Grade 12 Science Worksheets

Learning Objectives

• Explain how scientific evidence can inform technological choices in regional STSE contexts.
• Analyze trade-offs among environmental impact, economic drivers, and social values.
• Evaluate how regulations and policy decisions influence outcomes in technology and society.+ Show more

Learning Objectives

• Distinguish galvanic (spontaneous) and electrolytic (nonspontaneous) electrochemical cells using electrode roles and redox behavior.
• Explain how standard reduction potentials and cell potential relate to overall electromotive force (emf).
• Apply conventions for anode/cathode, oxidation/reduction, and salt-bridge function to analyze real electrochemical processes.+ Show more

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 wave behavior using wavelength, frequency, amplitude, and speed for mechanical and electromagnetic waves
• Apply the wave relationships (v = λf and T = 1/f) to predict wave propagation
• Analyze how interference, refraction, and boundary conditions affect observable wave behavior+ Show more

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

• Apply the principles of relative dating (superposition, original horizontality, lateral continuity, and cross-cutting relationships) to interpret rock sequences.
• Identify and explain how unconformities represent gaps in the geological record.
• Use fossil assemblages to correlate rock strata from different locations.

Learning Objectives

• Explain laminar vs. turbulent flow and how it affects mixing and momentum transfer in natural systems
• Apply continuity and Bernoulli’s relationships to predict how pressure and velocity change in fluids
• Use dimensional analysis and scaling ideas (e.g., Reynolds number) to connect lab observations to field conditions

Learning Objectives

• Explain how mutation, natural selection, genetic drift, and gene flow change allele frequencies over time
• Use population-genetics concepts to predict how evolutionary pressures can produce adaptation and diversity
• Analyze the role of population size and environment in shaping phenotypic outcomes

Learning Objectives

• Explain how reversible reactions reach dynamic equilibrium when forward and reverse rates become equal.
• Predict how changes in concentration, pressure, and temperature affect equilibrium using Le Chatelier’s principle.
• Apply equilibrium concepts and expressions (Kc/Kp) to interpret or estimate relative concentrations.+ Show more

Learning Objectives

• Explain how dissolution, sorption, volatilization, and biodegradation affect chemical fate in soil and water.
• Compare kinetic versus equilibrium ideas to predict contaminant distribution over time.
• Apply contaminant transport concepts to plausible Alberta scenarios (agricultural runoff and spills).

Learning Objectives

• Use VSEPR electron-pair repulsion principles to predict molecular geometry and bond angles.
• Relate electron-pair arrangements and hybridization to molecular shape and steric effects.
• Predict molecular polarity and qualitative intermolecular interactions based on geometry.

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 detachment, transport, and deposition work together in erosion dynamics.
• Compare how water, ice, wind, and gravity drive landscape change.
• Analyze how climate, vegetation, and tectonic uplift influence erosion rates and sediment records.

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

• Frame rigorous senior design research questions with controllable variables and justified comparisons.
• Apply sampling strategies and uncertainty characterization appropriate for field and laboratory air/water monitoring in Alberta.
• Use instrumentation, statistical treatment, and ethical data-handling practices to support reproducible results.

Learning Objectives

• Explain how tectonic plate motion produces divergent, convergent, and transform boundaries
• Describe the major geologic features associated with each type of plate boundary (mid-ocean ridges, subduction zones, and strike-slip faults)
• Use evidence from rocks, topography, and seismic patterns to interpret past tectonic settings

Learning Objectives

• Explain radioactive decay using quantitative decay laws and half-life relationships.
• Solve basic nuclear calculation problems involving activity, decay chains, and energetics.
• Apply conservation of nucleon number and charge to balance nuclear reactions.+ Show more

Learning Objectives

• Synthesize biological, chemical, and physical evidence to form defensible scientific conclusions
• Apply multi-criteria decision frameworks to evaluate competing solutions under uncertainty
• Communicate assumptions, limitations, and confidence levels clearly in a technical argument+ Show more

Learning Objectives

• Explain how Aufbau, Pauli exclusion, and Hund’s rules determine electron configurations in atoms.
• Predict valence electrons and relate electron configuration to periodic trends and chemical behavior.
• Use oxidation state logic and bonding tendencies derived from electron configuration to interpret reactivity and physical properties.+ Show more

Learning Objectives

• Explain how the fossil record, comparative morphology, biogeography, and molecular phylogenetics provide evidence for evolution
• Use homology, transitional forms, and congruent phylogenetic trees to support conclusions about common ancestry and evolutionary history
• Evaluate how different types of data can reinforce natural selection and speciation in real-world examples

Learning Objectives

• Explain redox processes using electron transfer and oxidation number changes.
• Balance redox half-reactions using conservation of mass and charge.
• Use electrochemical concepts to interpret real-world corrosion and battery reactions.

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 the meaning of enthalpy change (ΔH) and distinguish exothermic and endothermic reactions using sign conventions.
• Calculate or interpret reaction enthalpies using ideas behind Hess’s law and standard enthalpies of formation.
• Apply calorimetry and bond-energy/thermochemical reasoning to predict heat absorbed or released and its environmental relevance.

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

• Differentiate between measured reserves and inferred resources in mineral and energy assessment.
• Explain how geological mapping, geophysical surveys, and geochemical data constrain deposit occurrence and grade.
• Analyze how extraction choices and environmental factors (water use, waste, and greenhouse gases) affect overall resource sustainability.+ Show more

Learning Objectives

• Explain how signaling pathways, transcription factors, and noncoding RNAs work together in regulatory networks
• Describe how epigenetic marks (DNA methylation and histone modifications) influence chromatin accessibility and long-term gene expression
• Apply regulatory-network concepts to real-world Alberta examples involving stress responses and immune regulation+ Show more

Learning Objectives

• Use confidence intervals and hypothesis testing to make evidence-based claims from environmental and public-health data.
• Apply error propagation concepts to interpret how measurement uncertainty affects final results.
• Evaluate how model validation and assumptions support transparent, justified scientific decisions.

Learning Objectives

• Explain how atomic radius changes across periods and down groups using electron shielding and effective nuclear charge.
• Predict and justify trends in ionization energy, electronegativity, and electron affinity based on atomic structure.
• Connect periodic trends to real-world applications such as corrosion resistance, catalysis, and soil nutrient availability.

Learning Objectives

• Explain how atomic spectra arise from quantized electronic energy transitions
• Use spectral line patterns to infer element identity and related atomic structure information
• Describe how selection rules and line broadening affect observed emission/absorption spectra+ Show more

Learning Objectives

• Represent series AC circuits using phasors to relate voltage, current, impedance, and phase angle.
• Calculate impedance components (R, X_L, X_C) and use them to determine current magnitude in AC circuits.
• Determine real power, reactive power, apparent power, and power factor for resistive–inductive–capacitive networks.+ Show more

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 how trophic relationships transfer energy through trophic levels and limit food-chain length
• Describe how keystone species and trophic cascades can reshape community structure
• Connect biogeochemical cycles to nutrient availability and ecosystem productivity+ Show more

Learning Objectives

• Explain how gene expression converts DNA information into functional proteins through transcription and translation.
• Describe how gene regulation (promoters, enhancers, transcription factors, and epigenetic modifications) affects when and where genes are expressed.
• Analyze how regulatory networks create tissue specificity and temporal patterns of protein production.+ Show more

Learning Objectives

• Identify the limiting reactant in a balanced chemical equation using stoichiometric ratios.
• Calculate theoretical yield and percent yield from reaction quantities and actual product mass.
• Explain how excess reactants and practical yield losses affect product formation in real chemical processes.

Learning Objectives

• Explain how birth, death, immigration, and emigration change population size and composition over time.
• Distinguish exponential growth from logistic growth and relate both to limiting factors and carrying capacity.
• Identify how density-dependent and density-independent factors influence birth/death rates and population outcomes.

Learning Objectives

• Explain how genetic drift changes allele frequencies through chance events, especially in small populations
• Compare bottleneck and founder events and describe how each reduces genetic diversity
• Evaluate how drift and selection differ in their effects depending on effective population size+ Show more

Learning Objectives

• Explain how stratigraphy, radiometric ages, paleomagnetism, structural relationships, and fossils work together in integrated reconstruction.
• Use multiple evidence types to build a chronological sequence of deformation, magmatism, and sedimentation.
• Justify how integrated reconstructions constrain plate-motion and paleoenvironments.

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 key measurement ideas using SI units, calibration, and instrument response.
• Distinguish precision from accuracy and identify sources of systematic versus random error.
• Interpret significant figures and traceability to measurement standards to support data quality.+ Show more

Learning Objectives

• Explain how primary productivity, decomposition, and nutrient cycling control energy flow and ecosystem turnover
• Describe how biogeochemical cycles connect organisms to the atmosphere, hydrosphere, and lithosphere
• Analyze Alberta-specific examples (peatlands, boreal fire, and agricultural soils) and how they affect ecosystem productivity and resilience

Learning Objectives

• Explain how molecular markers are used to estimate genetic diversity, inbreeding, effective population size, and gene flow in fragmented populations.
• Interpret genetic metrics (e.g., heterozygosity and genetic structure) to assess demographic and long-term extinction risk.
• Justify conservation planning decisions such as habitat corridors and translocations using conservation genetics evidence.

Learning Objectives

• Explain how London dispersion forces, dipole-dipole interactions, and hydrogen bonding arise between molecules.
• Predict how intermolecular forces affect boiling/melting points, solubility, and surface tension.
• Use molecular properties (polarity, presence of N/O/F–H) to justify which intermolecular force is strongest for a given substance.

Learning Objectives

• Explain Faraday’s law and Lenz’s law in terms of changing magnetic flux and the direction of induced emf or current.
• Use quantitative relationships to compare induced emf for different rates of flux change and transformer configurations.
• Apply electromagnetic induction concepts to real-world power systems, including generators, transformers, and safety considerations.

Learning Objectives

• Explain semi-conservative DNA replication and how parental strands template complementary new strands.
• Describe the roles of helicase, primase, and DNA polymerase in coordinating replication steps.
• Evaluate how proofreading and repair mechanisms maintain replication fidelity and reduce mutation rates.+ 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 nuclear charge, electron shielding, and subshell filling drive periodic trends
• Predict changes in atomic radius, ionization energy, and electronegativity across periods and down groups
• Use periodic trends to infer relative ionic sizes and likely bonding tendencies

Learning Objectives

• Explain how mutations, recombination, and chromosomal changes create genetic variation in populations.
• Distinguish between single-gene (Mendelian) inheritance and polygenic inheritance with gene interactions.
• Interpret how molecular mechanisms (DNA replication errors and recombination rates) influence heritable variation and trait distributions.

Learning Objectives

• Use constant-acceleration kinematic equations to relate position, velocity, acceleration, and time.
• Interpret and apply graphs and equations to predict motion with different initial conditions.
• Distinguish between average and instantaneous velocities when analyzing motion under constant acceleration.