Grade 9 Worksheets

Learning Objectives

• Understand how surface currents are generated and their role in redistributing heat.
• Identify key features of ocean circulation such as gyres, upwelling zones, and boundary currents.
• Explain how ocean circulation influences regional climates and interacts with atmospheric systems.

Learning Objectives

• Explain how information flows from DNA to RNA to protein and then to phenotype
• Describe how replication fidelity, transcriptional control, RNA processing, and translation affect gene expression
• Predict how point mutations in coding regions versus regulatory regions can change protein function and phenotype+ Show more

Learning Objectives

• Explain how cellular organelles' structures support their specific functions.
• Describe how organism structures reflect their functional needs.
• Use models to connect physical features to biological roles.+ Show more

Learning Objectives

• Understand the role of engineering in addressing societal needs.
• Identify examples of engineering solutions that improve access, safety, and reliability.
• Analyze how technology choices impact social outcomes such as equity and sustainability.

Learning Objectives

• Explain how mechanical digestion and chemical hydrolysis break food into molecules that can be absorbed.
• Describe how intestinal villi and microvilli increase surface area and improve nutrient transport.
• Compare facilitated diffusion, active transport, and transport via micelles for different nutrient types.+ Show more

Learning Objectives

• Understand the concept of uncertainty in scientific measurements.
• Identify common sources of measurement errors such as instrument limitations, human judgment, and environmental factors.
• Evaluate how measurement uncertainties can impact scientific conclusions.

Learning Objectives

• Identify and explain the concepts of mean, median, and mode in biological data.
• Understand when to use each measure based on data distribution.
• Analyze biological datasets for skewness, outliers, and multimodality.+ Show more

Learning Objectives

• Explain how chemical reactions rearrange atoms and can exchange energy with the environment.
• Identify common types of chemical reactions (combustion, synthesis, decomposition) from real-world examples.
• Interpret symbolic chemical equations by matching reactants to products.+ Show more

Learning Objectives

• Identify the main idea of photosynthesis and key details about inputs and outputs
• Explain how light energy becomes chemical energy using chloroplast structures and steps

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 key processes involved in the carbon cycle
• Explain how carbon moves through ecosystems
• Understand the role of decomposers and producers in the carbon cycle+ Show more

Learning Objectives

• Explain how genes and alleles determine genotypes and lead to observable phenotypes
• Use dominant and recessive inheritance relationships to predict trait outcomes across generations
• Interpret heredity evidence using genotype-to-phenotype reasoning

Learning Objectives

• Define limiting reactant in a chemical reaction
• Identify the limiting reactant from initial quantities
• Differentiate between theoretical and actual yields+ Show more

Learning Objectives

• Understand the structure of electron shells and energy levels
• Identify how electrons are distributed in atoms based on their electron configuration
• Recognize the importance of valence electrons in chemical reactivity and bonding+ Show more

Learning Objectives

• Explain how intermolecular forces influence physical properties such as boiling point and viscosity
• Differentiate between London dispersion forces, dipole–dipole interactions, and hydrogen bonding
• Relate molecular polarity and molecular size to the strength of intermolecular attractions+ Show more

Learning Objectives

• Describe how forces act as push or pull interactions and identify examples of contact and non-contact forces in everyday Alberta contexts.
• Use magnitude and direction to reason about forces as vectors, including how opposing forces affect motion.
• Explain, qualitatively, how net force expectations relate to whether an object speeds up, slows down, or changes direction.

Learning Objectives

• Explain how inherited variation and environmental pressures lead to changes in a population over generations
• Use the ideas of variation, differential survival/reproduction, and inheritance to describe natural selection
• Analyze how environmental change can alter which traits become more common

Learning Objectives

• Explain how unequal solar heating creates temperature and air pressure differences that drive atmospheric circulation
• Describe how energy transfers between Earth’s surface and the atmosphere influence humidity, clouds, and precipitation
• Use cause-and-effect reasoning to connect weather patterns to temperature, humidity, and energy balance

Learning Objectives

• Understand the factors contributing to air pollution caused by human activities.
• Analyze how different actions impact air quality and ecosystem health.
• Evaluate the tradeoffs involved in reducing air pollution while considering other environmental constraints.+ Show more

Learning Objectives

• Identify different parts of mechanical devices
• Understand how parts interact within a system
• Explain the roles of inputs, outputs, and energy transfers+ Show more

Learning Objectives

• Use dimensional analysis to check that equations for physical and biological quantities have consistent units.
• Derive relationships between quantities by tracking units and identifying plausible proportionality and rate forms.
• Use unit-checking to find and correct algebraic or modeling errors, and to constrain scaling and density/flux/rate computations.

Learning Objectives

• Explain how Earth’s axial tilt and revolution around the Sun produce seasonal patterns in sunlight.
• Describe how the Moon’s synodic cycle leads to repeating lunar phases.
• Interpret how gravitational interactions between Earth, the Moon, and the Sun drive tides.+ Show more

Learning Objectives

• Identify the major step of glomerular filtration in the nephron.
• Explain how filtration differs from reabsorption and secretion.
• Use vocabulary from renal regulation in accurate statements.

Learning Objectives

• Explain how protons, neutrons, and electrons determine atomic structure and ion formation
• Describe how electron configurations and valence electrons relate to chemical properties and periodic trends
• Use quantized energy levels to connect atomic structure models to spectral behavior and reactivity

Learning Objectives

• Understand the concept of net force and how it influences acceleration.
• Identify different forces acting on an object in various scenarios.
• Explain how multiple forces combine to produce net force and change an object's motion.

Learning Objectives

• Explain conservation of energy in isolated systems and distinguish energy transfer between forms.
• Use kinetic and potential energy ideas to predict motion outcomes in mechanical situations.
• Describe how nonconservative forces (like friction) convert mechanical energy into thermal energy.+ Show more

Learning Objectives

• Compare physical and chemical changes using the ideas of energy transfer between a system and its surroundings
• Determine whether a change is endothermic or exothermic based on temperature behavior and direction of energy flow
• Explain how microscopic particle motion/arrangement and bond rearrangement relate to observable temperature changes

Learning Objectives

• Explain what an ecological niche includes, including resources, space, and functional role in an ecosystem.
• Describe how feeding relationships and environmental tolerances affect competition and survival.
• Use niche concepts to predict how changes in environmental conditions can reorganize communities.

Learning Objectives

• Understand the concept of homeostasis and its importance in maintaining internal stability.
• Identify feedback mechanisms, especially negative feedback, that regulate body conditions.
• Describe how systems respond to deviations from set points to preserve organismal health.+ Show more

Learning Objectives

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

Learning Objectives

• Explain how uncertainty differs from error and identify sources of random variation and systematic error in measurement data.
• Use uncertainty and significant figures to report measurements appropriately and compare results using error bounds.
• Interpret statements about scientific agreement and uncertainty when reasoning about experimental results.

Learning Objectives

• Understand the main functions of the immune system
• Differentiate between innate and adaptive immune responses
• Recognize how immune communication integrates with other body systems+ Show more

Learning Objectives

• Understand the different types of species interactions that shape community structure.
• Identify examples of ecosystem engineers and keystone species.
• Explain how indirect effects influence ecosystem stability.+ Show more

Learning Objectives

• Explain how water vapor, saturation, and relative humidity are related to cloud formation.
• Describe how lifting and cooling of air lead to condensation and the release of latent heat.
• Connect atmospheric stability and vertical motion to the appearance and development of different cloud types.+ Show more

Learning Objectives

• Understand the process of cloud formation
• Identify the role of moisture and temperature in the atmosphere
• Recognize different types of clouds and their characteristics+ Show more

Learning Objectives

• Explain how balancing coefficients in a chemical equation preserves conservation of atoms
• Use systematic strategies to balance simple chemical equations with whole-number coefficients
• Interpret balanced equations quantitatively using stoichiometric coefficients+ Show more

Learning Objectives

• Explain why circular motion requires a centripetal net force directed toward the center.
• Use the relationship between centripetal acceleration, speed, and radius to predict how motion changes.
• Identify and analyze the forces (tension, friction, normal force) that provide the inward centripetal force.

Learning Objectives

• Identify how uncertainty (error bars and uncertainty bands) is used to show limits in measurements.
• Interpret whether differences or trends are meaningful by comparing overlap or separation of uncertainties.
• Explain why measurement noise can change the strength of conclusions drawn from graphs.

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

• Explain how mechanical energy is conserved when non-conservative forces are negligible
• Describe how kinetic and gravitational potential energy convert in real motion under gravity
• Account for energy dissipation when friction or other non-conservative forces do work+ Show more

Learning Objectives

• Understand Newton’s third law of motion and the concept of action-reaction force pairs.
• Identify examples of action-reaction forces in everyday situations.
• Explain how forces acting on different objects affect their motion and momentum.

Learning Objectives

• Explain how matter cycles through ecosystems as producers, consumers, and decomposers transform nutrients and elements.
• Describe how organisms at different trophic levels exchange matter while maintaining conservation of matter.
• Use evidence from food webs and decomposition processes to predict where elements end up in soil and water.

Learning Objectives

• Interpret weather data patterns using variables such as temperature, humidity (dew point), wind, and pressure
• Explain how short-term weather variability differs from longer-term climate averages
• Use evidence from data trends to describe likely precipitation timing, cloud development, and storm intensity

Learning Objectives

• Explain how compound machines combine simple machines to produce mechanical advantage
• Calculate ideal mechanical advantage using force and displacement relationships
• Compare ideal mechanical advantage with actual performance after accounting for friction and deformation+ Show more

Learning Objectives

• Describe the overall purpose of glycolysis in breaking glucose into two pyruvate molecules
• Explain where ATP is gained and where ATP is invested during glycolysis
• Connect NADH production in glycolysis to aerobic and anaerobic cell conditions

Learning Objectives

• Reflect on the significance of sacrifice, empathy, and compassion in various cultural and religious contexts.
• Develop personal insights through journaling and prose about moral values associated with Good Friday.
• Analyze stories and traditions to understand their emotional and moral lessons.+ Show more

Learning Objectives

• Understand how genetic inheritance occurs through meiosis and gamete formation.
• Identify sources of genetic variation, including chromosome combinations and mutations.
• Explain how diversity in genotypes can lead to evolutionary change.

Learning Objectives

• Explain how the cell membrane controls exchanges between a cell and its environment.
• Describe the roles of cytoplasm, genetic material, and major organelles in cell function.
• Use models (diagrams and scaled 3D representations) to interpret relative size and interactions inside cells.