Grade 12 Science Worksheets

Learning Objectives

• Understand the chemical basis of biological macromolecules and how their structure determines function.
• Explain protein folding, nucleic acid complementarity, and the roles of carbohydrates and lipids.
• Describe the physicochemical properties influencing molecular interactions and cellular processes.+ Show more

Learning Objectives

• Explain the components of atomic models including protons, neutrons, and electrons.
• Describe electron configurations and their impact on element properties.
• Identify the shapes of atomic orbitals and the order of subshell filling.+ Show more

Learning Objectives

• Describe the processes of mitosis and meiosis and their roles in cellular reproduction.
• Explain chromosome segregation, homologous recombination, and mechanisms preventing nondisjunction.
• Identify structural and functional differences between haploid and diploid cells during division.+ Show more

Learning Objectives

• Explain how criteria guide iterative engineering design cycles
• Describe how testing results support design adjustments
• Identify design changes that improve performance within limits+ Show more

Learning Objectives

• Explain how genetic drift can change allele frequencies through random sampling in finite populations.
• Compare the effects of selection and drift on allele frequencies over time.
• Use probability-based reasoning to interpret how allele frequency patterns can arise without deterministic advantage.

Learning Objectives

• Identify major observable evidence that a chemical reaction has occurred (gas, color change, precipitate, and temperature change).
• Explain how particle-level models support reaction evidence through bond breaking and bond forming while conserving total atoms.
• Differentiate endothermic and exothermic processes using temperature changes and microscopic reasoning.+ Show more

Learning Objectives

• Explain how different types of mutations (substitutions, insertions/deletions, and chromosomal changes) can alter genes and proteins
• Analyze how DNA-level changes can lead to phenotypic variation through effects on gene function and regulation
• Evaluate why mutation provides raw material for natural selection and evolution under environmental pressures

Learning Objectives

• Understand the different definitions of acids and bases: Arrhenius, Brønsted–Lowry, and Lewis models.
• Differentiate between strong and weak acids and bases and their behaviors in solutions.
• Interpret pH and pOH relationships and their significance in acid-base chemistry.+ Show more

Learning Objectives

• Analyze multi-body systems with constraints using constraint equations.
• Apply free-body diagrams to system components to determine internal forces and accelerations.
• Understand pulley and connected-mass configurations within rigid-body approximations.+ Show more

Learning Objectives

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

Learning Objectives

• Explain how natural selection and other processes change allele frequencies over time.
• Differentiate genetic drift, gene flow, and natural selection in terms of mechanisms and outcomes.
• Predict how population size and migration can affect genetic relatedness and diversification.+ Show more

Learning Objectives

• Understand the basic components and functions of galvanic and electrolytic cells
• Explain the concept of cell potential and how it is measured
• Describe the role of electrode potentials and how they contribute to cell voltage+ Show more

Learning Objectives

• Explain equilibrium in terms of net force and acceleration, including cases with constant velocity.
• Apply vector reasoning to determine when multiple forces are balanced in different directions.
• Interpret real-world scenarios (tension, normal force, and weight) using force diagrams and sign conventions.+ Show more

Learning Objectives

• Understand the different types of genetic mutations
• Identify how mutations can alter gene function
• Recognize the role of mutations in evolution and adaptation

Learning Objectives

• Understand how biological, chemical, and physical concepts interact in environmental phenomena.
• Analyze complex regional issues such as algal blooms and tailings behavior through interdisciplinary reasoning.
• Apply principles from multiple sciences to explain environmental patterns and management challenges in Alberta landscapes.

Learning Objectives

• Explain principles of metabolic pathway control including enzyme kinetics and allosteric modulation.
• Describe feedback inhibition and hormonal regulation mechanisms maintaining homeostasis.
• Distinguish regulation at transcriptional, translational, and post-translational levels.+ Show more

Learning Objectives

• Explain how heating and work transfer energy to change a system’s internal energy (ΔU) without changing or with changing the system’s state.
• Analyze how pressure–volume conditions affect the energy required for the same temperature change.
• Use energy accounting ideas to predict temperature response, expansion, and phase-change behavior under different thermodynamic constraints.

Learning Objectives

• Explain how photosynthetic pigments and membrane organization enable light-driven electron transport in chloroplasts.
• Connect electron transport energy conversion to the Calvin cycle and carbon fixation.
• Use energy budget and quantum yield ideas to relate photon input to biochemical outputs such as CO2 fixation rate.+ Show more

Learning Objectives

• Explain the basic structure of Earth's interior
• Describe how tectonic plates move and interact
• Understand the processes leading to earthquakes, volcanoes, and mountain building+ Show more

Learning Objectives

• Understand how atomic radius varies across periods and down groups in the periodic table.
• Analyze factors like nuclear charge and electron shielding influencing atomic size.
• Interpret graphical and tabular data related to periodic trends.+ Show more

Learning Objectives

• Explain how scientific evidence influences social and environmental outcomes
• Explain how technological capacity affects social and environmental outcomes
• Evaluate trade-offs among economic, environmental, and social factors+ Show more

Learning Objectives

• Understand the molecular mechanisms that generate genetic variation such as mutations and recombination.
• Explain how genetic variation influences phenotypes and evolution.
• Differentiate between single-gene inheritance and polygenic traits.+ Show more

Learning Objectives

• Explain how cross-disciplinary evidence supports defensible decisions
• Compare options using multiple decision-making criteria
• Identify sources of uncertainty in scientific evidence+ Show more

Learning Objectives

• Understand the definitions of acids and bases according to Arrhenius, Brønsted–Lowry, and Lewis.
• Identify strong and weak acids and bases.
• Learn about conjugate acid-base pairs and pH/pOH relationships.+ Show more

Learning Objectives

• Use equilibrium constants (Kc and Kp) to quantify composition at equilibrium
• Calculate and interpret the reaction quotient Q to predict the direction of net reaction
• Explain how temperature affects equilibrium constants using thermodynamic ideas (ΔG°, ΔH°, ΔS°)

Learning Objectives

• Define geological time and explain its significance in Earth history.
• Identify different methods used to establish Earth's timeline.
• Recognize the importance of fossils and radiometric dating in understanding Earth's past.+ Show more

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

• Understand how to effectively translate scientific findings for diverse audiences.
• Identify key principles of accurate risk communication and avoids overstating claims.
• Learn strategies for framing messages for different stakeholders and the role of visual summaries.

Learning Objectives

• Explain how molecular markers are used to estimate genetic diversity, inbreeding, effective population size, and gene flow in fragmented populations.
• Interpret genetic metrics (e.g., heterozygosity and genetic structure) to assess demographic and long-term extinction risk.
• Justify conservation planning decisions such as habitat corridors and translocations using conservation genetics evidence.

Learning Objectives

• Use the mole concept to convert between mass, moles, and particle counts.
• Apply molar mass and balanced chemical equations to relate reactant and product quantities.
• Determine the limiting reactant and calculate theoretical yield from stoichiometric ratios.+ Show more

Learning Objectives

• Explain how reactant concentration affects reaction rate through collision frequency and successful collisions
• Use temperature and activation energy ideas to predict how changes in kinetic energy influence reaction rate
• Analyze the role of surface area in heterogeneous reactions by connecting it to collision opportunities

Learning Objectives

• Explain how scientific evidence can inform technological choices in regional STSE contexts.
• Analyze trade-offs among environmental impact, economic drivers, and social values.
• Evaluate how regulations and policy decisions influence outcomes in technology and society.+ Show more

Learning Objectives

• Explain Newton’s Second Law by relating net force, mass, and acceleration.
• Determine how acceleration changes when net force increases/decreases or mass changes.
• Use vector reasoning to find the direction of acceleration from multiple forces.

Learning Objectives

• Explain energy system efficiency as a quantitative ratio of useful output to input energy
• Identify major loss pathways (especially heat dissipation) and how design choices reduce them
• Evaluate how insulation, surface area, and control systems improve performance in energy collectors

Learning Objectives

• Assign electron configurations using the orbital-filling order (Aufbau principle) and understand the role of quantum numbers (n and l) in determining subshells and orbitals.
• Apply Hund’s rule to predict how electrons distribute among degenerate orbitals and connect this to magnetic behavior and valence structure.
• Identify common exceptions in transition elements and use configuration notation to predict ion electron configurations and oxidation-state trends.

Learning Objectives

• Explain the processes of photosynthesis and cellular respiration and their roles in energy transformation.
• Describe how atoms are rearranged and energy is converted during these biological processes.
• Analyze the connection between cellular energy pathways and ecosystem energy flow.

Learning Objectives

• Explain how limited resources can restrict population growth in an ecosystem
• Describe carrying capacity as an environmental upper bound and connect it to births, deaths, and competition
• Interpret how models and equilibrium outcomes arise when resource availability changes

Learning Objectives

• Explain how scientific models represent systems and relate variables to observed patterns
• Differentiate between diagram, mathematical, and simulation models and describe what each is best used for
• Evaluate a model’s assumptions and limitations and justify how evidence can revise it+ Show more

Learning Objectives

• Explain how Aufbau, Pauli exclusion, and Hund’s rules determine electron configurations for main-group elements.
• Use electron configuration to predict valence electrons, periodic trends, and likely chemical behavior.
• Interpret how oxidation states and bonding tendencies relate to subshell filling and electron distribution.

Learning Objectives

• Explain how operational definitions make scientific measurement claims testable and repeatable.
• Use consistent units, calibration, and standardized protocols to reduce measurement error.
• Identify sources of measurement error (drift, bias, and systematic differences) and describe measurement controls.+ Show more

Learning Objectives

• Understand the concept of gravitational fields as long-range forces producing central accelerations.
• Explain the definitions of gravitational potential and potential energy in two-body systems.
• Describe how field strength varies with distance from mass sources.+ Show more

Learning Objectives

• Explain the relationship between impulse and change in momentum using vector ideas
• Use impulse as the area under a force–time graph to predict momentum change
• Compare how different force–time profiles can produce the same impulse

Learning Objectives

• Understand key concepts related to Science
• Apply knowledge through practice questions
• Demonstrate comprehension of the material

Learning Objectives

• Explain how natural selection, genetic drift, and gene flow each change allele frequencies in populations
• Analyze how drift, especially in small populations, can cause random fixation or loss of alleles
• Evaluate how gene flow affects genetic relatedness and diversification among populations+ Show more

Learning Objectives

• Use equilibrium constants to quantify reactant and product activity ratios at steady state.
• Compare reaction quotient Q with equilibrium constant K to predict the direction of net reaction.
• Relate temperature changes to shifts in equilibrium constants and link thermodynamics to equilibrium using Gibbs free energy.

Learning Objectives

• Explain equilibrium using the concept of net force being zero and relate it to acceleration
• Apply vector reasoning to determine when multiple forces balance in magnitude and direction
• Interpret real-world equilibrium examples such as tension supporting weight and steady motion

Learning Objectives

• Understand the concepts of oxidation and reduction in chemical reactions
• Identify oxidation and reduction processes in various chemical equations
• Learn the significance of oxidation states+ Show more

Learning Objectives

• Explain centripetal acceleration and how it changes velocity direction in circular motion.
• Apply the relationship between net inward force, speed, radius, and mass for orbits and rotating systems.
• Interpret and predict how changes in speed or radius affect centripetal force and acceleration.