Grade 9 Worksheets

Learning Objectives

• Identify the structure and function of mitochondria.
• Explain how mitochondria produce energy for the cell.
• Describe the internal features of mitochondria such as cristae.+ Show more

Learning Objectives

• Understand the genetic mechanisms such as mutations, chromosomal rearrangements, and recombination that generate heritable variation.
• Identify different sources of allelic diversity and how they affect phenotype and population genetics.
• Explain how molecular changes influence gene expression and protein function, leading to phenotypic variability.+ Show more

Learning Objectives

• Understand the religious significance of Easter in Christianity.
• Identify symbols and traditions associated with Easter across different cultures.
• Analyze texts and images to deepen understanding of faith-based celebrations.+ Show more

Learning Objectives

• Explain how relative motion depends on the choice of frame of reference
• Use vector ideas (speed and direction) to combine motion in different reference frames
• Distinguish between displacement and distance when comparing observed motion

Learning Objectives

• Explain how negative and positive feedback mechanisms help maintain internal conditions within narrow limits.
• Describe sensor-effector loop logic and the role of set points in feedback control.
• Compare rapid corrective responses with slower hormonal adjustments using real physiological examples.

Learning Objectives

• Analyze how individual stories from D-Day contribute to a collective legacy of courage, sacrifice, and resilience.
• Explain how remembrance practices (memorials, speeches, personal accounts) shape national identity and solidarity.
• Reflect on the human cost of war and describe ways peace can be valued and protected today.

Learning Objectives

• Identify different tissue types in organs such as the heart.
• Understand how tissue layers contribute to organ function.
• Recognize the organization of tissues within the heart.+ Show more

Learning Objectives

• Understand the functions of various organelles within eukaryotic cells.
• Identify how organelle specialization contributes to cellular efficiency and coordination.
• Describe the roles of mitochondria, ribosomes, endoplasmic reticulum, Golgi apparatus, lysosomes, and peroxisomes.+ Show more

Learning Objectives

• Explain the role of genes as DNA segments that encode proteins and regulate traits.
• Describe the processes of transcription and translation in gene expression.
• Understand how gene regulation affects phenotype and how environmental factors influence gene activity.+ Show more

Learning Objectives

• Explain how information and proteins move between the nucleus, rough endoplasmic reticulum, Golgi apparatus, and vesicles
• Describe how mitochondria, lysosomes, and peroxisomes support cellular energy, recycling, and detoxification
• Connect organelle interactions to maintaining cellular homeostasis

Learning Objectives

• Explain gas pressure using the particle model, focusing on particle collisions with container walls.
• Describe how changes in gas volume and temperature qualitatively affect pressure.
• Connect microscopic particle motion to observable gas behaviours in everyday contexts.

Learning Objectives

• Use consistent verb tenses to improve clarity and logical flow in Grade 9 narratives and explanations.
• Identify when a tense shift is appropriate (past events vs. present claims) and apply it intentionally.
• Correct tense errors involving agreement, timing, and perfect tenses (has/have/had + past participle).

Learning Objectives

• Explain major causes of industrialization from the late 19th to early 20th centuries, including technology, resources, and economic opportunities.
• Analyze how industrial growth changed communities in terms of land use, labor systems, and trade.
• Evaluate the roles of Canadian and Indigenous contributions in shaping industrial development and its effects on society and the environment.

Learning Objectives

• Understand how molecular, cellular, and organ interactions lead to physiological properties.
• Link genetic variation to cellular responses and organ system functions.
• Interpret biochemical, histological, and organ function data in health and disease.+ Show more

Learning Objectives

• Explain the semi-conservative nature of DNA replication.
• Identify the roles of enzymes such as helicase, primase, and DNA polymerase during replication.
• Describe the processes of leading and lagging strand synthesis, including Okazaki fragments.+ Show more

Learning Objectives

• Describe the steps of the Calvin cycle and their purpose in photosynthesis.
• Identify the main enzymes and molecules involved in the cycle.
• Explain how energy from ATP and NADPH is used in carbon fixation and sugar synthesis.+ Show more

Learning Objectives

• Understand the importance of conservation of atoms in chemical reactions
• Identify unbalanced atoms in chemical equations
• Learn how to balance chemical equations by adjusting coefficients+ Show more

Learning Objectives

• Define the key control criteria used to establish causality in research.
• Explain how variable isolation, replication, and baseline characterization influence causal interpretation.
• Assess the impact of residual confounding and uncontrolled variation on causal claims.+ Show more

Learning Objectives

• Explain how changes in ocean sea surface temperature and ocean heat content can influence atmospheric convection and circulation.
• Describe how ENSO-related anomalies create teleconnections that affect regional climate patterns.
• Use time-lag and energy-budget reasoning to connect ocean variability to weather and longer-term climate signals.

Learning Objectives

• Explain how reproductive isolation, geographic separation, and genetic divergence can lead to speciation
• Compare allopatric and sympatric speciation and identify real-world examples of each
• Describe how hybrid zones and polyploidy can influence the formation of new species+ Show more

Learning Objectives

• Identify components of the geosphere, hydrosphere, atmosphere, and biosphere.
• Describe interactions among Earth's spheres using conceptual models and diagrams.
• Recognize material and energy exchanges such as nutrient transport, gas fluxes, and ocean upwelling.+ Show more

Learning Objectives

• Understand how to interpret microscopy images and data.
• Identify features such as scale bars, staining patterns, and contrast techniques in images.
• Explain the differences between electron and fluorescence microscopy.+ Show more

Learning Objectives

• Understand the differences between elements, compounds, and mixtures based on their properties.
• Identify and classify substances as pure or impure, and homogeneous or heterogeneous mixtures.
• Apply symbols and formulas to represent elements and compounds accurately.+ Show more

Learning Objectives

• Understand the basic processes of diffusion and osmosis
• Identify the difference between passive and active transport
• Describe vesicular transport, including endocytosis and exocytosis+ Show more

Learning Objectives

• Understand the hierarchical relationships among cells, tissues, organs, and systems.
• Identify canonical examples of each level of organization.
• Explain how cellular specialization contributes to organ functions.+ Show more

Learning Objectives

• Understand the concept of energy changes during chemical reactions, including endothermic and exothermic processes.
• Interpret energy diagrams to relate molecular interactions to observable temperature and phase changes.
• Identify and describe the role of bond breaking and formation in energy changes.+ Show more

Learning Objectives

• Describe the main stages of stellar evolution from star formation to terminal outcomes.
• Explain the role of Hertzsprung-Russell diagrams and spectral classification in understanding stars.
• Identify differences in stellar lifecycles based on mass and other properties.+ Show more

Learning Objectives

• Analyze hydrologic data to understand water's role in landscape shaping.
• Interpret discharge records, sediment measurements, and watershed maps.
• Explain the feedbacks between runoff, sediment supply, and channel morphology.+ Show more

Learning Objectives

• Describe passive and active processes of molecular transport across membranes.
• Explain the role of various transport mechanisms in maintaining cellular homeostasis.
• Identify examples of vesicular transport such as endocytosis and exocytosis.+ Show more

Learning Objectives

• Understand the three laws formulated by Sir Isaac Newton and their applications to motion.
• Identify real-world examples illustrating Newton's laws.
• Explain how forces influence the motion of objects.+ Show more

Learning Objectives

• Use quantitative and qualitative criteria to compare competing engineering design solutions.
• Evaluate trade-offs among efficiency, durability, cost, and safety using a structured decision framework.
• Incorporate life-cycle cost, manufacturability, and environmental impact into a comparative matrix.+ Show more

Learning Objectives

• Understand how the slope of a displacement–time graph relates to velocity.
• Interpret the area under a velocity–time graph as displacement.
• Identify non-uniform acceleration patterns from curved graphs.+ Show more

Learning Objectives

• Understand the measures of dispersion such as variance, interquartile range, range, and coefficient of variation.
• Interpret how each variability metric informs confidence in data estimates.
• Relate variability measures to sampling design and heterogeneity across groups.+ Show more

Learning Objectives

• Understand the concept of molar relationships in chemical reactions.
• Apply conservation of mass to balanced chemical equations.
• Calculate reactant and product quantities using molar mass conversions.+ Show more

Learning Objectives

• Use the Remainder Theorem to find the remainder when dividing a polynomial by (x − a)
• Evaluate p(a) quickly by substitution, without performing long division
• Use remainders to solve for unknown parameters inside a polynomial

Learning Objectives

• Explain the historical significance of Juneteenth and why it is celebrated.
• Describe common Juneteenth traditions (parades, music, storytelling) and what they symbolize.
• Analyze how cultural celebrations strengthen community bonds and collective identity.

Learning Objectives

• Understand the relationship between net force, mass, and acceleration as described by Newton's second law.
• Interpret free-body diagrams to analyze forces acting on objects in motion.
• Apply vector decomposition techniques to solve problems involving force components and predict motion trajectories.+ Show more

Learning Objectives

• Identify different types of magmas and their properties
• Understand the relationship between magma viscosity, volatile content, and eruptive style
• Recognize volcanic gas emissions and their impact on climate and environment+ Show more

Learning Objectives

• Understand the historical roots of Earth Day and its significance.
• Identify key figures and pivotal moments in the environmental movement.
• Analyze how collective action influences environmental policies.+ Show more

Learning Objectives

• Understand cellular energy production mechanisms including ATP synthesis.
• Analyze the coupling of catabolic and anabolic reactions in energy transfer.
• Compare the roles of photosynthetic and respiratory electron transport chains.+ Show more

Learning Objectives

• Describe the biological hierarchy from molecules to organisms
• Explain how emergent properties appear at higher levels of organization
• Connect tissue, organ, and organ system structure to overall biological function

Learning Objectives

• Understand the key mechanisms of molecular signaling pathways that regulate gene expression and protein activity.
• Recognize how molecular perturbations affect cellular function and systemic physiology.
• Interpret examples like insulin signaling and receptor tyrosine kinase pathways in biological contexts.+ Show more

Learning Objectives

• Understand the inverse-square dependence of gravitational and electrostatic forces.
• Apply quantitative formulas to calculate the magnitude of forces between objects.
• Determine the direction of forces using vector representations.+ Show more

Learning Objectives

• Explain the significance of permafrost for northern ecosystems, infrastructure, and livelihoods.
• Identify causes and consequences of permafrost thawing, including ground subsidence and hydrological changes.
• Analyze how climate change has affected the continuity of permafrost over millennia and in recent decades.+ Show more

Learning Objectives

• Identify different reproductive strategies: sexual and asexual
• Understand how organisms reproduce via various methods
• Compare advantages and disadvantages of each reproductive mode+ Show more

Learning Objectives

• Explain how friction and aerodynamic drag oppose motion and convert mechanical energy into thermal energy.
• Describe the factors affecting friction on icy roads and gravel tracks.
• Identify the variables influencing aerodynamic drag on various structures.+ Show more

Learning Objectives

• Understand the structure and function of key organelles in eukaryotic cells.
• Identify the role of mitochondria in energy production.
• Explain how different organelles work together to maintain cellular function.

Learning Objectives

• Understand how the slope of displacement-time, velocity-time graphs relates to physical motion parameters.
• Interpret the area under a velocity-time graph to determine displacement.
• Identify curved graphs indicating non-uniform acceleration and understand their physical causes.+ Show more