Grade 12 Science Worksheets

Learning Objectives

• Explain how matter cycles among the atmosphere, hydrosphere, biosphere, and geosphere using examples from the water and carbon cycles
• Analyze how changes in one Earth-sphere matter process can influence other spheres and affect climate-relevant gas levels
• Evaluate evidence-based statements about evaporation, condensation, photosynthesis, respiration, and weathering in Earth systems

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

• Explain how different types of mutations (substitutions, insertions/deletions, and chromosomal changes) can alter genes and proteins
• Analyze how DNA-level changes can lead to phenotypic variation through effects on gene function and regulation
• Evaluate why mutation provides raw material for natural selection and evolution under environmental pressures

Learning Objectives

• Differentiate the purposes of science and technology in solving real-world problems.
• Explain how scientific knowledge and evidence-based models contribute to technological design.
• Analyze trade-offs and constraints involved in creating technological systems.+ Show more

Learning Objectives

• Explain how a star’s mass determines internal pressure, fusion rate, and overall lifespan.
• Describe the major stages of stellar evolution from formation to main sequence to later evolutionary paths.
• Connect observational patterns of luminosity and temperature to the Hertzsprung-Russell (H-R) diagram concept.+ Show more

Learning Objectives

• Understand the methods used for resource evaluation including geological, geophysical, and geochemical techniques.
• Identify environmental considerations such as waste, water, and greenhouse gas emissions in resource extraction.
• Evaluate the balance between resource development benefits and ecological impacts.+ 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 differential fitness can change allele frequencies across generations
• Identify evidence for natural selection using real-world examples (e.g., antibiotic resistance and finch beak variation)
• Evaluate how heritable variation and survival/reproduction differences connect to evolutionary change

Learning Objectives

• Explain the concept of entropy and how it relates to energy dispersal and microstates.
• Describe Gibbs free energy and its role in predicting the spontaneity of chemical reactions.
• Analyze how enthalpy and entropy contributions influence temperature-dependent spontaneity.+ Show more

Learning Objectives

• Understand the methods used to sequence Earth's history, including rock layers, fossils, and radiometric dating.
• Identify various markers of global environmental change, such as mass extinctions and glaciations.
• Explain the relationships between Earth's atmospheric, oceanic, and biospheric changes over geological time.+ Show more

Learning Objectives

• Understand the components and functions of gene regulatory networks in development and environmental responses.
• Identify how epigenetic modifications influence gene expression patterns.
• Analyze examples of regulatory networks in prairie grasses and cattle immune responses.+ Show more

Learning Objectives

• Explain how codominance and incomplete dominance change heterozygote phenotypes compared with complete dominance.
• Evaluate how multiple-gene traits produce complex phenotypic distributions rather than simple monohybrid ratios.
• Connect recombination during meiosis to changes in the frequencies of inherited allele combinations.

Learning Objectives

• Explain energy conservation using an energy-accounting approach for a closed system
• Identify how energy transforms between mechanical and thermal (internal) forms during real processes
• Use initial and final states to justify that energy is not destroyed, even when motion decreases

Learning Objectives

• Explain how matter cycles through ecosystems via biogeochemical pathways that connect atmospheric, aquatic, and soil reservoirs
• Describe key steps in the carbon cycle and the nitrogen cycle, including photosynthesis, respiration, nitrogen fixation, nitrification, assimilation, and denitrification
• Compare energy flow (one-directional) with matter cycling (reusable through transformations)+ Show more

Learning Objectives

• Construct evidence-based scientific explanations that connect observations and data to reasoning
• Use variables and controls to justify or limit causal interpretations
• Address alternative explanations by evaluating how well the evidence supports each claim+ 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

• Understand the principles of galvanic and electrolytic cells, including redox reactions and electrode processes.
• Calculate cell potential using standard reduction potentials and understand how to analyze galvanic and electrolytic systems.
• Explain the roles of salt bridges, electrode conventions, and potential differences in electrochemical reactions.+ Show more

Learning Objectives

• Understand different types of measurement errors and their sources.
• Apply principles of calibration and propagation of uncertainty in quantitative analysis.
• Interpret significance of error analysis in scientific measurements.+ Show more

Learning Objectives

• Understand the importance of proper attribution and data provenance in scientific research.
• Identify criteria for authorship and ways to avoid plagiarism through correct citation practices.
• Learn about data archiving, persistent identifiers like DOIs, and open data standards to ensure reproducibility.+ Show more

Learning Objectives

• Understand key principles of experimental design including control, replication, and randomization.
• Identify appropriate statistical methods for analyzing experimental data.
• Evaluate the importance of sample size, power, and effect size in research planning.+ Show more

Learning Objectives

• Understand how molecular processes influence cellular energetics and genetic regulation.
• Describe the use of mathematical models such as differential equations and network diagrams in biological systems.
• Explain how changes at one biological level propagate to others within ecosystems.+ Show more

Learning Objectives

• Explain how electromagnetic signals propagate as coupled oscillating electric and magnetic fields.
• Use relationships among frequency, wavelength, and wave speed to predict changes in EM transmission.
• Describe how reflection and refraction occur at boundaries and how material properties affect EM waves.+ Show more

Learning Objectives

• Explain the key ecosystem processes including primary productivity, decomposition, and nutrient cycling.
• Describe biogeochemical cycles of carbon, nitrogen, and phosphorus.
• Apply Alberta-specific ecosystem examples to real-world land-use and climate change scenarios.+ Show more

Learning Objectives

• Understand methods for integrating multiple lines of evidence in scientific research.
• Analyze contrasting datasets and assess their compatibility using model comparison metrics.
• Evaluate how combined evidence influences confidence in hypotheses and conclusions.+ Show more

Learning Objectives

• Differentiate scientific theories from scientific laws in terms of what they explain and how they are supported
• Identify whether a given statement best describes a theory, a law, or an evidence-based claim
• Explain how new evidence can strengthen, refine, or replace parts of scientific theories and how laws can be limited to specific conditions+ Show more

Learning Objectives

• Explain how heritable variation and differential reproductive success drive changes in allele frequencies over generations.
• Analyze how environmental pressures (climate, predators, pathogens, and competition) can shift trait distributions within populations.
• Differentiate natural selection from the idea that organisms adapt by changing their genes during their lifetimes.

Learning Objectives

• Understand the concepts of work, energy, and power in mechanical systems.
• Apply the work–energy theorem to analyze energy transfer in various contexts.
• Differentiate between conservative and nonconservative forces and their effects on energy.+ Show more

Learning Objectives

• Define energy efficiency and explain the concept of energy transfer and losses.
• Identify common energy losses in various devices and systems.
• Analyze how energy constraints impact device performance and efficiency.+ Show more

Learning Objectives

• Understand the key properties that influence material selection in engineering.
• Identify and explain the significance of properties such as strength, toughness, corrosion resistance, thermal conductivity, and environmental durability.
• Analyze how material properties affect performance under various operating conditions.+ Show more

Learning Objectives

• Understand how gene mutations originate and their role in evolutionary adaptation.
• Analyze the mechanisms of gene regulation and their influence on organismal traits.
• Explore evolutionary mechanisms such as mutation, selection, gene flow, and their ecological impacts.+ Show more

Learning Objectives

• Identify key promoter elements involved in gene regulation.
• Describe the role of transcription factors in gene expression.
• Explain how promoter architecture influences transcription initiation.+ Show more

Learning Objectives

• Understand key concepts related to Science
• Apply knowledge through practice questions
• Demonstrate comprehension of the material

Learning Objectives

• Understand the concept of molarity and its calculation from solution data
• Learn to convert concentration units including molarity, molality, and normality
• Apply dilution formulas to determine new concentrations after dilution+ Show more

Learning Objectives

• Understand the principles of enzyme kinetics and how they influence reaction rates
• Identify different mechanisms of enzyme regulation including allosteric modulation and feedback inhibition
• Analyze the role of hormones in metabolic pathway control+ Show more

Learning Objectives

• Understand the structure and function of mitochondria in energy conversion
• Describe the processes of ATP synthesis within mitochondria
• Identify how mitochondrial morphology influences metabolic efficiency+ Show more

Learning Objectives

• Define chemical equilibrium and describe its key features.
• Explain how forward and reverse reaction rates become equal at equilibrium.
• Identify factors that influence the position of equilibrium.+ Show more

Learning Objectives

• Understand the purpose and components of scientific models
• Identify how models are used for prediction in hydrological and climate studies
• Recognize the importance of calibration, validation, and sensitivity analysis+ Show more

Learning Objectives

• Understand the structure of DNA and its role in storing genetic information.
• Explain the process of transcription and translation in protein synthesis.
• Recognize how DNA sequences determine the amino acid sequence in proteins.+ Show more

Learning Objectives

• Identify different molecular shapes based on bonding and electron pair arrangements
• Understand how VSEPR theory predicts molecular geometries
• Relate hybridization states to molecular shapes+ Show more

Learning Objectives

• Understand the basic concepts and techniques of biotechnology.
• Identify various applications of biotechnology in medicine, agriculture, and industry.
• Recognize key ethical issues related to biotechnological advances.

Learning Objectives

• Understand key concepts related to Science
• Apply knowledge through practice questions
• Demonstrate comprehension of the material

Learning Objectives

• Understand the principles of wave interference phenomena
• Identify constructive and destructive interference patterns
• Explain the coherence requirements for interference+ Show more

Learning Objectives

• Understand the principles and applications of PCR in DNA amplification
• Identify the process and purpose of gel electrophoresis
• Comprehend high-throughput sequencing and its significance in genomics+ Show more

Learning Objectives

• Understand key concepts related to Science
• Apply knowledge through practice questions
• Demonstrate comprehension of the material

Learning Objectives

• Understand the different types of atomic packing in solids
• Identify unit cell geometries and their significance
• Explore bonding types that produce various crystal structures+ Show more

Learning Objectives

• Identify different types of electromagnetic waves based on their properties
• Understand the spectrum of electromagnetic radiation
• Relate wavelength, frequency, and energy for various electromagnetic waves+ Show more

Learning Objectives

• Define natural selection and explain its role in evolution.
• Identify different patterns of natural selection: directional, stabilizing, and disruptive.
• Recognize examples of natural selection in real-world scenarios.+ Show more

Learning Objectives

• Understand the process of the water cycle and its stages
• Identify how water moves through Earth's spheres
• Explain the importance of water movement for weather and climate+ Show more