Grade 9 Worksheets

Learning Objectives

• Understand the principle of conservation of mass during chemical reactions.
• Identify how gaseous products can affect apparent mass changes.
• Recognize external factors influencing mass measurements.+ Show more

Learning Objectives

• Identify main components of a phylogenetic tree
• Explain the significance of branching points and branch lengths
• Distinguish between monophyletic, paraphyletic, and polyphyletic groups+ Show more

Learning Objectives

• Explain why empirical evidence strengthens scientific claims.
• Distinguish observable/measurable data from opinions or beliefs.
• Describe how patterns in data support, refine, or challenge scientific interpretations.+ Show more

Learning Objectives

• Compare how different energy sources and mineral extraction methods affect the environment and society across the life cycle.
• Evaluate trade-offs among emissions, land disturbance, water use, and remediation when making resource choices.
• Use supply constraints and long-term planning to justify more sustainable regional decisions.

Learning Objectives

• Explain how genes (DNA segments) can determine protein production and influence observable traits (phenotypes).
• Describe the basic steps of gene expression: transcription and translation.
• Identify how gene regulation and environmental factors can change protein amounts or functions, leading to phenotypic variation.

Learning Objectives

• Identify and describe the basic components of an atom: protons, neutrons, and electrons.
• Understand electron configurations and energy levels.
• Explain how the periodic table groups elements by valence electrons.+ Show more

Learning Objectives

• Explain how individual forces combine to determine net force, including both magnitude and direction
• Predict the direction and presence of acceleration when forces oppose each other
• Distinguish between balanced and unbalanced forces using the net force being zero or nonzero+ Show more

Learning Objectives

• Define speciation and species using key vocabulary
• Identify reproductive isolation as a barrier to interbreeding
• Explain how geographic separation can reduce gene flow

Learning Objectives

• Explain how decision models use scenarios to compare mitigation and adaptation options over time and space.
• Evaluate trade-offs among economic, environmental, and social outcomes using cost-benefit and lifecycle ideas.
• Apply systems thinking to policy instruments such as carbon pricing, land-use planning, and infrastructure investment.

Learning Objectives

• Identify the main pathways of carbon movement in ecosystems.
• Explain how microorganisms contribute to carbon cycling.
• Analyze human impacts on the carbon cycle, such as fossil fuel combustion and deforestation.+ Show more

Learning Objectives

• Explain how disturbances (habitat loss, invasive species, and climate shifts) can change ecosystem interactions and stability
• Describe how feedback processes, recovery rates, and resilience influence whether an ecosystem returns to a prior state
• Use evidence from long-term population trends and community structure to reason about gradual versus rapid ecosystem shifts+ Show more

Learning Objectives

• Compare the four principal tissue classes (epithelial, connective, muscle, nervous) by describing key cellular and extracellular features.
• Explain how tissue structure (including extracellular matrix and specialized epithelia) relates to tissue and organ function.
• Differentiate muscle types by their contractile mechanisms and typical roles in the body.

Learning Objectives

• Identify how technology can support nursing care while still requiring clinical judgment and compassion.
• Explain why ethical responsibilities (such as confidentiality and informed explanations) matter in future healthcare.
• Describe emerging roles and skills that future nurses may need, including lifelong learning and adaptability.

Learning Objectives

• Identify dominant and recessive traits using Punnett squares
• Understand the concepts of segregation and independent assortment
• Apply probability models to predict inheritance ratios+ Show more

Learning Objectives

• Explain the rock cycle by tracing how igneous, sedimentary, and metamorphic rocks transform through melting, crystallization, erosion, compaction, and metamorphism.
• Describe how pressure and temperature conditions affect metamorphism and mineral formation.
• Use clues from radiometric ages and process rates to infer the likely sequence of events in rock histories.

Learning Objectives

• Understand the basic steps of DNA replication
• Identify key enzymes involved in DNA replication
• Describe the division of leading and lagging strands+ Show more

Learning Objectives

• Define and distinguish between models, explanations, and theories in science.
• Explain how models represent phenomena at different levels of detail.
• Understand the role of theories in scientific frameworks and their openness to revision.+ Show more

Learning Objectives

• Explain how point mutations, chromosomal rearrangements, meiotic recombination, and independent assortment create heritable genetic variation.
• Describe how recombination and mutation can change alleles, gene expression, and protein function to influence phenotype.
• Connect individual genetic changes to population-level variation and shifts in allele frequency over generations.

Learning Objectives

• Understand how kidneys regulate water and ion balance through osmoregulation.
• Identify processes such as filtration, reabsorption, secretion, and concentration in the nephron.
• Explain the role of hormones like antidiuretic hormone (ADH) and aldosterone in fluid regulation.+ Show more

Learning Objectives

• Understand and apply algebraic methods to solve linear equations.
• Interpret solutions of equations within real-world contexts such as budgeting and measurements.
• Develop problem-solving skills through multi-step reasoning and application.+ Show more

Learning Objectives

• Compare different energy and mineral resource options based on environmental and economic factors.
• Analyze the life-cycle impacts of resource extraction and use for sustainability.
• Evaluate trade-offs involved in resource management strategies within regional and long-term contexts.

Learning Objectives

• Explain how access to natural and human resources can influence regional development and economic growth.
• Analyze how infrastructure (transport, energy, and communication) affects settlement patterns and quality of life.
• Evaluate how government policies and geographic constraints can create opportunities or barriers to development.

Learning Objectives

• Describe how water, carbon, and nutrients cycle through Earth's systems.
• Explain the processes of evaporation, condensation, and precipitation in water cycling.
• Identify the interactions among atmosphere, oceans, organisms, and rocks in nutrient cycles.+ Show more

Learning Objectives

• Understand the fundamental mechanisms of evolution such as natural selection, genetic drift, mutation, and gene flow.
• Explain how these mechanisms influence allele frequencies and contribute to the diversity of populations.
• Describe the roles of mutation and gene flow in introducing new traits and transferring alleles between populations.+ Show more

Learning Objectives

• Explain Newton’s second law using the relationship between net force, mass, and acceleration.
• Use vector ideas to distinguish direction of net force from direction of acceleration.
• Differentiate mass and weight and relate each to the correct SI units and contexts.

Learning Objectives

• Define machine learning, training data, models, and patterns accurately
• Explain how training data quality affects model performance
• Identify data problems that can weaken model results+ Show more

Learning Objectives

• Explain the process of electron transport in mitochondria and chloroplasts.
• Identify the role of electron carriers and proton gradients in ATP synthesis.
• Compare mitochondrial and thylakoid electron transport mechanisms.+ Show more

Learning Objectives

• Explain how homeostasis maintains internal stability using feedback mechanisms.
• Differentiate negative feedback from other responses by describing how it reduces change.
• Identify common body examples of homeostasis (temperature, blood glucose, oxygen delivery).+ Show more

Learning Objectives

• Explain how changes in greenhouse gases can create positive and negative climate feedbacks.
• Describe how water vapor and ice/snow surface reflectivity can amplify or reduce warming.
• Analyze how clouds and atmospheric circulation affect the balance between absorbed sunlight and outgoing infrared radiation.+ Show more

Learning Objectives

• Understand the basic properties of waves: frequency, wavelength, and amplitude.
• Relate wave properties to the energy carried by the wave.
• Identify wave characteristics through reading and questions.

Learning Objectives

• Understand the concepts of endothermic and exothermic reactions.
• Identify energy absorption and release during chemical processes.
• Interpret energy diagrams related to chemical bonds.+ Show more

Learning Objectives

• Describe the physical properties of solids, liquids, and gases and connect them to particle behavior.
• Explain how temperature and pressure changes cause phase transitions between states of matter.
• Use examples from the environment to predict and justify material state changes.

Learning Objectives

• Identify key details about the structure of ATP from an informational text.
• Describe how ATP contains energy-storing phosphate groups.

Learning Objectives

• Understand the observational evidence that constrains the age and evolution of the universe.
• Identify key concepts such as redshift surveys, cosmic microwave background, and primordial abundances.
• Explain how different measurements contribute to the understanding of cosmic timescales.+ 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

• Explain how the Roman Empire expanded and maintained control over diverse regions.
• Identify key features of Roman governance, law, military organization, and infrastructure.
• Analyze factors that contributed to the decline of the Western Roman Empire.

Learning Objectives

• Explain how urbanization, deforestation, agriculture, and infrastructure alter watershed processes such as runoff, sediment transport, nutrient flux, and groundwater recharge.
• Describe how watershed changes can affect channel morphology, flood frequency, and aquatic ecosystem health.
• Use turbidity and discharge as indicators to interpret water-quality and flow changes in a watershed.

Learning Objectives

• Understand how geographic data informs regional planning decisions.
• Identify the factors influencing infrastructure development and zoning.
• Explain the importance of sustainable growth and resource management.+ Show more

Learning Objectives

• Understand the principles of information encoding using modulation and multiplexing techniques.
• Compare different encoding schemes such as pulse-code modulation and amplitude modulation.
• Analyze the impact of encoding choices on channel capacity, fidelity, and noise susceptibility.+ Show more

Learning Objectives

• Understand the role of ATP as the main energy currency in cells.
• Describe the basic processes of cellular respiration and photosynthesis.
• Identify the electron transport chains in mitochondria and chloroplasts.+ Show more

Learning Objectives

• Explain how Earth's axial tilt influences seasons
• Describe the effects of Earth's orbit on climate and daylight
• Identify the causes of lunar phases and tides+ Show more

Learning Objectives

• Explain how gravitational force depends on mass and distance.
• Describe how orbital speed and distance work together to create stable orbits.
• Use observed orbital patterns to support claims about predictable motion in space.

Learning Objectives

• Describe the particle model for solids, liquids, and gases using lattice, fluidity, and compressibility ideas.
• Explain how temperature and pressure changes cause phase transitions between states of matter.
• Interpret real-world examples (freezing, evaporation, condensation) using energy and particle motion.

Learning Objectives

• Explain how cloud computing uses remote servers to provide storage and services.
• Describe how online storage supports backups, sharing, and syncing across devices.
• Use key vocabulary accurately, including cloud computing, server, storage, and sync.

Learning Objectives

• Explain how industrialization encouraged regional economic specialization in Canada.
• Describe how resource-based industries contributed to regional identities and disparities.
• Analyze how Indigenous perspectives affect understandings of land use and economic participation.

Learning Objectives

• Explain how lithospheric plate motion creates divergent, convergent, and transform boundaries
• Describe how subduction and continental collision build features such as ocean basins and mountain ranges
• Use earthquake and volcanic patterns to infer plate interactions+ Show more

Learning Objectives

• Explain how orbital eccentricity, axial tilt, and precession change Earth’s incoming solar energy over long timescales.
• Describe how variations in insolation influence the growth and melting of ice sheets and seasonal patterns.
• Connect geological evidence (glacial and interglacial periods) to orbital forcing and climate feedbacks.

Learning Objectives

• Identify the key components of simple mechanical systems
• Understand the forces acting upon objects within these systems
• Apply basic principles of Newton’s laws to analyze motion+ Show more