Grade 12 Science Worksheets

Learning Objectives

• Describe how atomic radius, ionization energy, electron affinity, electronegativity, and metallic character change across a period and down a group
• Explain periodic trends using effective nuclear charge, shielding, and electron configuration
• Interpret trend graphs and connect periodic properties to typical ionic/covalent bonding tendencies and reactivity

Learning Objectives

• Understand the importance of biodiversity to ecosystems and human well-being.
• Identify different types of biodiversity: species, genetic, and functional diversity.
• Recognize major threats to biodiversity including habitat fragmentation, invasive species, overexploitation, and climate change.+ Show more

Learning Objectives

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

Learning Objectives

• Explain how genetic information in DNA is converted into messenger RNA through transcription
• Describe how ribosomes use mRNA codons to assemble amino acids during translation
• Connect changes in DNA sequence to potential changes in protein structure and cell function+ Show more

Learning Objectives

• Understand the main patterns and causes of biodiversity loss.
• Identify conservation strategies and their applications.
• Analyze the role of genetic, species, and functional diversity in ecosystems.+ Show more

Learning Objectives

• Understand the structural complexity of biological macromolecules and how their shape influences function.
• Identify the types of chemical bonds and interactions that stabilize molecular structures in cells.
• Explain the roles of proteins, nucleic acids, carbohydrates, and lipids in cellular processes.+ Show more

Learning Objectives

• Explain how a star’s mass influences internal pressure, fusion rate, and overall lifespan.
• Describe the main evolutionary stages of stars after they form from collapsing clouds and reach the main sequence.
• Compare possible end states for massive versus lower-mass stars and how these outcomes enrich the universe with elements.+ Show more

Learning Objectives

• Understand the chemical structures and three-dimensional conformations of biological macromolecules.
• Explain how molecular form influences function, including protein folding, nucleic acid complementarity, and roles of carbohydrates and lipids.
• Analyze the physicochemical properties underlying molecular interactions such as catalysis, binding, and stability.+ Show more

Learning Objectives

• Explain the interactions between atmospheric and oceanic systems that influence weather and climate.
• Describe how ocean currents and upwelling affect regional temperature and moisture patterns.
• Analyze the feedback mechanisms between atmospheric conditions and ocean temperatures in climate regulation.+ Show more

Learning Objectives

• Understand the interactions between atmospheric and oceanic systems in climate regulation.
• Explain how ocean currents and upwelling influence regional weather patterns.
• Analyze feedback mechanisms between ocean temperatures and atmospheric conditions.+ Show more

Learning Objectives

• Understand the patterns and causes of biodiversity loss including habitat fragmentation, invasive species, overexploitation, and climate change.
• Learn about measures of species richness, evenness, and diversity that assist in conservation efforts.
• Explore conservation strategies such as protected areas, restoration ecology, and genetic management.+ Show more

Learning Objectives

• Understand the concept of atomic radius and how it varies across the periodic table.
• Analyze the effect of atomic structure, nuclear charge, and electron shielding on atomic size.
• Compare atomic radii of alkali metals, transition metals, and halogens.+ Show more

Learning Objectives

• Analyze and interpret systematic variations of atomic radius, ionization energy, electron affinity, electronegativity, and metallic character across periods and down groups.
• Explain the role of effective nuclear charge, shielding effect, and electron configurations in periodic trends.
• Compare trends among alkali metals, transition metals, and halogens with regard to reactivity and ionic/covalent properties.+ Show more

Learning Objectives

• Understand the periodic trends in atomic radius, ionization energy, electron affinity, electronegativity, and metallic character across periods and down groups.
• Explain how effective nuclear charge, shielding effect, and electron configuration influence periodic trends.
• Recognize patterns in element properties among alkali metals, transition metals, and halogens.+ Show more

Learning Objectives

• Understand key patterns and causes of biodiversity loss, including habitat fragmentation, invasive species, overexploitation, and climate change.
• Describe measures of species richness, evenness, functional and genetic diversity, and their importance in conservation.
• Explain conservation strategies such as protected areas, restoration ecology, and genetic management.+ Show more

Learning Objectives

• Understand key periodic trends such as atomic radius, ionization energy, and electronegativity.
• Analyze how atomic structure and effective nuclear charge influence periodic patterns.
• Interpret graphs illustrating periodic properties and relate them to element reactivity.+ Show more

Learning Objectives

• Explain how genetic information in DNA is used to produce messenger RNA (transcription).
• Describe how codons in mRNA guide translation into a polypeptide using ribosomes and tRNAs.
• Connect the sequence of nucleotides to amino acid sequence and ultimately to protein structure and function.+ Show more

Learning Objectives

• Understand the key patterns and causes of biodiversity loss such as habitat fragmentation, invasive species, overexploitation, and climate change.
• Describe various measures of biodiversity including species richness, evenness, functional and genetic diversity.
• Identify conservation strategies like protected areas, restoration ecology, and genetic management.+ Show more

Learning Objectives

• Explain how ocean currents and upwelling affect regional temperature and moisture.
• Describe how atmospheric circulation redistributes heat and interacts with ocean conditions.
• Use cause-and-effect reasoning to predict how coupled atmosphere-ocean changes can shift climate patterns.

Learning Objectives

• Identify the key components of Earth's atmospheric and oceanic systems
• Explain how atmospheric circulation and ocean currents influence climate
• Describe feedback mechanisms between atmosphere and oceans+ Show more

Learning Objectives

• Calculate and interpret work done by a force using the relationship between force, displacement, and direction.
• Explain how power describes the rate of energy transfer and compare situations using work and power.
• Apply work-energy and power concepts to real-world examples such as lifting loads and comparing machines.

Learning Objectives

• Understand the concept of intermolecular forces and their significance in chemistry.
• Identify the different types of intermolecular forces: dispersion, dipole–dipole, and hydrogen bonding.
• Relate the strength of intermolecular forces to physical properties such as boiling point, vapor pressure, viscosity, and solubility.+ Show more

Learning Objectives

• Explain energy conservation for a closed system using energy accounting rather than only motion descriptions
• Identify how nonconservative forces (like friction and air resistance) change forms of energy without destroying total energy
• Apply E_total,i = E_total,f to analyze initial and final states in real-world scenarios

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

• Understand the scientific mechanisms behind battery degradation chemistry
• Analyze how thermal limits affect battery performance over its lifecycle
• Evaluate the impact of recovery efficiency on sustainable engineering decisions+ Show more

Learning Objectives

• Explain how gravitational forces provide the centripetal acceleration required for orbital motion.
• Describe the main relationships summarized by Kepler’s laws and how they connect period and distance.
• Use evidence from multiple planetary systems to support the idea of common underlying physics.

Learning Objectives

• Interpret scatter plots, histograms, and residual plots using standard conventions (axes, scale, units, and trends).
• Evaluate how transformations (e.g., log scales) affect the shape of data and the form of a model.
• Assess the quality of fit qualitatively and quantitatively, including the meaning of residual patterns and uncertainty.+ Show more

Learning Objectives

• Understand the principle of conservation of energy in closed systems
• Identify various forms of energy transfer and transformation
• Analyze real-world situations involving energy conservation+ Show more

Learning Objectives

• Explain energy conservation in a closed system using energy accounting rather than only motion descriptions.
• Identify how energy transfers and transforms (e.g., to thermal energy) while remaining conserved overall.
• Use initial and final states to analyze real-world scenarios involving nonconservative forces.

Learning Objectives

• Understand the principle of energy conservation in closed systems.
• Identify different forms of energy transfer and transformation.
• Explain how energy is conserved even when losses like thermal energy occur.+ Show more

Learning Objectives

• Use Newton’s Second Law to relate net force, acceleration, and mass
• Determine the direction and magnitude of acceleration from multiple forces using vector sums
• Apply Newton’s Second Law to solve motion problems involving changing velocity

Learning Objectives

• Define conventions and interpretation strategies for various graphical data representations.
• Identify trends and patterns in scatter plots, residual plots, histograms, and log–log axes.
• Assess the quality of data fits qualitatively and quantify fit using various methods.+ Show more

Learning Objectives

• Understand the principles of pathway control including enzyme kinetics and allosteric modulation.
• Explain feedback inhibition and hormonal regulation mechanisms that maintain metabolic homeostasis.
• Use rate equations, metabolic flux diagrams, and steady-state approximations to analyze pathway responses.+ Show more

Learning Objectives

• Understand the principles of enzyme kinetics and how they influence metabolic pathways.
• Explain the mechanisms of allosteric modulation, feedback inhibition, and hormonal regulation in metabolism.
• Distinguish between regulation at transcriptional, translational, and post-translational levels.+ Show more

Learning Objectives

• Understand various types of graphical representations used in data analysis.
• Interpret trends, patterns, and anomalies in scatter plots, residual plots, and histograms.
• Identify appropriate scales and transformations, including log–log axes, to accurately interpret data.+ Show more

Learning Objectives

• Classify ionic, covalent, and metallic bonding using electrostatic interactions, polarity, and bond order ideas.
• Use Lewis structures and formal charge reasoning to predict molecular shapes and polarity with VSEPR.
• Relate bonding models to macroscopic properties such as melting point, conductivity, and solubility.

Learning Objectives

• Understand the layout of the periodic table and how elements are arranged
• Identify element positions based on atomic number and group/period classifications
• Explain how element properties change across periods and down groups+ Show more

Learning Objectives

• Explain how atomic structure (electron configuration) relates to periodic trends in electronegativity and ion formation.
• Predict how properties change across periods and down groups using electron arrangement patterns.
• Use periodic trends to justify typical reactivity and common ion charges for representative elements.

Learning Objectives

• Understand the processes behind geologic and atmospheric hazards such as earthquakes, tsunamis, and storms.
• Analyze how hazard probability, landscape vulnerability, and resilience strategies affect risk reduction.
• Evaluate approaches like land-use planning, early-warning systems, and engineered interventions in hazard scenarios.+ Show more

Learning Objectives

• Explain how electron structure (valence electrons and effective nuclear charge) drives periodic trends across periods and down groups.
• Predict how atomic radius, ionization energy, electronegativity, and reactivity change based on an element’s position in the periodic table.
• Connect predicted trends to typical ion formation and common behaviors in real-world materials.

Learning Objectives

• Explain how work depends on force magnitude and the angle between force and displacement
• Use the relationship between work and changes in mechanical energy to interpret real situations
• Calculate power from energy transfer rate and connect it to how quickly work is done+ Show more

Learning Objectives

• Identify the main drivers of sea level variability, including thermal expansion, land-ice mass loss, and glacio-isostatic adjustment.
• Understand how tide-gauge and satellite altimetry data are used to monitor sea level changes.
• Describe the methods used to attribute observed sea level patterns to specific causes.+ Show more

Learning Objectives

• Describe the differences between dispersion forces, dipole–dipole interactions, and hydrogen bonding.
• Explain how molecular size, shape, and polarity influence intermolecular forces.
• Relate intermolecular forces to macroscopic properties such as boiling point, vapor pressure, viscosity, and solubility.+ Show more

Learning Objectives

• Explain the differences between dispersion forces, dipole–dipole interactions, and hydrogen bonding.
• Relate the strength of intermolecular forces to properties like boiling point, vapor pressure, viscosity, and solubility.
• Analyze how molecular size, shape, and polarity influence intermolecular forces.+ Show more

Learning Objectives

• Define dispersion forces, dipole–dipole interactions, and hydrogen bonding.
• Explain how these forces influence molecular properties such as boiling point and vapor pressure.
• Identify factors like molecular size, shape, and polarity that affect intermolecular strength.+ Show more

Learning Objectives

• Describe the three main types of intermolecular forces: dispersion forces, dipole–dipole interactions, and hydrogen bonding.
• Explain how molecular size, shape, and polarity influence intermolecular strength and material properties.
• Relate intermolecular forces to macroscopic properties such as boiling point, vapor pressure, viscosity, and solubility.+ Show more

Learning Objectives

• Distinguish dispersion forces, dipole–dipole interactions, and hydrogen bonding as different intermolecular mechanisms.
• Explain how intermolecular strength influences macroscopic properties such as boiling point, vapor pressure, viscosity, and solubility.
• Predict relative intermolecular forces using molecular size, shape, and polarity.

Learning Objectives

• Describe the distinct mechanisms of dispersion forces, dipole–dipole interactions, and hydrogen bonding.
• Explain how intermolecular forces influence phase behavior and macroscopic properties such as boiling point, vapor pressure, viscosity, and solubility.
• Analyze how molecular size, shape, and polarity affect the strength of intermolecular forces and material properties.