Grade 9 Worksheets

Learning Objectives

• Explain how carbon, nitrogen, and phosphorus cycle through ecosystems using reservoirs and fluxes.
• Describe microbial decomposition processes and how they affect nutrient availability and primary productivity.
• Use mass-balance reasoning to predict how changes in nutrient inputs and cycling rates can alter long-term ecosystem outcomes.+ Show more

Learning Objectives

• Analyze reproductive strategies and their impacts on genetic diversity.
• Trace inheritance mechanisms through chromosomes and Mendelian patterns.
• Evaluate the ecological and societal implications of breeding technologies.+ Show more

Learning Objectives

• Explain how net force (vector sum of forces) determines the direction and magnitude of acceleration.
• Distinguish between balanced forces (net force = 0) and unbalanced forces (net force ≠ 0).
• Resolve forces into components and calculate net force using vector addition.+ Show more

Learning Objectives

• Explain how cells, tissues, organs, and organ systems relate in a hierarchy of biological organization
• Use examples (epithelial linings, muscle tissue, and organ assemblies) to describe how specialization leads to organ-level functions
• Describe how arrangement at the tissue and organ levels supports physiological capacity and constraints

Learning Objectives

• Understand the basic variables involved in motion equations
• Identify and interpret key components of constant-acceleration equations
• Apply algebraic methods to solve motion problems+ Show more

Learning Objectives

• Understand the components and relationships within ecosystems
• Identify factors that cause ecosystem changes
• Explain how ecosystems recover from disturbances+ Show more

Learning Objectives

• Differentiate between sexual and asexual reproduction in terms of genetic outcomes and parent involvement
• Explain how reproductive strategies affect genetic diversity and population change over time
• Apply Alberta examples to identify whether a reproductive mode is primarily sexual or asexual

Learning Objectives

• Explain how promoters, enhancers, silencers, and transcription factors control gene transcription.
• Describe how epigenetic modifications (DNA methylation and histone acetylation) change chromatin accessibility.
• Analyze how regulatory networks and feedback loops fine-tune gene expression in response to signals.

Learning Objectives

• Identify and describe the different types of chemical reactions: synthesis, decomposition, single displacement, double displacement, and combustion.
• Recognize practical examples and observable outcomes of each reaction type.
• Understand how reaction patterns relate to reactant-product relationships and conservation of mass.+ Show more

Learning Objectives

• Understand the mathematical formulation of Newton's second law and its vector form.
• Differentiate between mass and weight and their roles in force and acceleration.
• Apply Newton's second law to analyze systems involving multiple forces and accelerations.+ Show more

Learning Objectives

• Understand and describe how materials appear and behave under ordinary conditions.
• Identify different observable properties such as colour, texture, density, and solubility.
• Use vocabulary related to observable material properties to classify and compare substances.+ Show more

Learning Objectives

• Describe the structure and function of the heart, including its valves and chambers.
• Explain the hierarchy of blood vessels and their roles in circulation.
• Understand haemodynamics, including blood flow and vascular resistance.+ Show more

Learning Objectives

• Interpret resource trends using indicators such as extraction rates, groundwater levels, and land-use changes.
• Evaluate the consequences of resource depletion, including subsidence and soil erosion.
• Assess sustainability implications through dataset comparisons and ratio-based measures.+ Show more

Learning Objectives

• Define the criteria for establishing control and comparability in causal inference.
• Understand how variable isolation, replication, baseline characterization, and reference conditions influence causal claims.
• Explain how residual confounding and uncontrolled variation affect the strength of causal inferences.+ Show more

Learning Objectives

• Describe the key steps and intermediates involved in glycolysis.
• Explain the net energy gain from glycolysis, including ATP and NADH production.
• Differentiate between aerobic and anaerobic pathways following glycolysis.+ Show more

Learning Objectives

• Analyze how memorials use symbols and messages to support remembrance and healing after 9/11.
• Interpret resilience stories from survivors and responders and connect them to themes of bravery, sacrifice, and hope.
• Evaluate how public memorials shape collective mourning and shared historical awareness.

Learning Objectives

• Understand how energy moves through ecosystems from producers to consumers and decomposers.
• Describe the process of photosynthesis and how energy is transferred trophically.
• Explain the concept of energy transfer efficiency and its impact on food chain length.+ Show more

Learning Objectives

• Explain the components of atomic structure, including protons, neutrons, and electrons.
• Understand how atomic number and mass number define isotopes and element identity.
• Describe simple models of nuclei and electron shells to explain chemical behavior.+ Show more

Learning Objectives

• Compare the particle models of solids, liquids, and gases based on shape, volume, and particle motion.
• Explain phase changes (melting, freezing, evaporation, condensation, and deposition) using energy changes and particle behavior.
• Predict how temperature and pressure changes can influence the state of matter in real-world examples.

Learning Objectives

• Distinguish technical meanings from everyday meanings using contextual clues.
• Identify definitions, comparisons, and related terminology that signal how a word is used in a text.
• Explain how precise word meanings improve comprehension and accurate summarizing.

Learning Objectives

• Understand how wind energy contributes to renewable power sources.
• Identify concepts related to grid balancing with intermittent energy sources.
• Explain the environmental and economic impacts of renewable energy integration.

Learning Objectives

• Identify when a word is being used with a technical meaning rather than an everyday meaning
• Use contextual clues (definitions, comparisons, and related terminology) to determine technical meanings
• Explain how choosing the correct technical meaning improves the clarity of arguments and summaries

Learning Objectives

• Analyze how word choice, formality, and certainty affect tone and reader expectations.
• Revise vague sentences by replacing imprecise wording with specific verbs, nouns, and modifiers.
• Evaluate how diction and language precision change meaning in formal and informal contexts.

Learning Objectives

• Identify cause-and-effect relationships within texts
• Differentiate between cause and effect statements
• Analyze how cause-and-effect language builds meaning in informational passages+ Show more

Learning Objectives

• Explain speciation as the splitting of one ancestral population into distinct species.
• Compare allopatric and sympatric speciation and identify how gene flow changes in each.
• Distinguish prezygotic and postzygotic reproductive barriers and give examples of each.

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

• Identify major parts of a phylogenetic tree.
• Interpret what branching patterns suggest about common ancestry.
• Use vocabulary such as rooted, unrooted, ancestor, descendants, and clade to explain tree features.

Learning Objectives

• Identify how sequence and perspective shape narrative meaning
• Explain how concrete details support narrative clarity
• Distinguish narrative language from reflective language+ Show more

Learning Objectives

• Explain the concept of relative motion and how it depends on the chosen frame of reference.
• Identify examples of relative motion in regional transport and recreation scenarios.
• Understand how velocities combine vectorially and how reference frames affect observed motion.+ Show more

Learning Objectives

• Understand the diagnostic physical and chemical properties of common rock-forming minerals.
• Explain how mineral composition relates to formation environment and stability.
• Connect mineral assemblages to petrogenetic histories and economic significance.+ Show more

Learning Objectives

• Compare physical and chemical changes by describing how energy transfer relates to what happens to particles and bonds.
• Explain endothermic and exothermic processes using the direction of energy flow and the resulting temperature changes.
• Use system–surroundings thinking to predict whether energy is absorbed or released during a change.

Learning Objectives

• Understand how to construct phylogenetic trees based on morphological and molecular data.
• Interpret branching diagrams to identify evolutionary relationships and common ancestors.
• Apply cladistic principles such as shared derived characters to classify organisms.+ Show more

Learning Objectives

• Explain how Earth’s axial tilt affects the angle of sunlight and seasonal conditions in each hemisphere.
• Describe how Earth’s orbit around the Sun changes day length and sunlight duration over the year.
• Connect Sun–Earth geometry to seasonal temperature patterns and broader environmental changes.+ Show more

Learning Objectives

• Explain how strategic transitions connect ideas within and across paragraphs to improve coherence.
• Identify whether a transition is additive, contrastive, causal, or sequential based on context.
• Revise sentences by replacing generic transitions with more precise ones that match the relationship between ideas.+ Show more

Learning Objectives

• Describe and calculate kinetic energy and gravitational potential energy using appropriate formulas and units.
• Use energy accounting to explain how work, power, and mechanical energy change in near-ideal systems.
• Analyze how non-conservative forces (such as friction) affect the mechanical energy budget and motion.

Learning Objectives

• Understand how ecosystems respond to disturbances such as fire, floods, and succession.
• Analyze the causes and consequences of altered disturbance regimes.
• Evaluate human impacts on natural recovery processes and resource cycles.+ Show more

Learning Objectives

• Explain the concept of work in physics and how it relates to energy transfer.
• Identify situations where work is positive, negative, or zero.
• Describe the relationship between work, force, and displacement.+ Show more

Learning Objectives

• Define synthesis and distinguish it from simply summarizing or listing quotations.
• Use multiple pieces of evidence to explain a central idea and the way the evidence works together.
• Qualify claims by accounting for nuance, such as when evidence confirms, limits, or shifts emphasis.

Learning Objectives

• Explain the particle model as a framework for understanding states of matter, diffusion, and temperature-dependent behavior.
• Describe how particle motion, spacing, and forces determine the properties and phases of matter.
• Relate kinetic energy to temperature and explain how particle interactions influence phase stability and response to energy changes.+ Show more

Learning Objectives

• Explain the particle model as a framework for understanding states of matter and particle motion.
• Describe how particle arrangement and forces influence phase stability and behavior.
• Relate temperature changes to particle kinetic energy and movement.+ Show more

Learning Objectives

• Explain the particle model as a framework for understanding states of matter and diffusion.
• Describe how particle motion and spacing relate to temperature and phase.
• Link microscopic particle behaviour to macroscopic phenomena such as gas pressure and diffusion rates.+ Show more

Learning Objectives

• Explain the processes involved in the carbon cycle within ecosystems.
• Identify key pathways of nutrient cycling such as microbial decomposition, fixation, mineralization, and sedimentation.
• Understand human impacts on nutrient cycles, including fertilizer runoff and eutrophication.+ Show more

Learning Objectives

• Understand different prototyping methods and their appropriate use cases.
• Identify materials and fidelity levels suitable for various prototype types.
• Learn how to measure performance metrics and refine prototypes iteratively.+ Show more

Learning Objectives

• Differentiate weather from climate using clear definitions and examples.
• Explain how Earth’s energy balance and greenhouse gases can influence long-term temperature and precipitation patterns.
• Describe how natural records (ice cores and ocean sediments) provide evidence of past climate changes.+ Show more

Learning Objectives

• Understand how earthquake risks are evaluated using historical and probabilistic methods.
• Identify key factors influencing earthquake hazard assessments, including occurrence, frequency, and impact.
• Analyze how hazard data and mapping inform community preparedness and mitigation strategies.+ Show more

Learning Objectives

• Explain the three laws of motion proposed by Sir Isaac Newton.
• Identify real-world examples that illustrate each of Newton's laws.
• Predict the motion of objects when forces act upon them based on Newton's principles.+ Show more

Learning Objectives

• Describe chemical properties as tendencies to undergo specific chemical changes.
• Identify evidence of chemical change, such as new substances, gas evolution, precipitate formation, and permanent colour change.
• Distinguish chemical changes from physical changes using reaction observations and product evidence.

Learning Objectives

• Identify different types of chemical reactions
• Understand the process of chemical transformation and energy exchange
• Recognize examples of reactions in daily life