and biosphere interact through matter and energy exchanges.
• Use causal chains and mass-balance thinking to describe how nutrients, gases, and productivity move between Earth systems.
• Interpret coupled phenomena (such as river nutrient transport and ocean upwelling) using cross-domain models.

Learning Objectives

• Understand the methods used to detect and measure pollution in air and water.
• Identify different indicators and patterns that reveal pollution movement.
• Explain how pollution sources and processes are linked through monitoring data.+ Show more

Learning Objectives

• Explain how fossil fuel combustion increases atmospheric carbon dioxide
• Explain how deforestation affects atmospheric carbon dioxide levels
• Interpret evidence from CO2 records, temperature trends, and satellite observations+ Show more

Learning Objectives

• Explain how biodiversity supports ecosystem stability and resilience to environmental stressors
• Analyze how changes in population sizes and species interactions can alter which organisms persist
• Evaluate how human activities can increase or reduce biodiversity through habitat change, pollution, and resource modification+ Show more

Learning Objectives

• Recognize the importance of source attribution in writing
• Identify different techniques of source integration: summary, paraphrase, and quotation
• Understand how to frame evidence with introductory context+ Show more

Learning Objectives

• Analyze trends in atmospheric carbon dioxide levels over time.
• Interpret data from historical records such as the Keeling Curve.
• Identify human activities that contribute to changes in atmospheric CO2.+ Show more

Learning Objectives

• Understand the principles of air pollution monitoring
• Identify different indicators of air quality
• Learn how pollution sources are linked to measurement data+ Show more

Learning Objectives

• Explain how genetic variation (alleles and mutations) creates differences in traits within a population.
• Describe how allele frequencies relate to the distribution of traits in the next generation.
• Analyze how natural selection changes allele frequencies over time based on survival and reproduction.+ Show more

Learning Objectives

• Identify when to use summary, paraphrase, and quotation in research-based writing.
• Explain how introductory context and analysis connect evidence to the writer’s purpose.
• Practice accurate attribution to support credibility and reduce plagiarism risk.

Learning Objectives

• Understand the key mechanisms that regulate metabolic pathways, including allosteric control and covalent modifications.
• Describe feedback inhibition and hormonal signals that shift metabolic flux between catabolism and anabolism.
• Explain how enzyme kinetics and substrate concentrations influence pathway rates and system robustness.+ Show more

Learning Objectives

• Describe the interactions among the geosphere, hydrosphere, atmosphere, and biosphere using models and diagrams.
• Explain material and energy exchanges such as nutrient transport, gas fluxes, and ocean upwelling effects.
• Use spatial schematics and causal chains to interpret coupled environmental phenomena and feedbacks.

Learning Objectives

• Explain why monitoring air and water quality matters for preventing environmental harm.
• Describe how scientists use chemical indicators, flow conditions, and spatial patterns to track pollution movement.
• Connect measurement strategies to mitigation goals such as emission reduction and improved treatment.

Learning Objectives

• Understand how allele frequencies and trait distributions change in populations over time.
• Explain the role of genetic variation, mutations, and natural selection in evolution.
• Connect individual genetic differences to broader evolutionary patterns and trait shifts.+ Show more

Learning Objectives

• Interpret evidence from atmospheric carbon dioxide records and global temperature trends to explain anthropogenic climate change.
• Describe how land-use change (deforestation, urbanization) can contribute to altered climate and ecosystem disruption.
• Analyze how changes in precipitation patterns and vegetation can affect the biosphere and hydrosphere.

Learning Objectives

• Explain how systems thinking treats an engineered design as part of a larger interacting system.
• Identify how matter, energy, and information flows connect system components and can create unintended effects.
• Use system boundaries and feedback concepts to evaluate design performance over time.

Learning Objectives

• Explain how systems thinking considers matter, energy, and information flows across interacting components.
• Identify how feedback and unintended effects can result from design changes in complex systems.
• Evaluate engineered solutions by using boundaries and long-term system behavior to meet performance targets.

Learning Objectives

• Explain how biodiversity (species and genetic variation) supports ecosystem stability
• Analyze how environmental and human factors can change population sizes and species interactions
• Evaluate how biodiversity loss or gain affects ecosystem functions like resilience and nutrient/energy cycling

Learning Objectives

• Understand the concept of systems thinking and how components interact within a system.
• Identify flows of matter, energy, and information in complex systems.
• Analyze feedback loops and unintended effects in system designs.+ Show more

Learning Objectives

• Analyze historical atmospheric carbon dioxide (CO2) trends and explain how fossil fuel combustion and deforestation increase CO2.
• Interpret evidence such as the Keeling Curve and vegetation-loss indicators to connect emissions with climate change.
• Evaluate how altered climate variables (temperature and precipitation) can disrupt ecosystems and water systems at regional to global scales.

Learning Objectives

• Explain how evidence synthesis connects research to a clear claim using reasoning.
• Distinguish between paraphrase, quotation, and data and choose each for a specific purpose.
• Write explanatory framing that shows how evidence proves, complicates, or qualifies the controlling idea.+ Show more

Learning Objectives

• Identify different types of evidence used in texts.
• Understand the purpose of quotations, paraphrases, and data.
• Learn how to synthesize evidence to support arguments.+ Show more

Learning Objectives

• Describe how a dilation scales distances from a fixed center using a scale factor
• Find the image of points under a dilation using coordinates and the scale factor
• Use dilation properties to reason about proportional segments, preserved angles, and parallel lines

Learning Objectives

• Analyze the effects of human activities such as fossil fuel combustion, deforestation, and urbanization on climate variables.
• Interpret data trends from indicators like the Keeling Curve and vegetation loss satellites.
• Evaluate evidence linking emissions to regional and global ecosystem changes.+ Show more

Learning Objectives

• Explain why impact evaluation must consider benefits, risks, tradeoffs, and unintended consequences over time.
• Identify common categories of impacts (environmental, health, resource use) and how engineers can mitigate harm.
• Use evidence-based criteria to compare alternatives and make a reasoned recommendation.

Learning Objectives

• Understand interactions among the geosphere, hydrosphere, atmosphere, and biosphere.
• Identify material and energy exchanges between Earth's spheres.
• Use conceptual models and diagrams to interpret environmental phenomena.+ Show more

Learning Objectives

• Understand the regulatory mechanisms that coordinate metabolic pathways, including allosteric control, covalent modification, and compartmentalization.
• Explain feedback inhibition and hormonal signals that shift metabolic flux between catabolism and anabolism.
• Model how enzyme kinetics and substrate concentrations influence pathway rates.+ Show more

Learning Objectives

• Identify and explain the three main modes of heat transfer: conduction, convection, and radiation.
• Understand how each mode transfers thermal energy and where it occurs in everyday life.
• Differentiate between conduction, convection, and radiation based on their characteristics.

Learning Objectives

• Understand the key regulatory mechanisms in metabolism, including allosteric enzyme control, covalent modification, and compartment-specific regulation.
• Explain feedback inhibition and the hormonal signals that influence metabolic flux between catabolism and anabolism.
• Model how enzyme kinetics and substrate concentrations affect pathway rates.+ Show more