Grade 9 Worksheets

Learning Objectives

• Interpret P-wave and S-wave arrival times to determine relative event characteristics and estimate travel-time patterns.
• Use earthquake waveforms and frequency/amplitude features to infer differences between shallow and deep events.
• Connect epicenter maps and seismicity patterns to tectonic environments and surface hazard risks.

Learning Objectives

• Explain the purpose of the Calvin cycle in carbon fixation during photosynthesis
• Describe how ATP and NADPH are used to drive reduction and regeneration steps
• Identify key inputs, outputs, and enzyme involvement in the light-independent reactions

Learning Objectives

• Understand the properties of waves—frequency, wavelength, and amplitude—and how they relate to wave energy.
• Explain how wave properties influence observable wave behavior.
• Identify the links between wave properties and the energy transferred by waves.

Learning Objectives

• Explain how Newton’s laws relate forces to changes in motion (inertia, force–acceleration, and action–reaction).
• Use Newtonian reasoning to predict how real objects move in common situations such as snowplows, recoil mechanisms, and anchored structures.
• Interpret motion patterns in regional contexts (e.g., erosion control and playground apparatus) using cause-and-effect physics principles.

Learning Objectives

• Understand the differences between mean, median, and mode and their appropriate use cases.
• Explain how skewness, outliers, and multimodal distributions influence the choice of a measure of central tendency.
• Connect the selection of a central tendency to assumptions about data distribution and underlying processes.+ Show more

Learning Objectives

• Understand the differences between ionic lattices, covalent networks, and molecular solids.
• Analyze how particle arrangement affects properties like melting point and electrical conductivity.
• Interpret observations of material properties to infer lattice organization and interparticle forces.+ Show more

Learning Objectives

• Use indicators (extraction rates, groundwater levels, and land-use change metrics) to describe human impacts on Earth systems.
• Interpret resource trends while accounting for natural variability and possible system thresholds.
• Explain how resource pressures can lead to consequences such as subsidence, soil erosion, and altered sediment budgets.

Learning Objectives

• Evaluate how urbanization, deforestation, agriculture, and infrastructure change watershed processes such as runoff, sediment load, nutrient fluxes, and groundwater recharge.
• Explain how watershed alterations affect channel morphology, flood frequency, and aquatic ecosystem health.
• Use measurement indicators (turbidity, discharge) to describe changes in watershed function.+ Show more

Learning Objectives

• Identify conservation actions that protect bees and support biodiversity
• Explain how habitat loss and pesticide use affect pollinators and ecosystems
• Describe how individuals, communities, and policies can work together to strengthen conservation

Learning Objectives

• Explain the difference between weather and climate and why long-term patterns matter
• Describe how latitude, elevation, and proximity to water influence regional climate zones
• Interpret how climate patterns affect ecosystems and human activities such as agriculture and settlement+ Show more

Learning Objectives

• Explain how P-wave and S-wave evidence is used to infer Earth’s layered internal structure.
• Use ideas about density contrasts and heat-flow to justify where the crust, mantle, and core are located.
• Describe how mantle convection and thermal energy transfer drive long-term changes in Earth’s interior and surface.

Learning Objectives

• Interpret speed-time and distance-time data to infer acceleration and its direction.
• Use changes in speed over equal time intervals to determine whether acceleration is roughly constant or changing.
• Explain how the shape or slope of data curves relates to acceleration.

Learning Objectives

• Explain how DNA replication and meiosis support the continuity of hereditary information across generations
• Describe the roles of gametes and zygotes in forming a new organism
• Connect molecular fidelity and DNA replication errors to observable inheritance patterns+ Show more

Learning Objectives

• Understand the concept of limiting reactants and how they determine maximum product formation.
• Calculate theoretical yield using molar ratios and molar masses.
• Differentiate between actual yield and theoretical yield and compute percent yield.+ Show more

Learning Objectives

• Explain how genetic drift changes allele frequencies through chance events, especially in small populations
• Identify how bottlenecks and founder effects can reduce genetic diversity and alter evolutionary outcomes
• Compare the roles of genetic drift, natural selection, and gene flow in shaping allele frequencies

Learning Objectives

• Explain why chemical equations must be balanced to conserve atoms and mass
• Interpret balanced equations as particle-level ratios represented by coefficients
• Use reactant and product formulas to identify which substances are consumed and produced

Learning Objectives

• Identify common types of malware such as viruses, spyware, and ransomware.
• Apply safe-device habits to reduce the risk of malware infection.
• Use correct cybersecurity vocabulary when describing protection strategies.

Learning Objectives

• Define cloud computing using remote servers and online services
• Explain how online storage keeps files available across devices
• Describe how synchronization maintains consistent file versions+ Show more

Learning Objectives

• Explain how phylogenetic trees represent hypothesized evolutionary relationships using branching patterns and common ancestors.
• Differentiate monophyletic, paraphyletic, and polyphyletic groups and predict what each implies about sampling.
• Interpret rooted vs. unrooted trees and describe how characters (including synapomorphies) help determine tree topology.

Learning Objectives

• Explain how balanced chemical equations and mole ratios connect reactant amounts to product amounts.
• Use molar mass to convert between mass (grams) and amount of substance (moles).
• Apply conservation of mass reasoning to interpret why atoms are conserved in chemical reactions.

Learning Objectives

• Explain the relative positions needed for solar and lunar eclipses.
• Describe how orbital inclination limits eclipse frequency and helps predict eclipse paths.
• Use eclipse geometry to compare shadow direction and the visibility of totality.

Learning Objectives

• Explain how punctuation (end marks, commas, colons, semicolons, and dashes) clarifies meaning and tone.
• Identify and revise common punctuation errors, including run-ons and missing/incorrect commas.
• Use punctuation to support reader understanding of sentence boundaries and relationships between clauses.

Learning Objectives

• Identify the functions of key cell organelles involved in genetic information flow and protein trafficking.
• Understand how different organelles coordinate to maintain cellular homeostasis.
• Explain the roles of mitochondria, lysosomes, and peroxisomes in energy production and recycling processes.+ Show more

Learning Objectives

• Identify how language choices (repetition, contrast, and structure) create effects in a text.
• Evaluate whether statements about purposeful writing are true or false based on the passage.
• Select the best answer that explains how sentence patterns shape meaning and tone.+ Show more

Learning Objectives

• Explain how explanatory models connect observable evidence to causal mechanisms within defined limits.
• Identify ways scientists refine models by adjusting assumptions, updating parameters, and revising relationships.
• Evaluate how new evidence changes a model and improves agreement with observations.+ Show more

Learning Objectives

• Explain major sources of genetic variation, including mutation, recombination during meiosis, gene flow, and chromosomal rearrangements.
• Describe how different mechanisms can increase or decrease genetic diversity in populations.
• Use real-world examples to predict how genetic variation affects evolutionary change and responses to environmental pressures.

Learning Objectives

• Identify and contrast static and kinetic friction, including how each relates to surface properties and normal force
• Explain how fluid drag depends on velocity, cross-sectional area, and medium density, including low-speed (linear) vs high-speed (quadratic) regimes
• Use coefficients of friction and resistive-force ideas to describe net force and energy dissipation in real situations

Learning Objectives

• Explain how Earth’s magnetic field originates and why it behaves like a giant dipole
• Describe how magnetic declination and dip affect navigation, mapping, and compass readings in real regions
• Interpret how auroras and ionospheric phenomena relate to charged particles and Earth’s magnetic environment+ Show more

Learning Objectives

• Identify key factors that contribute to regional development, including resources, infrastructure, and policy.
• Explain how geographic constraints and opportunities influence economic growth and settlement patterns.
• Evaluate how infrastructure and governance affect quality of life in different regions.

Learning Objectives

• Understand how the circulatory and respiratory systems work together to supply oxygen and remove carbon dioxide.
• Analyze the feedback mechanisms involved in homeostasis, such as thermoregulation and acid-base balance.
• Describe how neural and endocrine responses coordinate to maintain internal stability during activity and stress.

Learning Objectives

• Describe how atmospheric forcing influences geomorphic change and soil development.
• Identify and explain key surface process mechanisms such as chemical weathering, mass wasting, and sediment transport.
• Analyze examples of surface modification including alluvial fan formation and coastal erosion.+ Show more

Learning Objectives

• Identify common sources of systematic and random error, including instrument bias, sampling limitations, confounding, and model mis-specification.
• Use evidence such as cross-method comparisons and residual patterns to detect potential bias or model problems.
• Explain how sensitivity analyses and quantified uncertainty affect the robustness of conclusions and the comparison of alternative explanations.

Learning Objectives

• Understand the concept of mathematical models in scientific systems
• Learn how to formulate basic algebraic models for real-world scenarios
• Develop skills to interpret and analyze models' outputs+ Show more

Learning Objectives

• Explain how the particulate model describes solids, liquids, and gases using particle motion and spacing
• Use particle ideas to predict changes in diffusion, pressure, and temperature
• Identify how particle collisions relate to energy transfer and pressure

Learning Objectives

• Analyze how changes in viewpoint (narration, focalization, and character interpretation) reshape meaning in a text.
• Compare two perspectives on the same event to support a nuanced claim about theme or author intent.
• Use perspective-related evidence (what a character knows, notices, or assumes) to explain changes in interpretation over time.

Learning Objectives

• Use connecting words and phrases to show addition, contrast, cause, and sequence in writing.
• Maintain consistent referents for nouns and pronouns to improve clarity.
• Strengthen coherence by matching sentence beginnings and endings to reduce abrupt shifts.

Learning Objectives

• Understand the key components involved in navigating health care systems.
• Identify proper procedures for appointment scheduling, referrals, and insurance claims.
• Recognize the importance of system literacy in improving health outcomes.+ Show more

Learning Objectives

• Differentiate physical changes from chemical changes using observable evidence such as color, temperature, texture, and product formation
• Identify physical properties and chemical properties of matter and explain how they relate to observed behavior
• Predict whether a described process is likely physical or chemical based on evidence and particle-level reasoning+ Show more

Learning Objectives

• Understand the hierarchical structure and purposes of biological classification systems.
• Identify shared traits and evolutionary relationships used in classifying organisms.
• Differentiate between traditional taxonomy and modern phylogenetic approaches.+ Show more

Learning Objectives

• Identify the key resource-based industries that contributed to regional economic development in Canada.
• Understand the impact of forestry on regional identities and economic growth.
• Analyze the effects of industrialization on land use and Indigenous participation in regional economies.+ Show more

Learning Objectives

• Understand the concept of similar figures and their properties.
• Apply ratio and proportion techniques to solve real-world problems.
• Use scale factors to determine lengths and measurements in similar figures.+ Show more

Learning Objectives

• Explain how nucleic acid sequences can encode amino acid sequences and lead to specific protein structures.
• Describe how protein structure relates to cellular architecture and function in ribosomes, endoplasmic reticulum, and mitochondria.
• Use evidence to connect macromolecular structure to mechanical and catalytic roles in specialized cells.

Learning Objectives

• Explain the three main ideas of cell theory and how they connect to living organisms
• Compare unicellular and multicellular organization in terms of structure and function
• Distinguish prokaryotic and eukaryotic cell features and relate structure to function+ Show more

Learning Objectives

• Describe the nature and effects of static and kinetic friction.
• Explain how surface properties and normal force influence friction.
• Analyze real-world examples of friction's role in motion and energy transfer.+ Show more

Learning Objectives

• Understand the fundamental principles of scaling laws and dimensional similarity.
• Apply proportional reasoning to construct models and interpret data across different scales.
• Analyze how nonlinearity and scale-dependent effects influence predictions in scientific models.+ Show more

Learning Objectives

• Explain how uncertainty can be displayed on graphs using error bars, uncertainty bands, and annotated ranges in tables.
• Interpret whether differences between conditions are meaningful by comparing overlaps (or lack of overlap) in uncertainty.
• Use uncertainty reasoning to support or question conclusions about trends in scientific data.

Learning Objectives

• Understand the various types of evidence supporting evolution
• Analyze fossil records and their significance in tracing evolutionary history
• Compare anatomical features across species to identify homologies+ Show more

Learning Objectives

• Explain how neurons and synapses transmit information using action potentials and neurotransmitters
• Describe how myelination and neural circuit organization affect conduction velocity and information processing
• Compare roles of reflex arcs and autonomic pathways in maintaining coordinated organ function