Grade 12 Science Worksheets

Learning Objectives

• Understand the methods used for resource distribution and quality evaluation.
• Identify environmental considerations in resource extraction.
• Analyze strategies for sustainable resource management.+ Show more

Learning Objectives

• Translate technical science findings into clear public messages that are accurate, balanced, and ethical.
• Apply risk-communication principles to avoid overstated or misleading claims.
• Select appropriate framing for different audiences and communicate uncertainty responsibly.+ Show more

Learning Objectives

• Understand the relationships between science, technology, society, and the environment through regional phenomena.
• Evaluate trade-offs among technological choices, economic drivers, environmental impacts, and social values.
• Analyze historical and contemporary examples of policy decisions and infrastructure projects in the context of societal priorities.

Learning Objectives

• Explain how radioactive decay dating uses half-life to estimate absolute ages of geologic materials.
• Describe the relationship between parent isotopes, daughter products, and elapsed time.
• Evaluate how radioactive dating complements relative dating in building geologic timelines.

Learning Objectives

• Understand how to evaluate competing design solutions using prioritized criteria.
• Analyze trade-offs among environmental, economic, and social impacts in system design.
• Apply evidence and data to support claims about performance and unintended consequences.+ Show more

Learning Objectives

• Explain the structure of DNA and how it encodes genetic information.
• Describe the process of base pairing and its significance in DNA stability.
• Understand how DNA sequences are read to produce proteins through transcription and translation.+ Show more

Learning Objectives

• Understand how full life cycle evaluation influences technological decision-making in sustainability.
• Analyze scientific mechanisms such as battery chemistry, thermal limits, and recovery efficiency relevant to engineering choices.
• Compare electric vehicle battery management and recycling approaches considering resource extraction, emissions, efficiency, failure risks, and end-of-life recovery.+ 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 reactions.
• Describe the concept of binding energy and its connection to nuclear stability.+ Show more

Learning Objectives

• Understand the nature of fields as spatial distributions exerting forces.
• Describe gravitational and electric fields as vector fields assigning force per unit mass or charge.
• Explain the concept of field lines and superposition of multiple sources.+ Show more

Learning Objectives

• Explain how governance and policy mechanisms influence the development and adoption of scientific and technological innovations.
• Analyze the roles of environmental impact assessment, technology standards, and interagency coordination in oversight and accountability.
• Evaluate risk assessment protocols and how foresight methods support adaptive, multi-stakeholder decision-making.

Learning Objectives

• Use Hardy–Weinberg equilibrium to predict genotype frequencies from allele frequencies.
• Explain how selection, migration, and genetic drift change allele and genotype frequencies over time.
• Interpret heterozygosity, effective population size, and fixation in the context of microevolution.

Learning Objectives

• Explain how radiative balance and albedo influence Earth’s energy budget and seasonal climate variability
• Describe how the hydrologic cycle transfers water between atmosphere, oceans, land, and ice as part of steady states and change
• Analyze how energy transfer and matter cycling interact across the atmosphere, hydrosphere, lithosphere, and cryosphere through feedback loops

Learning Objectives

• Interpret hypothesis tests by connecting assumptions to the meaning of p-values and decision rules.
• Construct and interpret confidence intervals, including how they reflect uncertainty and practical significance.
• Evaluate effect sizes, statistical power, and how they change conclusions beyond “significant/not significant.”+ Show more

Learning Objectives

• Explain how thermohaline and wind-driven processes drive large-scale ocean circulation and heat transport.
• Describe how salinity, temperature, density stratification, and mixing influence nutrient supply and carbon sequestration.
• Interpret how observational time series and tracer studies reveal circulation pathways and mixing timescales.+ Show more

Learning Objectives

• Explain how mutation, natural selection, genetic drift, and gene flow generate changes in allele frequencies within populations.
• Use adaptive landscapes and fitness concepts to predict how selection pressures can shift population traits over time.
• Connect population-level mechanisms to evidence from fossils, comparative anatomy, and molecular homology.

Learning Objectives

• Explain the principle of conservation of linear momentum in isolated systems.
• Define momentum and impulse, and describe their relationship.
• Differentiate between elastic and inelastic collisions based on momentum and energy transfer.+ Show more

Learning Objectives

• Formulate scientific claims grounded in evidence and clearly state the claim’s scope.
• Use warrants and qualifiers to connect evidence to conclusions responsibly.
• Evaluate competing hypotheses by weighing evidence strength across multiple lines of inquiry.+ Show more

Learning Objectives

• Explain how DNA sequence information connects to RNA and protein products during replication, transcription, and translation.
• Describe how promoter elements and transcriptional regulation shape patterns of gene expression.
• Compare mutation types and predict how they can affect phenotype through genotype-to-function pathways.+ Show more

Learning Objectives

• Describe different types of chemical bonds including ionic, covalent, and metallic bonding.
• Explain how electronegativity differences influence bond polarity.
• Understand the concepts of bond order, bond energy, and their relation to bond length and strength.+ 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

• Understand Le Chatelier's principle and how external stresses affect chemical equilibria.
• Identify how changes in concentration, pressure, and temperature influence system shifts.
• Explain the effect of catalysts on reaction rates without altering equilibrium positions.+ Show more

Learning Objectives

• Understand the assumptions and principles of the Hardy-Weinberg equilibrium.
• Calculate expected genotype frequencies using allele frequencies.
• Interpret deviations from Hardy-Weinberg expectations to infer evolutionary forces.+ Show more

Learning Objectives

• Explain the factors that influence reaction rates, including concentration, temperature, and molecular orientation.
• Describe collision theory and the role of activation energy in chemical reactions.
• Interpret rate laws and how they relate reaction rate to reactant concentrations.+ Show more

Learning Objectives

• Understand the processes involved in Earth's geologic time scale, including tectonic activity, mountain building, earthquakes, and volcanism.
• Explain how surface processes like weathering and erosion reshape landforms over time.
• Connect present geological features to past events through analysis of Earth's evolving structure.

Learning Objectives

• Understand key techniques used in biotechnology such as recombinant DNA, PCR, DNA sequencing, and genome editing.
• Identify various applications of biotechnology in medicine, agriculture, and industry.
• Analyze ethical considerations related to the use of biotechnological methods and products.+ Show more

Learning Objectives

• Understand the concept of phylogenetic trees and their role in illustrating evolutionary relationships.
• Learn how morphological and molecular data contribute to tree construction.
• Explore methods such as molecular clocks and statistical analyses used in phylogenetics.+ Show more

Learning Objectives

• Explain the purpose of ethical review for human and animal research and how it supports participant welfare.
• Describe key elements of research integrity, including data management, transparent reporting, and reproducibility.
• Identify ethical responsibilities related to conflicts of interest and authorship conventions.+ Show more

Learning Objectives

• Explain how classical Mendelian inheritance leads to predictable genotype and phenotypic ratios
• Compare extended inheritance models (incomplete dominance, codominance, polygenic inheritance, sex-linked traits) and predict likely offspring patterns
• Apply pedigree reasoning and linkage/recombination concepts to interpret trait transmission

Learning Objectives

• Explain how plate interactions at divergent, convergent, and transform boundaries produce earthquakes, volcanism, and major landforms.
• Analyze evidence from radiometric dating, stratigraphic correlation, and seismic tomography to reconstruct Earth’s geologic history.
• Describe how mantle convection and isostasy influence lithospheric motion and surface geology over geologic time.

Learning Objectives

• Differentiate scientific theories from scientific laws based on their roles and what they explain or describe.
• Explain how evidence supports both theories and laws and why both can change with new data.
• Apply the distinction between theories and laws to avoid common misconceptions in scientific reasoning.

Learning Objectives

• Explain how weathering and erosion work together to reshape Earth’s surface.
• Describe how sediment transport sorts material by size and density.
• Use landforms and sediment/rock records as evidence for past erosion and geologic change.+ Show more

Learning Objectives

• Describe contact and long-range force interactions and their laws.
• Use free-body diagrams and net force calculations to analyze motion.
• Apply Newton’s laws to systems involving inclined planes, pulleys, and friction.+ Show more

Learning Objectives

• Identify key factors that influence climate variability and change.
• Explain the concepts of radiative forcing and feedback loops in climate science.
• Analyze the roles of greenhouse gases, volcanic aerosols, solar irradiance, and land-surface changes.+ Show more

Learning Objectives

• Explain how technology choices affect system efficiency, safety, sustainability, and reliability
• Analyze trade-offs between competing technology goals in real-world systems
• Use clear evidence to justify a technology decision based on lifetime and operating conditions

Learning Objectives

• Identify key material properties used in materials selection for engineered energy systems (strength, toughness, corrosion resistance, thermal conductivity, durability).
• Evaluate how operating conditions and failure mechanisms (fatigue, moisture/chemical degradation) influence material choice.
• Compare materials such as aluminum, steel, and polymer composites using trade-offs between performance, mass, and maintenance.

Learning Objectives

• Describe the main types of biogeochemical cycles and their significance.
• Explain how elements like carbon, nitrogen, and phosphorus move through ecosystems.
• Identify human impacts on biogeochemical cycles and their long-term effects.+ Show more

Learning Objectives

• Understand how human resource use affects Earth systems and landscapes.
• Identify environmental consequences of resource extraction and land modification.
• Evaluate trade-offs between economic benefits and environmental sustainability.+ Show more

Learning Objectives

• Understand the spatial distribution, focal depths, and mechanisms of seismic activity.
• Identify active tectonic structures and stress regimes through seismic patterns.
• Analyze seismic data to interpret crustal and mantle deformation processes.+ Show more

Learning Objectives

• Explain how constraints affect engineering or scientific design and why models are used to predict outcomes.
• Interpret common modeling approaches (systems diagrams, scaling relationships, and simplified physics-based models) in constrained scenarios.
• Evaluate how measurement uncertainty and assumptions influence decision-making and acceptable design changes.

Learning Objectives

• Understand how sedimentary deposits record environmental interactions and changes over time.
• Identify different types of sediments and what they reveal about past climates and environments.
• Learn how proxies like isotopic ratios and mineral assemblages help reconstruct Earth's history.+ Show more

Learning Objectives

• Explain how different climate models represent energy balance, atmospheric processes, and ocean–atmosphere interactions.
• Use radiative transfer, cloud feedback, and parameterization concepts to interpret how models project climate change.
• Evaluate model reliability by describing validation with paleoclimate proxies, instrumental records, and sensitivity experiments.

Learning Objectives

• Understand resource assessment, conversion technologies, and lifecycle considerations for renewable energy systems.
• Analyze geographic variability, intermittency mitigation, and environmental metrics related to wind, solar, and bioenergy.
• Evaluate the economic and environmental impacts of different renewable energy options.

Learning Objectives

• Explain how natural selection, genetic drift, and gene flow can change allele frequencies over time
• Distinguish the effects of drift versus gene flow on population genetic variation
• Use mechanisms to interpret patterns of relatedness and diversification among populations

Learning Objectives

• Explain the concept of uniform and non-uniform circular motion, including the roles of centripetal and tangential acceleration.
• Derive and apply the relationships between speed, radius, and acceleration in circular motion scenarios.
• Analyze real-world examples such as banked turns and orbital motion using free-body diagrams and vector decomposition.

Learning Objectives

• Understand key molecular techniques such as PCR, gel electrophoresis, and sequencing.
• Explain how recombinant DNA methods are used in biotechnology and medicine.
• Evaluate ethical and safety considerations in applying molecular techniques.

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

• Understand the various evidence types used in integrated geological reconstruction.
• Analyze how stratigraphy, radiometric dating, paleomagnetic data, and fossil records are combined to interpret Earth's history.
• Evaluate the importance of synthesizing multiple data sources to understand tectonic and geological processes.+ Show more

Learning Objectives

• Describe the large-scale atmospheric circulation patterns such as Hadley, Ferrel, and polar cells.
• Explain the influence of thermal gradients and Coriolis effects on pressure systems and storm tracks.
• Connect conceptual representations like circulation diagrams and pressure maps to observed weather and climate patterns.+ Show more