Grade 9 Worksheets

Learning Objectives

• Explain how a limiting reactant determines the maximum amount of product in a chemical reaction.
• Calculate theoretical yield using balanced mole ratios and molar masses.
• Compare theoretical and actual yield using percent yield, and interpret efficiency.+ Show more

Learning Objectives

• Explain gas pressure, volume, and temperature qualitatively using the particle model
• Describe how microscopic particle motion leads to observable changes in pressure and flow
• Use everyday examples (heated air, confined gas, weather balloons, respiration) to connect macroscopic observations to particle collisions and kinetic energy

Learning Objectives

• Explain how plate convergence and continental collision can fold, fault, and uplift Earth’s crust to form mountain ranges.
• Identify key processes involved in orogeny, including thrust faulting, crustal shortening, magmatic intrusion, and isostatic rebound.
• Use evidence from rock types, structures, and timing to interpret tectonic history and past plate motions.+ Show more

Learning Objectives

• Differentiate heterogeneous mixtures from homogeneous solutions based on uniformity
• Identify and describe the roles of solute, solvent, and concentration in solutions
• Explain how physical properties guide separation methods without chemical change+ Show more

Learning Objectives

• Interpret displacement–time, velocity–time, and acceleration–time graphs using slope and area
• Analyze motion scenarios to determine how changing acceleration appears on curved graph segments
• Use appropriate axis labels and graphing conventions to compare different motion profiles

Learning Objectives

• Explain how energy profiles represent activation energy, transition states, and energy changes during chemical reactions.
• Distinguish exothermic and endothermic reactions using the sign of ΔH.
• Interpret reaction-coordinate diagrams to describe energy flow between a system and its surroundings.

Learning Objectives

• Use constant-acceleration equations to relate displacement, time, initial velocity, final velocity, and acceleration.
• Apply an appropriate sign convention to motion problems (e.g., slowing down, falling objects).
• Substitute given values with correct units to predict displacement and velocity outcomes.

Learning Objectives

• Use symptom descriptions, circuit topology, and measurement data to infer likely electrical fault types.
• Differentiate between open circuits, short circuits, and component degradation using observable instrument readings.
• Justify diagnostic conclusions using evidence-based reasoning and protection behavior.

Learning Objectives

• Describe how the particle model explains solids, liquids, and gases using particle spacing and motion
• Use the particle model to explain diffusion, pressure, and changes in temperature
• Relate kinetic energy and particle collisions to observable macroscopic effects

Learning Objectives

• Explain how grounding and overcurrent protection reduce electrical shock and fire risk.
• Interpret common electrical safety labels to identify protective features and installation requirements.
• Describe how insulation, approved equipment, and environmental conditions affect electrical safety in Alberta.

Learning Objectives

• Explain how genes (DNA segments) determine protein structure and function
• Describe transcription and translation as processes that link DNA to protein production
• Interpret how promoter and regulatory elements control gene expression and phenotype+ Show more

Learning Objectives

• Explain how oceanic lithosphere subducts and how this creates trenches and volcanic arcs
• Describe the role of slab dehydration and melting in arc volcanism
• Interpret how subduction-zone processes can generate earthquakes, tsunamis, and major landforms

Learning Objectives

• Explain how work relates to force and distance in the direction of motion
• Compare simple machines using the ideas of input force, output force, and mechanical advantage
• Evaluate energy trade-offs, including efficiency and the effects of friction

Learning Objectives

• Classify chemical reactions as synthesis, decomposition, single displacement, double displacement, or combustion based on reactant/product patterns.
• Predict likely products by applying reaction-category rules and using the idea that charges and atoms must be conserved.
• Explain how oxidation is involved in combustion and relate reaction categories to electron movement (redox considerations).

Learning Objectives

• Explain that power is the rate of energy transfer and identify common power units.
• Define efficiency as the fraction of input energy converted to useful work.
• Analyze how input power, output power, and energy losses affect performance in real systems.

Learning Objectives

• Explain natural selection, including heritable traits, selective pressure, and fitness
• Use Alberta examples to describe how adaptations can improve survival or reproduction
• Compare natural selection with artificial selection and describe how each changes populations over generations+ Show more

Learning Objectives

• Explain how net force is determined by vector addition of all forces acting on an object, including direction.
• Predict motion changes (acceleration, deceleration, and equilibrium) from the net force and force direction.
• Apply friction and air resistance as opposing forces to analyze realistic Alberta scenarios.

Learning Objectives

• Distinguish ionic, covalent, and metallic bonding using electron interactions
• Predict properties of substances (e.g., melting point, conductivity, structure) based on bonding type
• Explain how bonding influences real-world materials and applications, including those relevant to Alberta

Learning Objectives

• Explain how wind and solar variability affects grid operation and dispatch decisions
• Describe roles of forecasting, storage, and reserves in balancing supply and demand
• Evaluate how renewable integration impacts planning, reliability, economics, and environmental outcomes

Learning Objectives

• Understand the primary kinematic equations for constant acceleration motion.
• Apply equations to analyze vertical free-fall and projectile motion scenarios.
• Recognize sign conventions and component-wise treatment of motion under gravity.+ Show more

Learning Objectives

• Understand how uncertainty is represented in data displays like graphs and tables.
• Interpret error bars, uncertainty bands, and annotated ranges to assess data credibility.
• Evaluate whether observed differences are meaningful considering overlapping uncertainties.+ Show more

Learning Objectives

• Define physical properties and understand their significance in science.
• Identify examples of physical properties such as density, melting point, and conductivity.
• Differentiate between intensive and extensive properties.+ Show more

Learning Objectives

• Understand the concept of measurement uncertainty and its sources.
• Identify different sources of error in scientific measurements.
• Evaluate how uncertainty affects the confidence in experimental results.+ Show more

Learning Objectives

• Understand the principle of conservation of matter during chemical reactions.
• Explain how atoms rearrange without being created or destroyed.
• Interpret chemical equations in terms of atom counts for each element.+ Show more

Learning Objectives

• Understand how vectors represent forces including magnitude and direction.
• Learn how to resolve forces into components both graphically and analytically.
• Calculate the resultant force using vector addition methods.+ Show more

Learning Objectives

• Understand the mechanisms of hormonal regulation and feedback in the human endocrine system.
• Analyze how hormones like insulin, glucagon, and thyroid hormones maintain homeostasis.
• Describe hormone synthesis, transport, receptor actions, and cellular effects including gene expression and enzyme activity.+ Show more

Learning Objectives

• Understand how simple machines combine within compound machines to multiply force and displacement.
• Calculate overall mechanical advantage by analyzing force ratios and displacement relationships in systems.
• Distinguish between ideal and actual mechanical advantage, especially considering energy losses such as friction.+ Show more

Learning Objectives

• Understand the concept of work as the dot product of force and displacement, including the angle between them.
• Differentiate between work with constant and variable forces.
• Apply area-under-curve methods to estimate work in variable-force scenarios.+ Show more

Learning Objectives

• Understand how individual forces combine to produce net force.
• Identify the effects of opposing forces on motion and acceleration.
• Analyze scenarios involving unbalanced forces and determine the resulting motion.+ Show more

Learning Objectives

• Understand the principle of conservation of matter in chemical reactions.
• Learn how to balance simple chemical equations by matching atom counts.
• Explain the significance of coefficients in representing particle ratios.+ Show more

Learning Objectives

• Understand how models are used to represent and explain scientific phenomena.
• Analyze quantitative data to evaluate scientific explanations.
• Interpret patterns and relationships in measurements related to motion, energy, forces, and waves.+ Show more

Learning Objectives

• Understand the concepts of heat transfer and work as energy pathways.
• Differentiate between heat transfer and work in physical and chemical changes.
• Explain how energy flows between a system and its surroundings through heat and work.

Learning Objectives

• Understand how inheritance patterns influence trait prediction across multiple generations.
• Learn to analyze parental allele combinations and predict offspring phenotypes.
• Recognize how dominant and recessive traits affect observable characteristics.+ Show more

Learning Objectives

• Describe the roles of key organelle systems in cell function.
• Explain how organelle networks coordinate cellular processes such as metabolism and maintenance.
• Identify interactions between organelles like chloroplasts, mitochondria, ER, and peroxisomes.+ Show more

Learning Objectives

• Explain the concept of action–reaction force pairs and how they exhibit equal magnitude and opposite direction.
• Identify examples of Newton’s third law in real-world phenomena such as propulsion, collisions, and mutual forces.
• Analyze force interactions within a system by distinguishing between internal and external forces.+ Show more

Learning Objectives

• Explain the distinctions between contact and non-contact forces.
• Identify and describe examples of fundamental forces such as gravity, friction, tension, normal force, and electromagnetic interactions.
• Describe the magnitude, direction, and point of application of different forces in various contexts.+ Show more

Learning Objectives

• Describe the nature of resistive forces such as static and kinetic friction and fluid drag.
• Explain how surface properties and relative motion influence frictional and drag forces.
• Apply quantitative relations involving coefficients of friction and drag dependencies on velocity, area, and medium density.+ Show more

Learning Objectives

• Explain the concept of inertia as described by Newton's first law.
• Differentiate between static and dynamic equilibrium.
• Describe how balanced forces affect the motion of objects on low-friction surfaces.+ Show more

Learning Objectives

• Describe the physical barriers that protect the body against pathogens.
• Explain the roles of cellular mediators like macrophages and lymphocytes in immune response.
• Identify the mechanisms of inflammation and immune memory formation.+ Show more

Learning Objectives

• Analyze how lifestyle choices such as nutrition, physical activity, and sleep influence human health.
• Evaluate the roles of environmental exposures like tobacco and pollutants in disease development.
• Interpret epidemiological data and understand physiological mechanisms underlying chronic conditions.+ Show more

Learning Objectives

• Understand how the particle model explains gas properties such as pressure, volume, and temperature.
• Describe how microscopic particle motions relate to macroscopic gas laws and observable phenomena.
• Analyze real-world examples of gas behavior, including pressure changes and gas expansion.

Learning Objectives

• Explain the concepts of diurnal and annual motion of celestial objects as observed from Earth.
• Describe how Earth's rotation and revolution cause the apparent movement of the sky.
• Use celestial coordinate concepts such as rising, setting, altitude, and azimuth to explain observational patterns.+ Show more

Learning Objectives

• Understand that elements are defined by their number of protons and their chemical symbols.
• Learn how atomic models represent atomic identity and the significance of atomic mass and symbols.
• Identify the properties of representative elements and distinguish between natural occurrence and extraction.+ Show more

Learning Objectives

• Interpret patterns of inheritance and allele transmission through analysis of genetic data.
• Understand and apply techniques such as genotype and phenotype frequency examination, PCR markers, SNPs, and sequencing reads.
• Compare observed versus expected genetic data distributions to infer linkage, heterozygosity, or selection.+ Show more

Learning Objectives

• Explain the differences between ionic lattices, covalent networks, and molecular solids based on their particle arrangements and electrical forces.
• Describe how properties such as melting point, electrical conductivity, hardness, and solubility reflect the lattice organization of different materials.
• Analyze observations to determine the type of lattice organization in various bulk materials.

Learning Objectives

• Understand the key processes involved in nutrient cycling, including nitrogen and phosphorus pathways.
• Describe how biological, physical, and human activities influence nutrient availability and flow.
• Analyze the effects of excess nutrients on aquatic ecosystems, such as eutrophication.+ Show more

Learning Objectives

• Understand the role of enzymes as biological catalysts in metabolic reactions.
• Describe how enzyme structure and active sites determine substrate specificity.
• Explain the concepts of activation energy and transition states in enzyme reactions.+ Show more

Learning Objectives

• Understand how the heart and lungs work together to regulate oxygen and carbon dioxide levels.
• Describe the processes of pulmonary ventilation and cardiovascular transport.
• Explain how the body adjusts heart rate, stroke volume, and vascular resistance in response to respiratory changes.+ Show more