Grade 12 Science Worksheets

Learning Objectives

• Define linear momentum and explain how impulse relates to changes in momentum
• Describe how momentum is conserved in an isolated system and distinguish external forces from internal forces
• Compare elastic and inelastic collisions using momentum conservation and kinetic energy outcomes+ Show more

Learning Objectives

• Explain how sea-floor spreading at mid-ocean ridges creates new oceanic crust.
• Describe how magnetic stripes form and why they appear symmetrically on both sides of a ridge.
• Interpret relationships among magnetic anomaly patterns, radiometric ages, and plate motion.

Learning Objectives

• Explain how environmental pressures change allele frequencies through differential survival and reproduction
• Differentiate patterns of selection (directional, stabilizing, disruptive) and predict their outcomes
• Use examples such as antibiotic resistance to connect natural selection to observable evolutionary change

Learning Objectives

• Explain how population-scale sequencing and high-resolution genomic data support disease risk prediction and conservation genetics.
• Describe how personalized medicine uses genotype information and why consent and privacy matter.
• Evaluate potential benefits and risks of interventions such as gene drives, including biosafety and long-term ecological impacts.+ Show more

Learning Objectives

• Apply Le Chatelier’s principle to predict how equilibrium shifts when concentration, pressure, or temperature changes.
• Determine which side of a gaseous equilibrium will be favored based on relative moles of gas and pressure changes.
• Explain how temperature changes depend on reaction enthalpy and how catalysts affect reaction rates without changing equilibrium position.

Learning Objectives

• Explain how stratigraphy, radiometric ages, paleomagnetism, structural relationships, and fossils can be combined to reconstruct past tectonic events
• Interpret how multiple lines of evidence constrain the timing and sequence of deformation, magmatism, and sedimentation
• Use integrated reconstruction ideas to describe paleoenvironments and infer plate motions

Learning Objectives

• Explain how resource assessment combines geological data to estimate mineral and energy deposits.
• Differentiate measured reserves from inferred resources and describe why confidence levels differ.
• Evaluate how extraction choices and environmental factors affect the economic viability of a deposit.

Learning Objectives

• Use quantum numbers (n, ℓ, mℓ, ms) to describe electrons in atoms
• Apply the Aufbau principle, Pauli exclusion principle, and Hund’s rule to build electron configurations and orbital diagrams
• Explain how photoelectron spectroscopy supports electronic structure trends and interpret anomalous electron configurations

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 experimental evidence led to changes in atomic models from Dalton to Rutherford to Bohr.
• Relate cathode ray observations and gold foil scattering to the existence and location of subatomic particles.
• Connect discrete spectral lines to quantized energy levels and infer implications for electron structure.

Learning Objectives

• Apply the first and second laws of thermodynamics to interpret internal energy, enthalpy, entropy, and Gibbs free energy in chemical systems.
• Predict reaction spontaneity and the direction of approach to equilibrium using temperature-dependent free energy changes.
• Connect free-energy changes to equilibrium constants and interpret how coupling reactions can conserve energy.

Learning Objectives

• Explain how radioactive decay follows quantitative laws using half-life and activity.
• Apply conservation of nucleon number to interpret nuclear reactions.
• Relate nuclear reaction energetics to energy release and safety considerations.

Learning Objectives

• Identify the limiting reagent from a balanced chemical equation and given reactant quantities.
• Calculate theoretical yield and percent yield using stoichiometric ratios.
• Explain how excess reagents and incomplete conversion affect product formation in real processes.

Learning Objectives

• Explain how mutation, natural selection, genetic drift, and gene flow change allele frequencies over time.
• Describe how environmental pressures can produce adaptation and increased diversity in populations.
• Analyze how small population size makes genetic drift especially influential.

Learning Objectives

• Integrate biological, chemical, and physical evidence to justify a defensible recommendation.
• Apply multi-criteria decision frameworks while clearly stating assumptions and limitations.
• Use quantitative reasoning and uncertainty language to evaluate competing solutions for regional challenges.

Learning Objectives

• Apply Ohm’s law to analyze relationships between voltage, current, and resistance in circuit problems.
• Use series and parallel circuit principles to compare current, voltage, and equivalent resistance.
• Use Kirchhoff’s rules to reason about voltage drops and consistency of current in a circuit.+ Show more

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 multiple lines of evidence support evolution, including fossils, homology, biogeography, and molecular phylogenetics.
• Use evidence patterns such as transitional forms and congruent trees to justify evolutionary relationships.
• Distinguish scientific interpretations of evidence from misconceptions about evolution.

Learning Objectives

• Explain energy flow in real systems by identifying where energy enters, transfers, and leaves a system.
• Apply the law of conservation of energy to energy transformations such as combustion and electricity generation.
• Evaluate efficiency by comparing useful energy output to total energy input and describing major losses.+ Show more

Learning Objectives

• Distinguish measurement error, sampling variability, and model uncertainty in real monitoring data.
• Use uncertainty ideas to interpret confidence intervals and non-significant results.
• Apply the logic of hypothesis testing and propagation of uncertainty to support scientifically defensible conclusions.

Learning Objectives

• Explain how effective nuclear charge and electron shielding influence periodic trends such as atomic radius, ionization energy, and electron affinity.
• Use subshell filling and electron configurations to predict patterns and identify anomalies across periods and groups.
• Apply trend reasoning to classify elements and rationalize examples of reactivity series behavior.

Learning Objectives

• Explain how enzyme kinetics and steady-state assumptions help predict changes in metabolic flux.
• Compare major control mechanisms: allosteric modulation, feedback inhibition, and hormonal regulation.
• Distinguish regulation at transcriptional, translational, and post-translational levels and predict physiological outcomes.

Learning Objectives

• Explain how light reactions in chloroplast membranes convert photon energy into ATP and NADPH
• Describe how electron transport chains and pigment organization support proton pumping and chemiosmosis
• Connect ATP/NADPH supply to the Calvin cycle and interpret how photon flux and quantum yield affect carbon fixation+ Show more

Learning Objectives

• Explain how priors, likelihoods, and posteriors combine to quantify uncertainty in a Bayesian framework.
• Contrast frequentist and Bayesian interpretations of probability using real scientific examples.
• Use probability statements to make decision-relevant conclusions and communicate uncertainty.

Learning Objectives

• Use free-body diagrams and Newton’s 2nd law to write force equations for multiple connected components
• Apply constraint relations to link component accelerations in multi-body systems
• Derive system accelerations and internal force distributions (e.g., tensions and contact normals) under idealized assumptions

Learning Objectives

• Use valence-shell electron-pair repulsion (VSEPR) to predict molecular shape and approximate bond angles from electron-pair geometry.
• Apply hybridization ideas (sp, sp2, sp3) to relate bonding and lone pairs to three-dimensional molecular structures.
• Connect molecular geometry and symmetry to polarity, dipole moment, and expected intermolecular behavior in covalent compounds.

Learning Objectives

• Explain how effective nuclear charge and electron shielding influence periodic trends such as atomic radius and ionization energy.
• Predict how ion formation relates to periodic patterns in electronegativity and metallic character.
• Connect periodic position to observable macroscopic behavior, including reactivity and typical bonding tendencies.

Learning Objectives

• Explain how lipid bilayer organization affects membrane permeability and diffusion
• Compare passive and active transport mechanisms and their dependence on gradients and energy
• Use electrochemical potentials and quantitative relationships to predict ion movement and membrane potential

Learning Objectives

• Explain how nucleic acid amplification and sequencing technologies produce molecular data used in biotechnology research.
• Interpret what read mappings and expression profiles reveal about genetic function while recognizing what they cannot prove.
• Evaluate molecular evidence quality by distinguishing correlation from causation in genome and gene-expression studies.

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

• Construct claims that are supported by specific evidence and clear reasoning
• Use variables, controls, and data patterns to justify causal interpretations
• Evaluate alternative explanations and strengthen scientific explanations accordingly

Learning Objectives

• Explain how contact and long-range forces can be represented with free-body diagrams and vector addition.
• Apply Newton’s laws to calculate net force and predict acceleration in common scenarios with friction and constraints.
• Use conditions for static equilibrium and distinguish static versus kinetic friction models.

Learning Objectives

• Explain projectile motion using independent horizontal and vertical motion under uniform gravitational acceleration.
• Use kinematic equations and time-of-flight reasoning to predict range and landing position.
• Connect vector decomposition and parametric equations to the shape of a projectile’s trajectory.+ Show more

Learning Objectives

• Describe how large-scale circulation cells (Hadley, Ferrel, and polar) redistribute heat and influence pressure patterns
• Explain how the Coriolis effect and thermal gradients shape jet streams and midlatitude storm tracks
• Use circulation and pressure-map reasoning to connect atmospheric dynamics with precipitation and seasonal/regional climate shifts

Learning Objectives

• Compare ionic, covalent, and metallic bonding based on particle interactions and electron behavior
• Use bond type concepts to predict properties such as melting point, conductivity, and solubility
• Explain how electron sharing or electron transfer relates to macroscopic behavior of materials

Learning Objectives

• Explain how different types of mutations (point substitutions, insertions, deletions, chromosomal rearrangements) can change gene products
• Predict how mutations can have silent, loss-of-function, or gain-of-function effects
• Describe how replication errors and environmental mutagens contribute to genetic variation in populations

Learning Objectives

• Describe how electromagnetic waves propagate using Maxwell’s concepts and the idea of changing electric and magnetic fields.
• Relate frequency, wavelength, and energy in the electromagnetic spectrum using quantitative relationships.
• Use wave ideas to interpret practical communication effects such as intensity changes and attenuation.

Learning Objectives

• Represent displacement, velocity, and acceleration as vectors in one and two dimensions
• Decompose vectors into components and use component analysis to solve kinematics problems
• Model projectile motion using parametric equations and predict positions over time

Learning Objectives

• Explain how population size, growth rate, and carrying capacity are linked to ecological interactions.
• Describe trophic relationships and how energy transfer efficiency affects food webs.
• Connect nutrient cycling to ecosystem functioning and interpret how disturbances change these processes.+ Show more

Learning Objectives

• Classify common chemical reactions into synthesis, decomposition, displacement, combustion, redox, and acid–base categories.
• Predict likely products and reaction outcomes by using reaction patterns and basic stoichiometry reasoning.
• Relate reaction types to real-world contexts such as energy production, mining chemistry, and environmental effects.

Learning Objectives

• Explain how science knowledge and technology choices involve trade-offs among economic, environmental, and social values.
• Evaluate STSE decisions using criteria such as risk, benefit, regulation, and community impacts.
• Use regional examples (e.g., oil sands, urban air quality, Indigenous stewardship) to support evidence-based conclusions.

Learning Objectives

• Apply the law of reflection and Snell’s law to predict light paths at interfaces
• Use ray models to determine image characteristics formed by lenses
• Calculate focal length and interpret how lens shape affects image formation+ Show more

Learning Objectives

• Explain how simple harmonic motion links amplitude, period, phase, and natural frequency to sinusoidal motion.
• Use mass–spring and pendulum models to analyze energy exchange and how damping affects oscillations.
• Interpret resonance and apply harmonic motion ideas to real measurement systems such as seismographs.

Learning Objectives

• Explain how wavelength, frequency, amplitude, and wave speed relate to wave behaviour in both mechanical and electromagnetic waves
• Use quantitative relationships to predict how changing conditions affects wave propagation and observed effects
• Describe common wave interactions (reflection, refraction, dispersion) and connect them to real-world phenomena

Learning Objectives

• Explain how technology choices affect efficiency, safety, sustainability, and reliability.
• Evaluate trade-offs between performance, risk reduction, environmental impact, and long-term operation.
• Use real-world examples to justify technology decisions using evidence and systems thinking.

Learning Objectives

• Understand how to select appropriate graphs, charts, and tables to represent data effectively.
• Analyze and interpret various types of data visuals including scatter plots, histograms, boxplots, and time-series charts.
• Identify key elements such as axis scaling, labels, error bars, and confidence intervals in data visuals.+ Show more

Learning Objectives

• Understand the pathways of carbon and nitrogen in environmental systems.
• Analyze the fluxes and reservoir exchanges within Earth's cycles.
• Evaluate human impacts such as fossil fuel combustion and fertilizer runoff on nutrient fluxes.+ Show more

Learning Objectives

• Interpret reaction yield as the extent of reactant conversion into products under specific conditions
• Explain how particle-model ideas (collisions, activation energy, depletion) affect reaction rate and final yield
• Evaluate how competing pathways can change product distribution and reduce desired yield+ Show more