Grade 12 Science Worksheets

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

• Understand the origin and significance of atomic spectra in identifying elements and electronic structures.
• Describe the principles of spectral line formation, including selection rules and line broadening.
• Interpret spectroscopic data to support applications in environmental monitoring, resource assessment, and laboratory analysis.+ Show more

Learning Objectives

• Explain how reaction energy profiles illustrate activation energy, transition states, and energy changes.
• Compare uncatalyzed and catalyzed reaction pathways in terms of activation energy and reaction rate.
• Justify why catalysts increase rate without changing the overall energy difference between reactants and products.+ Show more

Learning Objectives

• Understand how stratigraphy, radiometric ages, and fossil records are integrated to interpret Earth's geologic history.
• Identify key evidence types used in reconstructing tectonic and basin evolution.
• Explain how multiple data sources contribute to understanding plate motions and paleoenvironments.+ Show more

Learning Objectives

• Explain fossil evidence for evolutionary change over time
• Compare morphology as evidence of evolutionary relationships
• Describe biogeography and molecular phylogenetics in taxonomy+ Show more

Learning Objectives

• Explain reaction rate behavior using collision theory and the activated complex concept.
• Analyze how concentration, temperature, surface area, and catalysts affect reaction rates.
• Determine reaction order from rate-law relationships and interpret kinetic ideas like activation energy.

Learning Objectives

• Understand how biological, chemical, and physical principles interact to produce environmental phenomena.
• Analyze complex regional environmental patterns using cross-disciplinary reasoning techniques.
• Evaluate the roles of biochemical nutrient cycles, chemical speciation, and physical transport processes in ecosystems.+ Show more

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

• Understand how atomic and ionic properties vary across the periodic table.
• Explain the factors driving periodic trends such as nuclear charge and electron shielding.
• Predict element reactivity, ionic sizes, and bonding tendencies based on periodic trends.+ Show more

Learning Objectives

• Explain the key factors influencing population change, including birth, death, immigration, and emigration.
• Differentiate between exponential and logistic growth models and their applications.
• Understand the concepts of density-dependent and density-independent factors in population regulation.+ Show more

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

• Explain Faraday’s law and Lenz’s law using the idea of changing magnetic flux.
• Calculate or interpret induced emf and flux linkage relationships in qualitative and quantitative contexts.
• Predict the direction of induced current using Lenz’s law and describe safety/engineering implications for power systems.

Learning Objectives

• Identify different types of evidence that support the theory of evolution.
• Explain how fossil records, comparative morphology, biogeography, and molecular phylogenetics provide evidence for common ancestry.
• Analyze Alberta exemplars, such as Dinosaur Provincial Park fossils, to understand deep-time evolutionary change.+ Show more

Learning Objectives

• Represent RLC AC circuits using phasors to determine impedance and reactance and to identify phase relationships.
• Calculate real power, reactive power, apparent power, and power factor for sinusoidal 60 Hz AC loads.
• Use resonance conditions in series and parallel RLC circuits to predict current/voltage behavior and energy transfer.

Learning Objectives

• Explain how natural selection, genetic drift, and gene flow can change allele frequencies over time.
• Compare the conditions under which genetic drift is most likely to cause random allele loss or fixation.
• Describe how gene flow can reduce differences between populations and influence patterns of relatedness.

Learning Objectives

• Apply conservation of momentum and conservation of energy to analyze collisions and energy transfers.
• Differentiate elastic, inelastic, and perfectly inelastic collisions using physical meanings of the outcomes.
• Set up and use algebraic conservation equations to relate initial and final states in isolated systems.

Learning Objectives

• Describe the main stages of the rock cycle and how igneous, sedimentary, and metamorphic rocks are connected.
• Explain how weathering, erosion, transport, deposition, and burial transform rock material over geologic time.
• Use rock-cycle processes to interpret how environments change the features found in rocks.

Learning Objectives

• Explain the concept of energy stored in electric and magnetic fields.
• Define energy density for electrostatic and magnetic fields.
• Describe how capacitors and inductors store and release energy.+ Show more

Learning Objectives

• Understand the concept and components of biogeochemical cycles.
• Identify the major elements involved in cycles such as carbon, nitrogen, and phosphorus.
• Describe how natural processes and human activities influence these cycles.+ Show more

Learning Objectives

• Understand how adaptations improve survival and reproduction in specific environments
• Recognize examples of tradeoffs associated with adaptive traits
• Explain how environmental conditions influence the utility of certain traits+ Show more

Learning Objectives

• Understand the principles behind recombinant DNA techniques including vector assembly, restriction enzymes, and ligases.
• Identify various applications of recombinant DNA methods in agriculture and diagnostics.
• Explain ethical and regulatory considerations associated with applied biotechnology.+ Show more

Learning Objectives

• Explain how productivity and decomposition control ecosystem energy flow
• Describe carbon, nitrogen, and phosphorus movement through ecosystems
• Interpret how disturbances affect nutrient availability and productivity+ Show more

Learning Objectives

• Explain how erosion transports and sorts sediments by size and density
• Identify landforms formed by erosion and sediment deposition
• Interpret sedimentary layers as evidence of surface change+ Show more

Learning Objectives

• Apply conservation of momentum to predict collision outcomes
• Calculate kinetic energy changes in elastic and inelastic collisions
• Differentiate elastic, inelastic, and perfectly inelastic interactions+ Show more

Learning Objectives

• Explain electron configurations using Aufbau, Pauli, and Hund principles
• Predict ionic charges from valence electron patterns
• Compare chemical reactivity trends across periods and groups+ Show more

Learning Objectives

• Understand the principles of laminar and turbulent flow in natural and engineered systems.
• Apply the continuity and Bernoulli equations to analyze fluid behavior in rivers and atmospheric patterns.
• Relate scaling arguments and dimensional analysis to real-world fluid flow processes and flood risk assessment.

Learning Objectives

• Identify the components of a food chain
• Understand energy transfer between trophic levels
• Explain the role of keystone species in ecosystems+ Show more

Learning Objectives

• Explain how energy is transformed and conserved as it moves through real systems such as power generation and buildings.
• Use energy-flow ideas to calculate and interpret efficiency and energy losses.
• Describe how energy accounting connects to environmental impacts and technology trade-offs in Alberta’s energy system.

Learning Objectives

• Explain how activation energy relates to the energy profile of a reaction.
• Describe how catalysts change reaction pathways by lowering activation energy while keeping reactants and products energy differences unchanged.
• Use energy diagrams to predict the effect of catalysts on collision success and reaction rate.

Learning Objectives

• Explain interactions among nutrient cycling and physical transport
• Describe how chemical speciation affects environmental outcomes
• Interpret evidence from biological, chemical, and physical processes+ Show more

Learning Objectives

• Explain how lithospheric plate interactions at divergent, convergent, and transform boundaries produce earthquakes, volcanism, and major mountain building (orogeny).
• Connect evidence from radiometric dating, stratigraphic correlation, and seismic tomography to reconstruct geologic history and rates of crustal change.
• Describe how mantle convection and isostasy influence plate motion and surface geology.

Learning Objectives

• Identify the claim, evidence, and reasoning in scientific arguments and explain how they connect.
• Evaluate whether conclusions are supported by data patterns, considering uncertainty and missing links.
• Assess whether experimental controls justify an interpretation and compare competing explanations using the same evidence standard.

Learning Objectives

• Explain how mutation, natural selection, genetic drift, and gene flow change allele frequencies over time
• Use population-genetics concepts to predict how evolutionary pressures can produce adaptation and diversity
• Analyze the role of population size and environment in shaping phenotypic outcomes

Learning Objectives

• Explain what enthalpy change (ΔH) represents and use sign conventions to classify reactions as exothermic or endothermic.
• Apply Hess’s law and standard enthalpies of formation conceptually to determine reaction enthalpies.
• Interpret thermochemical information to reason about energy requirements and heat released in industrial and environmental contexts.

Learning Objectives

• Explain the principles of simple harmonic motion using sinusoidal models.
• Identify the relationship between amplitude, period, and resonance in oscillatory systems.
• Describe the application of oscillatory systems, such as seismographs, in monitoring natural and induced seismic activity.+ Show more

Learning Objectives

• Construct scientific explanations that connect a clear claim to specific evidence and reasoning
• Use variables and controls to justify whether a causal interpretation is supported by the data
• Evaluate alternative explanations and determine how strongly evidence supports a claim

Learning Objectives

• Explain how atomic structure drives periodic trends in atomic radius, ionization energy, electron affinity, and electronegativity.
• Use periodic trends to predict and justify changes in elemental properties across periods and down groups.
• Connect periodic trends to real-world applications such as corrosion resistance, catalysis, and nutrient availability.

Learning Objectives

• Explain how differential fitness can change allele frequencies across generations
• Identify evidence for natural selection using real-world examples (e.g., antibiotic resistance and finch beak variation)
• Evaluate how heritable variation and survival/reproduction differences connect to evolutionary change

Learning Objectives

• Understand the principle of energy conservation in isolated systems
• Differentiate between elastic, inelastic, and perfectly inelastic collisions
• Apply conservation equations to real-world physics problems+ Show more

Learning Objectives

• Explain how biotechnology uses molecular tools to manipulate genetic material and biological systems.
• Describe key biotechnological techniques such as recombinant DNA, PCR, DNA sequencing, and genome editing.
• Analyze real-world applications of biotechnology in medicine, agriculture, and industry.+ 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

• Explain how lithospheric plates move and how mantle convection and isostasy contribute to plate dynamics.
• Compare divergent, convergent, and transform boundaries and predict the types of surface geology they produce.
• Use evidence from radiometric dating, stratigraphic correlation, and seismic tomography to reconstruct Earth’s geologic history.

Learning Objectives

• Explain how nuclear charge, electron shielding, and subshell filling drive periodic trends
• Predict changes in atomic radius, ionization energy, and electronegativity across periods and down groups
• Use periodic trends to infer relative ionic sizes and likely bonding tendencies

Learning Objectives

• Explain how earthquake spatial distribution and focal depth patterns reflect tectonic settings.
• Describe how focal mechanisms and moment-tensor ideas relate to crustal stress and fault motion.
• Interpret how seismic tomography can reveal subsurface structures and heterogeneity.

Learning Objectives

• Represent displacement, velocity, and acceleration as vectors and relate them to components in 1D and 2D motion
• Use vector decomposition to solve quantitative problems involving projectile motion and component-wise acceleration
• Model planar trajectories using parametric equations and predict position and time under realistic conditions

Learning Objectives

• Explain the purpose and significance of phylogenetic trees in understanding evolution.
• Identify the types of data used in constructing phylogenetic trees, including morphological and molecular data.
• Describe methods for estimating divergence times and assessing tree reliability.+ Show more

Learning Objectives

• Explain temperature changes using conservation of energy
• Calculate heat gained or lost using calorimetry
• Interpret temperature-change data for heat transfer+ Show more

Learning Objectives

• Understand Mendelian inheritance and dominant/recessive traits
• Identify traits as dominant or recessive from pedigrees
• Analyze inheritance patterns using Punnett squares+ Show more