Grade 12 Science Worksheets

Learning Objectives

• Explain how DNA is transcribed into RNA and translated into proteins during gene expression.
• Describe how regulation at transcription and after transcription can change cell traits from the same genome.
• Evaluate how timing and cellular context influence phenotype through gene expression pathways.

Learning Objectives

• Explain reaction rates in terms of collision frequency and collision effectiveness.
• Predict how changes in concentration, temperature, and surface area affect reaction rates.
• Describe activation energy and use it to justify why some collisions produce products.+ Show more

Learning Objectives

• Describe how Lorentz forces generate torque in electric motors.
• Explain how magnetic field gradients enable imaging techniques such as MRI.
• Understand the principles behind magnetic storage, induction sensing, and the Hall effect.+ Show more

Learning Objectives

• Understand the fundamental principles of conservation of energy and momentum in isolated systems.
• Differentiate between elastic, inelastic, and perfectly inelastic collisions using conservation laws.
• Apply algebraic conservation equations to analyze collision and energy transfer problems.+ Show more

Learning Objectives

• Explain the principles of electron arrangements in atoms
• Identify orbital shapes and their energy levels
• Describe Hund’s rule and its application in electron filling+ Show more

Learning Objectives

• Understand the basic concepts of erosion and its causes
• Identify different processes involved in erosion such as water, ice, wind, and gravity
• Recognize how erosion shapes landscapes and influences Earth systems+ Show more

Learning Objectives

• Explain how transcription factors and regulatory DNA elements control when genes are transcribed
• Describe how chromatin state and epigenetic marks influence gene accessibility and expression
• Analyze post-transcriptional and translational mechanisms that affect protein production+ Show more

Learning Objectives

• Explain the relationships among electric charge, current, and potential difference using energy and conservation ideas
• Apply Ohm’s law to predict current and voltage in simple resistor circuits
• Determine equivalent resistance and current/voltage relationships for series and parallel resistor networks+ Show more

Learning Objectives

• Explain how scientific models represent patterns in natural phenomena and support predictions.
• Identify common types of models (diagrams, mathematical relationships, and simulations) and the variables they connect.
• Evaluate how assumptions and limitations affect a model’s accuracy and how evidence can lead to revision.

Learning Objectives

• Explain the impulse–momentum theorem using vector ideas of force, impulse, and momentum
• Interpret force–time information to determine impulse and relate it to changes in momentum
• Analyze why longer contact times reduce peak force while producing the same momentum change

Learning Objectives

• Understand how charge transfer occurs in ionic bonds
• Identify features of lattice structures in metals and salts
• Describe the shared-electron model for covalent bonds+ Show more

Learning Objectives

• Define momentum and explain its significance in physical systems.
• Describe how momentum is conserved during collisions.
• Distinguish between elastic and inelastic collisions based on kinetic energy.+ Show more

Learning Objectives

• Explain how matter cycles through ecosystems using biogeochemical pathways across atmospheric, aquatic, and soil reservoirs
• Describe carbon cycling through photosynthesis and respiration and how decomposers affect stored organic matter
• Trace nitrogen cycling through nitrogen-fixing, nitrification, assimilation, and denitrification+ Show more

Learning Objectives

• Synthesize biological, chemical, and physical evidence to form defensible scientific conclusions
• Apply multi-criteria decision frameworks to evaluate competing solutions under uncertainty
• Communicate assumptions, limitations, and confidence levels clearly in a technical argument+ Show more

Learning Objectives

• Explain how scientific models and theories are supported by evidence and revised when new data appear
• Apply concepts of causation, prediction, and experimental design to interpret scientific statements
• Analyze reading information to identify main ideas and evaluate claims using evidence

Learning Objectives

• Understand different types of natural resources and their importance to life on Earth.
• Learn how human activities impact Earth's systems, including water, land, and ecosystems.
• Explore strategies for resource conservation and sustainable management.+ 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

• Identify different types of plate boundaries
• Understand how tectonic forces shape Earth's surface
• Explain evidence supporting plate tectonics

Learning Objectives

• Distinguish endothermic processes from exothermic processes using energy flow between a system and its surroundings.
• Explain how bond breaking and bond forming relate to whether the temperature of reactants increases or decreases.
• Interpret energy (potential) profiles to determine relative energy of reactants and products and connect the result to energy conservation.

Learning Objectives

• Understand the concept of energy stored in electromagnetic fields.
• Define energy density for electrostatic and magnetic fields.
• Explain how capacitors and inductors store and release energy in electrical circuits.+ Show more

Learning Objectives

• Understand the key factors influencing population changes over time.
• Identify the patterns of exponential and logistic growth in populations.
• Describe interactions among populations such as predation, competition, mutualism, and parasitism.+ Show more

Learning Objectives

• Explain how thermohaline circulation and wind-driven circulation move heat and nutrients in the ocean.
• Describe how salinity, density stratification, and mixing processes influence biogeochemical cycling and carbon sequestration.
• Connect ocean circulation and tracer observations to regional climate modulation and episodic events such as ENSO.

Learning Objectives

• Identify signs of chemical reactions based on observable evidence
• Understand microscopic changes during reactions
• Connect everyday phenomena to chemical processes

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

• Connect DNA-level variation to gene expression and fitness consequences in evolving populations.
• Explain how mutation, natural selection, and gene flow interact to change allele frequencies over time.
• Evaluate how evolutionary dynamics can alter ecological interactions and ecosystem outcomes.

Learning Objectives

• Understand the interaction between technological development and environmental impact in Alberta's oil sands
• Analyze trade-offs among economic benefits, social values, and ecological concerns
• Examine historical policy decisions and their influence on current infrastructure projects+ Show more

Learning Objectives

• Explain how DNA structure supports accurate replication and inheritance of genetic information.
• Describe how transcriptional regulation and translation mechanics convert DNA sequence into functional proteins.
• Analyze how mutation types and DNA repair pathways create genotype-to-phenotype outcomes.+ Show more

Learning Objectives

• Understand how complex real-world problems are broken down into smaller design problems.
• Learn how relationships among subsystems are preserved during decomposition.
• Analyze the connection between top-level criteria and subsystem design choices.+ Show more

Learning Objectives

• Explain how a star’s mass influences internal pressure, fusion rate, and overall lifespan.
• Describe the main stages of stellar evolution from formation to main sequence and beyond.
• Compare the end-of-life paths of massive stars and lower-mass stars (supernova vs. compact remnants).+ Show more

Learning Objectives

• Distinguish evidence-based scientific claims from claims based on personal belief or opinion
• Explain how mechanisms and predictions connect to evidence in reliable scientific reasoning
• Evaluate whether scientific statements are testable, supported by data, and open to revision

Learning Objectives

• Explain the principles of the photoelectric effect and its significance in quantum physics.
• Analyze experimental data related to threshold frequency, stopping potential, and photon flux.
• Relate the photon energy, work function, and kinetic energy of emitted electrons through quantitative calculations.+ Show more

Learning Objectives

• Explain how meiosis separates chromosomes and how allele assortment in gametes leads to inheritance patterns in offspring.
• Use Punnett-square reasoning to predict genotype and phenotype outcomes from dominance and recessiveness.
• Interpret how recombination during sexual reproduction produces new allele combinations and genetic variation.

Learning Objectives

• Use free-body diagrams and Newton’s 2nd law to write force equations for multiple connected components
• Apply constraint relations to link component accelerations in multi-body systems
• Derive system accelerations and internal force distributions (e.g., tensions and contact normals) under idealized assumptions

Learning Objectives

• Understand the fundamental concepts of wave frequency, wavelength, and wave speed.
• Learn how these properties relate to each other mathematically.
• Explore the differences between types of electromagnetic waves based on their frequency and wavelength.+ Show more

Learning Objectives

• Understand the molecular mechanisms controlling gene expression, including promoter architecture and transcription factors.
• Identify the roles of epigenetic modifications, alternative splicing, and post-translational regulation in gene expression.
• Analyze regulatory network diagrams and interpret how expression levels are modulated over time and in different cellular contexts.+ Show more

Learning Objectives

• Explain how natural selection changes allele frequencies across generations in a population.
• Describe how heritable traits that increase fitness become more common in particular environments.
• Distinguish between directional adaptation and habitat-specific (variable) adaptation.

Learning Objectives

• Understand the components and functions of coupled climate–biogeochemical models
• Analyze how models are constructed and validated using parameter estimation and cross-validation
• Recognize the importance of quantifying uncertainty and communicating confidence bounds+ Show more

Learning Objectives

• Understand how effective nuclear charge, atomic radius, ionization energy, and electronegativity vary across the periodic table.
• Relate periodic trends to electronic structure and observable properties like metallic character and reactivity.
• Interpret tabular and graphical data to predict element behavior based on position in the periodic table.+ Show more

Learning Objectives

• Explain how engineered safety choices reduce harm by managing known failure modes and designing for extreme events
• Analyze how reliability and maintenance planning affect public trust and long-term infrastructure costs
• Evaluate how sustainability decisions connect to lifecycle resource use, emissions, and end-of-life handling+ 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

Learning Objectives

• Explain how efficiency is calculated from useful output energy (or work) and total input energy.
• Distinguish between transferred energy and energy losses (such as heat dissipation) in energy-flow models.
• Use efficiency and constraints to justify why real devices cannot convert all input energy into useful work.+ Show more

Learning Objectives

• Understand the fundamental ethical issues related to biotechnology.
• Identify social, legal, and ecological considerations in biotechnology applications.
• Recognize the regulatory frameworks governing biotechnology.+ Show more

Learning Objectives

• Explain how genetic markers and population-genetic theory are used to measure biodiversity and connectivity in fragmented wildlife populations.
• Interpret key metrics such as heterozygosity, inbreeding, effective population size, and gene flow to assess extinction risk.
• Evaluate how genetic structure and demographic viability influence conservation planning, including habitat corridors and recovery actions.

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

• Explain how to present a scientific hypothesis and interpret data clearly during an oral question-and-answer exchange.
• Apply slide and poster session communication norms, including concise abstracting and responsible timing.
• Use precise technical terminology appropriately for disciplinary audiences while maintaining clarity for community-facing listeners.

Learning Objectives

• Describe how central tendency summarizes patterns within scientific data
• Interpret spread as a measure of data variability
• Interpret uncertainty using confidence statements and error bars+ Show more

Learning Objectives

• Analyze the tradeoffs involved in policy decision-making across mitigation, adaptation, conservation, and socio-economic objectives.
• Apply decision analysis tools such as cost-benefit reasoning, multi-criteria decision analysis, and scenario modeling to policy evaluation.
• Interpret case studies of emissions regulation, land-use planning, and water allocation to understand real-world policy impacts.+ Show more

Learning Objectives

• Understand how trade-offs impact engineered systems and decision-making.
• Analyze data and models to compare alternatives based on cost, performance, and risk.
• Evaluate long-term effects of engineering choices, including maintenance and safety.+ Show more