Grade 12 Science Worksheets

Learning Objectives

• Explain how photon energy, work function, and emitted electron kinetic energy are related in the photoelectric effect.
• Use experimental ideas such as threshold frequency and stopping potential to determine physical quantities.
• Interpret how photon flux affects emission rate while photon energy affects electron ejection.+ Show more

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.

Learning Objectives

• Apply Newton’s three laws to describe relationships between forces and motion in real systems.
• Calculate net force and use it to predict acceleration for motion with friction and drag.
• Interpret and use free-body diagrams to model terrestrial and wind-driven forces.

Learning Objectives

• Explain energy conversion efficiency and identify useful energy versus energy losses.
• Interpret energy-flow models that distinguish transferred energy from dissipated energy.
• Analyze why physical constraints prevent processes from achieving 100% useful work conversion.+ Show more

Learning Objectives

• Explain how changes in greenhouse gases and aerosols affect Earth’s energy balance.
• Differentiate natural climate drivers (e.g., El Niño, orbital changes, volcanic eruptions) by their timescales and effects.
• Use evidence from climate descriptions to identify the most likely main idea or claim.

Learning Objectives

• Assess renewable energy resources by analyzing geographic and seasonal variability.
• Explain how conversion technologies (wind, solar, bioenergy) convert energy and why intermittency is a challenge.
• Evaluate renewable systems using lifecycle and environmental metrics such as energy payback and greenhouse gas balance.

Learning Objectives

• Apply Ohm’s law to solve for voltage, current, and resistance in circuit scenarios
• Analyze series and parallel circuits using Kirchhoff’s rules and equivalent resistance
• Calculate electrical power and energy transfer in resistive elements and interpret efficiency+ 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 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

• Explain ethical, legal, and social considerations in biotechnology applications such as genome editing and recombinant organisms.
• Analyze risks and benefits related to biosafety, ecological impact, intellectual property, and equitable access.
• Describe how regulatory frameworks and public consultation influence real-world deployment of biotechnology in Alberta and beyond.

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

• Explain how scientific models and theories are supported by evidence and revised when new data appear
• Apply concepts of causation, prediction, and experimental design to interpret scientific statements
• Analyze reading information to identify main ideas and evaluate claims using evidence

Learning Objectives

• Explain how lipid bilayers and membrane proteins create selective permeability
• Analyze how passive and active transport maintain concentration and electrochemical gradients
• Use quantitative relationships to connect concentration differences, ion gradients, and membrane potential+ Show more

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 stratigraphy, fossil assemblages, and radiometric dating are used to organize Earth’s history into geological time intervals.
• Distinguish between relative dating and absolute dating methods in constructing timelines.
• Analyze how changes in the atmosphere, oceans, and biosphere can be interpreted through geological evidence across long time scales.

Learning Objectives

• Explain oxidation and reduction as electron loss and electron gain and connect them to oxidizing and reducing agents.
• Use oxidation states to identify which elements are oxidized or reduced in a chemical process.
• Balance redox reactions using the half-reaction method while conserving both mass and charge.+ Show more

Learning Objectives

• Explain how heat transfer relates to enthalpy changes in chemical reactions
• Distinguish exothermic and endothermic reactions using temperature and enthalpy trends
• Use specific heat and calorimetry concepts to connect temperature change to energy transfer+ 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 reaction rate depends on collision frequency and collision effectiveness.
• Describe how concentration, temperature, and surface area affect particle collisions at the microscopic level.
• Apply collision theory to predict how changes in conditions influence product formation over time.

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

• Identify Earth’s internal layers (crust, mantle, outer core, inner core) and describe key physical properties.
• Explain how seismic wave behavior and rock density/mineral phases provide evidence for Earth’s layer boundaries.
• Interpret seismic and geological information to infer past tectonic activity and long-term plate motions.

Learning Objectives

• Explain how energy flows directionally through trophic levels while decreasing due to transformation and heat loss.
• Describe how matter cycles through ecosystems via producers, consumers, and decomposers.
• Use food webs to interpret trophic structure and the relationship between energy efficiency and biomass.+ Show more

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 biotic interactions (predation, competition, mutualism, parasitism) affect population sizes in an ecosystem.
• Describe how energy moves through trophic levels and how disruptions can cascade through a food web.
• Use ecosystem interaction vocabulary to analyze symbiotic relationships and predict possible community changes.

Learning Objectives

• Explain how wave reflection and refraction occur at boundaries between different media
• Use wave concepts (frequency, speed, direction, and impedance/index ideas) to predict changes in wave behavior
• Interpret real-world examples of reflected and refracted waves such as echoes and light through materials

Learning Objectives

• Explain how energy transfer into or out of a system changes particle motion and increases or decreases temperature.
• Differentiate exothermic and endothermic processes using internal energy, particle motion, and potential configurations.
• Apply conservation of energy to interpret temperature change as evidence of energy transfer rather than energy creation.

Learning Objectives

• Explain how chemical reactions are modeled using particles, collisions, bond breaking, and bond forming.
• Connect observable reaction evidence (color, gas formation, temperature change) to microscopic particle changes.
• Describe energy roles in reactions, including activation energy and how endothermic/exothermic reactions affect particle motion.

Learning Objectives

• Explain how the atomic model uses a nucleus (protons and neutrons) and an electron cloud (electrons) to describe atomic structure
• Connect quantum numbers, orbital subshells, and electron configuration to predicted electron behavior and chemical properties
• Use periodic trends to interpret how effective nuclear charge affects atomic radius, ionization energy, and reactivity

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 natural selection, genetic drift, and gene flow can change allele frequencies in populations
• Compare the conditions under which genetic drift and gene flow are most likely to produce evolutionary change
• Use evolutionary mechanisms to interpret patterns of diversification and relatedness among populations+ 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 energy flows through ecosystems in one direction while matter cycles between biotic and abiotic components
• Describe the roles of photosynthesis, cellular respiration, decomposers, and the nitrogen/phosphorus/carbon pathways in matter cycling
• Analyze how biosphere-scale cycling helps predict long-term ecosystem patterns and responses to environmental change

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

• 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 changing electric and magnetic fields produce electromagnetic wave propagation.
• Use relationships among frequency, wavelength, and photon energy to analyze electromagnetic spectrum categories.
• Apply quantitative wave ideas (impedance, intensity, attenuation) to communication scenarios.

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

• Define the mole concept and use it to convert between particles, moles, and mass
• Calculate molar mass and use it to perform mass–mole conversions
• Use balanced chemical equations to determine quantitative relationships between reactants and products

Learning Objectives

• Explain how collision theory and activation energy influence reaction rates.
• Determine reaction orders from rate laws and predict how concentration changes affect rate.
• Use the Arrhenius relationship to interpret how temperature changes rate constants.+ Show more

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

• Analyze how potential and kinetic energy interchange during simple harmonic motion for springs and pendulums
• Use energy and phase-space ideas to explain why conservative oscillators conserve mechanical energy
• Model small-angle pendulum motion and link it to differential-equation behavior+ Show more

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 meiosis separates chromosomes and how allele assortment in gametes leads to inheritance patterns in offspring.
• Use Punnett-square reasoning to predict genotype and phenotype outcomes from dominance and recessiveness.
• Interpret how recombination during sexual reproduction produces new allele combinations and genetic variation.

Learning Objectives

• Explain how heating during a phase change can increase particle spacing and interactions without changing temperature.
• Interpret heating curves to identify melting/boiling plateaus and relate them to latent heat.
• Use the particle model to describe particle behavior during solid–liquid–gas transitions.+ Show more

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, recombination, and sexual reproduction generate genetic variation within populations
• Describe how natural selection and differences in survival/reproduction change allele frequencies over time
• Analyze how genetic variation provides raw material for evolutionary change

Learning Objectives

• Differentiate ionic, covalent, and metallic bonding based on how electrons are transferred, shared, or delocalized.
• Use bond-energy ideas to explain trends in melting point and electrical/thermal conductivity.
• Predict macroscopic properties (solubility, hardness, conductivity) from bond type and particle structure.

Learning Objectives

• Use free-body diagrams and Newton’s laws for each component in a constrained multi-body system
• Write constraint equations that relate component accelerations (e.g., pulley/string length constraints)
• Couple algebraic Newton’s-law equations to solve for system acceleration and internal forces (tension, normal forces)