Grade 9 Science Worksheets

Learning Objectives

• Understand the fundamental principles of oxidation and reduction in redox reactions.
• Identify oxidation states of atoms in chemical species and track electron transfer.
• Explain how redox reactions are involved in processes like combustion and displacement.+ Show more

Learning Objectives

• Understand how external forces influence the motion of objects.
• Analyze free-body diagrams to identify net forces and predict acceleration.
• Apply Newton's second law to various scenarios involving forces and motion.+ Show more

Learning Objectives

• Describe the concept of energy profiles and their significance in chemical reactions.
• Differentiate between exothermic and endothermic reactions based on energy profiles.
• Identify transition states and activation energy barriers in reaction pathways.+ Show more

Learning Objectives

• Interpret position–time and velocity–time graphs by relating slope to velocity and acceleration.
• Determine displacement from the area under a velocity–time graph and explain sign changes.
• Connect piecewise motion on graphs to changes in kinematic variables and Newton’s second law.

Learning Objectives

• Explain how homeostatic feedback loops maintain internal stability using sensors, control centers, and effectors.
• Differentiate negative feedback from positive feedback based on how each responds to deviations from a set point.
• Apply feedback principles to real physiological examples such as blood pressure regulation and blood clotting.

Learning Objectives

• Explain how insulin and glucagon act as hormonal regulators to maintain blood glucose near a set point.
• Describe the negative feedback loop involved in blood glucose control using beta cells, alpha cells, liver, and muscle.
• Connect glucose regulation to energy balance by tracing how tissues store or release glucose.

Learning Objectives

• Understand the functions and roles of different cell organelles.
• Identify the specific activities carried out by mitochondria, ribosomes, endoplasmic reticulum, Golgi apparatus, lysosomes, and peroxisomes.
• Explain how organelle specialization supports cellular efficiency and coordination of metabolic pathways.+ Show more

Learning Objectives

• Understand the composition and function of different organ tissues.
• Describe how organs and organ systems work together to sustain life.
• Identify examples of organ systems and their interconnected roles.+ Show more

Learning Objectives

• Identify the four main tissue types and their functions.
• Describe how tissue structure relates to its function.
• Explain the role of specialized cells in different tissues.+ Show more

Learning Objectives

• Define inertia and explain its relationship to an object's mass.
• Describe real-world examples demonstrating inertia in everyday life.
• Understand how forces overcome inertia to change an object's motion.+ Show more

Learning Objectives

• Understand the basic concepts of force and how it affects motion.
• Identify contact and non-contact forces in real-world Alberta settings.
• Explain how magnitude and direction of forces combine vectorially.+ Show more

Learning Objectives

• Understand the concept of energy conservation in closed and open systems.
• Identify and interpret energy flow diagrams and mathematical representations of energy transfers.
• Explain how energy reservoirs and system boundaries relate to total energy constancy.+ Show more

Learning Objectives

• Understand how multiple bodies and forces interact within complex mechanical systems.
• Apply Newton's laws, net force analysis, and energy accounting to predict system motion.
• Identify energy transfer, energy loss, and dominant forces during system events like collisions.+ Show more

Learning Objectives

• Explain Mendelian inheritance patterns including dominant and recessive alleles.
• Distinguish between genotype and phenotype in genetic traits.
• Use Punnett squares to predict inheritance ratios for single-gene traits.+ Show more

Learning Objectives

• Understand the role of genes as DNA segments that encode proteins and influence traits.
• Describe the processes of transcription and translation in gene expression.
• Explain how gene regulation affects phenotype and how environmental factors can modulate gene expression.+ Show more

Learning Objectives

• Explain how molecular, cellular, and organ-level interactions contribute to organismal health and disease.
• Interpret data from biochemical assays, histology, and organ function metrics to understand physiological states.
• Link genetic variation to cellular responses and organ system performance in health and disease.+ Show more

Learning Objectives

• Identify the major components of a cell and their functions.
• Explain how structural features like membranes and organelles contribute to cellular processes.
• Analyze the impact of alterations in membrane composition and organelle integrity on cell function.+ Show more

Learning Objectives

• Explain how matter cycles through ecosystems using examples of carbon, nitrogen, and phosphorus.
• Describe how respiration, decomposition, and nutrient uptake connect organisms to air, water, and soil.
• Compare the movement of matter with the movement of energy in trophic transfers.

Learning Objectives

• Explain how urbanization, deforestation, agriculture, and infrastructure can alter watershed hydrology and water quality
• Describe consequences of watershed change for runoff patterns, sediment load, nutrient fluxes, and groundwater recharge
• Use measurement indicators such as discharge and turbidity to evaluate watershed conditions+ Show more

Learning Objectives

• Explain how frequency, wavelength, and amplitude describe different aspects of a wave
• Use the relationship between wave speed, frequency, and wavelength to interpret changes in wave patterns
• Interpret how amplitude affects the strength and energy associated with a wave signal+ Show more

Learning Objectives

• Define chemical properties as tendencies of matter to undergo specific chemical changes.
• Identify evidence of chemical change using observations such as gas production, precipitate formation, and permanent color change.
• Explain how examples like iron rusting and methane combustion show formation of new substances and energy exchange.

Learning Objectives

• Explain the difference between constraints and criteria in engineering design decisions.
• Identify trade-offs among cost, time, materials, safety, and reliability.
• Use criteria weighting and constraint limits to justify a design choice.

Learning Objectives

• Define physical properties as observable or measurable characteristics that do not change a substance’s chemical identity.
• Identify and use examples of physical properties such as density, melting point, boiling point, colour, hardness, and conductivity.
• Distinguish intensive properties from extensive properties and explain why that distinction matters for comparing materials.

Learning Objectives

• Explain how mechanical and chemical digestion prepare food for absorption in the small intestine.
• Describe how villi and microvilli increase surface area to enhance nutrient transport into intestinal epithelium.
• Compare how monosaccharides, amino acids, and lipids are transported from the intestinal lining into the bloodstream.+ Show more

Learning Objectives

• Explain how the kidney forms urine through glomerular filtration, selective reabsorption, secretion, and urine concentration.
• Describe how hydrostatic pressure and oncotic pressure drive glomerular filtration.
• Analyze tubular mechanisms (including countercurrent multiplication) that reclaim water and concentrate solutes.+ Show more

Learning Objectives

• Explain how eccentricity, axial tilt, and precession change seasonal insolation patterns.
• Describe how tidal forcing from the Moon and Sun arises from gravitational gradients and relative geometry.
• Connect orbital and tidal interactions to observable consequences such as day length, tidal range, and long-term climate variability.

Learning Objectives

• Explain how heat transfer occurs due to temperature differences between a system and its surroundings.
• Describe how work transfer occurs when forces act through a distance, changing a system’s energy.
• Distinguish heat and work as specific energy-transfer pathways in both physical and chemical changes.+ Show more

Learning Objectives

• Explain conservation of atoms using particle-level rearrangement during chemical reactions.
• Connect conservation of mass in a closed system to evidence from reactants and products.
• Use balanced accounting (atoms and mass) to predict which product quantities are possible.

Learning Objectives

• Understand how measured mass reflects the conservation of atoms during chemical reactions.
• Describe how gaseous products can affect apparent mass changes in open systems.
• Explain the importance of accounting for all phases and system boundaries in mass measurements.+ Show more

Learning Objectives

• Differentiate between heterogeneous mixtures and homogeneous solutions based on uniformity and separability.
• Identify key concepts such as solute, solvent, and concentration.
• Describe methods of separating components of mixtures based on physical properties.+ Show more

Learning Objectives

• Understand the basic principles of molecular geometry and electron pair repulsion.
• Identify common molecular shapes such as linear, trigonal planar, tetrahedral, and bent.
• Explain how molecular shape influences polarity and physical properties.+ Show more

Learning Objectives

• Understand the different types of intermolecular forces and how they affect physical properties.
• Identify the factors that influence the strength of intermolecular forces in molecules.
• Relate molecular structure to properties such as boiling point, viscosity, and surface tension.+ Show more

Learning Objectives

• Explain how cellular structures support specific functions (nucleus, mitochondria, and cell membranes).
• Describe how organism-level structures (tissues and body parts) reflect their functional needs.
• Use models to connect physical properties of a structure to its biological role.

Learning Objectives

• Identify and describe common observable properties of substances.
• Understand regional examples illustrating observable traits.
• Apply vocabulary related to observable properties in classification tasks.+ Show more

Learning Objectives

• Understand the process of chemical reactions, including breaking and forming bonds.
• Learn how to interpret chemical formulas and symbolic equations.
• Identify different reaction types using state symbols and stoichiometric coefficients.+ Show more

Learning Objectives

• Apply patterns of chemical behavior to predict reaction products.
• Use conservation principles to determine likely outcomes of reactions.
• Identify common reaction types and their typical products.+ Show more

Learning Objectives

• Understand the concept of physical changes and how they differ from chemical changes.
• Identify examples of physical changes in everyday life and natural environments.
• Explain the reversibility of physical changes and their significance in scientific and practical contexts.+ Show more

Learning Objectives

• Identify Newton’s third-law force pairs by specifying the two interacting objects and the forces acting on each object.
• Explain why third-law forces are equal in magnitude and opposite in direction but can produce different accelerations.
• Apply third-law ideas to propulsion, gravity interactions, and contact forces in collisions.+ Show more

Learning Objectives

• Explain how differences in organelle form and abundance relate to specialized cellular functions
• Use examples (smooth ER, mitochondria, vacuoles, cilia/flagella) to connect structure to function
• Compare cell adaptations in animals and plants using evidence from organelle structure+ Show more

Learning Objectives

• Explain Newton’s second law using the proportional relationship between net force, mass, and acceleration
• Use vector reasoning to determine the direction of acceleration from the net force
• Distinguish mass from weight and apply unit consistency to solve problems

Learning Objectives

• Use constant-acceleration kinematic equations to relate displacement, time, velocity, and acceleration
• Apply sign conventions correctly for one-dimensional motion, including vertical free fall
• Use component-wise reasoning to analyze horizontally projected motion under uniform gravity

Learning Objectives

• Describe the roles of innate and adaptive immune responses in maintaining homeostasis.
• Explain how immune cells communicate with other systems like endocrine and circulatory pathways.
• Identify key components and functions of the immune system in defense and tissue repair.+ Show more

Learning Objectives

• Understand the different types of microscopes and their functions.
• Identify how models help interpret microscopic structures.
• Explain the importance of scale and spatial relationships in cellular observations.+ Show more

Learning Objectives

• Understand the concept of homeostasis and its importance in maintaining internal body conditions.
• Identify the role of sensors, integrating centers, and effectors in feedback mechanisms.
• Describe how various body systems contribute to homeostasis, including respiratory, circulatory, endocrine, renal, and nervous systems.

Learning Objectives

• Explain how friction opposes relative motion between surfaces and converts kinetic energy into thermal energy.
• Differentiate between static and kinetic friction and understand their roles in motion.
• Identify factors affecting the magnitude of frictional forces and their impact on objects' acceleration.+ Show more

Learning Objectives

• Identify key structural differences between prokaryotic and eukaryotic cells.
• Explain how cellular organization influences function and complexity.
• Compare and contrast the components of prokaryotic and eukaryotic cells.+ Show more

Learning Objectives

• Identify the basic functions of a cell and its components.
• Describe the roles of different organelles within a cell.
• Explain how cell structure relates to its function.+ Show more

Learning Objectives

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