Grade 9 Science Worksheets

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 concept and stages of ecological succession.
• Differentiate between primary and secondary succession.
• Identify factors that influence succession trajectories and ecosystem stability.+ Show more

Learning Objectives

• Explain how fossil records provide evidence of past life through preserved remains, impressions, and traces.
• Describe how stratigraphy and radiometric dating contribute to determining fossil ages.
• Evaluate how taphonomy and preservation bias affect which organisms appear in the fossil record.+ Show more

Learning Objectives

• Identify the basic parts of a cell and describe their functions.
• Understand the principles of cell theory and its significance in biology.
• Differentiate between unicellular and multicellular organisms.+ Show more

Learning Objectives

• Understand the concept of phylogenetic trees and their components.
• Identify the differences between monophyletic, paraphyletic, and polyphyletic groups.
• Interpret branch lengths and rooted versus unrooted trees.+ Show more

Learning Objectives

• Explain the process of natural selection and its role in evolution.
• Identify examples of adaptation in Alberta's ecosystems such as prairie grass and snowshoe hares.
• Distinguish between natural and artificial selection and their effects on populations.+ Show more

Learning Objectives

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

Learning Objectives

• Understand the role of models in scientific explanations
• Identify different types of scientific models
• Evaluate how models are used to interpret measurement data+ Show more

Learning Objectives

• Understand the different lines of evidence used to infer evolutionary relationships.
• Identify how fossil, anatomical, and molecular data support evolutionary history.
• Explain the importance of integrating multiple evidence types to reconstruct biodiversity over time.

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 that genes are DNA segments encoding proteins and regulatory elements influencing phenotype.
• Explain the processes of transcription and translation in gene expression.
• Describe how gene regulation affects protein production and phenotypic traits.+ Show more

Learning Objectives

• Explain the process of photosynthesis and its significance in converting solar energy to chemical energy.
• Identify the inputs and outputs involved in photosynthesis.
• Describe the role of pigments and the compartments within chloroplasts during photosynthesis.+ Show more

Learning Objectives

• Describe the components of Milankovitch cycles and their influence on Earth's climate.
• Explain how variations in Earth's orbit affect glacial and interglacial periods.
• Identify the three main orbital parameters involved in Milankovitch cycles and their effects on insolation.+ Show more

Learning Objectives

• Understand how to represent temporally changing systems using time-series descriptions.
• Analyze the behavior of dynamic systems through difference equations and phase diagrams.
• Identify feedback loops, equilibrium states, and transient versus steady-state behavior from data.+ Show more

Learning Objectives

• Identify and distinguish between physical and chemical changes.
• Explain energy transfer in endothermic and exothermic reactions.
• Describe how particle motion and arrangement change during physical and chemical processes.+ Show more

Learning Objectives

• Understand key concepts of environmental chemistry, including mass conservation and chemical change.
• Interpret observable evidence of environmental transformations using particulate and atomic explanations.
• Apply mass accounting principles to regional environmental issues such as acid deposition, tailings chemistry, and nutrient cycling.

Learning Objectives

• Understand the components involved in homeostatic feedback loops.
• Distinguish between negative and positive feedback mechanisms.
• Explain how signaling pathways and transport processes facilitate feedback responses.

Learning Objectives

• Explain the concept of work as energy transfer caused by a force acting through a distance.
• Describe how simple machines alter force, distance, and mechanical advantage in real-world Alberta contexts.
• Analyze the trade-offs between force reduction and distance increase in machine design and performance.

Learning Objectives

• Understand the mechanisms involved in body temperature regulation.
• Identify physiological responses that maintain thermoregulation.
• Explain the roles of skin, vasculature, and nervous pathways in heat balance.+ Show more

Learning Objectives

• Understand the key factors influencing population growth and decline.
• Explain the difference between density-dependent and density-independent factors.
• Describe how population patterns affect community interactions and ecosystem dynamics.+ Show more

Learning Objectives

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

Learning Objectives

• Define and distinguish between resilience and resistance in ecological systems.
• Explain how feedback loops, variability, and connectivity influence ecosystem resilience.
• Identify factors that can trigger regime shifts in ecosystems requiring long-term management strategies.+ Show more

Learning Objectives

• Explain the fundamental principles of the cell theory.
• Differentiate between unicellular and multicellular organisms.
• Identify the differences between prokaryotic and eukaryotic cells.+ Show more

Learning Objectives

• Differentiate between homogeneous and heterogeneous mixtures.
• Describe physical separation methods based on particle properties.
• Identify examples of mixtures and the principles behind their separation.

Learning Objectives

• Describe Earth’s concentric layers and explain how density, temperature, and pressure change with depth.
• Contrast lithosphere and asthenosphere based on their mechanical behavior and ability to flow.
• Explain how seismic waves and gravity data help infer Earth’s internal composition and structure.+ Show more

Learning Objectives

• Understand the concepts of power and efficiency in energy transfer.
• Calculate power in various engineering scenarios.
• Compare real-world efficiency with theoretical models.+ Show more

Learning Objectives

• Understand the basic kinematic equations relating displacement, velocity, acceleration, and time.
• Apply the equations to scenarios involving free-fall and projectile motion.
• Interpret sign conventions and component-wise treatment in uniform acceleration problems.+ Show more

Learning Objectives

• Explain the semi-conservative model of DNA replication and how daughter DNA molecules are formed
• Describe the main roles of helicase, primase, DNA polymerase, and ligase during replication
• Differentiate leading-strand and lagging-strand synthesis, including Okazaki fragments+ Show more

Learning Objectives

• Explain how Earth’s axial tilt and its orbit around the Sun change the angle of sunlight
• Describe how these changes affect day length and solar heating at different latitudes
• Analyze how repeating Earth–Sun motions help determine seasonal timing

Learning Objectives

• Understand the stages and types of ecological succession, including primary and secondary succession.
• Identify key species traits and environmental factors influencing succession trajectories.
• Explain how modeling succession helps predict ecosystem responses to disturbances and environmental change.+ Show more

Learning Objectives

• Understand the main processes involved in biogeochemical cycles such as carbon, nitrogen, and phosphorus.
• Identify the reservoirs and fluxes of key elements within Earth's systems.
• Explain how factors like climate change and land use impact biogeochemical cycle dynamics.+ Show more

Learning Objectives

• Understand the processes involved in nutrient cycling such as nitrogen fixation, assimilation, mineralization, and denitrification.
• Explain how physical transport and human activities influence nutrient availability and cycling rates.
• Assess the impact of excess nutrient loading on aquatic ecosystems, including eutrophication and species composition changes.+ Show more

Learning Objectives

• Understand the concepts of power as energy transfer rate and work per unit time.
• Differentiate between average and instantaneous power and their units.
• Explain mechanical efficiency as useful output energy relative to input energy.+ Show more

Learning Objectives

• Explain the differences between static and kinetic friction and how surface properties affect them.
• Describe the role of fluid drag and how it depends on velocity, surface area, and medium density.
• Apply quantitative relations involving μ coefficients and drag dependencies to real-world motion scenarios.+ Show more

Learning Objectives

• Interpret position–time and velocity–time graphs in various motion scenarios.
• Understand how slopes of graphs relate to physical quantities like velocity and acceleration.
• Calculate displacement from areas under velocity–time graphs.+ Show more

Learning Objectives

• Understand the representation of forces as vectors including magnitude and direction.
• Learn to decompose forces into components and compute resultant forces graphically and analytically.
• Apply vector addition to force interactions in two-dimensional contexts such as inclined planes and angled cables.+ Show more

Learning Objectives

• Distinguish between contact and non-contact forces with examples.
• Identify the magnitude, direction, and point of application in force interactions.
• Understand action-reaction force pairs and their roles in physical interactions.+ Show more

Learning Objectives

• Understand the concept of work as the dot product of force and displacement, including the role of the cosine of the angle between them.
• Calculate work done by constant forces at an angle, including lifting against gravity and pulling objects.
• Compare methods for calculating work when forces vary, including using the area under force–distance curves in common approximations.+ Show more

Learning Objectives

• Identify and describe physical and chemical properties of common rock-forming minerals.
• Understand how mineral properties relate to their formation environment and stability.
• Recognize economic significance of minerals and distinguish ore minerals from gangue.

Learning Objectives

• Understand the relationship between mass and acceleration under a given net force.
• Distinguish between inertial mass and gravitational effects in responses to forces.
• Analyze how changes in mass affect acceleration in practical scenarios.+ Show more

Learning Objectives

• Explain how the cell membrane controls exchange between a cell and its environment
• Identify major organelles and describe how their structures relate to their functions
• Use models to compare cell structures and understand relative sizes and interactions

Learning Objectives

• Explain how membrane-bound organelles specialize to carry out distinct cellular functions in eukaryotic cells.
• Describe the roles of mitochondria, ribosomes, rough endoplasmic reticulum, Golgi apparatus, lysosomes, and peroxisomes in metabolism and transport.
• Connect organelle specialization to efficiency and coordination of energy transfer and macromolecule processing.

Learning Objectives

• Explain how thermoregulation maintains internal temperature within functional limits through coordinated body responses
• Describe the roles of the hypothalamus, skin blood flow, sweating, shivering, and metabolic adjustments in homeostasis
• Analyze how temperature changes affect enzyme activity, membrane stability, and overall cellular function

Learning Objectives

• Understand the key principles of cell theory and its historical development.
• Differentiate between prokaryotic and eukaryotic cells based on their structures.
• Explain the organization of unicellular versus multicellular organisms.+ 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

• Describe the semi-conservative nature of DNA replication.
• Identify the roles of different enzymes involved in DNA replication.
• Explain the importance of replication fidelity and its impact on genome stability.+ Show more

Learning Objectives

• Understand the gravitational interactions among the Moon, Sun, and Earth that cause tidal forces.
• Explain the formation of spring and neap tides based on alignment of celestial bodies.
• Analyze how local coastline features and ocean basins influence tidal amplitudes.+ Show more

Learning Objectives

• Identify major carbon reservoirs and understand the fluxes that move carbon among different Earth systems.
• Quantify the residence times of carbon in atmosphere, biosphere, oceans, and geosphere.
• Describe processes such as photosynthesis, respiration, dissolution, and sedimentation in the carbon cycle.+ Show more