Grade 12 Science Worksheets

Learning Objectives

• Understand the analysis of AC circuits using phasor representation.
• Calculate impedance, reactance, and phase relationships in RLC networks.
• Evaluate power, real and reactive components, and power factor in AC systems.+ Show more

Learning Objectives

• Understand the ethical, legal, and social issues related to biotechnology applications.
• Analyze considerations such as biosafety, intellectual property, and ecological risks.
• Evaluate regulatory frameworks and public consultation processes shaping biotechnology deployment.+ Show more

Learning Objectives

• Understand the principles of nuclear fission and fusion and their energy yields.
• Explain chain-reaction criteria and reactor physics principles for energy production.
• Analyze applications of nuclear technology in medicine and regional energy systems.+ Show more

Learning Objectives

• Understand the principles of environmental network design, indicator selection, and data management.
• Identify criteria for representative sampling and sensor placement in environmental monitoring.
• Analyze how spatial heterogeneity and anthropogenic sources influence monitoring interpretation.+ Show more

Learning Objectives

• Explain how oscillating electric and magnetic fields transmit energy as electromagnetic waves through space and guided media
• Relate frequency and wavelength to wave behavior, including reflection and refraction at boundaries
• Analyze how attenuation and dispersion affect signal strength and bandwidth over distance+ Show more

Learning Objectives

• Interpret reaction yield as the fraction (or percent) of reactants converted into desired products under specific conditions.
• Explain how changes in conditions (e.g., temperature, concentration, surface area, catalysts) can affect reaction rate and the extent of completion.
• Connect particle-level collision behavior to macroscopic stoichiometry to predict which reactant limits yield.+ Show more

Learning Objectives

• Explain the principles of simple harmonic motion using sinusoidal models.
• Identify the relationship between amplitude, period, and resonance in oscillatory systems.
• Describe the application of oscillatory systems, such as seismographs, in monitoring natural and induced seismic activity.+ Show more

Learning Objectives

• Understand how gravitational force depends on mass and distance.
• Explain how gravity influences planetary motion and satellite trajectories.
• Model orbital motion as a form of free-fall under gravity.+ Show more

Learning Objectives

• Understand the principles of electron pair repulsion and how they determine molecular shape.
• Identify various molecular geometries based on VSEPR theory and hybridization.
• Relate bond angles and molecular shape to polarity and intermolecular forces.+ Show more

Learning Objectives

• Understand fundamental measurement units and their applications in Alberta contexts.
• Explain accuracy, precision, systematic and random errors, and traceability in measurement.
• Recognize how measurement choice and documentation impact data comparability.+ Show more

Learning Objectives

• Explain how genetic information in DNA is converted into messenger RNA through transcription
• Describe how ribosomes use mRNA codons to assemble amino acids during translation
• Connect changes in DNA sequence to potential changes in protein structure and cell function+ Show more

Learning Objectives

• Explain how Lorentz forces enable torque in electric motors.
• Describe how magnetic field gradients are used in imaging techniques like magnetic resonance.
• Summarize the principles of magnetic storage, induction sensing, and the Hall effect.+ Show more

Learning Objectives

• Explain how natural selection changes allele frequencies across generations in a population.
• Describe how heritable traits that increase fitness become more common in particular environments.
• Distinguish between directional adaptation and habitat-specific (variable) adaptation.

Learning Objectives

• Select an appropriate data visualization (scatter plot, histogram, boxplot, time series) that matches the type of question and data.
• Construct clear graphs and charts using correct axis scaling, labeling, legends, and statistically meaningful annotations.
• Interpret uncertainty and model comparisons by reading error bars, confidence intervals, and log-scale transformations accurately.

Learning Objectives

• Identify independent, dependent, and confounding variables in biological and environmental investigations.
• Select appropriate strategies to control confounding variables, including randomization and matched controls.
• Explain how blinding and replication reduce bias and improve the reliability of conclusions.+ Show more

Learning Objectives

• Identify independent and dependent measures and explain why their operational definitions matter for valid inference.
• Apply experimental design strategies such as control, replication, randomization, and blocking to reduce bias and confounding.
• Plan and justify statistical analyses (e.g., ANOVA, regression) by checking assumptions and interpreting results within valid limits.

Learning Objectives

• Explain how human resource use can change Earth systems through soil, water, air, and ecosystems.
• Analyze trade-offs between economic benefits and long-term system resilience.
• Evaluate strategies that reduce impacts and support restoration and sustainable management.

Learning Objectives

• Interpret and describe patterns in scientific data using graphs, descriptive statistics, and trend language.
• Fit and compare mathematical models using residuals and goodness-of-fit metrics while checking assumptions.
• Communicate uncertainty and limitations clearly, including how error bars and decision thresholds affect conclusions.

Learning Objectives

• Create concise, evidence-based scientific abstracts and oral openings that clearly state a testable hypothesis.
• Apply slide design norms and timing constraints to support audience understanding during oral presentations.
• Interpret and respond to data-based questions using precise technical terminology appropriate for disciplinary audiences.+ Show more

Learning Objectives

• Integrate the first and second laws of thermodynamics to analyze chemical energy changes using internal energy, enthalpy, and entropy.
• Predict reaction spontaneity and equilibrium direction using Gibbs free energy and its temperature dependence.
• Explain how energy conservation and coupled reactions influence overall energy flow in combustion and electrochemical systems.+ Show more

Learning Objectives

• Explain how radiometric dating uses parent–daughter isotope decay and half-lives to estimate absolute ages.
• Compare uranium–lead, potassium–argon, and carbon-14 dating and identify where each method is most applicable.
• Describe the role of closure temperature and analytical uncertainty when interpreting radiometric ages.+ Show more

Learning Objectives

• Explain how homologous structures, fossil patterns, and molecular comparisons provide evidence for biological evolution and common ancestry.
• Interpret how evolutionary trees represent divergence from shared ancestors using branching relationships.
• Evaluate reasoning that links observed patterns in organisms to changes over time from ancestral forms.

Learning Objectives

• Explain how Coulombic attraction and repulsion between charged particles contribute to electrostatic bonding.
• Relate electron distribution to the physical properties of materials such as melting point, solubility, and conductivity.
• Use charge-based reasoning to predict stability and structure in ionic/charged systems.

Learning Objectives

• Explain how elements (carbon, nitrogen, phosphorus) cycle through the lithosphere, hydrosphere, atmosphere, and biosphere.
• Describe how weathering, biological uptake, decomposition, and sedimentation transform nutrient reservoirs over time.
• Analyze how human activities change biogeochemical cycle rates and affect long-term concentrations through feedbacks.

Learning Objectives

• Explain how carbon and nitrogen move through environmental reservoirs using pathway and mass-balance reasoning
• Apply steady-state and reservoir-exchange-rate concepts to interpret flux measurements
• Evaluate how human activities alter carbon fluxes and nitrogen inputs and predict system-level consequences (e.g., eutrophication)

Learning Objectives

• Distinguish oxidation and reduction and identify oxidizing and reducing agents from electron transfer and oxidation state changes
• Use oxidation numbers to determine whether a species is oxidized or reduced in redox reactions
• Balance simple redox reactions using half-reaction reasoning while conserving atoms and charge

Learning Objectives

• Define linear momentum and impulse and explain how they relate to changes in motion.
• Apply conservation of momentum to isolated systems and interpret direction using vectors.
• Differentiate elastic and inelastic collisions using momentum conservation and kinetic energy outcomes.+ Show more

Learning Objectives

• Explain how natural selection, mutation, migration (gene flow), and genetic drift change allele frequencies over time.
• Use quantitative concepts such as selection coefficients and effective population size to predict evolutionary outcomes.
• Evaluate how inbreeding and population structure (including metapopulations) affect genetic diversity and conservation decisions.

Learning Objectives

• Explain how energy can be stored in electric and magnetic fields and relate it to energy density.
• Describe how work done to assemble charge or current distributions becomes field energy in circuits.
• Use energy flux ideas (Poynting vector) to connect microscopic fields to macroscopic power transfer.

Learning Objectives

• Explain how mutations create new alleles and how these alleles can be inherited across generations.
• Describe how sexual reproduction reshuffles alleles through recombination and independent assortment.
• Connect allele frequency changes in populations to micro-level genetic events and macro-level evolution.+ Show more

Learning Objectives

• Explain how genetic drift changes allele frequencies through chance events rather than selection.
• Compare bottleneck and founder events and predict their effects on genetic diversity.
• Evaluate how effective population size influences the relative impact of drift versus selection.+ Show more

Learning Objectives

• Explain how photosynthesis converts light energy into chemical energy stored in glucose and other carbohydrates.
• Describe cellular respiration as a stepwise process that releases usable energy from glucose and transfers it to ATP.
• Compare the inputs, outputs, and overall purpose of photosynthesis and respiration in living systems.+ Show more

Learning Objectives

• Explain how different mutation types (point substitutions, insertions, deletions, and chromosomal rearrangements) can change gene products.
• Predict possible consequences of mutations, ranging from silent effects to frameshifts and altered protein function.
• Describe how mutational outcomes can affect crop traits, livestock genetics, and pathogen variation in Alberta.+ Show more

Learning Objectives

• Explain dynamic chemical equilibrium in reversible reactions using reaction rates and constant concentrations.
• Apply Le Châtelier’s principle and equilibrium-constant ideas to predict shifts in equilibrium for changes in conditions.
• Use Kc or K expression reasoning to determine whether products or reactants are favored under given conditions.+ Show more

Learning Objectives

• Explain how resource availability and environmental limits shape population size and carrying capacity
• Predict how birth rate, death rate, and per-capita resources change as population approaches carrying capacity
• Use simple mathematical reasoning to connect growth assumptions to expected population outcomes

Learning Objectives

• Explain how genomic technologies are used in population-scale sequencing, personalized medicine, and gene-drive interventions
• Evaluate benefits and risks of genomic applications using biosafety, long-term environmental impact, regulation, and social equity
• Analyze ethical issues related to consent, data ownership, and privacy in genomic data use

Learning Objectives

• Explain how birth rates, death rates, immigration, and emigration affect population size over time.
• Distinguish between exponential growth and logistic growth using carrying capacity and limiting factors.
• Analyze how biotic interactions (predation, competition, mutualism, parasitism) and abiotic factors influence survival, reproduction, and community structure.+ Show more

Learning Objectives

• Explain how natural resource management choices can affect Earth systems and biodiversity
• Evaluate trade-offs between short-term human needs and long-term sustainability and resilience
• Use Earth-system concepts (water, climate, nutrient cycles, habitat) to justify resource sustainability decisions

Learning Objectives

• Explain how complex real-world engineering problems can be decomposed into smaller design subproblems while preserving system relationships.
• Identify how criteria and constraints at the top level guide choices for structure, control, materials, and logistics in an integrated solution.
• Apply decomposition reasoning to resilient infrastructure by linking load-bearing geometry, foundation stability, monitoring, and maintenance demands.

Learning Objectives

• Explain how observations, measurements, and logical reasoning support scientific claims.
• Identify how to state investigable questions and develop testable hypotheses.
• Evaluate alternative explanations using evidence, patterns, and independent checks.+ Show more

Learning Objectives

• Explain how stratigraphy and relative dating principles are used to order geologic events.
• Analyze how cross-cutting features and unconformities reveal gaps and changes in Earth’s history.
• Evaluate how fossil assemblages and succession support relative age and environmental reconstruction.

Learning Objectives

• Explain the relationship between impulse and change in momentum using vector ideas
• Use impulse as the area under a force–time graph to predict momentum change
• Compare how different force–time profiles can produce the same impulse

Learning Objectives

• Explain how incoming solar radiation is absorbed, reflected, and redistributed within Earth’s climate system.
• Analyze how latitude, seasons, and surface properties affect the energy balance at the surface and in the atmosphere.
• Use energy-balance ideas to interpret weather patterns and long-term climate tendencies.

Learning Objectives

• Describe the main layers of Earth (crust, mantle, outer core, inner core) and key differences in composition and physical state.
• Explain how seismic waves provide evidence for Earth’s internal structure and boundaries.
• Interpret how density, temperature, and mineral phase changes relate to seismic wave speed variations.

Learning Objectives

• Explain how efficiency is calculated from useful output energy (or work) and total input energy.
• Distinguish between transferred energy and energy losses (such as heat dissipation) in energy-flow models.
• Use efficiency and constraints to justify why real devices cannot convert all input energy into useful work.+ Show more

Learning Objectives

• Explain how ocean currents, upwelling, and sea surface temperatures influence regional weather and climate.
• Describe how global atmospheric circulation redistributes heat and moisture across Earth’s surface.
• Analyze feedbacks between atmospheric conditions and ocean temperatures that can amplify climate trends.+ Show more

Learning Objectives

• Compare mitosis and meiosis in terms of chromosome behavior, division steps, and resulting ploidy.
• Explain how homologous recombination (crossing over) increases genetic variation.
• Analyze how nondisjunction and chromosome segregation errors lead to aneuploidy and altered phenotypes.+ Show more

Learning Objectives

• Distinguish between London dispersion forces, dipole-dipole interactions, and hydrogen bonding
• Predict how intermolecular forces influence boiling point, melting point, surface tension, and solubility
• Connect molecular structure (polarity and hydrogen-bonding ability) to observed condensed-phase behavior+ Show more