Grade 12 Science Worksheets

Learning Objectives

• Explain the concept of energy transfer in chemical reactions, including heat exchange and enthalpy changes.
• Differentiate between exothermic and endothermic reactions based on heat flow.
• Apply calorimetric principles and specific heat concepts to relate temperature changes to energy transfer.+ Show more

Learning Objectives

• Describe the principal types of chemical bonding: ionic, covalent, and metallic.
• Explain how bond type influences bulk properties such as electrical conductivity, melting point, and solubility.
• Use Lewis structures and formal charges to evaluate bonding differences.+ Show more

Learning Objectives

• Explain the role of cytoskeletal networks, membrane interactions, and intercellular junctions in maintaining cell shape and function.
• Describe the molecular motors and filament dynamics involved in cellular structural support and transport.
• Analyze how physical cellular architecture contributes to resilience, motility, and intracellular trafficking using microscopy and force measurement models.+ Show more

Learning Objectives

• Understand the purpose and components of conceptual and quantitative models in system analysis.
• Differentiate between deterministic and stochastic frameworks in modeling.
• Apply dimensional analysis, scaling, and sensitivity testing to evaluate model robustness.+ Show more

Learning Objectives

• Explain how signalling pathways, transcription factors, and noncoding RNAs work together to regulate gene expression.
• Describe how epigenetic marks (DNA methylation and histone modifications) can change chromatin accessibility and long-term gene expression.
• Apply regulatory-network concepts to environmental stress and immune regulation in real organisms.

Learning Objectives

• Understand the mechanisms of thermohaline and wind-driven ocean circulation.
• Explain how oceanic heat transport influences regional climate and phenomena like El Niño.
• Describe salinity, density stratification, and mixing processes in relation to carbon sequestration.+ Show more

Learning Objectives

• Identify different sources and types of uncertainty in scientific measurements.
• Distinguish between systematic bias, random error, and conceptual model uncertainty.
• Explain exemplars such as instrument drift and sampling variability to illustrate propagation of uncertainty.+ Show more

Learning Objectives

• Understand how standard enthalpies of formation and combustion are used to calculate reaction enthalpies.
• Apply Hess's law to algebraically combine enthalpy terms for complex reactions.
• Estimate reaction enthalpies using bond enthalpies and compare reaction energy trends.+ Show more

Learning Objectives

• Identify and describe ionic bonding and electron transfer
• Understand how electronegativity differences influence bond polarity
• Relate bond order and bond energy to bond length and strength+ Show more

Learning Objectives

• Describe the principles behind molecular techniques such as nucleic acid amplification and sequencing.
• Explain how genome editing approaches enable precise modifications in DNA.
• Interpret data representations like read mappings and expression profiles to infer genetic functions.+ Show more

Learning Objectives

• Understand core principles of scientific ethics including research integrity and informed consent.
• Identify case studies illustrating responsible conduct and misconduct in research.
• Evaluate mechanisms such as peer review and institutional review boards that uphold ethics.+ Show more

Learning Objectives

• Analyze human land-use conversion, industrial emissions, and pollution pathways affecting ecosystems.
• Evaluate the impacts of urbanization, coastal development, and agriculture on air, water, and soil systems.
• Employ case studies to relate anthropogenic pressures to ecosystem degradation and sustainability metrics.+ Show more

Learning Objectives

• Describe the major large-scale atmospheric circulation patterns and their components.
• Connect thermal gradients and Coriolis effects to pressure systems and weather phenomena.
• Interpret circulation diagrams, pressure maps, and potential vorticity to understand climate patterns.+ Show more

Learning Objectives

• Understand the concept of uniform and nonuniform circular motion and the associated vector changes in velocity.
• Apply the relationships among speed, radius, and acceleration in circular motion scenarios.
• Analyze forces such as centripetal force in examples like banked turns and orbital motions.+ Show more

Learning Objectives

• Describe and distinguish between Arrhenius, Brønsted–Lowry, and Lewis definitions of acids and bases.
• Identify common strong and weak acids and bases and understand their dissociation behavior.
• Explain the concepts of conjugate acid-base pairs and pH/pOH relationships.+ Show more

Learning Objectives

• Define and explain the concepts of linear momentum and impulse as conserved quantities in isolated systems.
• Describe the differences between elastic and inelastic collisions using algebraic and vector models.
• Apply impulse–momentum relations to solve collision problems involving multiple particles.+ Show more

Learning Objectives

• Describe and distinguish between contact and long-range force interactions.
• Apply Newton's laws to analyze forces and motion in systems with inclines, pulleys, and friction.
• Draw and interpret free-body diagrams for multiple-body systems.+ Show more

Learning Objectives

• Understand and describe the key properties of waves such as wavelength, frequency, amplitude, and phase velocity.
• Apply principles of superposition and interference to wave phenomena.
• Analyze standing wave formation and boundary conditions in strings and air columns.+ Show more

Learning Objectives

• Identify patterns of wind-driven surface circulation in the oceans.
• Understand the mechanisms of surface gyres and their effects on heat distribution.
• Explain how surface currents influence regional climates.+ Show more

Learning Objectives

• Understand the concept of static equilibrium
• Identify forces acting on objects at rest
• Recognize balanced forces and their effects+ Show more

Learning Objectives

• Explain how scientific evidence influenced public health and adoption of technologies across different historical periods.
• Analyze how institutions and economic incentives shaped the diffusion of scientific innovations and public perception.
• Evaluate unintended consequences of scientific and policy decisions and connect them to lessons for future adoption.

Learning Objectives

• Analyze key historical events that shaped scientific development and societal acceptance.
• Identify examples of technological diffusion and societal impact throughout history.
• Evaluate the role of evidence, institutions, and economic forces in scientific progress.+ Show more

Learning Objectives

• Analyze key historical examples illustrating the relationship between science and society.
• Evaluate how empirical evidence, institutions, and economic factors influence scientific adoption.
• Identify the societal impacts and unintended consequences of major scientific developments.+ Show more

Learning Objectives

• Summarize molecular methods used in biotechnology for measuring and manipulating genetic information.
• Describe the principles behind nucleic acid amplification, sequencing technologies, and genome editing.
• Interpret data such as read mappings and expression profiles to infer gene functions.+ Show more

Learning Objectives

• Explain the principles behind molecular techniques such as nucleic acid amplification, sequencing, and genome editing.
• Identify the type of data generated by various molecular methods and how it informs genetic function.
• Evaluate interpretative limits and evidence criteria when linking molecular data to biological conclusions.+ Show more

Learning Objectives

• Understand the concept of chemical equilibrium as a dynamic balance between forward and reverse reactions.
• Interpret the equilibrium constant as a measure of reaction position and extent.
• Relate concentration- and pressure-based expressions to reaction direction and shifts.+ Show more

Learning Objectives

• Describe the structural features of prokaryotic and eukaryotic cells and their functional significance.
• Identify the key organelles within the cell and their roles in cell processes.
• Compare and contrast cellular components such as mitochondria, chloroplasts, endoplasmic reticulum, and bacterial cell envelopes.+ Show more

Learning Objectives

• Explain how matter cycles through ecosystems via biogeochemical pathways that connect atmospheric, aquatic, and soil reservoirs
• Describe key steps in the carbon cycle and the nitrogen cycle, including photosynthesis, respiration, nitrogen fixation, nitrification, assimilation, and denitrification
• Compare energy flow (one-directional) with matter cycling (reusable through transformations)+ Show more

Learning Objectives

• Identify key components involved in gene regulation
• Understand how signaling pathways influence gene expression
• Describe the role of epigenetic modifications in gene activity+ Show more

Learning Objectives

• Explain how alleles are passed from parents to offspring during meiosis and fertilization
• Use Punnett-square probability reasoning to predict monohybrid genotype and phenotype ratios
• Connect genotype to phenotype by interpreting dominance relationships+ Show more

Learning Objectives

• Describe how atomic structure influences element properties.
• Identify patterns in the periodic table related to atomic size, electronegativity, and ionization energy.
• Explain the relationships between electron arrangements and elemental reactivity.

Learning Objectives

• Describe the double helix structure of DNA and the role of nucleotide monomers.
• Explain how phosphodiester backbones and hydrogen bonds contribute to DNA stability.
• Identify examples of genetic material in local Alberta species and discuss their molecular architecture.+ Show more

Learning Objectives

• Describe different types of community interactions such as competition, predation, parasitism, mutualism, and commensalism.
• Explain how energy flows through food webs and how trophic efficiency influences ecosystem biomass distribution.
• Analyze real-world examples from Alberta ecosystems to understand the impact of biotic interactions on community structure and ecosystem resilience.+ Show more

Learning Objectives

• Explain the key ecosystem processes including primary productivity, decomposition, and nutrient cycling.
• Describe biogeochemical cycles of carbon, nitrogen, and phosphorus.
• Apply Alberta-specific ecosystem examples to real-world land-use and climate change scenarios.+ Show more

Learning Objectives

• Describe the key factors influencing population size and structure over time.
• Apply models such as exponential and logistic growth to real-world scenarios.
• Differentiate between density-dependent and density-independent factors affecting populations.+ Show more

Learning Objectives

• Understand the different mechanisms that lead to speciation such as allopatric, sympatric, and peripatric modes.
• Explain how geographic, ecological, and genetic factors contribute to reproductive isolation and diversification.
• Analyze real-world examples of speciation in Alberta's alpine plants and insects.+ Show more

Learning Objectives

• Analyze key ethical issues related to biotechnology applications such as cloning and genome editing.
• Evaluate legal and social considerations surrounding biotechnology deployment in Alberta.
• Identify regulatory frameworks and community engagement processes shaping biotechnology innovations.

Learning Objectives

• Explain how molecular genetics, gene regulation, and evolutionary mechanisms influence biological outcomes.
• Analyze real-world examples, such as herbicide resistance in weeds, to understand mutation and selection.
• Link DNA variation to expression patterns, fitness consequences, and ecosystem effects for holistic biological assessment.+ Show more

Learning Objectives

• Identify various lines of evidence supporting the theory of evolution.
• Explain how fossil records, morphology, biogeography, and molecular data inform evolutionary relationships.
• Recognize Alberta exemplars, such as Dinosaur Provincial Park fossils, demonstrating deep-time biological change.+ Show more

Learning Objectives

• Explain the concepts of oxidation and reduction and their role in redox reactions.
• Identify oxidizing and reducing agents in various chemical reactions.
• Track electron transfer using oxidation states in balancing redox equations.+ Show more

Learning Objectives

• Understand the role of limiting reagents in chemical reactions.
• Calculate theoretical yields and percent yields based on stoichiometric ratios.
• Identify excess reagents and analyze the impact on reaction efficiency.+ Show more

Learning Objectives

• Explain how fossil records, comparative anatomy, biogeography, and genetics provide evidence for evolution.
• Describe how patterns of similarity and difference among organisms support common descent.
• Use multiple lines of evidence to justify the conclusion that evolution continues to shape biodiversity.

Learning Objectives

• Explain how energy moves through trophic levels in an ecosystem and why it decreases at higher levels.
• Describe how matter cycling connects producers, consumers, and decomposers.
• Use trophic relationships to predict how changes in one part of an ecosystem can affect others.

Learning Objectives

• Explain how codominance and incomplete dominance produce heterozygote phenotypes that differ from simple dominance
• Describe how allele recombination during meiosis affects genotype combinations and therefore probabilities of phenotypic outcomes
• Analyze polygenic (multiple-gene) inheritance patterns by connecting genotype contributions to measurable traits

Learning Objectives

• Explain how genetic information in DNA is used to produce messenger RNA (transcription).
• Describe how codons in mRNA guide translation into a polypeptide using ribosomes and tRNAs.
• Connect the sequence of nucleotides to amino acid sequence and ultimately to protein structure and function.+ Show more

Learning Objectives

• Explain how differential survival and reproduction change allele frequencies across generations.
• Connect inherited variation in phenotypes to natural selection in specific environments.
• Distinguish adaptation through natural selection from changes caused by an individual’s lifetime.+ Show more

Learning Objectives

• Define and explain the concepts of linear momentum and impulse as conserved quantities in isolated systems.
• Describe the differences between elastic and inelastic collisions using algebraic and vector models.
• Relate pre- and post-collision velocities through impulse–momentum relations and analyze center-of-mass motion.+ Show more

Learning Objectives

• Identify the main components of DNA
• Describe the double helix structure of DNA
• Explain the significance of nucleotide sequences+ Show more