Grade 12 Worksheets

Learning Objectives

• Explain the main forcings that influence climate variability and change.
• Identify and interpret radiative forcing metrics and feedback loops.
• Assess the role of ocean heat uptake in climate systems.+ Show more

Learning Objectives

• Understand the principles of quantum mechanics as they relate to electron configurations.
• Apply rules such as Aufbau, Pauli exclusion, and Hund’s rule to determine orbital diagrams.
• Explain the significance of electronic structures in chemical behavior and periodic table organization.+ Show more

Learning Objectives

• Understand the key organelles and structures within prokaryotic and eukaryotic cells.
• Describe the structure-function relationships of cellular components like mitochondria, chloroplasts, and the endoplasmic reticulum.
• Identify microscopy techniques used to study cellular organization and organelle morphology.+ Show more

Learning Objectives

• Compare surface processes and internal structures of terrestrial and icy planetary bodies.
• Identify geologic indicators such as cratering, volcanic features, and tectonic signatures.
• Understand how remote sensing, sample analysis, and in situ measurements inform planetary history.+ Show more

Learning Objectives

• Explain the interactions between atmosphere, hydrosphere, lithosphere, and cryosphere in Earth's climate system.
• Understand energy transfer mechanisms and matter cycling within Earth's systems.
• Analyze factors influencing radiative balance and albedo effects on climate variability.+ Show more

Learning Objectives

• Understand the pathways and exchange mechanisms of carbon and nitrogen in environmental systems.
• Analyze the processes of photosynthesis, respiration, and decomposition within biogeochemical cycles.
• Apply quantitative reasoning to reservoir exchange rates and steady-state concepts in ecological systems.+ Show more

Learning Objectives

• Understand the key patterns and causes of biodiversity loss such as habitat fragmentation, invasive species, overexploitation, and climate change.
• Describe various measures of biodiversity including species richness, evenness, functional and genetic diversity.
• Identify conservation strategies like protected areas, restoration ecology, and genetic management.+ Show more

Learning Objectives

• Analyze human activities impacting land, water, and air systems.
• Identify case phenomena such as agricultural runoff and point-source pollution.
• Evaluate metrics related to ecosystem degradation and human stressors.+ Show more

Learning Objectives

• Understand the purpose and process of constructing various types of models in science.
• Differentiate between deterministic and stochastic frameworks in system modeling.
• Apply concepts of dimensional analysis, scaling, and sensitivity testing to evaluate model robustness.+ Show more

Learning Objectives

• Understand the application of the first and second laws of thermodynamics to chemical systems.
• Interpret changes in internal energy, enthalpy, entropy, and Gibbs free energy to predict spontaneity and equilibrium.
• Analyze temperature dependence of reaction spontaneity and the coupling of reactions for energy conservation.+ Show more

Learning Objectives

• Understand methods for reconstructing evolutionary relationships including character matrix analysis and molecular sequence alignment.
• Identify how cladogram and phylogram inference contribute to understanding phylogenies.
• Explain the concepts of homology, monophyly, paraphyly, and polyphyly in taxonomic revision.+ Show more

Learning Objectives

• Understand the mechanisms of thermohaline and wind-driven ocean circulation.
• Identify how ocean currents influence regional climate and phenomena like El Niño.
• Explain the role of salinity, density stratification, and mixing in biogeochemical cycling.+ Show more

Learning Objectives

• Understand tradeoffs involved in environmental policy decisions such as mitigation, adaptation, and conservation.
• Apply cost–benefit and multi-criteria decision analysis methods to evaluate management strategies.
• Identify key indicators for monitoring policy outcomes and challenges in governance.

Learning Objectives

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

Learning Objectives

• Understand the key factors influencing large-scale atmospheric circulation patterns.
• Identify the roles of pressure gradients, the Coriolis force, and thermal structures.
• Describe major atmospheric phenomena such as jet streams, frontal systems, and convection cells.+ Show more

Learning Objectives

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

Learning Objectives

• Understand mechanisms such as natural selection, genetic drift, gene flow, and mutation that influence allele frequencies.
• Analyze case examples illustrating phenotypic shifts and evolutionary patterns in populations.
• Evaluate how population processes drive ecological interactions and biodiversity.+ Show more

Learning Objectives

• Explain the application of quantitative models such as Hardy–Weinberg equilibrium in studying evolution.
• Analyze how mutation, genetic drift, and recombination contribute to genetic variation.
• Interpret allele frequency trajectories, fitness landscapes, and likelihood-based inference in evolutionary contexts.+ 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

• Understand the roles of weathering, erosion, transport, and deposition in shaping landscapes.
• Analyze how climate, vegetation, and tectonic activity influence surface change rates.
• Interpret process-response diagrams and sediment budgets to assess landscape evolution.+ Show more

Learning Objectives

• Identify key drivers of sea level variability, including thermal expansion, land-ice loss, and glacio-isostatic adjustment.
• Interpret scientific data from tide-gauge and satellite records related to sea level trends.
• Understand the methods used to attribute causes of sea level change and assess uncertainties.+ Show more

Learning Objectives

• Understand the key processes involved in geologic and atmospheric hazards.
• Analyze how risk, vulnerability, and resilience interact in hazard scenarios.
• Evaluate approaches for hazard mitigation through planning and engineering.+ Show more

Learning Objectives

• Understand the fundamental quantities of electric charge, current, and potential difference.
• Analyze simple circuit models using resistors, voltage sources, and conductors.
• Apply Ohm's law and Kirchhoff’s laws to circuit analysis.+ Show more

Learning Objectives

• Understand the structure and function of nucleic acids.
• Explain mechanisms of DNA replication and repair pathways.
• Describe how mutations and sequence variations affect genetic information.+ Show more

Learning Objectives

• Understand the structure of evidence-based arguments, including claims, warrants, and backing.
• Analyze case studies related to species distribution and atmospheric CO2 trends to evaluate relevance and sufficiency of evidence.
• Learn how to integrate theoretical models and empirical data into coherent arguments.+ Show more

Learning Objectives

• Describe the roles of mitochondria, chloroplasts, endomembrane system, and peroxisomes in cellular metabolism.
• Compare the structure and function of various organelles involved in energy transformation and biosynthesis.
• Explain how organelle boundaries and transport systems influence metabolic fluxes and signal transduction.+ 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 the molecular mechanisms controlling gene expression, including transcription factors, epigenetics, and post-translational modifications.
• Analyze how promoter architecture and regulatory networks influence gene expression in response to internal signals.
• Describe the processes of alternative splicing and post-translational regulation and their impact on phenotypic variability.

Learning Objectives

• Understand the importance of proper attribution and authorship in scientific research.
• Identify best practices for data provenance, data archiving, and open data sharing.
• Recognize the significance of avoiding plagiarism through correct citation methods.+ Show more

Learning Objectives

• Understand the key components and structure of formal scientific reports.
• Identify proper conventions for abstracts, introductions, methods, results, and discussions.
• Evaluate the importance of reproducibility, proper citations, and clear data presentation.

Learning Objectives

• Understand the types of intermolecular forces and their molecular basis.
• Identify how London dispersion, dipole-dipole, and hydrogen bonds influence physical properties.
• Explain the role of intermolecular forces in phenomena like boiling points and protein folding.+ Show more

Learning Objectives

• Analyze societal implications of various scientific and technological choices.
• Evaluate benefits, harms, and distributional effects in case studies such as energy, healthcare, and data privacy.
• Understand governance frameworks and criteria for societal priorities in decision-making.+ Show more

Learning Objectives

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

Learning Objectives

• Understand key wave parameters such as wavelength, frequency, and amplitude.
• Explain the principles of superposition, interference, and standing waves.
• Analyze wave phenomena using sinusoidal and phasor representations.+ Show more

Learning Objectives

• Understand the components of projectile motion and how vectors decompose into horizontal and vertical parts.
• Apply equations of motion to analyze projectile trajectories and calculate range, maximum height, and time of flight.
• Connect assumptions of negligible air resistance and coordinate choices to solving projectile problems.+ Show more

Learning Objectives

• Describe the role of various scientific tools and instrumentation in hypothesis testing.
• Explain the principles and applications of PCR, DNA sequencing, and mass spectrometry.
• Assess the trade-offs between sensitivity, specificity, and resource constraints in technological choices.+ Show more

Learning Objectives

• Understand Le Chatelier’s principle and how it predicts the response of equilibrium systems to external stresses.
• Identify the effects of concentration, pressure, and temperature changes on chemical equilibria.
• Explain how catalysts influence reaction rates without shifting equilibrium position.+ Show more

Learning Objectives

• Understand how to calculate reaction enthalpies using standard enthalpies of formation and combustion.
• Apply Hess's law to algebraically combine enthalpy changes for complex reactions.
• Estimate approximate enthalpy changes using bond enthalpies for various reactions.+ Show more

Learning Objectives

• Understand the factors influencing reaction rates, including concentration, temperature, and molecular orientation.
• Explain collision theory and the concept of activation energy in chemical reactions.
• Describe rate laws, their experimental determination of reaction order, and the Arrhenius equation.+ Show more

Learning Objectives

• Understand how reproductive barriers lead to speciation in different environments.
• Identify the three main modes of speciation: allopatric, sympatric, and peripatric.
• Explain how geographic and ecological factors contribute to the diversification of species.+ Show more

Learning Objectives

• Understand key principles of translating scientific findings into accessible formats for the public.
• Identify strategies to communicate risks accurately without overstating claims.
• Evaluate the use of analogies, plain language, and visuals like infographics in science communication.+ Show more

Learning Objectives

• Define torque, moment of inertia, and angular momentum for rigid bodies.
• Develop equations relating net torque to angular acceleration.
• Analyze energy transfer between translational and rotational modes in rolling and compound systems.+ Show more

Learning Objectives

• Understand the principles of translating scientific findings into accessible formats for the general public.
• Identify ethical considerations and framing techniques in science communication.
• Describe the role of evidence summaries and infographics in supporting public understanding.+ Show more

Learning Objectives

• Understand the concept of plate tectonics and how it explains the movement of Earth's lithospheric plates.
• Identify the types of plate boundaries and their characteristic geological features.
• Explain processes such as sea-floor spreading, subduction zones, and fault systems.+ Show more

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

• Understand the methods used to organize Earth's history into geological intervals.
• Identify key tools such as stratigraphy, index fossils, and radiometric dating.
• Describe how Earth's atmospheric, oceanic, and biospheric changes relate over geological time.+ Show more

Learning Objectives

• Understand how magnetic and electromagnetic principles are applied in modern technology.
• Explain how Lorentz forces produce torque in electric motors.
• Describe how magnetic field gradients enable techniques such as magnetic resonance imaging.+ Show more

Learning Objectives

• Explain the concept of genetic drift and its effects on populations.
• Describe bottleneck and founder events and their impact on genetic diversity.
• Analyze how genetic drift influences allele frequencies over time.+ Show more