Grade 12 Science Worksheets

Learning Objectives

• Understand the fundamental principles of reflection and refraction in optics.
• Describe how ray models are used to analyze image formation.
• Apply Snell's law to calculate angles of refraction at interfaces.+ Show more

Learning Objectives

• Explain how nucleic acid amplification (e.g., PCR) and sequencing generate measurable biological data.
• Interpret how sequencing read mappings and expression profiles support or limit conclusions about genetic function.
• Compare genome modification approaches (conceptually) and describe evidence criteria for linking edits to outcomes.

Learning Objectives

• Explain the concepts of simple harmonic motion, resonance, and damping in oscillatory systems.
• Describe how non-conservative forces such as friction and air resistance affect energy transfer and amplitude in oscillations.
• Analyze how driven oscillators exchange energy with external drivers and determine steady-state amplitudes based on system parameters.+ Show more

Learning Objectives

• Describe the processes of transcription and translation in gene expression.
• Explain how gene expression is regulated at multiple levels.
• Identify roles of promoters, enhancers, repressors, and epigenetic modifications.+ Show more

Learning Objectives

• Identify Earth’s internal layers (crust, mantle, outer core, inner core) and describe key properties of each.
• Explain how seismic-wave observations provide evidence for layer boundaries and internal composition.
• Use evidence-based reasoning to connect seismic records and density/phase changes to tectonic and geodynamic processes.

Learning Objectives

• Explain how natural selection changes allele frequencies across generations when traits are heritable.
• Use evidence from population and trait data to justify that selection is acting on variation.
• Compare different lines of evidence, such as antibiotic resistance and island beak variation, and connect them to differential fitness.

Learning Objectives

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

Learning Objectives

• Understand the stages involved in scientific investigation from observation to conclusion.
• Identify the roles of hypothesis formulation, variable control, and operational definitions.
• Differentiate between qualitative and quantitative approaches in scientific research.+ Show more

Learning Objectives

• Describe how species richness, functional diversity, and trophic structure shape ecosystem stability and resilience.
• Explain how carrying capacity and population regulation influence recovery after disturbances.
• Analyze how disturbance regimes and habitat fragmentation affect resistance, recovery, and ecosystem service continuity.

Learning Objectives

• Explain the organization of pigments within photosynthetic membranes and their role in capturing light energy.
• Describe the electron transport chain and how it converts light energy into chemical energy.
• Analyze the coupling between light reactions and the Calvin cycle in carbon fixation.+ Show more

Learning Objectives

• Describe the different evidence types used in geological reconstruction, including stratigraphy, radiometric ages, paleomagnetic data, structural relationships, and fossil records.
• Explain how multiple evidence types are integrated to produce coherent histories of tectonic processes.
• Identify methods for correlating surface and deep Earth processes in geological history.+ Show more

Learning Objectives

• Understand the fundamental principles of natural selection and how environmental pressures influence evolution.
• Identify different patterns of selection such as directional, stabilizing, and disruptive selection.
• Explain observable examples of natural selection, including antibiotic resistance and adaptation.+ Show more

Learning Objectives

• Understand the historical development of atomic models from Dalton to Bohr.
• Explain empirical evidence such as cathode ray experiments and gold foil scattering.
• Describe concepts of nuclear charge, mass number, and isotopic abundance.+ Show more

Learning Objectives

• Understand the principles of energy transfer in thermal systems.
• Apply calorimetry reasoning to analyze heat exchange.
• Describe how energy conservation applies to physical and chemical changes.+ Show more

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

• Analyze multi-body systems with constraints using equations and internal force relations.
• Understand pulley, mass configurations, and rigid-body approximations in system dynamics.
• Model motion of center of mass and interpret free-body diagrams for system components.+ Show more

Learning Objectives

• Understand and apply the mole concept to relate mass, moles, and particles.
• Perform calculations involving molar mass, empirical and molecular formulas, and percent composition.
• Solve limiting reagent, theoretical yield, and percent yield problems using stoichiometric relationships.+ Show more

Learning Objectives

• Understand the relationship between force, mass, and acceleration as described by Newton's laws.
• Apply free-body diagrams to analyze complex force systems acting on terrestrial objects.
• Calculate net forces and predict motion of equipment and structures under various forces, including friction and drag.+ Show more

Learning Objectives

• Understand the historical development of atomic theories
• Identify key contributors and their models
• Recognize evidence supporting the modern atomic model

Learning Objectives

• Understand the basic concepts of wave interference, including constructive and destructive interference.
• Identify the conditions necessary for coherence in wave sources.
• Describe the patterns produced by single-slit and double-slit diffraction.+ Show more

Learning Objectives

• Explain the fundamental principles linking electric charges, currents, and magnetic fields.
• Describe how time-varying electric and magnetic fields produce propagating electromagnetic waves.
• Identify the relationship between light and electromagnetic waves across different wavelengths.+ Show more

Learning Objectives

• Understand the main components and processes involved in biogeochemical cycles.
• Identify how elements like carbon, nitrogen, and phosphorus move through ecosystems.
• Explain the impact of human activities on natural biogeochemical cycles.+ Show more

Learning Objectives

• Understand different types of evidence supporting evolution
• Analyze fossil records and what they reveal about past life
• Evaluate how molecular data supports evolutionary relationships+ Show more

Learning Objectives

• Understand the basic principles of biotechnology ethics
• Identify key issues related to cloning, genome editing, and recombinant organisms
• Recognize ethical, legal, and social considerations in biotechnology applications

Learning Objectives

• Understand mutation as a source of genetic variation
• Identify how mutations influence evolution
• Explore the relationship between mutation and adaptation+ Show more

Learning Objectives

• Understand the fundamental processes of transcription and translation
• Identify key components involved in gene regulation such as promoters, enhancers, and transcription factors
• Explain how epigenetic modifications influence gene expression+ Show more

Learning Objectives

• Understand the concept of reproductive isolation in speciation
• Identify different modes of speciation, with a focus on allopatric speciation
• Recognize geographic barriers as drivers of species divergence+ Show more

Learning Objectives

• Understand how mutations contribute to genetic variation and evolutionary change.
• Identify different types of mutations and their potential impact on an organism.
• Explain how gene regulation influences phenotype and adaptation.+ Show more

Learning Objectives

• Understand different types of community interactions such as competition, predation, parasitism, mutualism, and commensalism.
• Analyze how energy flow and trophic relationships influence ecological communities.
• Examine real-world examples like aspen-mycorrhizal associations and wolf-elk-vegetation cascades.+ Show more

Learning Objectives

• Understand the components involved in gene regulation and how they interact.
• Identify different types of regulatory molecules such as transcription factors and noncoding RNAs.
• Explain how epigenetic modifications influence gene expression.+ Show more

Learning Objectives

• Identify factors that influence population size
• Understand models of population growth
• Analyze the effects of environmental factors on populations

Learning Objectives

• Understand the basic concepts of recombinant DNA techniques
• Identify common tools used in genetic modification
• Explain how recombinant methods are applied in real-world scenarios

Learning Objectives

• Understand the components of translating scientific findings into accessible formats for the public.
• Identify key principles for accurate and ethical science communication.
• Analyze different messaging strategies for various stakeholder audiences.+ Show more

Learning Objectives

• Understand the processes involved in the transport and transformation of chemicals in soil and water systems.
• Identify factors influencing contaminant partitioning, degradation rates, and long-term persistence.
• Analyze case studies related to agricultural runoff and petrochemical spills to understand contaminant pathways.+ Show more

Learning Objectives

• Explain how radiative forcing changes Earth’s energy balance and can influence regional climate.
• Describe sources and sinks of greenhouse gases and how they affect atmospheric concentrations over time.
• Analyze how aerosols and clouds interact with radiation and water vapor to affect air quality and climate.+ Show more

Learning Objectives

• Understand the application of molecular markers and genetic metrics in conservation efforts.
• Identify key genetic concepts such as heterozygosity, gene flow, and inbreeding in fragmented populations.
• Analyze case studies involving boreal caribou and prairie remnants to evaluate genetic health and conservation strategies.+ Show more

Learning Objectives

• Explain how convergent plate interactions produce mountain building (orogeny) through deformation, metamorphism, and magmatism.
• Compare mountain-building outcomes from subduction zones versus continent-continent collision.
• Use rock structures and metamorphic patterns to infer the timing and intensity of past tectonic events.

Learning Objectives

• Understand the trends of effective nuclear charge, atomic radius, ionization energy, and electronegativity across periods and groups.
• Relate periodic properties to electronic structure and observable chemical behaviors such as metallic character and reactivity.
• Use graphical and tabular data to predict element properties based on position in the periodic table.

Learning Objectives

• Understand molecular interactions and energy transfer mechanisms
• Construct basic molecular models illustrating energy flow
• Analyze how molecular processes influence cellular and larger system behaviors+ Show more

Learning Objectives

• Understand the relationship between mass defect and energy release in nuclear processes.
• Explain how conservation principles apply to decay chains, fusion, and fission.
• Describe the concept of binding energy and its role in nuclear stability.+ Show more

Learning Objectives

• Understand key principles and norms for effective oral scientific presentations and poster sessions.
• Identify strategies for concise communication, slide design, and visual-spoken integration.
• Learn how to clearly present hypotheses, interpret data, and use disciplinary terminology appropriately.+ Show more

Learning Objectives

• Understand the components and functions of regulatory networks in gene expression.
• Describe how epigenetic modifications influence gene activity across different conditions.
• Analyze examples of regulatory networks in plants and animals relevant to biotechnology.+ Show more

Learning Objectives

• Understand the relationship between voltage, current, and resistance in simple circuits
• Interpret basic circuit diagrams and identify key quantities
• Apply Ohm's Law to solve for unknown values in resistive circuits+ Show more

Learning Objectives

• Understand the mechanisms driving ocean currents such as thermohaline and wind-driven circulation.
• Identify the features of surface gyres, upwelling, and the meridional overturning circulation.
• Explain how ocean circulation influences regional and global climate patterns.+ Show more

Learning Objectives

• Understand the basic concepts of oxidation, reduction, and electron transfer.
• Identify oxidizing and reducing agents in chemical reactions.
• Apply half-reaction methods to balance redox equations.+ Show more

Learning Objectives

• Describe the organization of pigments and electron transport chains in photosynthesis.
• Explain the coupling of light energy capture to the Calvin cycle and carbon fixation.
• Analyze energy budgets, quantum yield, and flux measurements in photosynthesis.+ Show more

Learning Objectives

• Use ray diagrams and the law of reflection to predict light directions at surfaces.
• Apply Snell’s law to determine refraction angles and interpret physical bending of rays.
• Use thin-lens and magnification equations to predict image position and orientation.+ Show more

Learning Objectives

• Understand the principle of conservation of atoms in chemical reactions.
• Recognize that atoms are neither created nor destroyed during reactions.
• Learn how to balance chemical equations based on atom conservation.+ Show more