Grade 9 Science Worksheets

Learning Objectives

• Explain how DNA sequence information flows to phenotype through replication, transcription, RNA processing, and translation.
• Predict how point mutations and regulatory changes can alter gene expression and protein function.
• Compare the likely effects of coding-region vs regulatory-region mutations in single-gene and polygenic contexts.

Learning Objectives

• Explain how metabolic pathways are coordinated using allosteric control and covalent modification.
• Describe feedback inhibition and hormonal signaling as mechanisms that shift flux between catabolism and anabolism.
• Use enzyme kinetics ideas (enzyme activity and substrate concentration) to predict how pathway rates change under new conditions.

Learning Objectives

• Explain how passive diffusion, facilitated transport, and active transport move substances across cell membranes.
• Use concentration gradients and membrane permeability to predict net movement direction and rate.
• Describe how membrane composition and transport proteins help maintain electrochemical gradients and osmotic balance.

Learning Objectives

• Explain how chromosomal behavior during meiosis connects to Mendelian inheritance patterns.
• Predict genotypic and phenotypic ratios using Punnett frameworks and probability.
• Interpret deviations from simple dominance, including incomplete dominance, codominance, and linkage.

Learning Objectives

• Interpret multiple lines of evidence for descent with modification, including fossils, comparative anatomy, biogeographic patterns, and molecular phylogenies.
• Explain how mutation, natural selection, genetic drift, and gene flow can change allele frequencies over short and long timescales.
• Use simple models or scenarios to predict how populations respond to changing environmental pressures.

Learning Objectives

• Explain how ATP production is linked to both catabolic and anabolic reactions through energy coupling
• Compare electron transport in photosynthesis and cellular respiration and describe its role in ATP formation
• Use simplified quantitative ideas (energy budgets and stoichiometry) to predict how pathway changes affect cell performance+ Show more

Learning Objectives

• Explain how trophic interactions and feedback loops influence ecosystem responses to disturbances.
• Use simple quantitative reasoning to describe population and nutrient dynamics in ecosystem models.
• Evaluate resilience, regime shifts, and thresholds when multiple stressors act together.+ Show more

Learning Objectives

• Explain how carbon and nitrogen cycle through organisms and abiotic components in an ecosystem.
• Describe how trophic transfer and stoichiometric constraints influence biomass distribution and population dynamics.
• Predict how perturbations like nutrient enrichment, habitat alteration, and invasive species can change ecosystem function.

Learning Objectives

• Explain how changes in developmental timing and gene regulation can create phenotypic diversity.
• Describe how regulatory networks and epigenetic modulation influence trait expression during development.
• Use developmental evidence to interpret developmental bias and convergent evolution in evolutionary outcomes.

Learning Objectives

• Explain how work depends on force and distance using the physics definition.
• Describe how simple machines change the magnitude or direction of an applied force.
• Evaluate input–output trade-offs and mechanical advantage in real contexts.

Learning Objectives

• Explain how simple machines transfer forces to change effort, direction, or displacement
• Compare ideal mechanical advantage with real-world outcomes caused by friction and support geometry
• Apply relationships among input force, load, and displacement to common machine examples

Learning Objectives

• Explain how relative motion depends on the choice of frame of reference
• Use vector ideas (speed and direction) to combine motion in different reference frames
• Distinguish between displacement and distance when comparing observed motion

Learning Objectives

• Explain how power relates to the rate of energy transfer in everyday and engineering systems
• Calculate and interpret efficiency as the fraction of input energy converted to useful output
• Identify major sources of energy loss and describe how they affect operational limits and design trade-offs

Learning Objectives

• Explain Newton’s three laws using force, motion, and mass (inertia).
• Use action–reaction pairs to predict how interacting objects move.
• Apply Newton’s laws to real situations such as snowplows, recoil, and anchoring.

Learning Objectives

• Explain how net force is found by adding forces as vectors (including direction).
• Use net force to predict changes in motion, including acceleration or equilibrium.
• Identify how opposing forces like friction and air resistance affect the resultant force.

Learning Objectives

• Use constant-acceleration equations to relate displacement, velocities, acceleration, and time.
• Apply a sign convention to choose correct positive/negative values in motion problems.
• Substitute values into kinematic equations to predict stopping distance or travel distance.+ Show more

Learning Objectives

• Explain how mechanical advantage relates input force, load force, input distance, and load distance
• Calculate mechanical advantage for simple lever, pulley, and wheel systems using ratios
• Compare trade-offs between force reduction and increased displacement in real devices+ Show more

Learning Objectives

• Differentiate speed, velocity, and acceleration using scalar vs. vector ideas and direction conventions.
• Use basic kinematics relationships and unit conversions to compare motion in real contexts.
• Interpret sign conventions for motion and determine whether acceleration is increasing or decreasing velocity.

Learning Objectives

• Explain how kinematics, net-force reasoning, and energy considerations work together to predict complex motion.
• Use force balance and energy ideas to determine acceleration and changes in speed during braking.
• Interpret how graphs and equations combine to estimate stopping distance under varying conditions.

Learning Objectives

• Interpret displacement–time and velocity–time graphs by connecting slope to physical meaning.
• Use the area under a velocity–time graph to determine displacement.
• Identify key features of motion graphs, including constant segments, sign changes, discontinuities, and curved (non-uniform) behavior.

Learning Objectives

• Explain how friction and aerodynamic drag oppose motion and convert mechanical energy into thermal energy.
• Identify the variables that affect friction on surfaces and drag in air for real-world objects.
• Use coefficients and basic models to estimate resistance forces qualitatively.

Learning Objectives

• Explain how mechanical energy changes between gravitational potential energy and kinetic energy.
• Use the idea of energy conservation with non-conservative losses (like friction) to predict motion limits.
• Describe energy transfers during work interactions and how dissipation affects achievable speeds and heights.

Learning Objectives

• Explain how electrical systems lose energy through resistive losses and other mechanisms.
• Describe how power factor and proper device selection affect system efficiency.
• Compare design choices that reduce wasted energy, cost, and environmental impact.

Learning Objectives

• Explain how grounding, overcurrent protection, and insulation work together to reduce electrical hazards.
• Interpret common device labels and identify what information matters for safe installation.
• Describe how environmental conditions (moisture, temperature, outdoor exposure) affect electrical safety requirements.

Learning Objectives

• Explain how wind and solar variability affects grid operation and dispatch planning.
• Describe how energy storage and grid balancing help maintain reliable electricity supply.
• Evaluate the environmental and economic trade-offs of integrating renewables in a regional grid.

Learning Objectives

• Explain how electricity moves from generation to consumers through transmission lines, substations, and distribution networks.
• Describe how voltage transformation supports efficient power transfer and safe delivery of electricity.
• Analyze how feeder topology and regional constraints affect reliability and capacity during normal operation and faults.

Learning Objectives

• Explain how an electric motor converts electrical energy into mechanical work using electromagnetic effects.
• Describe how a generator produces electrical energy through electromagnetic induction.
• Match motor and generator performance characteristics to real-world load needs in local systems.

Learning Objectives

• Explain how magnetic fields are produced by permanent magnets and moving electric charges.
• Use field-line ideas to predict how magnets and currents interact.
• Describe how the direction of current relates to the direction of the magnetic field for simple cases.

Learning Objectives

• Use symptom descriptions, circuit topology, and measurements to infer likely electrical fault types (open, short, degraded components).
• Explain how voltage and current readings relate to fault conditions and circuit paths.
• Select and justify the most probable failure mode based on diagnostic evidence.

Learning Objectives

• Explain how changing magnetic flux induces an electromotive force (voltage) in a conductor.
• Predict how changes in flux affect induced voltage direction and the idea of frequency in generation.
• Describe real-world applications such as generators, transformers, and step-up/step-down power systems.

Learning Objectives

• Define electric current, voltage, and resistance using correct units and symbols.
• Explain how voltage and resistance affect current using simple reasoning and the ideas behind Ohm’s law.
• Interpret common instrument readings and typical ratings for household and farm electrical equipment.

Learning Objectives

• Assess how device ratings and load demands affect safe and effective electrical system choices.
• Identify appropriate protective measures (fuses, circuit breakers, grounding, and GFCI) for common electrical applications.
• Evaluate energy efficiency and environmental impact when selecting an electrical application for a given setting.

Learning Objectives

• Describe how the Earth’s magnetic field is related to navigation tools like compasses and to dip and declination angles.
• Explain how regional magnetic variation affects map-and-compass use and surveying in Alberta.
• Connect auroral displays to magnetism and charged particles in Earth’s upper atmosphere.

Learning Objectives

• Describe how different electrical components behave under applied voltage and current, including linear and nonlinear effects.
• Explain how temperature changes affect component resistance and how this impacts real equipment performance.
• Connect component behaviors to power ratings and safe operating limits in circuits.

Learning Objectives

• Identify series and parallel components within a mixed (combined) circuit
• Calculate equivalent resistance and use it to find total current and voltage relationships
• Trace how current and voltage distribute across parallel branches in combined circuits+ Show more

Learning Objectives

• Differentiate series and parallel circuit arrangements by how current and voltage behave.
• Predict and explain brightness and reliability outcomes when components are arranged in series versus parallel.
• Apply circuit concepts to real-world examples such as string lights and household outlets.

Learning Objectives

• Interpret standardized symbols on circuit diagrams to identify components and their connection types.
• Use reference nodes and labeling to predict how current paths and voltage relationships form.
• Translate schematic information into practical understanding of residential and control-circuit layouts.

Learning Objectives

• Describe the physical properties of solids, liquids, and gases and connect them to particle behavior.
• Explain how temperature and pressure changes cause phase transitions between states of matter.
• Use examples from the environment to predict and justify material state changes.

Learning Objectives

• Interpret coefficient ratios in balanced chemical equations to relate relative amounts of reactants and products.
• Apply the law of conservation of mass to check and explain mass accounting in simple reaction contexts.
• Use balanced equations to estimate product mass from given reactant mass in real-world examples.

Learning Objectives

• Apply conservation of atoms to predict reaction products from balanced chemical reactions.
• Use reaction-type patterns (synthesis, decomposition, oxidation, neutralization) to make reasonable product predictions.
• Explain how reactant identities and typical bonding tendencies determine expected products.

Learning Objectives

• Explain how the particulate model describes solids, liquids, and gases using particle spacing and motion
• Use the particulate model to predict diffusion, changes in pressure, and temperature effects
• Connect particle collisions and kinetic energy to observable macroscopic properties

Learning Objectives

• Identify common observable properties of substances and describe what they reveal about matter.
• Classify samples using observable traits such as colour, hardness, conductivity, density, and solubility.
• Explain how observable properties can support practical decisions in everyday and industrial contexts.

Learning Objectives

• Differentiate ionic, covalent, and metallic bonding based on how electrons are involved
• Relate bonding type to physical properties such as melting point, conductivity, and structure
• Apply bonding concepts to real-world materials and environmental/industry examples

Learning Objectives

• Distinguish heterogeneous mixtures from homogeneous solutions based on uniformity
• Define solute, solvent, and concentration, and explain how concentration relates to solution properties
• Use physical properties to separate mixture components without chemical change

Learning Objectives

• Explain the law of conservation of mass in closed chemical reactions using the idea of conserved atoms
• Use mass-conservation reasoning to interpret evidence from sealed systems (e.g., combustion and captured gas)
• Apply conservation of mass to simple particle and measurement scenarios

Learning Objectives

• Identify observable evidence that indicates a chemical change has occurred.
• Explain how evidence such as gas, precipitate, colour shift, and temperature change supports the formation of new substances.
• Distinguish chemical change from physical change using criteria based on ordinary conditions.

Learning Objectives

• Explain how environmental chemical changes can be interpreted using observable evidence and particle/atomic ideas.
• Apply the idea of mass conservation and clear system boundaries to environmental chemical problems.
• Relate chemistry concepts to Alberta-relevant contexts such as acid deposition, tailings chemistry, and nutrient cycling.

Learning Objectives

• Explain how element symbols and chemical formulas represent matter in a concise way
• Interpret subscripts in formulas to determine particle counts in a compound
• Use balanced symbolic representations to connect qualitative descriptions to quantitative composition