Grade 9 Science Worksheets

Learning Objectives

• Understand how resource extraction affects ecosystems and landforms.
• Identify the environmental consequences of mining, fossil fuel use, and water withdrawal.
• Evaluate criteria for assessing the sustainability of resource use.+ Show more

Learning Objectives

• Understand how orbital parameters such as eccentricity, axial tilt, and precession influence seasonal insolation and climate variability.
• Explain the gravitational effects of the Moon and Sun in terms of tidal forces and resonance phenomena.
• Connect orbital dynamics to observable effects like changes in day length, tidal range, and long-term climate modulation.

Learning Objectives

• Understand human influences on watershed processes such as urbanization, deforestation, agriculture, and infrastructure.
• Identify consequences of watershed alterations including runoff, sediment load, nutrient fluxes, and groundwater recharge.
• Relate changes in watershed practices to channel morphology, flood frequency, and aquatic ecosystem health.+ Show more

Learning Objectives

• Describe the sources of energy within Earth systems, including solar radiation and geothermal heat.
• Explain how energy is transferred through conduction, convection, and radiation.
• Analyze how energy gradients drive atmospheric and oceanic circulation, weathering, and tectonic processes.+ Show more

Learning Objectives

• Understand the concept of compounds as substances composed of two or more elements in fixed ratios.
• Explain how covalent and ionic bonds influence the properties of compounds.
• Clarify the law of definite proportions and its significance in chemistry.+ Show more

Learning Objectives

• Understand the key features that distinguish elements, compounds, and mixtures.
• Learn how to represent elements and compounds using symbols and formulas.
• Identify and classify substances as pure substances or mixtures based on their composition.+ Show more

Learning Objectives

• Define chemical properties and identify common examples.
• Explain signs that indicate a chemical change has occurred.
• Differentiate between physical and chemical changes based on reaction evidence.+ Show more

Learning Objectives

• Differentiate between homogeneous and heterogeneous mixtures.
• Describe physical methods for separating mixture components based on their physical properties.
• Identify examples of mixtures such as saltwater, soil, and air.+ Show more

Learning Objectives

• Explain the principle of conservation of mass in closed systems during chemical reactions.
• Describe how total mass before and after a reaction remains constant in sealed environments.
• Differentiate between apparent mass changes caused by gases and true mass conservation.+ Show more

Learning Objectives

• Understand the concept of chemical change and how it differs from physical change.
• Identify observable indicators of chemical reactions such as temperature change, gas production, precipitate formation, and color change.
• Interpret the microscopic processes involved in chemical reactions and distinguish them from physical rearrangements.+ Show more

Learning Objectives

• Identify and describe the different types of chemical reactions: synthesis, decomposition, single displacement, double displacement, and combustion.
• Recognize practical examples and observable outcomes of each reaction type.
• Understand how reaction patterns relate to reactant-product relationships and conservation of mass.+ Show more

Learning Objectives

• Describe the processes involved in the dissolving of solutes in solvents.
• Explain how solute-solvent interactions influence solution types.
• Identify factors such as temperature and agitation that affect solubility.+ Show more

Learning Objectives

• Understand and define physical properties as observable or measurable characteristics of materials.
• Identify common physical properties such as density, melting point, boiling point, colour, hardness, and conductivity.
• Interpret how physical properties are used to classify and separate different materials.+ Show more

Learning Objectives

• Define and distinguish between physical and chemical changes.
• Identify examples of physical changes such as melting, freezing, evaporation, condensation, and dissolution.
• Explain how energy transfer affects phase changes.+ Show more

Learning Objectives

• Understand the symbolic representation of reactants and products in chemical equations.
• Explain the importance of balancing chemical equations to reflect conservation of atoms and mass.
• Identify examples of chemical reactions such as combustion and water formation to demonstrate stoichiometry.+ Show more

Learning Objectives

• Understand the structure and functions of physical barriers like skin and mucosa in immune defense.
• Identify cellular mediators involved in innate and adaptive immunity.
• Explain mechanisms of inflammation, memory formation, and immune modulation by external factors.+ Show more

Learning Objectives

• Understand how lifestyle and environmental factors impact human health.
• Interpret epidemiological data and physiological mechanisms related to chronic conditions.
• Analyze the effects of nutrition, activity, tobacco, pollutants, and sleep on cellular and systemic health.+ Show more

Learning Objectives

• Understand the structure and function of the cardiovascular system in transporting oxygen, nutrients, and wastes.
• Identify the roles of the heart chambers, valves, and blood vessels in circulation.
• Explain the mechanisms of blood flow regulation, including vascular resistance and cardiac output.+ Show more

Learning Objectives

• Explain hierarchical relationships among cells, tissues, organs, and systems using canonical examples.
• Describe how cell specialization and extracellular matrices produce emergent organ functions.
• Understand how tissue arrangement supports organ-level processes and their role in physiological capacity.

Learning Objectives

• Describe the mechanisms of hormonal regulation and feedback loops in the endocrine system.
• Explain how hormones such as insulin, glucagon, and thyroid hormones regulate physiological processes.
• Identify cellular effects of hormones including gene expression and enzyme activity changes.+ 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 processes involved in cellular energy metabolism, including glycolysis, the citric acid cycle, and oxidative phosphorylation.
• Understand how mitochondrial structure supports ATP synthesis and proton gradients.
• Differentiate between aerobic and anaerobic pathways and their tissue-specific roles.+ Show more

Learning Objectives

• Understand phase changes in terms of energy transfer and particle motion.
• Explain the concepts of latent heat during phase transitions.
• Relate heating and cooling curves to energy transfer and particle behavior.+ Show more

Learning Objectives

• Describe the organization of the nervous system from neurons to neural circuits.
• Explain how action potentials and synaptic transmission propagate signals.
• Understand how cellular features influence conduction velocity and processing capacity.+ Show more

Learning Objectives

• Understand the mechanism of pulmonary gas exchange at the alveolar–capillary interface.
• Identify factors influencing diffusion of oxygen and carbon dioxide during respiration.
• Explain how ventilation and perfusion matching optimize gas exchange.+ Show more

Learning Objectives

• Describe the mechanisms of molecular movement across cellular membranes, including diffusion, facilitated diffusion, osmosis, and active transport.
• Explain the roles of electrochemical gradients and membrane potential in membrane transport processes.
• Differentiate between paracellular and transcellular pathways in epithelial tissues.+ Show more

Learning Objectives

• Define power as the rate of energy transfer or work per unit time in mechanical systems.
• Explain the concepts of average and instantaneous power and their units.
• Describe how mechanical efficiency is calculated and what factors affect it.+ Show more

Learning Objectives

• Understand the principle of action–reaction force pairs in Newton's third law.
• Identify examples of force pairs in various physical interactions.
• Distinguish between internal and external forces within multibody systems.+ Show more

Learning Objectives

• Understand the mathematical formulation of Newton's second law in vector form.
• Differentiate between mass and weight and their roles in dynamics.
• Analyze how net force relates to acceleration and inertia in physical systems.+ Show more

Learning Objectives

• Understand Newton's first law as a statement about inertia and motion.
• Explain the relationship between net external force and changes in an object's motion.
• Distinguish between static and dynamic equilibrium states.+ Show more

Learning Objectives

• Interpret position–time and velocity–time graphs in the context of motion.
• Understand how the slope of a position–time graph indicates velocity and how the slope of a velocity–time graph indicates acceleration.
• Recognize that the area under a velocity–time graph corresponds to displacement.+ Show more

Learning Objectives

• Understand the conventions and components of free-body diagrams for isolated objects.
• Identify and represent the fundamental forces acting on objects, such as weight, normal force, tension, and friction.
• Apply free-body diagrams to analyze scenarios involving inclined planes and hanging masses.+ 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

• 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

• 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

• Distinguish between contact and non-contact forces with qualitative descriptions.
• Identify examples of forces such as gravity, friction, tension, and electromagnetic interactions.
• Describe the magnitude, direction, and point of application of different forces.+ 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 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 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 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 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 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 the principles of mechanical energy conservation in ideal systems.
• Explain how kinetic and potential energies interconvert in systems with negligible non-conservative forces.
• Identify the effects of non-conservative forces like friction on energy dissipation.+ Show more

Learning Objectives

• Explain the mechanisms driving surface and deep ocean currents and their roles in climate regulation.
• Identify features such as gyres, upwelling zones, and boundary currents and describe their effects on regional environments.
• Describe how changes in ocean circulation patterns can influence climate systems and weather extremes.+ 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