Grade 12 Science Worksheets

Learning Objectives

• Describe the Earth's internal layers and their distinct properties.
• Interpret seismic data to understand layer boundaries and composition.
• Explain the evidence supporting Earth's layered structure from seismic waves.+ Show more

Learning Objectives

• Identify the different layers of Earth's internal structure and their characteristics.
• Interpret seismic data to understand boundary zones within Earth.
• Explain how geological evidence supports models of Earth's layered composition.+ Show more

Learning Objectives

• Explain how competition shapes ecological communities
• Describe energy flow through food webs
• Explain how trophic efficiency affects biomass distribution+ Show more

Learning Objectives

• Identify and use key wave-model parameters (wavelength, frequency, amplitude, period, and propagation speed) to explain wave behavior.
• Differentiate transverse and longitudinal waves and relate wave type to how energy transfers through a medium.
• Explain superposition and interference using wave models, including how patterns form from combining waves.+ Show more

Learning Objectives

• Explain one-directional energy flow through ecosystems using photosynthesis and respiration
• Describe how matter cycles through ecosystems via carbon, nitrogen, and phosphorus pathways
• Evaluate how decomposers and environmental change affect long-term nutrient availability

Learning Objectives

• Explain how heat transfer relates to enthalpy changes in chemical reactions
• Distinguish exothermic and endothermic reactions using temperature and enthalpy trends
• Use specific heat and calorimetry concepts to connect temperature change to energy transfer+ Show more

Learning Objectives

• Explain how collision theory and activation energy influence reaction rates.
• Determine reaction orders from rate laws and predict how concentration changes affect rate.
• Use the Arrhenius relationship to interpret how temperature changes rate constants.+ Show more

Learning Objectives

• Understand the concept of genetic mutations
• Identify different types of mutations such as substitutions, insertions, deletions, and chromosomal alterations
• Explain how mutations can influence gene function and phenotype+ Show more

Learning Objectives

• Explain how gravitational forces influence large-scale structures in the universe.
• Describe the evidence supporting the role of gravity in galaxy formation and evolution.
• Analyze the relationship between motion, interactions, and orbital patterns of celestial objects.+ Show more

Learning Objectives

• Use cost–benefit reasoning and multi-criteria decision analysis to compare climate and resource policies.
• Analyze tradeoffs among mitigation, adaptation, conservation, and socio-economic objectives using case-style scenarios.
• Evaluate policy outcomes with monitoring and evaluation, incentive structures, and governance constraints.

Learning Objectives

• Understand factors that influence population size and growth
• Identify patterns of exponential and logistic population growth
• Recognize interactions within and between populations+ Show more

Learning Objectives

• Differentiate the goals of science and technology when they use overlapping tools and evidence.
• Explain how scientific knowledge can be used as one constraint or input in engineering design.
• Analyze real-world examples (like electricity and medical imaging) to identify science vs technology contributions.

Learning Objectives

• Explain how mutations create genetic differences within populations
• Describe how meiosis and sexual reproduction reshuffle alleles to generate new allele combinations
• Evaluate how differential survival and reproduction change allele frequencies over time

Learning Objectives

• Characterize and distinguish systematic bias, random error, and conceptual model uncertainty in scientific measurements and interpretations.
• Explain how uncertainty propagates from sources like instrument drift and sampling variability to affect reported results.
• Use confidence intervals, error bars, and qualitative statements to communicate uncertainty in quantitative comparisons and model predictions.

Learning Objectives

• Understand the key components of designing and assessing senior-level scientific studies.
• Identify appropriate instrumentation and statistical methods for environmental monitoring.
• Evaluate criteria for methodological robustness, reproducibility, and ethical data handling in research.+ 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

• Understand key concepts of population dynamics, trophic relationships, and nutrient cycling in Alberta ecosystems.
• Analyze the impacts of habitat alteration, invasive species, and climate variability on community structure.
• Interpret quantitative descriptors such as carrying capacity, growth rates, and energy transfer efficiencies.

Learning Objectives

• Understand the concept of magnetic flux and how it influences electromagnetic induction.
• Describe the process by which changing magnetic flux induces an electromotive force.
• Explain Faraday’s law and Lenz’s law and their significance in electromagnetic phenomena.+ Show more

Learning Objectives

• Understand sources of genetic variation such as mutations, recombination, and chromosomal changes.
• Explain how gene mutations influence phenotype and inheritance patterns.
• Identify Mendelian and polygenic inheritance as models for trait transmission.+ Show more

Learning Objectives

• Understand the concept of atomic radius and how it varies across the periodic table.
• Identify patterns in atomic size across periods and down groups.
• Explain the reasons behind the trends in atomic radius.+ Show more

Learning Objectives

• Evaluate trade-offs in allocating renewable and nonrenewable resources using sustainability criteria
• Apply water budgeting and energy portfolio thinking to predict long-term resource reliability
• Use lifecycle assessment and carrying-capacity constraints to compare waste-handling strategies

Learning Objectives

• Understand the basic types of scientific instruments and their purposes
• Recognize how instrumentation advances scientific research
• Evaluate measurement precision and calibration in data collection+ Show more

Learning Objectives

• Understand the basic components of cell structure and their functions.
• Explore the cytoskeletal networks and their role in maintaining cell shape.
• Learn how membrane–extracellular matrix interactions influence cell resilience.+ Show more

Learning Objectives

• Explain how momentum conservation applies to systems with changing mass.
• Describe how mass ejection or accretion affects the momentum balance of a system.
• Derive the qualitative basis of the rocket equation by tracking momentum exchange.+ Show more

Learning Objectives

• Calculate wavelength, frequency, amplitude, and wave speed
• Interpret quantitative relationships among fundamental wave quantities
• Explain how boundary conditions affect observable wave behaviour+ Show more

Learning Objectives

• Determine whether a chemical equation is balanced by comparing atom counts on both sides.
• Interpret coefficients in balanced equations as relative particle amounts and connect them to moles.
• Use balanced equations for stoichiometric reasoning, focusing on conservation of atoms and consistent accounting.

Learning Objectives

• Explain how parallax provides a geometric distance scale for nearby stars and why it fails for distant objects.
• Use the ideas of standard candles, apparent brightness, and the inverse-square law to infer cosmic distances.
• Interpret redshift as an indicator linked to distance through the expansion of the universe.+ 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

• Explain the concept of uniform circular motion and the role of centripetal acceleration.
• Relate velocity, radius, and acceleration using mathematical formulas in circular motion.
• Analyze the effects of nonuniform circular motion involving tangential acceleration.+ Show more

Learning Objectives

• Understand the main ecosystem processes including productivity, decomposition, and nutrient cycling.
• Describe biogeochemical cycles of carbon, nitrogen, and phosphorus and their links to organisms and Earth's systems.
• Apply Alberta-specific examples of ecosystem processes to real-world environmental scenarios.+ Show more

Learning Objectives

• Explain the process of gene transcription and translation
• Identify the roles of promoters, enhancers, and transcription factors in gene regulation
• Describe how epigenetic modifications affect gene expression+ Show more

Learning Objectives

• Explain how axes, scales, and units affect graph interpretation
• Identify meaningful relationships and random scatter in plotted data
• Interpret slope, intercept, and curvature in a trend line+ Show more

Learning Objectives

• Understand the fundamental mechanisms that drive evolutionary change.
• Identify types of evidence supporting evolution.
• Explain how genetic variation leads to adaptation and diversity.+ Show more

Learning Objectives

• Understand the fundamental principles of electric circuits including Ohm's law, series and parallel networks.
• Apply circuit analysis rules such as Kirchhoff's laws to solve complex circuits.
• Analyze the energy transfer, impedance, and power considerations in resistive and real-world systems.+ Show more

Learning Objectives

• Explain the principle of electromagnetic induction as formulated by Faraday's law.
• Describe how changing magnetic flux induces electromotive forces in conductors.
• Understand the effects of relative motion between conductors and magnetic fields.+ Show more

Learning Objectives

• Explain how energy flow into or out of a system changes particle motion and intermolecular interactions to produce temperature changes.
• Differentiate exothermic and endothermic processes using conservation of energy and changes in particle-level potential energy.
• Interpret calorimetry and heat-transfer relationships to connect temperature change to energy transfer.

Learning Objectives

• Explain how energy flows through an ecosystem using trophic levels (producers, consumers, decomposers).
• Analyze why energy generally decreases at higher trophic levels and how that limits productivity.
• Describe how decomposers and matter cycling sustain ecosystem structure and biological productivity.

Learning Objectives

• Explain how energy is transformed during photosynthesis and cellular respiration, including light reactions, Calvin cycle, aerobic respiration, and anaerobic pathways.
• Describe how electron transport chains and chemiosmosis generate ATP in mitochondria or chloroplasts.
• Compare energy yield and constraints (e.g., oxygen availability and metabolic rate limits) across cellular pathways.+ Show more

Learning Objectives

• Describe the biochemical pathways involved in energy capture and conversion, including photosynthesis and cellular respiration.
• Explain the mechanisms of electron transport chains and chemiosmotic ATP synthesis.
• Compare energy yields of photosynthesis, glycolysis, Krebs cycle, and oxidative phosphorylation.+ Show more

Learning Objectives

• Explain how effective nuclear charge and electron shielding influence periodic trends such as atomic radius, ionization energy, and electron affinity.
• Use subshell filling and electron configurations to predict patterns and identify anomalies across periods and groups.
• Apply trend reasoning to classify elements and rationalize examples of reactivity series behavior.

Learning Objectives

• Select an appropriate data visualization (scatter plot, histogram, boxplot, time series) that matches the type of question and data.
• Construct clear graphs and charts using correct axis scaling, labeling, legends, and statistically meaningful annotations.
• Interpret uncertainty and model comparisons by reading error bars, confidence intervals, and log-scale transformations accurately.

Learning Objectives

• Explain how relative dating methods (rock layering, stratigraphic correlation, and index fossils) build a timeline of Earth history.
• Describe how radiometric/isotope dating provides absolute ages and how uncertainties are interpreted.
• Analyze how changes in Earth systems (atmosphere, oceans, and life) connect to events across geological time, including mass extinctions and glaciations.

Learning Objectives

• Explain reaction rates using collision theory and the activated complex model
• Predict how concentration, temperature, surface area, and catalysts affect reaction rate
• Determine or interpret reaction orders and rate laws from kinetic observations+ Show more

Learning Objectives

• Explain how trophic relationships transfer energy through trophic levels and limit food-chain length
• Describe how keystone species and trophic cascades can reshape community structure
• Connect biogeochemical cycles to nutrient availability and ecosystem productivity+ Show more

Learning Objectives

• Explain how natural selection, genetic drift, gene flow, and mutation generate biological diversity at the population level
• Interpret evidence for evolution from paleontology, comparative anatomy, and molecular homology
• Use population-level ideas (fitness, selection pressures, adaptive landscapes) to predict changes in allele frequencies

Learning Objectives

• Understand the concept of natural selection and how environmental pressures influence evolution.
• Identify different patterns of selection such as directional, stabilizing, and disruptive selection.
• Analyze real-world examples like antibiotic resistance to illustrate rapid natural selection.+ Show more

Learning Objectives

• Understand the purpose of models in scientific and engineering contexts.
• Identify different types of models used in science, such as diagrams, scaled models, and physics-based representations.
• Recognize how constraints like materials, power, and time influence modeling decisions.+ Show more

Learning Objectives

• Understand the basic concepts of gene expression
• Identify the processes of transcription and translation
• Recognize the factors regulating gene expression, including promoters, enhancers, and epigenetic modifications+ Show more