Grade 9 Worksheets

Learning Objectives

• Understand the concept of proportional relationships among reactants and products in chemical equations.
• Interpret coefficients in balanced equations to relate amounts of substances.
• Calculate mass relationships and conserved quantities in chemical reactions.+ Show more

Learning Objectives

• Understand the fundamental concepts of simple machines and how they reduce effort.
• Identify common examples and applications of lever, wheel and axle, pulley, inclined plane, and screw.
• Explain the difference between ideal mechanical advantage and actual mechanical advantage considering friction and support geometry.+ Show more

Learning Objectives

• Understand the hierarchical structure of biological classification systems.
• Identify key taxonomic ranks and their characteristics.
• Differentiate between traditional and modern classification approaches.+ Show more

Learning Objectives

• Explore how Women's History Month is celebrated around the world through various festivals, marches, and educational events.
• Understand cultural differences and shared values in celebrating women's contributions globally.
• Recognize the importance of intercultural understanding and global citizenship through social justice movements.

Learning Objectives

• Understand what fossils are and how they form
• Identify different types of fossils and their significance
• Learn how fossils help scientists study the past+ Show more

Learning Objectives

• Describe the processes of mitosis and meiosis and their roles in growth and reproduction.
• Explain chromosome pairing, segregation, and errors such as nondisjunction.
• Identify the implications of cell division errors in organisms and agriculture.+ Show more

Learning Objectives

• Understand the inverse-square dependence of gravitational and electrostatic forces on separation distance.
• Apply mathematical formulas to predict the magnitudes and directions of forces between masses and charged objects.
• Analyze scenarios involving planetary attraction and charged particle interactions using force vectors.+ Show more

Learning Objectives

• Understand Newton's three laws of motion and their implications.
• Analyze free-body diagrams to identify forces acting on objects.
• Apply vector decomposition to solve problems involving forces and acceleration.+ Show more

Learning Objectives

• Understand how electric and magnetic fields are represented by vectors and field lines.
• Explain the superposition principle and how forces act on moving charges in fields.
• Describe the curvature of motion of charged particles in uniform magnetic fields and their deflection trajectories.+ Show more

Learning Objectives

• Understand the mechanisms linking oceanic and atmospheric variability in climate phenomena.
• Interpret time-series analyses and lag-correlation maps related to ocean and atmosphere.
• Explain how ocean heat content influences atmospheric circulation and regional climates.+ Show more

Learning Objectives

• Understand the differences between series and parallel circuit arrangements.
• Learn how to determine equivalent resistance in combined circuits.
• Analyze current and voltage distribution in complex circuits.+ Show more

Learning Objectives

• Define homeostasis and understand its significance in maintaining internal body conditions.
• Identify the roles 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

• 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 how mole relationships connect masses of reactants and products using balanced equations.
• Learn how molar mass converts between mass and amount of substance.
• Comprehend how coefficients in balanced equations define mole ratios for reactions.+ Show more

Learning Objectives

• Understand how different organelles coordinate to support cellular functions.
• Identify the pathway of genetic information and protein trafficking within a cell.
• Explain the roles of mitochondria, lysosomes, and peroxisomes in maintaining homeostasis.+ Show more

Learning Objectives

• Explain the roles of producers, consumers, and decomposers in ecosystems.
• Describe how food chains and webs illustrate energy flow among species.
• Identify factors affecting trophic efficiency and ecosystem productivity.+ Show more

Learning Objectives

• Understand the chemical properties of household cleaners and their societal benefits.
• Identify potential risks and environmental impacts of common chemicals.
• Analyze trade-offs between utility and safety in chemical use.+ 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 how different groups and individuals interpret historical events from their perspectives.
• Analyze primary and secondary sources to recognize diverse viewpoints.
• Compare and contrast narratives from Indigenous communities, settlers, and marginalized groups.+ Show more

Learning Objectives

• Understand the concept of genetic drift and how it affects small populations.
• Identify different events that can lead to genetic drift such as bottlenecks and founder effects.
• Explain how chance events influence allele frequencies over time.+ Show more

Learning Objectives

• Identify different classes of levers and their components.
• Explain how levers modify force and displacement to gain mechanical advantage.
• Differentiate between first, second, and third class levers.+ Show more

Learning Objectives

• Understand the different types of tissues and their functions.
• Identify characteristics of epithelial, connective, muscle, and nervous tissues.
• Explain how tissue specialization contributes to organ and body functions.+ Show more

Learning Objectives

• Explain how magnetic fields are generated by permanent magnets and moving electric charges.
• Describe the concept of magnetic field lines and their directional properties.
• Connect regional phenomena like compass navigation and magnetic sensing in industry to magnetic fields.+ Show more

Learning Objectives

• Understand the relationship between net force, mass, and acceleration as described by Newton's second law.
• Analyze how vector quantities like force and acceleration affect an object's motion.
• Apply the proportionality rule to predict an object’s change in speed or direction under various forces.

Learning Objectives

• Understand how to quantify and interpret random and systematic uncertainties in measurements.
• Learn to apply statistical descriptors such as standard deviation, standard error, and confidence intervals.
• Explore procedures for propagating uncertainty through calculations and combined data.+ Show more

Learning Objectives

• Understand how matter cycles through ecosystems involving producers, consumers, and decomposers.
• Identify the roles of different organisms in nutrient transfer and matter conservation.
• Explain the processes that allow ecosystems to reuse essential elements for sustaining life.+ Show more

Learning Objectives

• Understand how source signals are mapped onto carrier waves using amplitude, frequency, and phase modulation.
• Compare different encoding schemes such as pulse-code modulation and amplitude modulation in terms of bandwidth, fidelity, and noise susceptibility.
• Analyze practical examples like fiber-optic pulse trains and radio modulation formats to evaluate encoding choices.+ Show more

Learning Objectives

• Understand the ecological, economic, and health risks associated with genetic technologies.
• Evaluate potential consequences such as gene flow, resistance development, market impacts, and therapeutic opportunities.
• Analyze case examples like canola introgression and cattle genetics in Alberta.+ Show more

Learning Objectives

• Understand the key human activities that influence atmospheric carbon dioxide levels.
• Analyze how land-use change and fossil fuel combustion affect climate variables.
• Interpret data from indicators like the Keeling Curve and satellite imagery to assess environmental changes.+ Show more

Learning Objectives

• Understand the different types of tissues and their cellular organization.
• Identify the functions of epithelial, connective, muscle, and nervous tissues.
• Describe how microscopic features determine tissue functions.+ Show more

Learning Objectives

• Define and identify different types of ecosystem services including provisioning, regulating, cultural, and supporting functions.
• Explain the role of biodiversity in maintaining ecosystem services.
• Assess how human activities like land-use change, pollution, and climate shifts impact ecosystem service delivery.+ Show more

Learning Objectives

• Explain how geologic and atmospheric indicators are used to characterize the origin, frequency, and potential impacts of natural hazards.
• Analyze spatial patterns and triggering mechanisms to describe why some places experience higher hazard and risk.
• Evaluate how recurrence intervals and paleoevidence support risk assessment for human and ecological systems.

Learning Objectives

• Define what constraints are in the context of engineering design.
• Identify various constraints that influence design choices.
• Understand how trade-offs are made when constraints limit options.+ Show more

Learning Objectives

• Describe the roles of major organelles such as mitochondria, chloroplasts, endoplasmic reticulum, and lysosomes in cellular processes.
• Explain how internal structures like folded membranes and stacks relate to their functions such as ATP production and light capture.
• Compare the functions of different organelles and how compartmentation optimizes reaction rates and metabolic pathways.+ Show more

Learning Objectives

• Understand how to quantify and interpret random and systematic uncertainties in datasets.
• Calculate and compare standard deviation, standard error, and confidence intervals.
• Apply basic error propagation methods to combined measurements.+ Show more

Learning Objectives

• Explain the relationship between net force, mass, and acceleration.
• Distinguish between mass and weight.
• Apply Newton's second law to real-world scenarios involving force and motion.

Learning Objectives

• Identify and describe different types of seismic waves
• Understand how seismic waves propagate through Earth
• Relate seismic wave travel times to Earth’s internal structure+ Show more

Learning Objectives

• Explain the concept of net force and how it affects motion.
• Identify when forces are balanced versus unbalanced.
• Resolve forces into components and compute net force.+ Show more

Learning Objectives

• Understand Newton's laws of motion and their relationships among force, mass, and acceleration.
• Analyze free-body diagrams and decompositions of forces acting on objects.
• Apply Newtonian principles to real-world examples such as vehicle acceleration and projectile motion.+ Show more

Learning Objectives

• Understand the various types of species interactions within a community.
• Identify the roles of keystone species and ecosystem engineers.
• Analyze how species relationships influence community structure and ecosystem stability.+ Show more

Learning Objectives

• Explain the mechanical and chemical breakdown processes of digestion.
• Describe how nutrients are absorbed across the intestinal epithelium and the role of villi and microvilli.
• Identify the function of enzymes, bile, and micelles in nutrient digestion and absorption.+ Show more

Learning Objectives

• Understand the key criteria used to establish control and comparability in causal inference.
• Describe how variable isolation, replication, and baseline characterization contribute to causal analysis.
• Evaluate how control considerations influence data collection and model credibility.+ Show more

Learning Objectives

• Understand the basic concepts of metabolic pathways and their organization in cells.
• Differentiate between catabolic and anabolic pathways and their roles in energy management.
• Describe mechanisms of pathway regulation, including feedback inhibition and compartmentalization.+ Show more

Learning Objectives

• Recognize the basic properties of gases such as pressure, volume, and temperature.
• Explain how particle motion relates to gas properties using the particle model.
• Describe how changes in temperature and volume affect gas pressure when particles collide.+ Show more

Learning Objectives

• Understand the principle of conservation of mass during chemical reactions.
• Identify factors affecting measured mass in laboratory experiments.
• Explain the importance of system boundaries in mass measurement.+ Show more

Learning Objectives

• Describe the process of photosynthesis and its main components.
• Identify the inputs and outputs of photosynthesis.
• Explain the compartmentalized steps involved in photosynthesis.+ Show more

Learning Objectives

• Identify suspicious website addresses and potentially unsafe links.
• Explain the purpose and limitations of HTTPS encryption.
• Describe how software updates reduce known security weaknesses.+ Show more

Learning Objectives

• Define authentication, verification, factor, and digital account security.
• Distinguish single-factor authentication from multi-factor authentication.
• Identify knowledge, possession, and biometric authentication factors.+ Show more