Grade 12 Science Worksheets

Learning Objectives

• Explain how atmospheric composition, pressure gradients, and thermal structure drive large-scale circulation patterns
• Describe the roles of the Coriolis force, Hadley and Ferrel cells, and jet streams in shaping weather and climate
• Use concepts of atmospheric stability, lapse rates, and radiative heating to connect short-term weather variability to climate patterns+ Show more

Learning Objectives

• Describe the pathways and fluxes of carbon and nitrogen within environmental systems.
• Analyze the effects of human activities like fossil fuel combustion and fertilizer runoff on biogeochemical cycles.
• Apply reservoir exchange rates and steady-state concepts to model nutrient fluxes.+ Show more

Learning Objectives

• Understand how technology choices influence system behavior in efficiency, safety, sustainability, and reliability.
• Identify different impacts of technology decisions on system performance.
• Analyze cause-and-effect relationships related to technology impacts.+ Show more

Learning Objectives

• Describe the components of the atomic model, including protons, neutrons, and electrons.
• Explain electron configurations and their influence on element reactivity.
• Analyze orbital shapes, subshell filling order, and effective nuclear charge.+ Show more

Learning Objectives

• Explain major patterns and causes of biodiversity loss, including habitat fragmentation, invasive species, overexploitation, and climate change.
• Compare species richness, evenness, functional diversity, and genetic diversity as different measures of biodiversity.
• Evaluate conservation strategies such as protected areas, restoration ecology, and genetic management using real-world examples.+ Show more

Learning Objectives

• Analyze interactions between geologic resources, extraction processes, and societal demands.
• Describe ore deposit models, aquifer properties, and basin maturation.
• Evaluate trade-offs among resource availability, environmental impact, and technological adaptation.+ Show more

Learning Objectives

• Explain how heritable variation and fitness lead to changes in allele frequencies over generations
• Differentiate directional selection from selection that varies across habitats
• Analyze how ecological context influences the specific traits favored by natural selection

Learning Objectives

• Describe periodic wave motion using amplitude, wavelength, frequency, and phase relationships.
• Use the superposition principle to predict interference patterns for waves on strings and in air.
• Explain standing-wave formation with boundary conditions and relate mode structure to resonance frequencies.+ Show more

Learning Objectives

• Understand how heat transfers energy without changing matter
• Identify different energy transfer mechanisms in thermodynamics
• Link thermodynamic variables to observable effects such as expansion and phase change+ Show more

Learning Objectives

• Explain how energy conservation applies to thermal processes between a system and its surroundings.
• Use calorimetry reasoning to relate temperature change to heat transfer using mass and specific heat.
• Apply sign conventions for heat gained and heat lost in closed systems involving physical and chemical changes.

Learning Objectives

• Explain how atomic spectra arise from quantized electronic energy transitions
• Use spectral line patterns to infer element identity and related atomic structure information
• Describe how selection rules and line broadening affect observed emission/absorption spectra+ Show more

Learning Objectives

• Frame a senior design research question and define measurable variables for field or laboratory testing.
• Apply controlled comparisons by managing variables and choosing appropriate instrumentation for air or water monitoring.
• Use statistical reasoning to assess significance, quantify error/uncertainty, and document reproducible, ethical data handling.

Learning Objectives

• Understand the basic principles of planetary orbits and gravitational forces.
• Identify key characteristics of orbital paths and motions.
• Recognize how gravity influences the motion of planets and satellites.+ Show more

Learning Objectives

• Explain how multicellular organization works from cell to tissue to organ to organ system.
• Describe how specialized structures at each level support coordinated body functions.
• Evaluate how disruption at one level can affect system-level stability, growth, and health.

Learning Objectives

• Identify multiple types of evidence that indicate a chemical reaction has occurred.
• Explain reaction evidence using particle-level reasoning and conservation of atoms.
• Distinguish endothermic and exothermic processes based on temperature changes.+ Show more

Learning Objectives

• Explain how empirical evidence, institutions, and economic forces influence whether scientific innovations are adopted by society.
• Analyze historical examples (germ theory, vaccines, the Green Revolution, and digital technologies) for patterns of technological diffusion and public perception.
• Evaluate how unintended consequences and policy choices can change long-term outcomes of scientific advancements.

Learning Objectives

• Understand how apparent brightness relates to the distance of stars
• Identify different methods used to measure cosmic distances
• Explain the significance of redshift and standard candles in astronomy+ Show more

Learning Objectives

• Construct claims supported by specific scientific evidence
• Explain how variables and controls support causal interpretations
• Evaluate alternative explanations against predictions and evidence+ Show more

Learning Objectives

• Understand the fundamental principles of electric circuits, including Ohm's law, series and parallel configurations.
• Analyze circuit quantities such as voltage, current, resistance, and power using quantitative laws.
• Apply Kirchhoff's rules to analyze complex circuits and understand energy transfer in resistive elements.+ Show more

Learning Objectives

• Understand the key stages of meiosis
• Explain how crossing over and independent assortment increase genetic variation
• Recognize the importance of meiosis in maintaining chromosome number and promoting diversity

Learning Objectives

• Explain how natural selection changes allele frequencies
• Identify evidence that supports natural selection
• Connect heritable variation to reproductive success+ Show more

Learning Objectives

• Describe the structure and organization of lipid bilayers and membrane proteins.
• Explain the mechanisms of passive and active transport across membranes.
• Analyze how electrochemical potentials influence membrane transport and cellular signaling.+ Show more

Learning Objectives

• Understand how to formulate scientific claims grounded in evidence.
• Evaluate the strength and validity of scientific evidence.
• Apply logical frameworks to support scientific conclusions.+ Show more

Learning Objectives

• Understand the concept of Earth's energy balance and how it influences climate.
• Interpret and analyze different models of energy flow in the Earth system.
• Evaluate the limitations and uncertainties associated with Earth system models.+ Show more

Learning Objectives

• Explain how momentum conservation applies to systems with changing mass.
• Describe the relationship between mass flow rate, exhaust velocity, and vehicle acceleration.
• Analyze practical implications of variable mass in propulsion, staging, and energy costs.

Learning Objectives

• Explain how shared derived characters support hypotheses of evolutionary relationships in phylogenetic trees.
• Distinguish homologous similarities from analogous similarities caused by convergent evolution.
• Describe how molecular clock models and statistical methods can estimate divergence times and assess tree reliability.+ Show more

Learning Objectives

• Describe the biochemical pathways involved in energy capture and conversion in cells.
• Explain the processes of photosynthesis and cellular respiration, including light and dark reactions.
• Compare aerobic and anaerobic respiration pathways and their energy yields.+ Show more

Learning Objectives

• Understand the properties of electromagnetic waves
• Learn how electromagnetic signals transmit information
• Recognize the role of signal variations in encoding data+ Show more

Learning Objectives

• Understand the principles of relative dating such as superposition, original horizontality, lateral continuity, and cross-cutting relationships.
• Explain how unconformities and fossil assemblages aid in correlating geological strata.
• Construct relative geologic timelines to interpret Earth's history in the absence of absolute ages.+ Show more

Learning Objectives

• Explain how stratigraphy, fossil assemblages, and radiometric dating are used to organize Earth’s history into geological time intervals.
• Distinguish between relative dating and absolute dating methods in constructing timelines.
• Analyze how changes in the atmosphere, oceans, and biosphere can be interpreted through geological evidence across long time scales.

Learning Objectives

• Explain the key factors that influence population size, density, and age structure over time.
• Describe patterns of population growth such as exponential and logistic models.
• Identify interactions among populations like predation, competition, mutualism, and parasitism.+ Show more

Learning Objectives

• Understand the mole concept and its significance in chemical calculations.
• Learn to calculate molar mass and convert between mass and moles.
• Apply mass and mole relationships to balanced chemical equations.+ Show more

Learning Objectives

• Explain how the fossil record, comparative morphology, biogeography, and molecular phylogenetics provide evidence for evolution
• Use homology, transitional forms, and congruent phylogenetic trees to support conclusions about common ancestry and evolutionary history
• Evaluate how different types of data can reinforce natural selection and speciation in real-world examples

Learning Objectives

• Explain how heat transfer during chemical reactions is quantified using enthalpy (ΔH).
• Differentiate exothermic and endothermic reactions based on the sign and magnitude of ΔH.
• Use calorimetry and specific heat concepts to relate temperature change to energy change.+ Show more

Learning Objectives

• Describe key molecular techniques used in analyzing and manipulating genetic material.
• Explain the mechanistic basis of PCR, DNA sequencing, and genome editing systems like CRISPR.
• Identify applications of genomic technologies in diagnostics, trait modification, and ethical considerations.+ Show more

Learning Objectives

• Understand principles of proper attribution and authorship in scientific publications.
• Recognize the importance of data provenance and persistent identifiers like DOIs.
• Identify ways to avoid plagiarism and maintain integrity in reporting research data.+ Show more

Learning Objectives

• Understand the pathways of carbon exchange among atmosphere, biosphere, oceans, and lithosphere.
• Analyze the processes of photosynthesis, respiration, and decomposition within biogeochemical cycles.
• Evaluate how human activities alter flux rates and affect system balance, including fossil fuel combustion and nutrient runoff.+ Show more

Learning Objectives

• Identify the main pigments involved in photosynthesis and their organization within chloroplasts.
• Explain how pigments absorb light and transfer energy during photosynthesis.
• Understand the structure of photosynthetic membranes and the role of pigments within them.+ Show more

Learning Objectives

• Understand the key concepts of resource assessment and conversion technologies for renewable energy in Alberta.
• Analyze challenges and lifecycle considerations of wind, solar, and bioenergy systems.
• Evaluate environmental and economic metrics used to compare renewable energy options.

Learning Objectives

• Define net force and explain its role in changing an object's motion.
• Describe how acceleration relates to net force and mass.
• Identify how multiple forces combine through vector addition.+ Show more

Learning Objectives

• Explain how digitization encodes information into electromagnetic signals using controlled signal variations
• Describe how electromagnetic waves carry energy through space while the data can be recovered from measurable signal properties
• Use evidence-based reasoning to connect frequency content and signal propagation to communication performance

Learning Objectives

• Understand the principles of electron configuration and orbital filling order.
• Identify the orbitals filled in different elements based on quantum numbers.
• Apply Hund’s rule and recognize exceptions in transition elements.+ Show more

Learning Objectives

• Explain how energy flows through ecosystems and decreases at higher trophic levels.
• Describe the cycling of chemical elements among producers, consumers, and decomposers.
• Analyze the role of food webs in transferring energy and nutrients.+ Show more

Learning Objectives

• Explain how photon energy relates to frequency using E = hf
• Describe the photoelectric effect using work function and threshold frequency
• Compare classical wave predictions with experimental evidence for quantized energy exchange

Learning Objectives

• Define gravitational fields and describe their properties
• Explain how gravitational potential and potential energy are related in two-body systems
• Describe how field strength varies with distance from a mass source+ Show more

Learning Objectives

• Describe the main surface processes such as weathering, erosion, transport, and deposition that shape landscapes.
• Explain how climate, vegetation, and tectonic activity influence rates of surface change.
• Analyze process-response diagrams and sediment budgets to understand landscape evolution.+ Show more

Learning Objectives

• Explain how technology choices affect efficiency, safety, sustainability, and reliability in real systems.
• Identify key trade-offs among efficiency, safety, sustainability, and reliability when selecting technologies.
• Use cause-and-effect reasoning to predict how design changes can influence system performance over time.+ Show more

Learning Objectives

• Compare mitosis and meiosis in terms of chromosome behavior, division steps, and resulting ploidy.
• Explain how homologous recombination (crossing over) increases genetic variation.
• Analyze how nondisjunction and chromosome segregation errors lead to aneuploidy and altered phenotypes.+ Show more