Grade 9 Science Worksheets

Learning Objectives

• Explain how the structure of epithelial, connective, muscle, and nervous tissues supports their functions in organs.
• Compare how cells, junctions, and extracellular matrix influence permeability, strength, and signaling speed.
• Use tissue-structure vocabulary to answer questions about transport, force generation, and communication.

Learning Objectives

• Identify key physical properties (crystal structure, hardness, cleavage, lustre, streak, and specific gravity) used to diagnose rock-forming minerals.
• Explain how chemical properties and mineral composition relate to formation environment and stability under changing temperature and pressure.
• Distinguish ore minerals from gangue and describe how mineral assemblages connect to petrogenetic (rock-forming) history and economic deposits.

Learning Objectives

• Explain the concept of power as the rate of energy transfer or work per unit time, including average and instantaneous formulations.
• Define mechanical efficiency and understand how it relates useful output energy to input energy, considering energy losses due to friction and heat.
• Compare power ratings of different motors and evaluate the trade-offs involved in mechanical advantage in machines using quantitative tools.

Learning Objectives

• Define mechanical advantage as a ratio that compares load force to input force and/or input distance to load distance
• Calculate and interpret mechanical advantage for simple lever situations and pulley-based systems
• Explain how increased mechanical advantage often changes displacement and trade-offs in force and distance

Learning Objectives

• Identify signs of chemical change such as color shifts, gas evolution, precipitate formation, temperature change, and irreversibility.
• Recognize real-world examples of chemical changes in environmental and industrial contexts.
• Understand how observable markers indicate the formation of new substances in chemical reactions.

Learning Objectives

• Explain inertia as an object's resistance to changes in motion
• Relate inertia to mass and describe how net force affects acceleration
• Use everyday examples to predict how objects respond when forces start or stop

Learning Objectives

• Identify different types of species interactions
• Understand the roles of keystone species and ecosystem engineers
• Analyze how species interactions influence community structure+ Show more

Learning Objectives

• Understand how friction and drag oppose motion and convert mechanical energy into heat.
• Identify factors affecting friction on icy roads and gravel tracks.
• Describe how air density and shape influence aerodynamic drag on vehicles and structures.+ Show more

Learning Objectives

• Explain how element symbols represent elements and how their capitalization affects meaning.
• Interpret chemical formulas using subscripts to determine relative numbers of atoms.
• Convert between written descriptions and formulas for common substances.

Learning Objectives

• Explain how greenhouse gases, albedo changes, aerosols, and land-use can influence Earth’s energy balance through radiative forcing.
• Describe the relationship between radiative transfer, energy budget imbalance, and changes in surface temperature.
• Connect human emissions to carbon-cycle perturbations and to projected climate responses.+ Show more

Learning Objectives

• Explain how mineral mining, fossil fuel extraction, and water withdrawal can alter landforms, habitats, and material cycles.
• Analyze how pollution and erosion can transport contaminants through ecosystems.
• Evaluate sustainability using criteria such as resource renewability, cumulative environmental effects, and reclamation trade-offs.

Learning Objectives

• Understand the differences between sexual and asexual reproduction.
• Identify examples of reproductive strategies in Alberta species.
• Compare the ecological trade-offs of different reproductive methods.+ Show more

Learning Objectives

• Describe how particle arrangement affects bulk properties of solids
• Compare ionic lattices and molecular solids using observable properties
• Explain conductivity changes when ionic solids become molten+ Show more

Learning Objectives

• Differentiate homogeneous and heterogeneous mixtures using particle-level explanations.
• Identify physical properties (particle size, solubility, boiling point, density, and magnetism) that allow separation.
• Explain how separation methods (filtration, distillation, magnetic separation, and decanting) preserve the chemical identity of components.

Learning Objectives

• Explain how greenhouse gases affect Earth’s energy balance using the idea of trapped outgoing longwave radiation.
• Describe how natural and human sources change greenhouse gas concentrations and radiative forcing.
• Analyze how long-lived greenhouse gases influence climate responses over time.

Learning Objectives

• Identify protons, neutrons, and electrons in atoms
• Describe the structure of an atom
• Understand electron configurations and energy levels+ Show more

Learning Objectives

• Explain the conservation of mass principle and how it relates to atoms being conserved in chemical reactions
• Use particle reasoning to account for mass changes (or no net change) in sealed systems
• Interpret mass and gas-evolution measurements using balanced chemical ideas and matter accounting

Learning Objectives

• Understand the basic concepts of cell theory
• Identify main cell structures and their functions
• Differentiate between unicellular and multicellular organisms+ Show more

Learning Objectives

• Understand how to quantify random and systematic uncertainty using statistical descriptors.
• Learn to interpret standard deviation, standard error, and confidence intervals in data analysis.
• Apply basic error propagation methods to combined measurements and calculations.+ Show more

Learning Objectives

• Describe the different types of chemical bonds and their atomic interactions.
• Identify properties associated with ionic, covalent, and metallic bonding.
• Understand how bonding influences the properties of materials like sodium chloride and metals.+ Show more

Learning Objectives

• Define and explain the concept of inertia and its relation to mass.
• Describe real-world examples of inertia in everyday life.
• Understand how forces are required to change an object's state of motion due to inertia.+ Show more

Learning Objectives

• Understand the processes involved in nutrient cycling such as nitrogen fixation, assimilation, mineralization, and denitrification.
• Identify how physical transport and human activities influence nutrient availability in ecosystems.
• Explain the impacts of excess nutrient loading leading to eutrophication and ecosystem changes.+ Show more

Learning Objectives

• Explain Newton’s second law using the relationship between net force, inertial mass, and acceleration.
• Use vector reasoning to determine how direction of net force sets the direction of acceleration.
• Differentiate mass and weight and apply correct SI units consistently in calculations.+ Show more

Learning Objectives

• Distinguish P waves, S waves, and surface waves and describe how each propagates through Earth.
• Use travel-time concepts (especially S–P time) to explain how epicentres and earthquake magnitudes can be estimated.
• Connect focal mechanisms to fault types and stress orientations, relating rupture characteristics to seismic energy and hazard.+ Show more

Learning Objectives

• Explain how heat transfer occurs due to temperature differences and identify common real-world examples
• Describe work as energy transferred by forces acting over distance and relate it to everyday situations
• Use an energy-transfer perspective to account for changes in a system and its surroundings during physical and chemical processes

Learning Objectives

• Understand the construction and critique of scientific arguments using claim-evidence-reasoning structures.
• Identify coherence, relevance, and how alternative explanations are considered in scientific reasoning.
• Explain how quantitative evidence and model comparisons strengthen arguments.+ Show more

Learning Objectives

• Identify the components of ATP molecule
• Understand how ATP stores and releases energy
• Explain the process of ATP regeneration through phosphorylation

Learning Objectives

• Compare sexual and asexual reproduction in terms of genetic variation and offspring similarity
• Identify common mechanisms of asexual reproduction (budding, binary fission, vegetative cloning) and where they occur
• Analyze ecological trade-offs between population growth rate and genetic diversity

Learning Objectives

• Identify key components involved in gene regulation
• Understand how transcription factors, promoters, enhancers, silencers, and repressors influence gene expression
• Describe epigenetic modifications and their effects on chromatin accessibility+ Show more

Learning Objectives

• Explain how energy moves through ecosystems from producers to consumers and decomposers.
• Describe the role of photosynthesis in converting light energy into chemical energy.
• Use the idea of energy loss as heat to interpret energy pyramids and food-chain length.

Learning Objectives

• Identify common sources of systematic and random errors in scientific studies.
• Describe methods to detect and quantify error sources such as bias, confounding, and model mis-specification.
• Explain how error contributes to uncertainty and affects interpretation of results.+ Show more

Learning Objectives

• Understand the particulate model of matter
• Identify differences in particle arrangement in solids, liquids, and gases
• Explain how particle behavior explains macroscopic phenomena

Learning Objectives

• Understand the structure and function of cell organelles.
• Identify key components of a cell and their roles.
• Explain how cell structure relates to its function.+ Show more

Learning Objectives

• Explain Newton’s First Law using the idea of inertia and net external force
• Distinguish between rest and constant velocity states and relate each to balanced forces
• Use examples involving friction and low-friction surfaces to predict whether motion changes

Learning Objectives

• Understand how models are used to represent and explain scientific phenomena.
• Evaluate evidence from measurements and models to judge scientific claims.
• Compare different explanations based on how well they match data and assumptions.+ Show more

Learning Objectives

• Explain how forces interact within complex mechanical systems to influence motion.
• Apply Newton's laws to analyze forces and predict outcomes in multi-body systems.
• Evaluate energy transfer, dissipation, and system behavior during collisions and linked mechanisms.+ Show more

Learning Objectives

• Understand the fundamental principles of the cell theory.
• Differentiate between prokaryotic and eukaryotic cells.
• Describe the organization of unicellular and multicellular organisms.+ Show more

Learning Objectives

• Identify and describe the six basic types of simple machines.
• Explain how simple machines transfer force and reduce effort.
• Distinguish between ideal and actual mechanical advantage, considering friction and support geometry.+ Show more

Learning Objectives

• Distinguish between speed, velocity, and acceleration and describe what each quantity measures
• Apply sign conventions to interpret motion direction in one-dimensional kinematics problems
• Use unit conversions and algebraic relationships to compare motion quantities

Learning Objectives

• Understand the concept of action–reaction force pairs and their application to different objects.
• Identify forces involved in propulsion, gravitational attraction, and collisions.
• Distinguish between internal and external forces within a system.+ Show more

Learning Objectives

• Identify the characteristics and functions of epithelial tissues
• Describe the microscopic features of epithelial cells
• Understand how tissue structure supports organ functions

Learning Objectives

• Identify and describe physical barriers that protect the body against pathogens.
• Explain the role of skin and mucous membranes in immune defense.
• Understand the importance of barrier functions in preventing disease.+ Show more

Learning Objectives

• Describe how different electrical components behave under applied voltage and current, including linear and nonlinear effects.
• Explain how temperature changes affect component resistance and how this impacts real equipment performance.
• Connect component behaviors to power ratings and safe operating limits in circuits.

Learning Objectives

• Define homeostasis and explain its importance in maintaining internal stability.
• Identify the main body systems involved in homeostasis.
• Describe how feedback mechanisms help regulate internal conditions.+ Show more

Learning Objectives

• Explain how work depends on force and distance using the physics definition.
• Describe how simple machines change the magnitude or direction of an applied force.
• Evaluate input–output trade-offs and mechanical advantage in real contexts.

Learning Objectives

• Understand how mole relationships connect masses of reactants and products in balanced equations.
• Learn to convert between mass and amount of substance using molar mass.
• Apply mole ratios from coefficients to predict quantities of reactants and products.+ Show more

Learning Objectives

• Explain how energy transfer efficiency affects biomass across trophic levels.
• Use evidence such as population size, biomass trends, and nutrient concentrations to interpret trophic transfers.
• Describe how decomposition returns matter to ecosystems and supports continued production.

Learning Objectives

• Understand the concept of biogeochemical cycles and their importance.
• Identify the main components and processes involved in the carbon cycle.
• Describe how carbon moves between different Earth system reservoirs.+ Show more