Grade 9 Worksheets

Learning Objectives

• Explain the gravitational interactions among the Moon, Sun, and Earth that produce tidal forces.
• Differentiate between spring and neap tides based on the relative positions of celestial bodies.
• Describe how local geography influences tidal amplitudes and effects.+ Show more

Learning Objectives

• Describe the major structural features of cells, including membranes, organelles, and the cytoskeleton.
• Explain how cellular structures are related to their specific functions such as transport, metabolism, and support.
• Analyze how changes in membrane composition or organelle integrity affect cell processes like diffusion and metabolic efficiency.+ Show more

Learning Objectives

• Identify the characteristics of ionic, covalent, and metallic bonds.
• Understand how electron arrangements determine the type of bonding.
• Explain the physical properties resulting from different bond types.+ Show more

Learning Objectives

• Describe the different types of passive and active membrane transport processes.
• Explain how membrane transport affects cellular functions such as homeostasis, nutrient uptake, and volume regulation.
• Identify mechanisms such as diffusion, facilitated diffusion, osmosis, active transport, and vesicular transport.

Learning Objectives

• Understand the geometric relationship between the Sun, Earth, and Moon during different lunar phases.
• Describe the cycle of lunar phases and what causes the sequence from new to full and back.
• Explain how lunar phases influence nocturnal illumination and tides.+ Show more

Learning Objectives

• Understand how greenhouse gases trap outgoing radiation and influence Earth's surface temperature.
• Identify natural and human sources of greenhouse gases.
• Explain the impact of changes in atmospheric composition on climate.+ Show more

Learning Objectives

• Explain the three main components of Milankovitch cycles: eccentricity, axial tilt, and precession.
• Describe how these cycles influence Earth's climate and glacial periods.
• Interpret how geological records support the link between orbital variations and climate change.+ Show more

Learning Objectives

• Understand the geological processes involved in mountain formation from plate convergence and collision.
• Identify key features and structures associated with mountain ranges and orogenic events.
• Explain how weathering and erosion shape mountain landscapes over time.+ Show more

Learning Objectives

• Understand the principle of conservation of energy in isolated systems.
• Explain how potential and kinetic energy interchange during motion.
• Describe the effects of nonconservative forces like friction on mechanical energy.+ Show more

Learning Objectives

• Understand how seismic waveforms are used to interpret Earth's subsurface structures.
• Compare P- and S-wave arrivals, waveform amplitudes, and frequency content to identify earthquake characteristics.
• Analyze travel-time curves and epicenter maps to determine earthquake depth and fault behavior.+ Show more

Learning Objectives

• Describe the mechanisms that generate genetic variation such as mutations, chromosomal rearrangements, and recombination.
• Explain how molecular changes like mutations and recombination influence phenotype and heritable traits.
• Analyze how variations at the population level can affect allele frequencies and gene expression.+ Show more

Learning Objectives

• Describe the structure of DNA and its double-helix organization.
• Explain how chromosomes carry genetic information and are organized in the nucleus.
• Differentiate between nuclear and organelle genomes.+ Show more

Learning Objectives

• Understand the process of fertilization as gamete fusion leading to zygote formation.
• Compare internal and external fertilization strategies with real-world examples.
• Explain embryonic development stages, including cell differentiation and morphogenesis.+ Show more

Learning Objectives

• Explain the basic components of atomic structure: protons, neutrons, and electrons
• Define atomic number and mass number and their significance for isotopes
• Describe simple models of nuclei and electron shells to illustrate chemical behavior+ Show more

Learning Objectives

• Understand the differences between ionic, covalent, and metallic bonding based on atom interactions.
• Identify properties of compounds resulting from different bond types, such as melting points, solubility, and crystal structures.
• Relate bonding types to real-world materials and applications, including industrial and environmental contexts in Alberta.

Learning Objectives

• Understand how to interpret coefficients in balanced chemical equations to determine proportional relationships among reactants and products.
• Learn to relate symbolic chemical equations to real-world mass calculations in industrial systems.
• Apply mass conservation principles to estimate the amount of substances formed or consumed in chemical reactions.

Learning Objectives

• Understand the principles of safe and effective electrical system use in various applications.
• Learn to match device ratings and functions with appropriate power sources and environmental conditions.
• Identify protective measures essential for safety and efficiency in electrical systems.+ Show more

Learning Objectives

• Understand the concepts of electric current, voltage, and resistance as fundamental electrical quantities.
• Interpret units and symbols associated with electrical measurements.
• Compare typical magnitudes of electrical quantities in regional applications such as transmission lines and household circuits.+ Show more

Learning Objectives

• Understand the principles of diagnostic reasoning in electrical faults.
• Identify symptoms and interpret measurement data to infer failure modes.
• Apply logical inference to diagnoses involving open circuits, short circuits, or component degradation.+ Show more

Learning Objectives

• Understand how friction and aerodynamic drag oppose motion and transform mechanical energy into thermal energy.
• Explain how surface texture, normal force, and speed influence friction on different terrains.
• Describe how air density and shape affect drag on various objects like vehicles and wind turbine blades.+ Show more

Learning Objectives

• Understand how the slope of displacement-time, velocity-time graphs relates to physical motion parameters.
• Interpret the area under a velocity-time graph to determine displacement.
• Identify curved graphs indicating non-uniform acceleration and understand their physical causes.+ Show more

Learning Objectives

• Understand the concept of relative motion and how it depends on the observer's frame of reference.
• Identify examples illustrating how velocity vectors combine depending on frame choice.
• Analyze regional transport and recreation scenarios to compare measured and expected motion.+ Show more

Learning Objectives

• Understand the types of simple machines and their functions.
• Explain how simple machines transfer forces to reduce effort or change direction.
• Analyze real-world applications of simple machines in farm implements, tools, and construction equipment.+ Show more

Learning Objectives

• Understand how conservation of mass applies in balanced chemical equations.
• Relate moles, mass, and particle counts using molar mass conversions.
• Identify limiting reagents and calculate reaction yields.+ Show more

Learning Objectives

• Explain how thermoregulation maintains internal body temperature within limits.
• Identify key physiological responses involved in thermoregulation.
• Describe the role of the hypothalamus in temperature regulation.+ Show more

Learning Objectives

• Explain the concept of a limiting reactant in chemical reactions.
• Calculate the theoretical yield from balanced chemical equations and molar ratios.
• Differentiate between actual yield and theoretical yield, and calculate percent yield.+ Show more

Learning Objectives

• Understand the process of seafloor spreading at mid-ocean ridges.
• Identify how magnetic striping provides evidence for symmetrical reversals in Earth's magnetic field.
• Describe how oceanic crust age progression helps document plate movements and ocean basin cycles.+ Show more

Learning Objectives

• Understand the concept of power as the rate of energy transfer in mechanical systems.
• Explain how efficiency measures the useful output energy compared to input energy.
• Describe common ways energy is lost in systems, such as heat, sound, or deformation.+ Show more

Learning Objectives

• Understand how mechanical systems contain and exchange energy as kinetic or potential energy.
• Explain how energy transfers occur through work, collisions, and frictional dissipation into heat.
• Describe pathways of energy conversion in systems such as braking a bicycle or compressing a spring.+ Show more

Learning Objectives

• Explain the processes involved in chemical reactions, including atom and bond rearrangements.
• Identify and describe common types of chemical reactions such as combustion, synthesis, and decomposition.
• Understand how symbolic equations represent chemical reactions and relate to mass relationships.+ Show more

Learning Objectives

• Understand the concept of net force as the vector sum of all forces acting on an object.
• Analyze how net force determines an object's acceleration and motion changes in real-world scenarios.
• Evaluate the effects of opposing forces such as friction and air resistance on net force calculations.+ Show more

Learning Objectives

• Define and describe observable properties of materials.
• Identify common observable properties such as colour, hardness, and solubility.
• Explain how observable properties are used to classify and distinguish substances.+ Show more

Learning Objectives

• Understand the basic scalar and vector measures used to describe motion.
• Differentiate between speed, velocity, and acceleration in various real-world contexts.
• Apply unit conversions and sign conventions to analyze motion data.+ Show more

Learning Objectives

• Explain the principle of energy conservation in mechanical systems.
• Identify energy transformations in real-world scenarios like hydroelectric dams and skiing.
• Describe the effects of non-conservative forces such as friction on energy transfer.+ Show more

Learning Objectives

• Understand how wind and solar resources are integrated into the electrical grid.
• Describe the challenges of variability and intermittency in renewable energy sources.
• Explain grid balancing mechanisms and storage solutions for renewable energy.+ Show more

Learning Objectives

• Understand the principles of combining series and parallel circuits.
• Learn methods for simplifying complex electrical networks.
• Identify equivalent resistances in mixed circuit configurations.+ Show more

Learning Objectives

• Understand the three main states of matter: solid, liquid, and gas.
• Describe the particles and arrangements characteristic of each state.
• Explain phase transitions such as freezing, evaporation, and condensation.+ Show more

Learning Objectives

• Understand the concept and notation of element symbols and chemical formulas.
• Identify common chemical formulas for familiar substances.
• Explain the importance of balanced chemical formulas in scientific communication.+ Show more

Learning Objectives

• Understand how reproductive strategies influence genetic diversity and adaptation.
• Trace inheritance patterns of traits through chromosomes and Mendelian laws.
• Analyze the ecological and societal impacts of technological choices in agriculture and breeding.+ Show more

Learning Objectives

• Understand the law of conservation of mass during chemical changes.
• Identify how balanced chemical equations reflect mass conservation.
• Explain the significance of mass conservation in stoichiometry and reactions.+ Show more

Learning Objectives

• Understand how mass affects acceleration according to Newton's Second Law.
• Distinguish between inertial mass and gravitational effects.
• Apply the force–acceleration relationship in practical scenarios.+ Show more

Learning Objectives

• Understand how impulse relates force, contact time, and changes in momentum during collisions.
• Differentiate between elastic and inelastic collisions based on energy conservation and energy transfer.
• Analyze force-time profiles to evaluate collision outcomes and predict changes in velocity.+ Show more

Learning Objectives

• Understand the concept of friction and how it opposes relative motion between surfaces.
• Differentiate between static and kinetic friction and their effects during motion.
• Explain factors that influence the magnitude of frictional forces, including surface properties and normal force.+ Show more

Learning Objectives

• Understand the purpose and components of free body diagrams.
• Learn how to sketch forces acting on a single object.
• Calculate net force using vector addition of forces in free body diagrams.+ Show more

Learning Objectives

• Understand the roles of insulin and glucagon in blood glucose regulation.
• Describe how endocrine feedback loops maintain metabolic homeostasis.
• Identify tissues involved in glucose uptake and release.+ Show more

Learning Objectives

• Describe the process of subduction and how it forms deep oceanic trenches.
• Explain the geological and seismic phenomena associated with subduction zones.
• Identify factors that influence the topography and hazards of subduction margins.+ Show more

Learning Objectives

• Understand the concept of work in relation to force, displacement, and energy transfer.
• Identify how positive and negative work affect an object's energy.
• Describe different scenarios where work is done, such as lifting, pushing, and compressing objects.+ Show more

Learning Objectives

• Understand the definition of net force and its role in motion.
• Learn how to calculate net force by resolving forces into components and adding them.
• Identify the conditions when forces are balanced or unbalanced and their effects on motion.+ Show more