Grade 12 Science Worksheets

Learning Objectives

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

Learning Objectives

• Explain the fundamental concepts of plate tectonics and the movement of lithospheric plates.
• Identify different types of plate boundaries and their characteristic geological features.
• Describe processes such as sea-floor spreading, subduction zones, and fault systems.+ Show more

Learning Objectives

• Understand the role of equilibrium constants (Kc and Kp) in expressing the ratio of product and reactant activities at steady state.
• Explain the concept of reaction quotient Q and how it guides the direction of net reaction toward equilibrium.
• Describe how temperature influences equilibrium constants through enthalpic effects.+ Show more

Learning Objectives

• Explain basic Mendelian inheritance and segregation of alleles.
• Identify different inheritance modes such as linkage, sex linkage, incomplete dominance, and polygenic traits.
• Interpret pedigree charts to determine modes of inheritance and estimate carrier probabilities.+ Show more

Learning Objectives

• Understand the principles of energy transfer and dissipation in oscillatory systems.
• Define and explain simple harmonic motion, resonance, and damping effects.
• Analyze how non-conservative forces affect energy flow and amplitude in oscillations.+ Show more

Learning Objectives

• Describe trophic relationships and energy transfer within ecosystems.
• Explain the roles of keystone species and trophic cascades in community structure.
• Understand biogeochemical cycles and their influence on ecosystem productivity.+ 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 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 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 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 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 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 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

• 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

• 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

• 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

• 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 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

• 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

• 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

• 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 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

• 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

• Explain chemical equilibrium in terms of reversible reaction rates and constant macroscopic concentrations
• Use the equilibrium constant to compare the relative favorability of reactants and products under given conditions
• Predict how temperature changes affect equilibrium constants and equilibrium composition

Learning Objectives

• Use parallax and the distance–angle relationship to interpret nearby star measurements.
• Explain how standard candles and redshift support distance estimation for faraway galaxies.
• Connect light travel time to changes in observed positions and to the cosmic timeline.+ Show more

Learning Objectives

• Explain conservation of energy in terms of heat transfer between a system and its surroundings.
• Use calorimetry relationships (Q = m c ΔT and heat gained equals heat lost) to reason about energy changes.
• Apply energy-balance ideas to physical and chemical processes, including predicting temperature changes.

Learning Objectives

• Explain the concept of wave-particle duality in quantum mechanics.
• Describe how de Broglie wavelengths relate to particles.
• Analyze wave properties such as diffraction and interference in matter-waves.+ Show more

Learning Objectives

• Understand how electromagnetic signals propagate as coupled electric and magnetic fields.
• Explain the relationship between frequency, wavelength, and signal behavior during transmission.
• Describe phenomena such as reflection, refraction, attenuation, and dispersion in electromagnetic wave propagation.+ Show more

Learning Objectives

• Understand and apply scientific communication conventions such as significant figures, units, and labeled diagrams.
• Organize and present data clearly using tables and graphs.
• Describe methods using precise terminology and measured quantities.+ Show more

Learning Objectives

• Understand how safety standards and protective design influence societal safety.
• Analyze the connection between sustainability and lifecycle resource management.
• Evaluate how reliability impacts public trust and infrastructure costs.+ Show more

Learning Objectives

• Understand that during phase changes, energy is used to alter particle spacing and interactions rather than change temperature.
• Explain why heating curves show temperature plateaus at phase transitions like melting and boiling.
• Describe how the particle model accounts for phase changes and energy requirements.+ Show more

Learning Objectives

• Understand how measurement methods support trustworthy conclusions through operational definitions.
• Recognize the importance of consistent units and repeatable procedures in measurements.
• Identify sources of measurement error and methods to control them.+ Show more

Learning Objectives

• Understand how reaction yield is influenced by reaction conditions.
• Connect microscopic particle behavior to macroscopic reaction outcomes.
• Predict reaction yield based on stoichiometry and limiting factors.+ Show more

Learning Objectives

• Understand the processes of erosion, weathering, and sediment transport.
• Identify landforms created by erosion and deposition.
• Interpret geological records through surface patterns and sediment layers.+ Show more

Learning Objectives

• Understand the key performance metrics used in design optimization.
• Identify how constraints influence design decisions.
• Analyze trade-offs involved in optimizing engineering systems.+ Show more

Learning Objectives

• Understand the mechanisms that generate genetic variation within populations.
• Identify how mutations, recombination, and sexual reproduction contribute to genetic diversity.
• Explain the role of differential survival and reproduction in changing allele frequencies.

Learning Objectives

• Understand how to analyze claims in relation to evidence in scientific arguments.
• Identify missing links between data patterns and conclusions.
• Assess whether uncertainty and controls are properly acknowledged and justified.+ Show more

Learning Objectives

• Understand the process of gene expression, including transcription and translation.
• Identify different levels of gene regulation and their effects on cell function.
• Explain how gene expression influences traits and phenotypes.+ Show more

Learning Objectives

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

Learning Objectives

• Describe the key seismic patterns that reveal tectonic structures and stress regimes.
• Differentiate between shallow and deep earthquake zones based on focal depths.
• Interpret seismic data related to fault mechanisms and subsurface heterogeneity.+ Show more

Learning Objectives

• Explain the principles of electron pair repulsion and how they determine molecular shape.
• Identify common molecular geometries based on VSEPR and hybridization.
• Determine bond angles and relate molecular shape to polarity and intermolecular forces.+ Show more

Learning Objectives

• Describe the processes involved in erosion, including detachment, transport, and deposition of sediments.
• Identify different erosion mechanisms such as river incision, glacial plucking, and coastal erosion.
• Analyze how climate, vegetation, and tectonic activity influence erosion rates and landscape changes.+ Show more

Learning Objectives

• Understand the concept of natural selection and how it drives evolution.
• Identify different patterns of selection such as directional, stabilizing, and disruptive.
• Recognize real-world examples like antibiotic resistance illustrating selection processes.+ Show more

Learning Objectives

• Understand the components of risk assessment processes in socio-environmental decision-making.
• Identify governance frameworks and legal instruments used in managing complex socio-environmental risks.
• Analyze stakeholder trade-offs and the importance of transparent evidence synthesis in environmental governance.+ Show more

Learning Objectives

• Understand Mendelian principles and how they explain inheritance of traits.
• Identify different inheritance models such as linkage, sex linkage, incomplete dominance, and polygenic traits.
• Interpret pedigree charts and estimate carrier probabilities.+ Show more

Learning Objectives

• Understand the role of multi-criteria decision frameworks in regional planning.
• Analyze cross-disciplinary evidence from biological, chemical, and physical data.
• Evaluate uncertainties and limitations in complex environmental assessments.+ Show more