Grade 12 Science Worksheets

Learning Objectives

• Construct conceptual and quantitative models to represent real systems and identify key variables and parameters.
• Estimate parameters, validate model outputs against empirical data, and refine model structure to improve predictive performance.
• Compare deterministic and stochastic modeling approaches, and use dimensional analysis, scaling, and sensitivity testing to assess robustness.

Learning Objectives

• Compare how impact processes and endogenic activity shape the surfaces of terrestrial planets and icy bodies.
• Explain how internal structure and thermal evolution are inferred from cratering, volcanic, tectonic, and erosion evidence.
• Interpret remote sensing and in situ observations as data used to reconstruct planetary geologic histories.

Learning Objectives

• Select appropriate independent and dependent measures for experimental questions and explain why each matters for inference.
• Describe how control strategies, replication, randomization, and blocking reduce bias and improve validity.
• Plan an analysis using appropriate statistical tests (e.g., ANOVA vs. regression), including assumptions and limits on causal claims and generalizability.

Learning Objectives

• Distinguish precision and accuracy, and explain the roles of random and systematic error in measurements.
• Calculate and interpret uncertainty bounds using measurement resolution, calibration ideas, and significant figures.
• Propagate uncertainty through common physics/chemistry calculations and report results using appropriate notation.

Learning Objectives

• Explain how mitosis and meiosis produce different chromosome outcomes and support different biological roles
• Describe how chromosome segregation, homologous recombination, and cell-cycle checkpoints maintain genomic integrity
• Interpret karyotypes and nondisjunction consequences to predict changes in inheritance and phenotype

Learning Objectives

• Explain how empirical evidence and institutional structures influence whether scientific innovations are adopted by society
• Analyze how economic forces and public perception affect the diffusion of scientific and technological developments
• Evaluate how unintended consequences and policy responses shape long-term outcomes of scientific change

Learning Objectives

• Explain how atmospheric composition, pressure gradients, and thermal structure drive large-scale circulation patterns.
• Use the Coriolis force and cell/jet/frontal concepts (Hadley and Ferrel cells, jet streams, fronts) to interpret weather regimes.
• Connect atmospheric stability, lapse rates, and radiative heating to short-term variability and longer-term climate patterns.

Learning Objectives

• Explain how scientific discoveries move from research settings to real-world technologies through translational steps
• Identify the roles of intellectual property, technology transfer offices, funding, and industry partnerships in commercialization
• Analyze how regulatory constraints and scaling challenges affect whether innovations reach the market+ Show more

Learning Objectives

• Use Hardy–Weinberg equilibrium to connect allele and genotype frequencies to microevolutionary change
• Explain how selection, genetic drift, and migration alter allele and genotype frequencies over generations
• Interpret heterozygosity, effective population size, and fixation indices as measures of genetic variation+ Show more

Learning Objectives

• Evaluate trade-offs between renewable and nonrenewable resource allocation using sustainability criteria and data.
• Apply basic water budgeting and energy portfolio thinking to analyze long-term urban resource supply.
• Use lifecycle assessment and carrying-capacity constraints to compare extraction, reclamation, and waste-handling options.

Learning Objectives

• Use cost–benefit reasoning and multi-criteria decision analysis to compare climate and resource policies.
• Analyze tradeoffs among mitigation, adaptation, conservation, and socio-economic objectives using case-style scenarios.
• Evaluate policy outcomes with monitoring and evaluation, incentive structures, and governance constraints.

Learning Objectives

• Classify ionic, covalent, and metallic bonding using electrostatic interactions, polarity, and bond order ideas.
• Use Lewis structures and formal charge reasoning to predict molecular shapes and polarity with VSEPR.
• Relate bonding models to macroscopic properties such as melting point, conductivity, and solubility.

Learning Objectives

• Explain how effective nuclear charge and shielding influence periodic trends across periods and down groups.
• Interpret and predict patterns for atomic radius, ionization energy, electron affinity, electronegativity, and metallic character.
• Use reasoning based on electron configuration to compare representative elements (alkali metals, transition metals, halogens).

Learning Objectives

• Formulate scientific claims grounded in evidence from observations, measurements, and data.
• Use warrants and qualifiers to explain how evidence supports a claim and to limit overgeneralization.
• Evaluate competing hypotheses by judging evidence strength and logical consistency.+ Show more

Learning Objectives

• Explain how engineering teams match material properties to functional requirements and operating conditions.
• Evaluate common failure risks (fatigue, corrosion, and environmental degradation) when selecting materials.
• Compare materials such as aluminum, steel, and polymer composites using criteria like strength, toughness, thermal conductivity, and durability.

Learning Objectives

• Explain rotational analogs of linear quantities and define torque, moment of inertia, and angular momentum for rigid bodies.
• Use rotational kinematics and dynamics to relate net torque to angular acceleration.
• Apply conservation of energy and conservation of angular momentum to rolling and compound rotational systems.

Learning Objectives

• Use molarity and dilution relationships to calculate concentrations and moles in reaction problems.
• Apply stoichiometry, limiting reagent analysis, and gas laws to predict reaction extent and yields.
• Connect dimensional analysis to mole-based calculations across multistep reaction contexts.

Learning Objectives

• Explain how model validation and scenario forecasting use quantitative evidence from data and residual analysis.
• Use uncertainty quantification (e.g., confidence bounds) to communicate how trustworthy model predictions are.
• Construct evidence-based scientific arguments about model adequacy, limitations, and possible sources of discrepancy.

Learning Objectives

• Explain how molecular orbital (MO) theory extends valence-bond ideas to predict bond order and delocalization
• Use energy-level diagrams to interpret electronic structure, bond strength, and possible transitions
• Apply symmetry and orbital mixing ideas to predict magnetic behavior and compare localized vs delocalized bonding

Learning Objectives

• Explain how reaction rate depends on collision frequency and effective collisions.
• Connect changes in reactant concentration, temperature, and surface area to microscopic collision statistics.
• Use collision-and-energy ideas to predict how experimental conditions affect product formation rates.

Learning Objectives

• Explain what reaction yield means and distinguish it from reaction rate and extent of reaction.
• Predict how changes in conditions (like temperature and concentration) can affect product formation and limiting reactants.
• Connect microscopic collision behavior and stoichiometry to whether a reaction produces a high or low amount of product.

Learning Objectives

• Explain how plate motion, internal heat, and erosion shape Earth’s geologic evolution using evidence and models.
• Differentiate convergent, divergent, and transform boundaries based on typical geologic and earthquake-related features.
• Use evidence such as matching rock ages and magnetic patterns to support plate tectonics models.

Learning Objectives

• Explain how energy is conserved during heating and cooling by tracing transfers between a system and its surroundings
• Use calorimetry reasoning with temperature change and heat capacity to set up a heat gained/lost balance
• Differentiate energy flow in physical versus chemical processes using the same conservation framework

Learning Objectives

• Evaluate competing design solutions by prioritizing criteria and identifying trade-offs among environmental, economic, and social impacts.
• Use evidence and uncertainty to support a defensible claim about performance and possible unintended consequences.
• Explain why an optimized choice can improve one goal while worsening another constraint.

Learning Objectives

• Explain how molecular markers and genetic theory are used to measure diversity, inbreeding, and gene flow in fragmented populations.
• Interpret genetic metrics (heterozygosity, effective population size, and connectivity) to assess extinction risk and demographic viability.
• Evaluate how genetic information can guide conservation planning, such as habitat corridors and recovery strategies using Alberta examples.

Learning Objectives

• Explain how scientific inquiry uses questions, observations, measurements, and logical reasoning to support claims with evidence.
• Evaluate whether a claim is supported by data and whether alternative explanations have been considered.
• Use evidence to identify patterns and justify conclusions that can be independently tested.

Learning Objectives

• Explain how balanced chemical equations represent conservation of atoms.
• Interpret coefficients and translate particle relationships into mole and mass relationships.
• Use stoichiometric reasoning to predict which reactant quantities can produce observed products.

Learning Objectives

• Explain how atomic packing and unit-cell geometry relate to the structure of ionic, metallic, and covalent solids
• Connect crystal defects and impurities to changes in mechanical strength and electrical behavior
• Use band theory ideas to describe the difference between conductors, semiconductors, and insulators

Learning Objectives

• Explain how cells regulate gene expression beyond the basic DNA-to-protein process
• Describe the roles of transcription factors and regulatory DNA regions in controlling transcription
• Compare different post-transcription regulatory mechanisms such as RNA processing and RNA regulation

Learning Objectives

• Explain how multiple lines of evidence support common descent and evolutionary change
• Describe how fossil records, comparative anatomy, biogeographical patterns, and genetic data inform evolutionary relationships
• Use evidence-based reasoning to connect patterns in data to the process of evolution

Learning Objectives

• Explain momentum as the product of mass and velocity, including the role of direction.
• Use conservation of momentum to predict velocities after collisions in a closed system.
• Differentiate elastic and inelastic collisions by whether kinetic energy is conserved or decreases.+ Show more

Learning Objectives

• Explain how science and technology differ in purpose even when they use similar tools and knowledge.
• Describe how evidence, models, and constraints shape scientific understanding and technological design.
• Evaluate examples of how scientific discoveries can be used to create safer, more effective technologies.

Learning Objectives

• Explain how work depends on force magnitude and the angle between force and displacement.
• Calculate or interpret work and power using correct units (joules and watts).
• Distinguish between work (energy transfer) and power (rate of energy transfer) in real situations.

Learning Objectives

• Identify common evidence that a chemical reaction has occurred (gas, color change, precipitate, and temperature change).
• Explain reaction evidence using particle-level reasoning, including conservation of total atoms.
• Distinguish between exothermic and endothermic processes based on temperature changes.

Learning Objectives

• Distinguish codominance and incomplete dominance from complete dominance using phenotype outcomes
• Explain how multiple genes can produce complex inheritance patterns beyond monohybrid ratios
• Connect genotype combinations to measurable probabilities while accounting for allele interactions and recombination

Learning Objectives

• Explain how scientific claims rely on empirical evidence and logical reasoning.
• Distinguish evidence-based explanations from opinions that are not supported by data.
• Evaluate how mechanisms and predictions connect to evidence in scientific arguments.+ Show more

Learning Objectives

• Explain energy conservation for a closed system using energy accounting across initial and final states
• Differentiate between energy transfer and energy transformation, including nonconservative losses like friction
• Apply the conservation of total mechanical/physical energy to everyday scenarios

Learning Objectives

• Explain how greenhouse gases affect Earth’s energy budget by influencing the flow of radiation.
• Describe radiative forcing and how changes in greenhouse gas concentrations relate to climate change.
• Use feedback concepts to predict whether temperature changes may amplify or be damped.

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

• Explain how a star’s mass influences internal pressure, fusion rate, and lifespan.
• Describe the major stages of stellar evolution from formation to main sequence and later end states.
• Use patterns in the Hertzsprung-Russell (H-R) diagram concept to support ideas about star temperature and luminosity.

Learning Objectives

• Explain how reaction rate depends on collision frequency and collision effectiveness.
• Describe how concentration, temperature, and physical form (surface area) affect reaction rate.
• Use the activation energy concept to predict whether collisions will produce products.

Learning Objectives

• Explain how net force toward the center produces centripetal acceleration in circular motion
• Use centripetal acceleration and force relationships to compare how changes in radius or speed affect required inward force
• Apply concepts of gravity, orbits, and rotating motion to determine the source of centripetal force

Learning Objectives

• Explain how surface reflectivity (albedo) affects Earth’s energy balance
• Describe how melting ice can create positive feedback that amplifies warming
• Evaluate how clouds and atmospheric conditions alter reflection and absorption of solar energy

Learning Objectives

• Explain how galaxy redshifts provide evidence for the expansion of the universe
• Connect spectral line stretching (increasing wavelength) to observable redshift
• Use the distance–redshift relationship to describe how expansion has evolved over time+ Show more

Learning Objectives

• Explain how meiosis produces haploid gametes while maintaining the chromosome number across generations.
• Describe how homologous chromosome pairing and crossing over create new allele combinations.
• Analyze how independent assortment increases genetic variation among offspring.

Learning Objectives

• Explain how radioactive decay can be used to estimate absolute ages of rocks and other materials.
• Connect half-life, parent isotope remaining fraction, and daughter product amount to decay dating calculations.
• Evaluate the assumptions and limitations of radioactive dating compared with relative dating.

Learning Objectives

• Explain how tectonic activity, mountain building, earthquakes, and volcanism show energy flow and material cycling in Earth’s interior over geologic time.
• Describe how surface processes such as weathering, erosion, and deposition reshape landforms and contribute to the rock record.
• Use the idea that present-day Earth features are linked to past events to interpret rates and likely outcomes of change.

Learning Objectives

• Explain how reflection, refraction, interference, and absorption affect electromagnetic radiation in devices
• Use wave properties (such as wavelength) to predict effects on detection and image resolution
• Describe how design choices in optical sensors and communication systems influence what information can be measured