Grade 9 Worksheets

Learning Objectives

• Explain how eccentricity, axial tilt, and precession affect Earth’s incoming solar energy (insolation).
• Describe why Milankovitch cycles operate on timescales of tens to hundreds of thousands of years.
• Interpret how climate feedbacks and geological evidence connect orbital changes to glacial and interglacial periods.

Learning Objectives

• Differentiate ionic, covalent, and metallic bonding based on electron behavior
• Connect bond type to common observable properties such as melting point and conductivity
• Use particle-level reasoning to predict how bonding affects physical and chemical behavior

Learning Objectives

• Explain how organs are built from multiple tissue types that work together for a specific physiological role.
• Describe how organ systems coordinate with one another to maintain homeostasis.
• Use structural features of organs and tissues to predict how organisms function and respond to change.

Learning Objectives

• Identify how transitions, topic sentences, and concluding statements create coherent organization in a text.
• Analyze how comparison, cause-effect, and problem-solution structures help readers follow reasoning.
• Maintain consistent perspective and tense when planning and revising writing for clarity.

Learning Objectives

• Explain how allele frequencies change over generations through natural selection, genetic drift, mutation, and gene flow
• Distinguish among the main mechanisms of evolution and predict their likely effects on populations
• Use key vocabulary (allele, heritable trait, adaptation, population) to describe evolution accurately

Learning Objectives

• Explain how fossil records provide evidence of past life using preservation, stratigraphy, and dating methods.
• Distinguish between relative age and absolute age and describe how radiometric dating supports timelines.
• Evaluate how taphonomy and preservation bias affect what organisms appear in the fossil record.

Learning Objectives

• Explain how genetic drift changes allele frequencies due to random events rather than differences in fitness
• Differentiate genetic drift from natural selection and from gene flow
• Describe how bottlenecks and founder effects can reduce genetic diversity and lead to fixation or loss of alleles+ Show more

Learning Objectives

• Evaluate biotechnology decisions by weighing benefits, risks, and long-term societal impacts.
• Analyze ethical issues related to genetic privacy, informed consent, and equitable access to therapies.
• Explain how ecological and health risks (including unintended genome edits) influence ethical and regulatory choices.+ Show more

Learning Objectives

• Explain how transcription and translation convert DNA information into a functional protein.
• Identify the roles of key molecules involved in gene expression (RNA polymerase, mRNA, ribosome, tRNA).
• Describe how regulation at transcriptional and translational stages affects when and how much a gene is expressed.+ Show more

Learning Objectives

• Explain how equilibrium and kinetics influence which products form in a chemical process.
• Use equilibrium constants, rate ideas, and mass balance reasoning to predict and improve product distribution in a closed system.
• Describe how temperature, pressure, concentration, and catalysts can be refined to increase yield and selectivity while limiting side reactions.

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

• Describe how stars form and evolve through the main sequence and later stages based on mass
• Explain how Hertzsprung-Russell diagrams and spectral classification provide evidence for stellar properties
• Compare terminal outcomes of stellar evolution (white dwarfs, neutron stars, black holes) and connect them to nucleosynthesis

Learning Objectives

• Explain how photon energy depends on frequency using Planck’s relation.
• Relate electromagnetic wave properties (frequency, wavelength) to how signals interact with matter.
• Interpret spectral features (emission and absorption lines) and connect them to atomic energy levels.+ Show more

Learning Objectives

• Use Q = m·c·ΔT and appropriate sign conventions to calculate thermal energy transferred for temperature changes.
• Explain how conduction, convection, and radiation move heat, and identify which mechanism applies in common scenarios.
• Apply conservation of energy in closed systems by relating heat gained and heat lost across parts of a system.

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

• Explain how reproductive isolation prevents gene flow and enables speciation
• Compare allopatric and sympatric speciation models using examples
• Describe how genetic divergence, hybrid zones, and polyploidy contribute to new species

Learning Objectives

• Explain how DNA replication and meiosis help ensure hereditary information is passed from parents to offspring.
• Describe the roles of gametes and zygote formation in forming a new individual with a complete set of chromosomes.
• Use karyotype patterns and simple pedigree ratios to connect chromosome behavior with observable traits.+ Show more

Learning Objectives

• Describe key mechanisms of asexual reproduction (binary fission, budding, spore formation, and vegetative propagation).
• Explain genetic and ecological consequences of producing clones compared with sexual reproduction.
• Apply concepts to Alberta examples such as aspen root-sucker groves and horticultural propagation.

Learning Objectives

• Compare sexual and asexual reproduction in terms of genetic variation
• Identify examples of reproductive strategies found in Alberta ecosystems
• Explain ecological trade-offs between population growth and genetic diversity

Learning Objectives

• Explain how element symbols represent elements and how their capitalization affects meaning.
• Interpret chemical formulas using subscripts to determine relative numbers of atoms.
• Convert between written descriptions and formulas for common substances.

Learning Objectives

• Describe how solids, liquids, and gases differ in structure and properties (lattice arrangement, fluidity, and compressibility).
• Explain phase changes using temperature/pressure changes and energy transfer (heating and cooling).
• Use particle ideas to predict how matter behaves during freezing, melting, evaporation, condensation, and sublimation.

Learning Objectives

• Explain how resistive losses, power factor, and device selection affect electrical system efficiency.
• Use key metrics (e.g., real vs apparent power, efficiency, and loss mechanisms) to compare design options.
• Evaluate energy-saving strategies while considering real-world constraints such as infrastructure and operating requirements.

Learning Objectives

• Explain mechanical advantage as a ratio that compares input force to load force (or input distance to load distance).
• Calculate and interpret mechanical advantage for levers and pulley systems, including how they affect force and displacement.
• Describe trade-offs between force reduction and increased movement distance in common machines.+ Show more

Learning Objectives

• Identify how audience adaptation changes tone, vocabulary, and sentence structure in different communication settings.
• Select language choices that match formality expectations for classrooms, public forums, and professional meetings.
• Explain how explicitness and background knowledge influence how clearly a speaker presents information.

Learning Objectives

• Use end punctuation (period, question mark, exclamation point) correctly in different sentence types.
• Apply comma rules for introductory phrases, nonessential information, and items in a series.
• Use apostrophes for contractions and possession, and use quotation marks for direct text.+ Show more

Learning Objectives

• Explain how audience, purpose, and formality influence a writer’s word choice and tone.
• Identify how syntax and diction work together to shape meaning and style in different writing tasks.
• Revise sentences to improve precision by replacing vague generalities with specific language.+ Show more

Learning Objectives

• Identify how a central idea develops over the course of an informational text.
• Explain how specific details (examples, definitions, counterpoints, and cause-and-effect) refine or complicate understanding.
• Use textual evidence to describe when an idea is introduced, strengthened, or challenged.+ Show more

Learning Objectives

• Explain how valence electrons influence whether bonds form through transfer or sharing.
• Differentiate ionic bonding and covalent bonding using the atomic/electron model.
• Predict how bonding type can affect properties such as conductivity and melting point.

Learning Objectives

• Explain how energy is conserved during energy conversions in real systems
• Describe why some energy becomes less useful as thermal energy during conversions
• Calculate or reason about efficiency using useful output and total input energy+ Show more

Learning Objectives

• Explain momentum and how it depends on mass and velocity.
• Use conservation of total momentum to analyze collisions and explosions with internal forces.
• Differentiate elastic and inelastic collisions by comparing how kinetic energy behaves.

Learning Objectives

• Explain conservation of matter by tracking atoms in chemical reactions.
• Describe how reactants’ atoms are rearranged into new substances while atoms are conserved.
• Relate energy changes in reactions to temperature changes and heat transfer.+ Show more

Learning Objectives

• Explain how tectonic activity creates landforms that can store valuable resources over time
• Describe how erosion and sedimentation redistribute Earth materials to form basins and river deposits
• Connect weathering, soil formation, and mineral release to ecosystems and groundwater+ Show more

Learning Objectives

• Explain how energy moves through trophic levels in an ecosystem.
• Describe why available energy decreases at each step of energy transfer.
• Evaluate how changes in producers can affect the entire community.

Learning Objectives

• Explain how greenhouse gas forcing, albedo changes, aerosol effects, and land-use feedbacks influence Earth’s energy balance.
• Describe basic radiative transfer and the idea of an energy budget imbalance that leads to temperature change.
• Connect human emissions to carbon cycle perturbations and to projected climate responses.+ Show more

Learning Objectives

• Use the constant-acceleration kinematic equations to relate displacement, time, velocities, and acceleration
• Apply sign conventions correctly when analyzing vertical free-fall and horizontal/vertical components of projectile motion
• Select and rearrange the appropriate equation to predict motion from given initial conditions

Learning Objectives

• Explain how interpretations are supported by evidence using clear, cause-and-effect reasoning
• Distinguish between repeating a quotation and making an inference that connects evidence to meaning
• Identify patterns in evidence (recurring details, shifts in tone, and changes in character behavior) and use them to support a claim

Learning Objectives

• Explain how DNA, genes, and chromosomes relate to one another in cells
• Describe how genetic information is passed to offspring during cell division
• Use evidence from DNA and genes to predict how inherited traits can differ among individuals

Learning Objectives

• Explain how environmental stewardship supports long-term ecological health through conservation and sustainable policy choices.
• Identify ways geographic factors (climate, landforms, water availability) affect the success of stewardship practices.
• Evaluate how policy tools and community actions can reduce environmental risk and improve regional sustainability.

Learning Objectives

• Explain why map projections are necessary and how they convert a spherical Earth to a flat map.
• Compare common projections (e.g., Mercator and Robinson) by describing their intended uses and typical distortions.
• Analyze how projection choices affect perceived size, shape, area, and distance between places.

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 the relationship between fitness, survival, and reproduction in a specific environment
• Describe how natural selection depends on both environmental conditions and heritable traits
• Analyze how changes in environment can change which traits increase fitness+ Show more

Learning Objectives

• Explain how climate, landforms, and water availability influence where ecosystems occur in different regions.
• Analyze how ecosystems affect biodiversity, ecosystem services, and the resources available to people.
• Evaluate human impacts on forests, grasslands, and wetlands and propose conservation-focused actions for sustainable regional development.

Learning Objectives

• Explain how temperature, pressure, moisture, and wind interact to produce weather patterns
• Describe how phase changes of water vapor contribute to cloud formation and precipitation
• Analyze how heat transfer methods (radiation, conduction, convection) drive large-scale atmospheric circulation

Learning Objectives

• Differentiate climate from weather using evidence from long-term atmospheric patterns
• Explain how latitude, sunlight angle, distance from water, circulation, elevation, and winds influence temperature and precipitation
• Analyze how climate controls ecosystem distribution and surface processes

Learning Objectives

• Explain how Earth’s axial tilt and revolution around the Sun create predictable seasonal sunlight patterns.
• Describe how changes in day length and solar angle affect solar energy received in each hemisphere.
• Use Sun–Earth geometry to connect seasonal cycles to temperature and broader weather patterns.

Learning Objectives

• Explain how gravity from the Moon and Sun causes ocean tides through differences in gravitational pull across Earth.
• Describe how the geometry of the Earth–Moon–Sun system produces predictable tidal cycles over a lunar day.
• Analyze how changing alignments affect the size of tides (spring vs. neap tides).

Learning Objectives

• Explain how heat energy transfers through conduction, convection, and radiation
• Identify evidence in everyday situations that supports each heat transfer mode
• Compare and contrast conduction, convection, and radiation using key physical ideas

Learning Objectives

• Identify observable evidence that indicates a chemical reaction is forming new substances
• Explain how reaction evidence connects to atom rearrangement and bonding changes
• Distinguish chemical changes from physical changes using specific clues such as gas, precipitate, color, temperature, and odor