Grade 12 Science Worksheets

Learning Objectives

• Understand molecular mechanisms controlling gene expression, including transcription and translation.
• Identify roles of promoter architecture, transcription factors, epigenetic modifications, alternative splicing, and post-translational regulation.
• Analyze how regulatory networks modulate gene expression in time and space.+ Show more

Learning Objectives

• Describe the structure and functions of different organelles involved in cellular compartmentalization.
• Compare the roles of mitochondria, chloroplasts, endomembrane system, and peroxisomes in energy transformation, biosynthesis, and catabolism.
• Explain how organelle structure influences metabolic efficiency and measurable outputs such as ATP production and metabolite distribution.

Learning Objectives

• Explain the principles of gravitational dynamics and Keplerian motion governing orbital trajectories.
• Identify how orbital eccentricity, inclination, and semimajor axis influence planetary and satellite systems.
• Apply formulas for escape velocity, orbital energy, and analyze perturbation effects in orbital systems.+ Show more

Learning Objectives

• Understand different types of community interactions such as competition, predation, parasitism, mutualism, and commensalism.
• Explain how energy flow and trophic relationships shape ecosystems.
• Analyze examples of community interactions in Alberta ecosystems and their effects on biodiversity and stability.+ Show more

Learning Objectives

• Describe the differences between dispersion forces, dipole–dipole interactions, and hydrogen bonding.
• Explain how molecular size, shape, and polarity influence intermolecular forces.
• Relate intermolecular forces to macroscopic properties such as boiling point, vapor pressure, viscosity, and solubility.+ Show more

Learning Objectives

• Explain how cytoskeletal networks and filament dynamics contribute to cell shape and mechanical resilience.
• Describe how membrane–extracellular matrix (ECM) interactions regulate force transmission and mechanotransduction.
• Evaluate how intercellular junctions and molecular motor-driven transport influence cellular function and compartmentalization.

Learning Objectives

• Understand the water cycle and its importance to ecosystems.
• Recognize human impacts on water resources and ecosystems.
• Identify conservation strategies to promote water sustainability.

Learning Objectives

• Understand the various evidence types used in integrated geological reconstruction.
• Analyze how stratigraphy, radiometric data, paleomagnetic records, structural relationships, and fossils are synthesized to interpret Earth's history.
• Evaluate the significance of multiple evidence correlation in constraining tectonic and paleoenvironments.+ Show more

Learning Objectives

• Understand the societal implications of energy choices.
• Analyze case examples related to public health, environment, and economics.
• Evaluate trade-offs among benefits, harms, and distributional effects.+ Show more

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

• Compare the Arrhenius, Brønsted–Lowry, and Lewis definitions of acids and bases using correct examples.
• Use conjugate acid–base pairs to explain changes in pH and relate pH to pOH.
• Interpret titration curves and equivalence points and connect them to reaction stoichiometry and equilibria.

Learning Objectives

• Explain how energy transfer and matter cycling connect the atmosphere, hydrosphere, lithosphere, and cryosphere.
• Interpret radiative balance and albedo effects to predict how changes in Earth’s surface alter climate.
• Analyze hydrologic cycle processes and ocean–atmosphere coupling as mechanisms that drive climate variability and steady states.

Learning Objectives

• Understand how to calculate reaction enthalpies using standard enthalpies of formation and combustion.
• Apply Hess's law to combine enthalpy terms algebraically for complex reactions.
• Estimate reaction enthalpies using bond enthalpies and analyze energetic trends in chemical reactions.

Learning Objectives

• Explain the principles of VSEPR theory and how it determines molecular shape.
• Identify various molecular geometries based on electron pair repulsion models.
• Analyze the relationship between molecular shape, bond angles, and polarity.+ Show more

Learning Objectives

• Understand the key factors that influence changes in population size and structure.
• Identify patterns of population growth, including exponential and logistic models.
• Recognize different types of interactions within ecosystems and their effects on populations.+ Show more

Learning Objectives

• Understand how nutrients cycle through ecosystems among producers, consumers, and decomposers.
• Explain the concept of energy flow in ecosystems and why it is unidirectional.
• Recognize the role of food webs and trophic levels in energy transfer and biomass distribution.+ Show more

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

• Use chemical equations to represent chemical change and balance them using the law of conservation of mass
• Identify and classify common reaction types (synthesis, decomposition, single and double replacement, combustion)
• Apply stoichiometric coefficients and mole ratios to make quantitative relationships between reactants and products+ Show more

Learning Objectives

• Describe the main types of chemical bonding: ionic, covalent, and metallic.
• Explain how electronegativity differences influence bond polarity.
• Relate bond order and bond energy to bond length and strength.+ Show more

Learning Objectives

• Explain how complementary base pairing in DNA underlies accurate nucleic acid replication
• Compare sources of replication errors with the role of DNA repair pathways in maintaining replication fidelity
• Describe how sequence variation (substitutions, insertions, deletions, and rearrangements) can change genetic information flow+ Show more

Learning Objectives

• Describe fundamental molecular techniques used in analyzing and manipulating genetic material.
• Explain the mechanisms underlying PCR, DNA sequencing, recombinant DNA, and CRISPR–Cas systems.
• Identify applications of genomic technologies in diagnostics, trait modification, and ethical considerations.+ Show more

Learning Objectives

• Understand the concept of chemical equilibrium in reversible reactions.
• Describe how Le Chatelier’s principle predicts shifts in equilibrium due to changes in concentration, pressure, or temperature.
• Apply equilibrium expressions to optimize reaction yield and separation strategies.+ Show more

Learning Objectives

• Understand key molecular techniques used in genomic analysis.
• Describe applications of recombinant DNA and genome editing methods.
• Identify data interpretation issues in genomic studies.+ Show more

Learning Objectives

• Explain the concept of wave-particle duality in quantum mechanics.
• Describe how matter exhibits wave behavior through de Broglie wavelengths.
• Understand the connection between wavefunctions and atomic spectral lines.+ Show more

Learning Objectives

• Explain how effective nuclear charge and electron shielding drive periodic trends in ionization energy, electron affinity, and atomic radius.
• Use subshell filling and penetration to rationalize anomalies in predicted periodic behavior.
• Interpret quantitative and graphical comparisons to justify classifications and reactivity patterns.

Learning Objectives

• Explain how protons, neutrons, and electrons are arranged in an atom using nucleus and electron cloud ideas.
• Use quantum numbers to describe electron energy levels, subshells, orbitals, and electron configurations.
• Predict trends in ionization energy and atomic radius using effective nuclear charge and valence electrons.

Learning Objectives

• Explain how energy transfers through radiation, conduction, convection, and phase change within Earth systems.
• Apply conservation of energy to simple energy budgets that connect microscopic processes to large-scale weather and ocean patterns.
• Interpret relationships between sea-surface temperature gradients, ocean currents, and geothermal heat flow.

Learning Objectives

• Explain the processes of transcription and translation in gene expression.
• Identify key regulatory elements like promoters, enhancers, and transcription factors.
• Describe how epigenetic modifications influence gene expression patterns.+ Show more

Learning Objectives

• Explain how matter moves through ecosystems via biogeochemical cycles connecting atmospheric, aquatic, and soil reservoirs.
• Describe the carbon cycle using photosynthesis, respiration, and decomposition.
• Describe key steps in the nitrogen cycle: nitrogen fixation, nitrification, assimilation, and denitrification.+ Show more

Learning Objectives

• Explain the principles of VSEPR theory and how electron pairs determine molecular shape.
• Identify common molecular geometries based on electron domain arrangements.
• Predict bond angles and molecular shapes for various molecules.+ Show more

Learning Objectives

• Understand the components and structure of the atom, including protons, neutrons, and electrons.
• Describe electron configurations, energy levels, and orbitals in atoms.
• Explain how valence electrons affect element reactivity and periodic trends.+ Show more

Learning Objectives

• Explain the global-scale atmospheric circulation patterns including Hadley, Ferrel, and polar cells.
• Describe the influence of thermal gradients and the Coriolis effect on pressure systems and storm tracks.
• Interpret circulation diagrams, pressure maps, and potential vorticity to understand weather regimes and climate shifts.+ Show more

Learning Objectives

• Use VSEPR electron-domain counting to predict molecular shapes and approximate bond angles
• Connect orbital hybridization (sp, sp2, sp3) to molecular geometry and predicted bond angles
• Evaluate how molecular geometry affects polarity, steric effects, and intermolecular interactions

Learning Objectives

• Explain lithospheric motion and deformation at convergent, divergent, and transform boundaries using plate-tectonic mechanisms.
• Interpret how earthquakes, volcanic distributions, and mantle convection models support past and present plate configurations.
• Use plate reconstructions and bathymetric/earthquake focal information to infer relative crustal evolution rates and styles over geologic time.

Learning Objectives

• Describe the stages of the water cycle and how water moves through different Earth spheres.
• Understand the role of the water cycle in weather and ecosystems.
• Identify the processes involved in the movement and transformation of water in the environment.

Learning Objectives

• Understand the concept of energy system efficiency and how it is measured.
• Identify common loss pathways such as heat dissipation in energy systems.
• Explain the role of insulation, surface area, and control systems in improving efficiency.+ Show more

Learning Objectives

• Understand the purpose and function of DNA sequencing tools
• Identify various scientific instruments used in research and their applications
• Explain measurement precision and calibration in scientific instruments+ Show more

Learning Objectives

• Explain how matter cycles through the atmosphere, hydrosphere, biosphere, and geosphere.
• Describe how carbon moves through photosynthesis, respiration, and ocean-atmosphere exchange.
• Connect changes in matter cycling to effects on weathering rates, ecosystem function, and climate-relevant gas levels.

Learning Objectives

• Understand the role of mathematical and computational models in hydrological and climate forecasting.
• Identify key concepts such as sensitivity analysis, boundary conditions, and model limitations.
• Evaluate the assumptions and sources of uncertainty in various modeling approaches.+ Show more

Learning Objectives

• Understand advanced stoichiometric calculations involving concentration, molarity, and dilution.
• Apply gas-phase relationships under standard and nonstandard conditions to reaction analysis.
• Integrate limiting reagent analysis with titration and volumetric data to quantify reaction extent.+ Show more

Learning Objectives

• Explain how energy flows through trophic levels and how matter cycles via decomposition and nutrient fluxes in ecosystems
• Use simple mass-balance ideas to quantify how nutrients move among producers, consumers, and decomposers
• Describe how network representations and trophic interactions help predict resilience and stability under environmental change

Learning Objectives

• Understand the structure of evidence-based scientific arguments
• Identify claims, warrants, and backing in scientific discussions
• Analyze case studies of scientific explanations for validity+ Show more

Learning Objectives

• Understand the principles of sensor selection and calibration in measurement systems.
• Describe the signal processing techniques and resolution limits in instrumentation.
• Explain sampling rates, aliasing effects, and interfacing methods for accurate data acquisition.+ Show more

Learning Objectives

• Understand how land use change affects biodiversity
• Identify cause-and-effect relationships in ecological systems
• Analyze human actions and their ecological consequences+ Show more

Learning Objectives

• Understand the various types of ecological interactions and their effects on population dynamics.
• Analyze trophic relationships and nutrient cycling within Alberta ecosystems.
• Evaluate how human activities and climate variability influence community structure and ecosystem services.+ Show more

Learning Objectives

• Understand the concept and purpose of phylogenetic trees in evolutionary biology.
• Identify features used to construct phylogenetic trees, including morphological and molecular data.
• Differentiate between homologous and analogous traits in evolutionary analysis.+ Show more

Learning Objectives

• Understand the principles of responsible conduct in research.
• Identify conflicts of interest and their impact on research integrity.
• Learn proper data management and sharing practices.+ Show more

Learning Objectives

• Distinguish ionic, covalent, and metallic bonding by electron transfer, sharing, and charge-delocalization models.
• Use Lewis structures and formal charge to evaluate bonding possibilities and predict likely molecular structures.
• Explain how bond type affects bulk properties such as conductivity, melting point, and solubility.