Grade 12 Science Worksheets

Learning Objectives

• Understand the importance of evidence in supporting scientific claims
• Identify various types of observations and data used in constructing explanations
• Learn how to evaluate and address alternative explanations+ Show more

Learning Objectives

• Define what an engineering trade-off is.
• Identify common trade-offs in engineered systems.
• Analyze how trade-offs affect system performance and safety.+ Show more

Learning Objectives

• Explain how galaxy redshift provides evidence for an expanding universe
• Describe how gravity and the contents of the universe affect the expansion history
• Connect the expansion model to measurements of the universe’s age, size scale, and structure formation+ Show more

Learning Objectives

• Understand the concept of redshift in galaxies
• Describe how spectral lines shift due to cosmic expansion
• Interpret observational data supporting the expansion of the universe+ Show more

Learning Objectives

• Explain how mutations create new alleles and how these alleles can be inherited across generations.
• Describe how sexual reproduction reshuffles alleles through recombination and independent assortment.
• Connect allele frequency changes in populations to micro-level genetic events and macro-level evolution.+ Show more

Learning Objectives

• Understand the purpose and importance of models in science
• Identify different types of scientific models
• Recognize the limitations and assumptions of models+ Show more

Learning Objectives

• Understand different approaches to climate modeling including energy-balance and circulation models.
• Describe parameterization of radiative transfer, cloud feedbacks, and ocean–atmosphere coupling.
• Explain how models are validated using paleoclimate data, instrumental records, and sensitivity experiments.+ Show more

Learning Objectives

• Explain how kinetic and potential energy exchange in simple harmonic motion for springs and pendulums
• Use energy and phase-space ideas to interpret amplitude, period, and mechanical energy changes
• Describe how damping affects energy dissipation and how to quantify energy loss per cycle

Learning Objectives

• Explain how superposition, original horizontality, lateral continuity, and cross-cutting relationships are used in relative dating.
• Interpret unconformities and rock-gap evidence to determine missing time in the geologic record.
• Use fossil assemblages to correlate distant rock layers and build relative geologic timelines.

Learning Objectives

• Describe the structure and function of nucleic acids, including base pairing and replication mechanisms.
• Explain the molecular basis of mutation, genome organization, and the impact of sequence variation.
• Understand models of chromosomal structure, plasmid architecture, and the consequences of sequence changes for genetic information flow.

Learning Objectives

• Explain how the atmosphere and oceans exchange heat, moisture, and gases to influence weather and climate
• Describe how global circulation and ocean currents redistribute energy across Earth
• Analyze how feedbacks between ocean temperatures and atmospheric conditions can amplify climate trends+ Show more

Learning Objectives

• Define independent, dependent, and confounding variables
• Identify variables within experimental scenarios
• Understand strategies for controlling variables, including randomization and blinding+ Show more

Learning Objectives

• Explain why centripetal acceleration occurs during circular motion even when speed remains constant
• Describe how net force direction determines centripetal acceleration in uniform circular motion
• Use relationships among orbital radius, speed, and mass to predict how changes affect required inward force+ Show more

Learning Objectives

• Understand the basic steps of scientific inquiry
• Recognize the importance of asking clear questions
• Identify how data and evidence support scientific explanations+ Show more

Learning Objectives

• Describe how wave models use wavelength, frequency, amplitude, and period to predict wave behavior
• Differentiate transverse and longitudinal waves and connect each to real-world examples
• Explain superposition, interference, and dispersion using wave-parameter reasoning+ Show more

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 energy flow through trophic levels and matter cycling within ecosystems.
• Identify key components of ecosystem networks, including producers, consumers, and decomposers.
• Analyze the impact of biogeochemical cycles and human activities on nutrient fluxes.+ Show more

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 ocean currents, upwelling, and sea surface temperatures influence regional weather and climate.
• Describe how global atmospheric circulation redistributes heat and moisture across Earth’s surface.
• Analyze feedbacks between atmospheric conditions and ocean temperatures that can amplify climate trends.+ Show more

Learning Objectives

• Explain how heating curves show temperature plateaus during melting and boiling
• Use the particle model to describe energy changes during phase transitions
• Compare solid, liquid, and gas particle interactions as temperature changes+ Show more

Learning Objectives

• Explain how trophic relationships determine energy flow and influence food-chain length and ecosystem productivity
• Identify how keystone species and trophic cascades can reshape community structure
• Describe how biogeochemical cycles link organism processes with abiotic reservoirs to regulate nutrient availability

Learning Objectives

• Understand the key components and structure of formal scientific reports.
• Identify proper organization including Abstract, Introduction, Methods, Results, and Discussion sections.
• Apply conventions of proper scientific voice, tense, and citation style.+ Show more

Learning Objectives

• Explain how gravitational force and motion models account for predictable orbital paths
• Interpret relationships among orbital period, orbital speed, and orbital radius in a gravity-based framework
• Use observational evidence from planets, natural satellites, and exoplanets to support gravitational trajectory models

Learning Objectives

• Explain key measurement ideas using SI units, calibration, and instrument response.
• Distinguish precision from accuracy and identify sources of systematic versus random error.
• Interpret significant figures and traceability to measurement standards to support data quality.+ Show more

Learning Objectives

• Explain how models are constructed, parameterized, and calibrated to represent real systems
• Use model validation and sensitivity analysis to judge how trustworthy model predictions are
• Identify the roles of boundary conditions, assumptions, and uncertainty in interpreting modeling results

Learning Objectives

• Explain semi-conservative DNA replication and how parental strands template complementary new strands.
• Describe the roles of helicase, primase, and DNA polymerase in coordinating replication steps.
• Evaluate how proofreading and repair mechanisms maintain replication fidelity and reduce mutation rates.+ Show more

Learning Objectives

• Understand the importance of safety standards in engineering design.
• Identify failure modes and how standards help prevent failures.
• Explain how protective design reduces harm during normal and extreme events.+ Show more

Learning Objectives

• Summarize the key processes involved in the formation and evolution of the Solar System.
• Identify observational evidence used in studying planetary characteristics and formation theories.
• Explain the concepts of accretion, planetary differentiation, and protoplanetary disks.+ Show more

Learning Objectives

• Explain how measurable performance metrics and constraints are used to formulate engineering optimization problems
• Identify examples of metrics (e.g., mass, drag, noise, energy output) and describe how they can conflict
• Describe how design margins and robustness help ensure performance remains acceptable under uncertainty+ Show more

Learning Objectives

• Analyze and interpret atomic radius, ionization energy, electron affinity, and electronegativity trends across periods and groups.
• Explain the concepts of effective nuclear charge, shielding effect, and electron configuration in relation to periodic trends.
• Compare the properties of alkali metals, transition metals, and halogens based on periodic patterns.+ Show more

Learning Objectives

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

Learning Objectives

• Identify key performance metrics used in scientific design and optimization.
• Understand how different performance criteria influence engineering decisions.
• Analyze the impact of optimizing multiple metrics simultaneously.+ 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

• Understand how greenhouse gases influence Earth's climate
• Identify natural and human factors affecting global temperature
• Explain the role of aerosols, volcanic eruptions, and ocean cycles in climate variability+ Show more

Learning Objectives

• Understand the concept of ionic bonding
• Identify ionic bonds in various chemical compounds
• Differentiate between ionic and other bond types+ Show more

Learning Objectives

• Understand the role of observation in scientific inquiry
• Formulate clear, testable questions based on observations
• Recognize how evidence supports scientific claims+ Show more

Learning Objectives

• Describe the early development of atomic models and the evidence supporting them.
• Identify key features of Rutherford's nuclear model and Dalton's atomic theory.
• Explain how spectral lines and scattering experiments provide evidence for discrete energy levels and nuclear structure.+ Show more

Learning Objectives

• Explain how resource availability and environmental limits shape population size and carrying capacity
• Predict how birth rate, death rate, and per-capita resources change as population approaches carrying capacity
• Use simple mathematical reasoning to connect growth assumptions to expected population outcomes

Learning Objectives

• Explain how enthalpy change relates to heat flow during chemical reactions at constant pressure and in calorimetry experiments
• Use calorimetry data to determine enthalpy changes and interpret exothermic versus endothermic reactions
• Apply standard enthalpies of formation and reaction to Hess’s law for multi-step reaction pathways

Learning Objectives

• Explain how different mutation types (point substitutions, insertions, deletions, and chromosomal rearrangements) can change gene products.
• Predict possible consequences of mutations, ranging from silent effects to frameshifts and altered protein function.
• Describe how mutational outcomes can affect crop traits, livestock genetics, and pathogen variation in Alberta.+ Show more

Learning Objectives

• Distinguish evidence-based scientific claims from opinions that lack empirical support
• Identify how reliable claims connect evidence, mechanisms, and testable predictions
• Explain why scientific explanations can change when new data conflict with older models+ Show more

Learning Objectives

• Understand how reactant concentration affects collision frequency
• Explain the relationship between temperature and reaction rate
• Describe how surface area influences particle interactions+ Show more

Learning Objectives

• Define and explain linear momentum and impulse
• Relate momentum and impulse in isolated systems
• Describe conservation of momentum in elastic and inelastic collisions+ 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

• Define chemical equilibrium as a dynamic balance between forward and reverse reactions.
• Explain the concept of the equilibrium constant and how it quantifies reaction position.
• Understand how changes in concentration and pressure affect the equilibrium state.+ Show more

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

• Understand how mutations contribute to genetic diversity.
• Identify different types of mutations introduced into DNA.
• Explain how recombination during meiosis increases variation.+ Show more

Learning Objectives

• Explain how mass defect in nuclear reactions relates to energy released or absorbed.
• Use conservation of mass/energy and particle counts to describe nuclear decay and nuclear reactions.
• Interpret binding energy and radiation energy as evidence of changes in nuclear structure.