Grade 9 Science Worksheets

Learning Objectives

• Explain how VSEPR theory uses electron pair repulsion to predict molecular geometry
• Identify common molecular shapes (linear, trigonal planar, tetrahedral, and bent) from electron regions
• Describe how molecular shape affects polarity and related macroscopic properties such as boiling point and solubility

Learning Objectives

• Identify and describe the different layers of Earth's interior.
• Explain how seismic waves reveal information about Earth's internal structure.
• Understand the transfer of heat within Earth's layers and how it influences planetary processes.

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 the fundamental tradeoffs involved in digital and analog communication systems.
• Evaluate system performance metrics such as bandwidth, signal-to-noise ratio, and channel capacity.
• Analyze case studies related to bandwidth limitations and error correction in communication systems.+ Show more

Learning Objectives

• Analyze historical atmospheric CO₂ records, land-use change, and temperature trends to understand human impact on climate.
• Identify evidence of anthropogenic effects such as fossil fuel combustion, deforestation, and urbanization.
• Explain how satellite data and the Keeling Curve illustrate changes in biosphere and hydrosphere.+ Show more

Learning Objectives

• Understand the concept of evaluation metrics in scientific design decisions.
• Identify key performance indicators used in comparing engineering solutions.
• Analyze how different metrics influence the choice of systems such as wind turbines and transportation components.+ Show more

Learning Objectives

• Understand how microscopy provides visual cell models and scales.
• Identify different types of microscopes and their features.
• Explain how diagrammatic and physical models aid in understanding cellular structures.+ Show more

Learning Objectives

• Analyze the structure and function of nephrons in blood filtration and urine formation.
• Describe the processes of glomerular filtration, reabsorption, secretion, and concentration of urine.
• Explain how renal regulation maintains electrolyte balance, acid-base homeostasis, and blood pressure.+ Show more

Learning Objectives

• Describe the processes involved in the rock cycle, including melting, crystallization, erosion, compaction, and metamorphism.
• Identify examples of different rock types and how they are formed through various geological processes.
• Explain the role of pressure, temperature, and fluid flow in transforming rocks over time.+ Show more

Learning Objectives

• Describe the processes involved in the rock cycle, including melting, crystallization, weathering, transport, deposition, and metamorphism.
• Explain the physical and chemical mechanisms that drive transformations among igneous, sedimentary, and metamorphic rocks.
• Relate rock-forming processes to tectonic settings such as mid-ocean ridges, subduction zones, and continental interiors.+ Show more

Learning Objectives

• Understand key observational evidence that constrains the ages of different cosmic events.
• Identify and explain the significance of redshift surveys, Hubble's law, and cosmic microwave background measurements.
• Describe how primordial abundances of elements help determine the universe's timeline.+ Show more

Learning Objectives

• Understand how the body maintains internal temperature through various mechanisms
• Identify functions of skin blood flow, sweating, shivering, and metabolic adjustments
• Describe the role of the hypothalamus in thermoregulation+ Show more

Learning Objectives

• Describe the main stages and components of cellular respiration including glycolysis, the citric acid cycle, and electron transport chain.
• Differentiate between aerobic and anaerobic respiration and their ATP yields.
• Explain how enzyme regulation and substrate availability influence metabolic pathway flux.+ Show more

Learning Objectives

• Understand the mechanisms of reproductive isolation and their role in speciation.
• Explain the difference between allopatric and sympatric speciation models.
• Describe examples of adaptive radiation and hybrid zones in speciation.+ Show more

Learning Objectives

• Understand the hierarchical levels of biological organization from molecules to organisms.
• Identify emergent properties at each biological level.
• Explain how components assemble into complex systems in biology.+ Show more

Learning Objectives

• Explain major sources of mutations, including replication errors and environmental mutagens such as radiation and chemicals.
• Describe how different types of DNA mutations (point mutations, insertions/deletions, and chromosomal changes) can affect gene function or regulation.
• Connect heritable mutations to how genetic variation becomes the raw material for natural selection and evolution.

Learning Objectives

• Describe the processes of transcription and translation in gene expression.
• Identify key components involved in transcribing and translating genetic information.
• Explain how post-transcriptional and post-translational modifications influence protein function.+ Show more

Learning Objectives

• Understand the factors affecting energy efficiency in electrical systems, including resistive losses and power factor.
• Identify various strategies and devices used to improve system performance and reduce energy waste.
• Analyze the impact of inefficient energy systems on the environment and operational costs.+ Show more

Learning Objectives

• Identify the role of producers in ecosystems.
• Understand how producers support other trophic levels.
• Recognize examples of producers in various ecosystems.+ Show more

Learning Objectives

• Identify the basic parts of a cell.
• Describe the functions of different cell organelles.
• Understand how cell structure relates to its function.

Learning Objectives

• Understand how impulse and force-time relationships affect collision safety.
• Analyze force–time graphs to evaluate different mitigation strategies during impacts.
• Compare energy absorption and material deformation techniques for reducing peak forces.+ Show more

Learning Objectives

• Understand the importance of problem framing in engineering design.
• Identify and prioritize various constraints such as social, economic, environmental, and functional requirements.
• Analyze interactions among constraints to develop feasible engineering solutions.+ Show more

Learning Objectives

• Understand the concept of power and how it relates to energy consumption over time.
• Calculate and compare energy demands and efficiencies in different systems and appliances.
• Analyze the impact of transmission losses and system efficiencies on overall energy use.+ Show more

Learning Objectives

• Understand the concept of net force as the vector sum of forces acting on an object.
• Apply principles of vector addition to analyze forces in practical scenarios.
• Evaluate the effects of opposing forces such as friction and air resistance on motion.+ Show more

Learning Objectives

• Understand the tradeoffs involved in digital and analog communication systems.
• Analyze how bandwidth constraints and noise affect signal quality and transmission capacity.
• Evaluate the role of sampling, error correction, and modulation techniques in reliable data transfer.+ Show more

Learning Objectives

• Understand how organelle morphology varies across different cell types and taxa.
• Identify examples of cellular adaptations relating structure to function.
• Relate form and abundance of organelles to specialized physiological roles.+ Show more

Learning Objectives

• Describe the basic components of the cell membrane and their roles.
• Explain the fluid mosaic model and its significance in membrane function.
• Identify how membrane components influence permeability, signaling, and ion regulation.+ Show more

Learning Objectives

• Understand the types of species interactions that shape community structure.
• Explain the roles of keystone species and ecosystem engineers.
• Analyze how species interactions influence energy flow and matter cycling.+ Show more

Learning Objectives

• Understand the processes involved in the water cycle
• Identify different reservoirs of water on Earth
• Explain how water moves among oceans, clouds, land, and ice+ Show more

Learning Objectives

• Understand how electrical components exhibit characteristic behaviors such as resistance and nonlinear conduction.
• Identify real-world examples of electrical components and their behaviors.
• Analyze the effects of temperature and load changes on component performance.+ Show more

Learning Objectives

• Describe the basic principles of electric motors and generators.
• Identify different types of motors and their applications.
• Explain electromagnetic induction and its role in generating electricity.+ Show more

Learning Objectives

• Identify key components of the immune system
• Differentiate between innate and adaptive immune responses
• Explain how immune communication integrates with other body systems

Learning Objectives

• Understand how cells communicate through chemical and electrical messages.
• Identify key components such as receptor proteins, ligands, and signal transduction pathways.
• Differentiate between autocrine, paracrine, endocrine, and synaptic signaling.+ Show more

Learning Objectives

• Understand key concepts related to Science
• Apply knowledge through practice questions
• Demonstrate comprehension of the material

Learning Objectives

• Understand different measures of dispersion such as variance, interquartile range, and range.
• Interpret how distribution shape affects statistical inference and evidence strength.
• Analyze the relationship between variability and sampling, heterogeneity, and theoretical models.+ Show more

Learning Objectives

• Explain how heritable variation leads to differential survival and reproduction in populations.
• Describe examples of natural selection such as beak morphology in finches and bacterial antibiotic resistance.
• Use models to understand types of selection: directional, stabilizing, and disruptive.+ Show more

Learning Objectives

• Identify Earth's internal layers and their characteristics
• Understand how Earth's layers influence surface features
• Describe the processes of plate tectonics, including seafloor spreading and subduction+ Show more

Learning Objectives

• Identify the main lunar phases and their appearance
• Explain how the Moon's position relative to Earth and Sun causes different lunar phases
• Describe the concept of the synodic month and its significance+ Show more

Learning Objectives

• Explain what uncertainty shows on graphs and why it matters for interpreting trends
• Use overlap (or non-overlap) of uncertainty ranges to judge whether differences are likely meaningful
• Select appropriate ways to represent uncertainty, such as error bars or uncertainty bands

Learning Objectives

• Understand the concepts of heat transfer via conduction, convection, and radiation.
• Apply mathematical formulas involving specific heat capacity, mass, and temperature change to calculate thermal energy transfer.
• Identify sign conventions and their significance in heat flow and energy changes within closed systems.+ Show more

Learning Objectives

• Identify observable signs indicating chemical change in materials.
• Distinguish between physical and chemical changes using key markers.
• Explain real-world examples of evidence of chemical change in environmental and industrial contexts.+ Show more

Learning Objectives

• Describe the different types of tissues and their cellular organization.
• Explain how tissue architecture supports organ functions.
• Identify microscopic features that influence tissue permeability, strength, and responsiveness.+ Show more

Learning Objectives

• Understand the principles of mechanical energy conservation in ideal systems.
• Explain the roles of kinetic and potential energy in energy interconversion.
• Identify factors that cause deviations from total mechanical energy conservation.+ Show more

Learning Objectives

• Understand how inclined planes decompose gravitational force into components parallel and perpendicular to the surface.
• Calculate the mechanical advantage of inclined planes and understand their effect on applied force and displacement.
• Analyze the effects of friction and slope angle on net acceleration and energy transfer during motion on inclined planes.+ Show more

Learning Objectives

• Understand fundamental concepts of biotechnology.
• Identify ethical considerations associated with genetic manipulation.
• Analyze societal implications of biotech advances.+ Show more

Learning Objectives

• Understand the concepts of impulse, force, and energy dissipation in collision scenarios.
• Analyze force‑time graphs to evaluate impact mitigation methods such as crumple zones and airbags.
• Describe how materials deform and dissipate energy during collisions to reduce peak forces.+ Show more

Learning Objectives

• Describe the main functions of the circulatory, respiratory, digestive, renal, nervous, and endocrine systems.
• Explain how organ systems communicate and work together to maintain internal stability.
• Identify the roles of the circulatory and respiratory systems in oxygen and nutrient transport.+ Show more

Learning Objectives

• Understand common energy loss mechanisms in electrical systems
• Identify factors that affect power efficiency such as resistive losses and power factor
• Explore strategies for reducing energy waste in system design+ Show more