Grade 9 Science Worksheets

Learning Objectives

• Explain genetic drift as a random change in allele frequencies.
• Identify key vocabulary including allele and frequency.
• Describe how small populations and chance events can cause allele loss or fixation.+ Show more

Learning Objectives

• Describe the purpose of biological classification and how it supports communication about biodiversity
• Explain how traditional taxonomic ranks and binomial nomenclature help organize organisms
• Compare traditional classification with modern approaches that use evolutionary relationships and clades+ Show more

Learning Objectives

• Understand the hierarchy and importance of biological classification systems.
• Identify key features used to classify living organisms.
• Differentiate between traditional and modern classification methods.+ Show more

Learning Objectives

• Understand the organization of different tissue types and their roles in organ systems.
• Identify microscopic features of tissues and relate their structure to function.
• Describe how cellular organization supports physiological roles in tissues.+ Show more

Learning Objectives

• Learn about the conservation of matter in chemical reactions.
• Identify elements in unbalanced chemical equations.
• Practice balancing chemical equations by adjusting coefficients.+ Show more

Learning Objectives

• Explain how metric units and precise definitions support consistent measurement in science.
• Describe how instrument resolution and calibration affect measurement reliability and data quality.
• Connect measurement results to tabular and graphical representations to support scientific claims.+ Show more

Learning Objectives

• Describe major carbon reservoirs and the fluxes that move carbon among atmosphere, biosphere, oceans, and geosphere.
• Quantify basic exchanges and residence times of carbon in various reservoirs.
• Explain how human activities perturb natural carbon budgets and the feedback mechanisms involved.+ Show more

Learning Objectives

• Compare how simple machines change input force, output force, and displacement.
• Explain the relationship between mechanical advantage and ideal mechanical advantage.
• Identify key parts and use cases of levers, pulleys, inclined planes, wedges, wheel and axle, and screws.

Learning Objectives

• Calculate work using W = F d cos(θ) for constant forces at an angle to displacement.
• Explain why the work from a variable force can be found from the area under a force–distance graph.
• Choose the correct method for computing work in everyday physics situations.

Learning Objectives

• Understand how multiple bodies and forces interact in mechanical systems.
• Apply Newton’s laws, net force analysis, and energy concepts to predict system motion.
• Analyze energy transfer, dissipative processes, and internal forces in complex systems.+ Show more

Learning Objectives

• Describe physical barriers such as skin and mucosa that protect the body.
• Explain the roles of immune cells like macrophages and lymphocytes in defending against pathogens.
• Understand how inflammation and immune memory contribute to immune response.+ Show more

Learning Objectives

• Explain the hierarchical relationship among cells, tissues, organs, and systems.
• Describe how cell specialization and extracellular matrices contribute to organ functions.
• Analyze how tissue arrangement supports organ-level processes.+ Show more

Learning Objectives

• Identify different types of ecosystem services
• Understand the importance of biodiversity for ecosystem functions
• Recognize human impacts on ecosystem services+ Show more

Learning Objectives

• Understand the mechanisms of renal regulation involved in fluid, electrolyte, and blood pressure homeostasis.
• Identify the roles of hormonal feedback systems such as ADH and the renin-angiotensin-aldosterone system.
• Explain how nephron architecture and membrane specialization facilitate glomerular filtration, reabsorption, and secretion.+ Show more

Learning Objectives

• Understand how optical and electron microscopes produce magnified images.
• Identify the key differences between light and electron microscopy.
• Explain concepts of magnification, resolution, and contrast in microscopy.+ Show more

Learning Objectives

• Explain the principles of hormonal regulation and feedback mechanisms in the endocrine system.
• Describe how hormones are synthesized, transported, and act on target cells.
• Analyze examples of negative and positive feedback in glucose regulation and thyroid function.+ Show more

Learning Objectives

• Explain how diffusion, facilitated diffusion, and osmosis move substances across cell membranes using concentration and water potential gradients
• Describe how active transport uses membrane proteins and ATP to move substances against gradients
• Compare vesicular transport (endocytosis and exocytosis) with transport through membrane proteins+ Show more

Learning Objectives

• Understand the different lines of evidence used to support evolutionary relationships among organisms.
• Identify how fossil records, anatomical comparisons, and molecular data contribute to understanding biodiversity through time.
• Evaluate the strength of evidence derived from different sources and their integration in evolutionary studies.+ Show more

Learning Objectives

• Understand the factors that influence friction and drag forces.
• Identify how surface texture, normal force, and speed affect friction.
• Recognize the impact of air density and shape on aerodynamic drag.+ Show more

Learning Objectives

• Understand the role of centripetal force in maintaining circular motion.
• Identify the factors influencing the acceleration and force in circular paths.
• Connect force components like tension, friction, and normal force to circular motion.+ Show more

Learning Objectives

• Explain how scientific arguments connect evidence to reasoning when evaluating a claim.
• Identify patterns in data and interpret what they imply about a proposed explanation.
• Evaluate how uncertainty and potential bias affect confidence in a scientific claim.

Learning Objectives

• Explain how natural selection works by linking heritable traits, selective pressure, and reproductive success
• Define fitness and describe how adaptive trade-offs affect survival and reproduction
• Compare natural selection with artificial selection and predict how traits can change over generations

Learning Objectives

• Describe processes involved in various types of chemical reactions such as combustion, synthesis, and decomposition.
• Interpret symbolic chemical equations and understand their relation to real-world reactions.
• Explain energy exchange in chemical reactions and relate mass relationships to reaction equations.

Learning Objectives

• Compare physical and chemical changes in terms of energy transfer and system–surroundings interactions.
• Explain how endothermic and exothermic processes relate to temperature changes.
• Use particle-bond ideas to describe what changes during physical vs. chemical processes.

Learning Objectives

• Understand the origin and nature of Earth's magnetic field.
• Identify the regional variation in magnetic declination and its effects.
• Explain how Earth's magnetic properties influence navigation and environmental monitoring.+ Show more

Learning Objectives

• Explain the relationship between net force, mass, and acceleration as described by Newton's second law.
• Differentiate between mass and weight and understand their implications in force and acceleration.
• Apply the principles of Newton's second law to analyze various physical situations such as accelerating carts and collisions.+ Show more

Learning Objectives

• Explain how different organelles work together to maintain cellular functions.
• Describe the pathways of genetic information flow and protein trafficking within a cell.
• Identify the roles of mitochondria, lysosomes, and the Golgi apparatus in cellular processes.+ 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 differences between prokaryotic and eukaryotic cells in terms of size, organization, and genetic structure.
• Identify features unique to bacterial and archaeal cells compared to eukaryotic cells.
• Explain the significance of cell compartmentalization and genetic arrangement in cellular functions.

Learning Objectives

• Understand how long-term temperature patterns relate to climate variability.
• Identify the significance of data such as temperature records, precipitation, and wind in climate studies.
• Analyze how phenomena like El Niño influence regional weather patterns over time.+ Show more

Learning Objectives

• Understand how water moves through Earth's systems
• Identify the processes involved in the water cycle
• Recognize the role of solar energy in driving Earth's processes+ Show more

Learning Objectives

• Explain how the phospholipid bilayer provides selective permeability through hydrophobic and hydrophilic regions.
• Describe the roles of integral and peripheral membrane proteins in transport, signaling, and structural support.
• Connect membrane components (cholesterol and carbohydrate chains) to changes in fluidity and cell recognition.+ Show more

Learning Objectives

• Explain the different types of chemical bonds: ionic, covalent, and metallic.
• Describe how Lewis structures illustrate electron sharing and transfer.
• Relate atomic electron configurations to properties like melting point and conductivity.+ Show more

Learning Objectives

• Understand the basic interactions involved in forces such as push and pull
• Identify contact and non-contact forces in real-world Alberta settings
• Explain how magnitude and direction of forces combine vectorially+ Show more

Learning Objectives

• Describe the formation of ionic, covalent, and metallic bonds.
• Explain how different bond types influence material properties.
• Identify examples of substances with each type of bond.+ Show more

Learning Objectives

• Understand how human activities affect biodiversity and ecosystem services.
• Identify specific human actions that lead to habitat alteration and resource depletion.
• Analyze the ecological consequences of human impacts on ecosystems.+ Show more

Learning Objectives

• Describe the principle of conservation of mechanical energy in systems where non-conservative forces are negligible.
• Explain the interconversion between kinetic and potential energies in various physical scenarios.
• Identify conditions under which total mechanical energy remains constant.+ Show more

Learning Objectives

• Describe the structure of ATP and its role as the primary energy currency within cells.
• Explain how hydrolysis of ATP releases energy for cellular processes.
• Understand the process of ATP regeneration through phosphorylation.+ Show more

Learning Objectives

• Understand the law of conservation of mass during chemical changes.
• Identify how balanced chemical equations reflect mass conservation.
• Explain the significance of mass conservation in stoichiometry and reactions.+ Show more

Learning Objectives

• Understand the importance of balancing chemical equations to reflect atomic conservation.
• Identify coefficients and symbols that accurately represent reactions.
• Learn how to interpret balanced symbolic equations for predicting reaction outcomes.+ Show more

Learning Objectives

• Understand the hormonal feedback mechanisms involved in glucose regulation.
• Identify the roles of insulin and glucagon in maintaining blood glucose levels.
• Describe the processes of glycogen synthesis, glycogenolysis, and gluconeogenesis.+ Show more

Learning Objectives

• Understand what compounds are and how they are composed of fixed ratios of elements.
• Learn to interpret and write chemical formulas for common compounds.
• Distinguish between covalent and ionic bonds and their effects on properties.+ Show more

Learning Objectives

• Understand the three-dimensional arrangements of atoms and ions in different crystal lattices.
• Identify various lattice types such as ionic, metallic, and covalent networks and their properties.
• Explain how unit cells define the smallest repeating pattern in crystals.+ Show more

Learning Objectives

• Understand the basic types of simple machines and their functions.
• Explain how simple machines modify force and displacement to achieve mechanical advantage.
• Identify different classes of levers, pulley systems, inclined planes, wedges, wheels and axles, and screws.+ Show more

Learning Objectives

• Describe the structure and arrangement of atoms or ions in different crystal lattices.
• Explain how unit cells define the smallest repeating pattern in solids.
• Identify lattice types such as ionic, metallic, and covalent networks and their properties.+ Show more

Learning Objectives

• Describe the various mechanisms of enzyme regulation including allosteric control, inhibition, covalent modification, and gene expression.
• Explain how environmental factors such as temperature and pH influence enzyme activity.
• Understand feedback inhibition and its role in maintaining metabolic balance.+ Show more

Learning Objectives

• Understand the symbols and conventions used in pedigree charts.
• Identify inheritance patterns such as autosomal dominant, recessive, X-linked, and mitochondrial.
• Interpret pedigree data to determine likely genotypes and modes of inheritance.+ Show more

Learning Objectives

• Interpret position–time graphs to determine an object's motion and understand what the slope indicates about velocity.
• Explain how the slope of a velocity–time graph relates to acceleration.
• Calculate displacement from the area under a velocity–time graph.+ Show more