Science Worksheets

Learning Objectives

• Explain how scientific models represent systems that are too large, too small, or too complex to study directly.
• Describe how evidence from observations and measurements can be used to evaluate and improve a model.
• Identify what a model can represent and what it cannot represent.

Learning Objectives

• Explain how the Calvin cycle uses ATP and NADPH to fix carbon dioxide into organic molecules.
• Describe the main phases of the Calvin cycle: carbon fixation, reduction, and RuBP regeneration.
• Connect specific enzymes and intermediates (like RuBisCO and 3-carbon intermediates) to each phase.

Learning Objectives

• Explain how different types of pollutants (heavy metals, pesticides, and excess nutrients) enter ecosystems and affect organisms.
• Describe how bioaccumulation and biomagnification can increase pollutant levels in top predators.
• Connect nutrient over-enrichment to algal blooms and oxygen depletion that can create dead zones.+ Show more

Learning Objectives

• Explain how Coulombic attraction and repulsion between charged particles contribute to electrostatic bonding.
• Relate electron distribution to the physical properties of materials such as melting point, solubility, and conductivity.
• Use charge-based reasoning to predict stability and structure in ionic/charged systems.

Learning Objectives

• Classify bitumen separation steps as physical or chemical processes based on how substances change.
• Explain how density, particle size, temperature, and additives affect emulsions and dissolved organics.
• Use evidence from a process description to describe mixture behavior and expected product outcomes.

Learning Objectives

• Explain how a food web shows feeding relationships and alternative energy pathways.
• Describe how changes to one species can cause cascading effects through an ecosystem.
• Use food web ideas (connectivity, redundancy, and specialization) to predict stability after disturbances.

Learning Objectives

• Explain how specialized cell structures help cells perform specific functions in multicellular organisms.
• Compare how different specialized cells support transport, protection, absorption, and signaling.
• Use examples (nerve and muscle cells) to connect cellular structure to tissue-level performance.

Learning Objectives

• Explain how scientific models represent phenomena at different levels of detail
• Differentiate models, explanations, and theories using evidence-based reasoning
• Describe how theories can change when new evidence conflicts with earlier ideas+ Show more

Learning Objectives

• Distinguish primary succession from secondary succession using key characteristics such as soil presence and starting conditions.
• Explain how pioneer species change environmental conditions and how that affects later species.
• Describe how succession can increase biodiversity and lead to a relatively stable community (while still allowing different outcomes).

Learning Objectives

• Explain how crossing over during meiosis creates genetic variation in gametes
• Describe how independent assortment increases variation by changing chromosome combinations
• Connect meiotic variation to differences observed in offspring after fertilization

Learning Objectives

• Explain how net force determines the direction and magnitude of acceleration
• Use the relationship between net force, mass, and acceleration to predict motion
• Analyze real-world scenarios with multiple forces acting on an object+ Show more

Learning Objectives

• Explain how human activities change the movement of matter through Earth’s geosphere, hydrosphere, atmosphere, and biosphere.
• Analyze how land-use change, extraction, and waste management can alter carbon, nitrogen, phosphorus, and water cycles.
• Evaluate evidence-based impacts of altered cycles on erosion, nutrient loading, air quality, and greenhouse-gas concentrations.

Learning Objectives

• Analyze how external and internal forces interact in a multi-body mechanical system using Newton’s laws and net force ideas
• Predict motion changes by determining the direction and magnitude of net force for linked components
• Use energy accounting to track where energy transfers and where it is dissipated (e.g., heat/sound) during collisions or mechanical events+ Show more

Learning Objectives

• Explain how mitochondria convert chemical energy into ATP using oxidative phosphorylation and electron transport
• Describe how chloroplasts convert light energy into chemical energy through the light reactions and the Calvin cycle
• Compare the structure and function of mitochondria and chloroplasts and relate them to cellular energy demands+ Show more

Learning Objectives

• Explain how phylogenetic trees represent evolutionary hypotheses using shared derived characters and branching patterns.
• Interpret rooted versus unrooted phylogenetic trees and relate node placement to inferred divergence events.
• Evaluate tree support and distinguish homologous traits from convergent similarities when inferring relationships.

Learning Objectives

• Explain how incoming solar radiation is absorbed, reflected, and redistributed within Earth’s climate system.
• Analyze how latitude, seasons, and surface properties affect the energy balance at the surface and in the atmosphere.
• Use energy-balance ideas to interpret weather patterns and long-term climate tendencies.

Learning Objectives

• Explain what the Henderson–Hasselbalch equation represents in buffer chemistry
• Use the Henderson–Hasselbalch equation to calculate pH from buffer components
• Predict how changing acid/base ratio affects buffer pH+ Show more

Learning Objectives

• Explain the main parts of a cell (cell membrane, cytoplasm, and genetic material) and their basic roles.
• Describe how cells carry out basic metabolism using energy and materials.
• Connect microscopic cell structure to observable traits in organisms.

Learning Objectives

• Explain the law of conservation of mass in terms of a closed system during chemical reactions.
• Connect balanced chemical equations to mass changes and measurable quantities of reactants and products.
• Use experimental reasoning to predict and interpret mass conservation results.

Learning Objectives

• Explain how plate tectonics accounts for continental drift, mountain building, volcanism, and sea-floor spreading
• Distinguish convergent, divergent, and transform plate boundaries and relate each to common landforms and hazards
• Connect heat transfer and mantle convection to subduction and long-term crustal recycling

Learning Objectives

• Explain how energy transformations change energy forms while conserving total energy in a closed system
• Describe how motion-related energy can become thermal energy due to friction and air resistance
• Connect real-world examples (candles, motors, heaters) to energy accounting and energy usefulness for work+ Show more

Learning Objectives

• Identify ecosystem components (producers, consumers, decomposers) and describe their trophic roles
• Explain abiotic factors and how climate shapes biome structure and community composition
• Model energy flow and matter cycling using examples such as food webs and energy pyramids+ Show more

Learning Objectives

• Explain that energy can change forms through energy transformations while total energy is conserved.
• Identify common energy forms (mechanical, chemical, electrical, thermal) and trace how they transform in real systems.
• Use energy transformation ideas to interpret examples such as hydroelectric power, wind turbines, and fuel combustion.

Learning Objectives

• Explain the stages of ecological succession and how they change over time after a disturbance.
• Analyze how abiotic factors (soil, climate, light, moisture) influence which species can establish.
• Evaluate how species interactions and productivity shift during succession.

Learning Objectives

• Compare genome organization and gene expression strategies in prokaryotes versus eukaryotes.
• Explain how operons, introns, and chromatin packaging affect transcription and regulation.
• Connect genetic system differences to gene regulation complexity and responses to environmental signals.

Learning Objectives

• Differentiate between heat and temperature using particle motion and energy transfer
• Explain how temperature and heat are affected by the amount of material (mass/size of container)
• Use warming/cooling patterns to describe the direction of energy flow

Learning Objectives

• Distinguish heterogeneous and homogeneous mixtures using observable properties
• Explain how solutions form, including the roles of solute, solvent, and solubility
• Describe saturation and predict what happens when more solute is added to a solution+ Show more

Learning Objectives

• Model how seafloor spreading and subduction zones drive changes in Earth’s surface and seafloor features.
• Explain how volcanic arc systems and mountain belt uplift result from crustal deformation and faulting.
• Use evidence such as seafloor magnetic anomaly patterns and geologic cross-sections to support plate tectonics.

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

Learning Objectives

• Explain radioactive decay, half-life, and activity using quantitative relationships.
• Apply conservation of nucleon number and charge to balance nuclear equations.
• Analyze nuclear reaction energetics using mass-energy concepts and interpret decay chains.

Learning Objectives

• Explain how insulin and glucagon regulate blood glucose using negative feedback during fasting and after eating.
• Compare insulin and glucagon effects on the liver, muscle, and adipose tissue to maintain energy homeostasis.
• Use cause-and-effect reasoning to describe what happens to blood glucose when one hormone is increased or decreased.

Learning Objectives

• Explain how multiple organ systems coordinate to maintain homeostasis during dynamic challenges such as exercise, dehydration, and infection.
• Describe feedback mechanisms (positive and negative feedback) that regulate key variables like blood pressure, blood pH, and fluid balance.
• Analyze emergent outcomes that arise from system-level interactions rather than single-organ responses.

Learning Objectives

• Explain what makes a pure substance different from a mixture in terms of uniform composition and characteristic properties.
• Differentiate elements and compounds and identify examples using chemical and physical evidence.
• Use fixed melting/boiling points and other properties to distinguish pure substances from substances with impurities.

Learning Objectives

• Explain Newton’s Third Law using the idea of action–reaction pairs that act on different objects
• Identify forces in a scenario and determine the direction and relative size of the matching third-law force
• Predict how force pairs affect the motion of each object involved+ Show more

Learning Objectives

• Explain how particle motion relates to temperature, pressure, and gas expansion or compression in a confined system.
• Describe diffusion using particle ideas and compare diffusion rates under different conditions.
• Use evidence-based reasoning to predict how changes in temperature and confinement affect pressure and gas behavior.

Learning Objectives

• Explain how predator and prey populations affect one another through direct mortality and behavior changes.
• Describe how refuges and functional responses shape predator–prey interactions.
• Analyze cascading trophic effects when top predators are absent or return to an ecosystem.

Learning Objectives

• Compare solids, liquids, and gases using particle arrangement and relative motion.
• Describe macroscopic traits such as shape retention and compressibility for each state of matter.
• Use everyday examples (ice, liquid water, water vapor) to connect state changes with density and molecular spacing.+ Show more

Learning Objectives

• Identify producers, consumers, and decomposers and describe what each role does in a food chain
• Determine trophic levels (primary, secondary, tertiary) and explain how energy transfers between levels
• Compare linear food chains with networked food webs and explain why energy loss affects population size and stability

Learning Objectives

• Explain how river flow patterns and timing influence habitat suitability and primary productivity in floodplain and riparian ecosystems.
• Describe how wetlands regulate nutrient cycling and ecosystem services through water storage, filtering, and habitat complexity.
• Interpret how groundwater availability and seasonal water use affect plant communities and species distributions.

Learning Objectives

• Explain how freshwater reservoirs and watersheds influence water availability using key hydrologic ideas.
• Describe how groundwater moves through aquifers and how porosity and permeability affect flow and recharge.
• Connect soil formation and mineral deposits to Earth processes and depositional or igneous settings.+ Show more

Learning Objectives

• Explain how the rock cycle preserves evidence of Earth’s past surface changes in rocks and fossils.
• Use sedimentary stratigraphy, index fossils, and radiometric decay to determine relative and absolute ages.
• Interpret depositional environments, climates, and tectonic settings from rock and fossil assemblages.

Learning Objectives

• Use Ohm’s law to calculate voltage, current, and resistance in simple circuits.
• Find equivalent resistance for series and parallel resistor combinations and predict current/voltage effects.
• Apply temperature dependence of resistance to explain how Alberta winter conditions affect conductor behavior.+ Show more

Learning Objectives

• Explain how energy enters ecosystems through sunlight and moves through trophic levels.
• Describe how energy transfer losses limit biomass and population sizes at higher trophic levels.
• Use food chains and food webs to interpret energy flow and ecosystem constraints.

Learning Objectives

• Interpret microscopy images using scale bars, resolution limits, staining/contrast, and controls
• Differentiate what electron microscopy and fluorescence microscopy can reveal about cells and organelles
• Evaluate claims about cellular processes by comparing image sets over time while accounting for artifacts

Learning Objectives

• Explain how environmental chemical changes can be analyzed using mass conservation and measurable mass flows
• Connect acid deposition chemistry to observable effects on limestone using particulate and atomic explanations
• Describe how tailings chemistry and nutrient cycling involve system boundaries and chemical transformations

Learning Objectives

• Identify major eukaryotic cell organelles (nucleus, mitochondria, chloroplasts, and cell membrane) and describe their primary functions.
• Explain how organelle specialization supports cell survival and contributes to tissue and organ performance in multicellular organisms.
• Connect cellular energy capture in producers (photosynthesis) versus consumers (cellular respiration) to larger-scale ecological interactions.

Learning Objectives

• Describe the layers of Earth (crust, mantle, outer core, inner core) and explain how their properties differ.
• Use seismic waves and mantle convection as evidence for Earth’s internal structure and plate motion.
• Explain how density, buoyancy, and heat transport relate to lithospheric behavior and geothermal gradients.+ Show more

Learning Objectives

• Explain how photons drive charge separation in photosystems during the light reactions.
• Describe how an electron transport chain creates a proton gradient that powers ATP synthase.
• Connect water splitting to electron replenishment and oxygen release.