Grade 12 Science Worksheets

Learning Objectives

• Explain how Hess cycles use conservation of enthalpy to connect overall reaction enthalpies to sums of step enthalpies
• Apply the enthalpy state-function idea to justify why the path taken by a reaction does not change ΔH
• Reconstruct reaction energetics from formation, atomization, and ionization steps to find difficult-to-measure quantities

Learning Objectives

• Explain how reproductive isolation prevents gene flow and leads to distinct lineages over time.
• Differentiate allopatric, sympatric, and peripatric speciation using examples and key barriers.
• Analyze how genetic incompatibilities, behavior, and ecological specialization help maintain species boundaries.

Learning Objectives

• Explain how population-scale sequencing and personalized medicine use genomic data to improve health and decision-making.
• Evaluate potential benefits and risks of emerging genomic interventions, including gene drives, with attention to ethics and biosafety.
• Apply concepts of data privacy, consent, and regulatory frameworks to real-world genomic applications and impacts.

Learning Objectives

• Explain how radiometric dating uses parent and daughter isotopes to determine absolute ages.
• Describe how half-life and isotope systematics (e.g., uranium–lead, potassium–argon, carbon-14) determine what materials can be dated.
• Evaluate why closure temperature and analytical uncertainty affect whether a radiometric “clock” records formation or later events.+ Show more

Learning Objectives

• Explain uniform circular motion using centripetal acceleration and centripetal force.
• Use angular velocity and period relationships (ω, T) to analyze rotational motion.
• Distinguish centripetal (radial) and tangential acceleration in uniform vs. non-uniform rotation.+ Show more

Learning Objectives

• Describe how energy moves and changes form in real systems (combustion, buildings, and photovoltaic generation).
• Apply the laws of thermodynamics to explain conservation of energy and why useful energy decreases in transformations.
• Evaluate efficiency using energy accounting (useful output vs. total input) and relate losses to environmental impacts.

Learning Objectives

• Explain how the spatial distribution and focal depths of earthquakes reveal active tectonic settings
• Compare focal mechanisms and moment tensors to interpret fault slip styles and stress regimes
• Use seismic tomography and integrated observations (mapping + geodetic data) to infer subsurface tectonic structure

Learning Objectives

• Explain how conservation of momentum and conservation of energy apply to isolated systems
• Distinguish elastic, inelastic, and perfectly inelastic collisions using conservation laws
• Set up and solve algebraic conservation equations for initial and final states

Learning Objectives

• Explain how sensor placement, indicator selection, and network design support representative environmental monitoring.
• Describe how temporal resolution and data quality assurance improve long-term trend detection.
• Evaluate how spatial heterogeneity and anthropogenic sources affect interpretation of monitoring results.

Learning Objectives

• Explain how igneous, sedimentary, and metamorphic rocks connect through rock-cycle processes.
• Identify surface and subsurface processes that transform rocks over geologic time.
• Use rock-cycle vocabulary (weathering, erosion, deposition, burial, heat/pressure, melting, crystallization).

Learning Objectives

• Explain how elements such as carbon, nitrogen, and phosphorus move among the atmosphere, hydrosphere, lithosphere, and biosphere
• Describe the roles of weathering, biological uptake, decomposition, and sedimentation in shaping biogeochemical cycles
• Evaluate how human activities change cycle rates and reservoirs and discuss natural feedbacks+ Show more

Learning Objectives

• Explain the differences between nuclear fission and nuclear fusion and how each releases energy.
• Calculate or interpret key nuclear-energy ideas such as binding energy per nucleon and chain-reaction conditions.
• Describe reactor physics concepts including neutron economy and critical mass in the context of energy generation.+ Show more

Learning Objectives

• Explain how atomic packing and unit cell geometry relate to the properties of solids.
• Differentiate ionic, metallic, and covalent-network solids using bonding and lattice features.
• Use basic band theory ideas to describe how electronic structure affects conductivity in semiconductors.+ Show more

Learning Objectives

• Represent displacement, velocity, and acceleration using vector components in one and two dimensions
• Apply kinematic equations and parametric (time-based) position models to projectile motion
• Use vector decomposition and relative motion to interpret planar trajectories in real contexts+ Show more

Learning Objectives

• Explain the key features of simple harmonic motion (SHM), including amplitude, period, phase, and energy exchange.
• Use relationships involving mass–spring and pendulum systems to predict how period and resonance change.
• Interpret how damping affects oscillations and why resonance matters in natural and engineered systems.

Learning Objectives

• Describe the steps of a risk assessment (hazard identification, exposure assessment, consequence evaluation, and risk communication).
• Explain how governance tools (laws, regulations, permits) shape decision-making for complex socio-environmental issues.
• Evaluate how transparent evidence synthesis and multi-stakeholder trade-offs can improve public trust and decision quality.

Learning Objectives

• Connect rotational analogs of linear quantities (torque, moment of inertia, angular momentum) to real rigid-body behavior.
• Apply rotational kinematics and dynamics to relate net torque to angular acceleration and angular velocity changes.
• Analyze energy partitioning in rolling and compound systems using rotational and translational kinetic energy forms.

Learning Objectives

• Explain how enzyme kinetics and pathway control mechanisms maintain metabolic homeostasis.
• Describe how allosteric modulation and feedback inhibition stabilize metabolic flux under perturbations.
• Compare regulation at transcriptional, translational, and post-translational levels and predict physiological outcomes.

Learning Objectives

• Explain how competition, predation, parasitism, mutualism, and commensalism structure ecological communities.
• Analyze how energy flow and trophic efficiency influence food webs and biomass distribution.
• Evaluate Alberta examples to describe how interspecific interactions affect community composition, resilience, and biodiversity.

Learning Objectives

• Explain how multicellular organisms organize structure and function from cells to organ systems.
• Describe how signals (chemical and physical) coordinate activity across different levels of organization.
• Evaluate how disruptions at one level can affect growth, health, and system stability.

Learning Objectives

• Explain how convergent plate interactions produce mountain building through crustal thickening, folding, thrust faulting, magmatism, and regional metamorphism
• Differentiate tectonic outcomes of subduction-related mountain systems versus continent-continent collision mountain systems
• Use rock assemblages, metamorphic gradients, and structural patterns to interpret the timing and intensity of deformation

Learning Objectives

• Explain how mid-ocean ridges generate new oceanic crust through seafloor spreading.
• Interpret magnetic anomaly patterns as evidence of changes in Earth’s magnetic field.
• Connect radiometric ages of basalt to plate motion and the progressive formation of seafloor.+ Show more

Learning Objectives

• Compare ionic, covalent, and metallic bonding using electron behavior models.
• Predict bond polarity using electronegativity differences.
• Relate bond order and bond energy to bond length and bond strength.+ Show more

Learning Objectives

• Explain how natural selection, genetic drift, gene flow, and mutation can change allele frequencies over time.
• Use fitness differences to predict how phenotype frequencies may shift along environmental gradients.
• Interpret evidence from morphology, molecular markers, and experimental populations to support evolutionary claims.

Learning Objectives

• Explain how evolution changes allele frequencies in populations across generations
• Describe the main mechanisms of evolutionary change (natural selection, mutation, genetic drift, and gene flow)
• Use evidence such as fossils, comparative anatomy, biogeography, and molecular data to support evolutionary relationships

Learning Objectives

• Apply the law of reflection and Snell’s law to predict light paths at planar interfaces and lens surfaces.
• Use ray diagrams and focal-length relationships to determine image characteristics for thin lenses.
• Analyze real-world optical effects such as glare from snow/ice and atmospheric refraction on visibility.

Learning Objectives

• Explain how adaptations can improve fitness in one environment while creating tradeoffs in another.
• Analyze how environmental conditions (resource availability and predation pressure) influence which traits are most beneficial.
• Use examples such as camouflage and morph-frequency shifts to support claims about context-dependent fitness.

Learning Objectives

• Explain how activation energy relates to reactant energy levels and the transition state on an energy profile diagram.
• Describe how catalysts alter reaction pathways by lowering activation energy while leaving reactant-to-product energy differences unchanged.
• Interpret energy diagrams to predict changes in reaction rate using collision and transition-state ideas.

Learning Objectives

• Explain how mutations, gene regulation, and gene flow contribute to adaptive evolution.
• Describe how natural selection changes allele frequencies and can lead to measurable fitness differences.
• Connect DNA-level variation and gene expression patterns to ecological interactions and ecosystem outcomes.+ Show more

Learning Objectives

• Differentiate frequentist and Bayesian interpretations of probability in uncertainty quantification
• Use probability models for radioactive decay and epidemiological incidence to support evidence-based conclusions
• Explain how priors, likelihood, and posterior distributions combine to update beliefs

Learning Objectives

• Differentiate systematic bias, random error, and conceptual model uncertainty in scientific measurements and models.
• Interpret uncertainty representations such as confidence intervals, error bars, and qualitative uncertainty statements.
• Explain how uncertainty affects the credibility of quantitative comparisons and model-based predictions.

Learning Objectives

• Use hypothesis testing to interpret evidence strength from p-values and confidence intervals rather than relying on a single threshold.
• Evaluate regression model assumptions using residual diagnostics and identify appropriate model adjustments.
• Estimate and interpret effect sizes and practical significance in real quantitative contexts.+ Show more

Learning Objectives

• Explain how major biotechnology methods (recombinant DNA, PCR, DNA sequencing, and genome editing) work and what they enable.
• Analyze benefits and risks of biotechnology applications in medicine, agriculture, and industry.
• Evaluate ethical issues such as genetic privacy, ecological impacts, equitable access, and unintended genomic effects.

Learning Objectives

• Explain how entropy relates to the dispersal of energy and the number of accessible microstates.
• Connect Gibbs free energy (G) to spontaneity using the signs of ΔG under constant temperature and pressure.
• Interpret how temperature-dependent balance between enthalpy and entropy contributions affects spontaneity.+ Show more

Learning Objectives

• Describe the structural features of nucleic acids and how base pairing supports information storage.
• Explain DNA replication mechanisms that influence replication fidelity and inheritance.
• Connect mutation types and genome organization to how sequence changes affect heritable information flow.+ Show more

Learning Objectives

• Explain how effective nuclear charge and electron shielding influence periodic trends in atomic radius and ionization energy
• Use subshell filling to predict and rationalize anomalies in periodic trends
• Compare trends in electron affinity and ionization energy using graphs and quantitative reasoning+ Show more

Learning Objectives

• Interpret scatter plots, histograms, and residual plots using standard conventions (axes, scale, units, and trends).
• Evaluate how transformations (e.g., log scales) affect the shape of data and the form of a model.
• Assess the quality of fit qualitatively and quantitatively, including the meaning of residual patterns and uncertainty.+ Show more

Learning Objectives

• Explain how changing velocity during circular motion leads to centripetal acceleration and a net radial force.
• Use uniform circular motion relationships between speed, radius, and centripetal acceleration to solve quantitative problems.
• Apply vector decomposition and free-body representations to understand tangential vs radial acceleration, including nonuniform circular motion.

Learning Objectives

• Define linear momentum and impulse and explain why they are conserved in an isolated system.
• Use impulse–momentum and momentum conservation relationships to relate pre- and post-collision velocities.
• Distinguish elastic vs. inelastic collisions in terms of momentum conservation and energy transfer possibilities.+ Show more

Learning Objectives

• Explain how integrated modeling combines mechanistic models, quantitative analysis, and argumentation to validate predictions.
• Use uncertainty quantification to interpret confidence bounds and assess model adequacy.
• Compare model outputs to observations using cross-validation and criteria for reconciling discrepancies.

Learning Objectives

• Explain how Earth system models represent coupled processes across timescales using conceptual, numerical, and statistical approaches.
• Apply energy-balance and circulation concepts to interpret model outputs and diagrams.
• Evaluate how model resolution, parameter choices, and uncertainty affect conclusions when comparing scenarios.+ Show more

Learning Objectives

• Characterize sinusoidal wave behavior using wavelength, frequency, amplitude, and phase.
• Apply superposition and interference principles to predict resulting displacement patterns.
• Use boundary conditions to determine standing-wave modes in strings and air columns.+ Show more

Learning Objectives

• Explain how thermal gradients and the Coriolis effect create large-scale circulation patterns (Hadley, Ferrel, polar cells).
• Analyze how jet streams and planetary waves influence storm tracks and precipitation patterns across seasons.
• Use conceptual and quantitative representations (pressure maps and potential vorticity) to connect dynamics to observed weather regimes.

Learning Objectives

• Use VSEPR (valence-shell electron-pair repulsion) theory to predict molecular shape and approximate bond angles from electron-pair counts.
• Apply hybridization concepts to connect valence-shell electron arrangements to observed molecular geometries.
• Relate molecular geometry to polarity and symmetry by reasoning about bond dipoles and lone pairs.+ Show more

Learning Objectives

• Explain how evidence synthesis combines multiple lines of evidence to evaluate competing scientific hypotheses.
• Use meta-analytic reasoning and model comparison metrics to update confidence when new data disagree.
• Apply causal criteria and robustness checks to judge whether conclusions are credible.

Learning Objectives

• Explain how dimensional analysis and nondimensional parameters connect models across spatial and temporal scales
• Compare diffusion-dominated and advection-dominated transport using appropriate scaling ideas
• Interpret metabolic scaling relationships and identify when nonlinear effects emerge at different body sizes+ Show more

Learning Objectives

• Use ICE tables to set up and solve equilibrium concentration problems using the equilibrium constant expression.
• Compare reaction quotient Q to K to predict the direction of shift and interpret the sign of change.
• Apply algebraic approximations and explain when they are valid in equilibrium calculations.+ Show more

Learning Objectives

• Identify major Earth system components (atmosphere, hydrosphere, biosphere, geosphere) and describe how they exchange energy and matter.
• Use energy and mass balance concepts to connect solar input, ocean heat transport, and biogeochemical cycles.
• Explain steady-state versus transient system behavior using coupling mechanisms and characteristic timescales.+ Show more