Grade 9 Science Worksheets

Learning Objectives

• Understand the principles of metric measurement and instrument resolution.
• Recognize the importance of calibration in achieving reliable data.
• Connect raw measurements to tables and graphs for data analysis.+ Show more

Learning Objectives

• Analyze how resource extraction affects ecosystems, landforms, and material cycles.
• Evaluate criteria for sustainability, including resource renewability and environmental trade-offs.
• Understand the environmental effects of mineral mining, fossil fuel extraction, and water withdrawal.+ Show more

Learning Objectives

• Explain how forces (contact and non-contact) affect motion in everyday Alberta contexts
• Describe how magnitude and direction combine vectorially to determine net force and expected motion
• Use qualitative reasoning about opposing forces to predict motion before numerical calculations

Learning Objectives

• Understand the rates and patterns of surface processes such as weathering, mass wasting, and sediment transport.
• Analyze how climatic, geologic, and topographic factors influence surface modification.
• Evaluate examples of geomorphic change like alluvial fan formation and coastal erosion.+ Show more

Learning Objectives

• Understand different prototyping methods and when to use them.
• Identify appropriate materials, fidelity levels, and testing protocols for various prototypes.
• Analyze measurement metrics and interpret test data to refine prototypes.+ Show more

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.

Learning Objectives

• Explain how enzymes act as biological catalysts and lower activation energy in metabolic reactions.
• Understand the role of enzyme structure and active sites in substrate specificity and catalysis.
• Describe the functions of cofactors and coenzymes in enzyme activity.+ Show more

Learning Objectives

• Understand the purpose of balancing chemical equations to follow conservation of atoms and mass.
• Learn how to symbolize reactants and products in chemical reactions.
• Use simple reactions like combustion of hydrocarbons and formation of water to understand stoichiometry.+ Show more

Learning Objectives

• Understand the construction and interpretation of phylogenetic trees.
• Explain the significance of shared derived characters in evolutionary relationships.
• Compare different methods of tree-building such as parsimony and molecular distance.+ Show more

Learning Objectives

• Explain the key concepts and factors affecting population growth and decline.
• Analyze how density-dependent and density-independent factors influence populations.
• Describe species interactions and their effects on community structure.+ Show more

Learning Objectives

• Understand the principle of conservation of mass in chemical reactions within closed systems.
• Identify examples where mass remains constant despite apparent changes during reactions.
• Differentiate between true mass changes and gas exchange effects in experiments.+ Show more

Learning Objectives

• Explain how the choice of reference frame affects observed velocity and displacement.
• Apply vector addition to relate velocities measured in different frames (e.g., boat, truck, and aircraft scenarios).
• Interpret real-world motion situations using consistent reference-frame language.

Learning Objectives

• Explain conservation of atoms using particle-level rearrangement during chemical reactions.
• Connect conservation of mass in a closed system to evidence from reactants and products.
• Use balanced accounting (atoms and mass) to predict which product quantities are possible.

Learning Objectives

• Understand the characteristics of solids, liquids, and gases.
• Identify the behavior and properties of each state.
• Describe the phase transitions between different states.+ Show more

Learning Objectives

• Understand the flow of energy through different trophic levels in an ecosystem.
• Describe the structure of food webs and the significance of biomass distribution.
• Interpret ecological efficiency and the quantification of energy loss across trophic levels.+ Show more

Learning Objectives

• Understand the tradeoffs involved in digital and analog communication systems.
• Analyze the impact of bandwidth constraints, signal-to-noise ratio, and sampling criteria on transmission quality.
• Evaluate error-correcting techniques and their effect on data integrity in noisy environments.+ Show more

Learning Objectives

• Describe different genetic mechanisms that generate heritable diversity.
• Explain how mutations, chromosomal rearrangements, and recombination affect allelic variation.
• Connect molecular changes to variations in phenotype and their impact on populations.+ Show more

Learning Objectives

• Differentiate genotype and phenotype in Mendelian inheritance
• Predict offspring outcomes using dominant and recessive allele interactions
• Use simple Punnett square logic to estimate genotype and phenotype probabilities

Learning Objectives

• Explain the relationship between kinetic energy and the speed of an object
• Describe how gravitational potential energy depends on height and a chosen reference level
• Interpret energy transfers between potential and kinetic energy in real systems such as roller coasters

Learning Objectives

• Identify and describe the main components of waves: amplitude, frequency, wavelength, and phase.
• Understand the basic behavior of different types of waves including transverse and longitudinal waves.
• Calculate wave speed using the formula: wave speed = frequency × wavelength.+ Show more

Learning Objectives

• Understand the concept of mechanical advantage and how it is calculated.
• Identify different types of machines that utilize mechanical advantage.
• Analyze the trade-offs between force reduction and displacement in pulley and lever systems.+ Show more

Learning Objectives

• Distinguish series and parallel connections in a mixed (combined) circuit
• Predict how voltage and current behave within series vs. parallel branches
• Use circuit reasoning to trace where current can split and where it must remain the same

Learning Objectives

• Explain hierarchical relationships among cells, tissues, organs, and systems using canonical examples.
• Describe how cell specialization and extracellular matrices produce emergent organ functions.
• Understand how tissue arrangement supports organ-level processes and their role in physiological capacity.

Learning Objectives

• Understand the role of solar radiation in Earth's energy balance
• Identify sources of geothermal heat and their effects
• Describe methods of energy transfer: conduction, convection, and radiation+ Show more

Learning Objectives

• Identify the main sources of genetic variation such as mutation, recombination during meiosis, gene flow, and chromosomal rearrangements.
• Explain how mutation rates and types influence genetic diversity.
• Analyze examples of genetic variation in natural and managed populations.+ Show more

Learning Objectives

• Describe the Earth's rotation, revolution, and orbital parameters and how they cause observable cycles like day and night.
• Explain the relative motions of the Moon and Sun and how gravitational interactions lead to tidal phenomena.
• Differentiate between sidereal and solar periods and relate these to Earth's observable celestial cycles.+ Show more

Learning Objectives

• Describe the different phases of the Moon and how they are caused by Earth-Moon-Sun alignment.
• Explain the geometry behind solar and lunar eclipses, including partial, total, and annular types.
• Identify the conditions necessary for eclipses to occur, such as node alignment and orbital inclination.+ Show more

Learning Objectives

• Understand how resource extraction impacts ecosystems and landforms.
• Identify the effects of pollution and material cycle shifts due to resource use.
• Evaluate criteria for sustainability including renewability and environmental effects.+ Show more

Learning Objectives

• Describe diagnostic physical and chemical properties of common rock-forming minerals.
• Explain how mineral composition relates to formation environment and stability under varying temperature and pressure conditions.
• Connect mineral assemblages to petrogenetic histories and economic significance, including distinctions between ore minerals and gangue.

Learning Objectives

• Understand the interconnected processes involved in the rock cycle.
• Identify the different types of rocks and their formation pathways.
• Explain the role of plate tectonics and energy sources in rock transformations.+ Show more

Learning Objectives

• Explain human impacts such as urbanization, deforestation, agriculture, and infrastructure on watershed processes.
• Describe consequences of watershed alterations, including effects on runoff, sediment load, nutrient fluxes, and groundwater recharge.
• Relate changes in watershed activities to channel morphology, flood frequency, and aquatic ecosystem health.+ Show more

Learning Objectives

• Describe Earth's main concentric layers and their properties.
• Explain differences between lithosphere and asthenosphere in mechanical behavior.
• Analyze how density, temperature, and pressure vary with depth inside Earth.+ Show more

Learning Objectives

• Understand how orbital parameters such as eccentricity, axial tilt, and precession influence seasonal insolation and climate variability.
• Explain the gravitational and geometric basis of tidal forcing from the Moon and Sun.
• Analyze resonance effects and tidal locking phenomena in orbital dynamics.+ Show more

Learning Objectives

• Understand the mechanisms of plate tectonics and surface expressions such as boundaries and subduction.
• Explain how lithospheric plate motions produce geological features like volcanism and mountain building.
• Link mantle convection and slab pull to the driving forces of plate movements.+ Show more

Learning Objectives

• Understand the major reservoirs of carbon in Earth's system and the fluxes that transfer carbon between them.
• Quantify basic exchanges and residence times of carbon in atmosphere, biosphere, oceans, and geosphere.
• Explain how human activities influence natural carbon budgets and detail feedback mechanisms such as ocean uptake and terrestrial responses.+ Show more

Learning Objectives

• Describe the components of the hydrologic cycle and how water moves among reservoirs.
• Explain the processes of evaporation, condensation, precipitation, infiltration, runoff, and groundwater flow.
• Analyze the factors affecting water residence time and fluxes in different reservoirs.+ Show more

Learning Objectives

• Understand the various drivers of climate change including greenhouse gases, albedo changes, aerosols, and land-use feedbacks.
• Explain basic radiative transfer concepts and how they influence the Earth's energy budget.
• Assess the impact of human emissions on the carbon cycle and projected climate responses.+ Show more

Learning Objectives

• Understand how greenhouse gases trap outgoing radiation and influence Earth's surface temperature.
• Identify natural and human sources of greenhouse gases.
• Explain the impact of changes in atmospheric composition on climate.+ Show more

Learning Objectives

• Explain the difference between constraints and criteria in engineering design decisions.
• Identify trade-offs among cost, time, materials, safety, and reliability.
• Use criteria weighting and constraint limits to justify a design choice.

Learning Objectives

• Explain how an iteration loop uses test evidence to refine a solution repeatedly until performance improves.
• Describe how changes in design variables (dimensions, materials, alignment, component interaction) are linked to observed outcomes.
• Evaluate reliability and safety margin considerations as prototypes are revised after testing.

Learning Objectives

• Explain how prototypes are used to collect evidence about solution performance.
• Identify measurable criteria for success and link them to observable results.
• Evaluate prototype outcomes by interpreting evidence from tests.

Learning Objectives

• Understand different types of energy conversion devices and processes.
• Identify key examples of energy conversion such as photovoltaic cells, thermoelectric modules, and electrochemical cells.
• Analyze energy efficiency and account for losses during conversion.+ Show more

Learning Objectives

• Explain the principle of electromagnetic induction and how changing magnetic flux induces voltage.
• Identify the relationship between flux change and induced voltage in electrical systems.
• Describe practical applications of electromagnetic induction in regional power systems, such as hydroelectric generators and transformers.+ Show more

Learning Objectives

• Identify different types of evidence supporting common ancestry and diversification in evolution.
• Explain how fossil records, comparative anatomy, and molecular sequences contribute to understanding evolution.
• Evaluate how biogeography and radiometric dating provide context for evolutionary timelines.+ Show more

Learning Objectives

• Describe different methods of encoding information onto carrier waves, including amplitude, frequency, and phase modulation.
• Compare modulation and multiplexing schemes such as pulse-code modulation and amplitude modulation in terms of bandwidth and fidelity.
• Analyze practical examples of encoding techniques used in fiber-optic, radio, and microwave communications.+ Show more

Learning Objectives

• Describe the main pathways of cellular energy metabolism, including glycolysis, the citric acid cycle, and oxidative phosphorylation.
• Explain how mitochondrial structure supports ATP production and energy conversion.
• Differentiate between aerobic and anaerobic energy pathways and their tissue-specific applications.+ Show more

Learning Objectives

• Understand how impulse relates force, contact time, and changes in momentum during collisions.
• Differentiate between elastic and inelastic collisions based on energy conservation and energy transfer.
• Analyze force-time profiles to evaluate collision outcomes and predict changes in velocity.+ Show more

Learning Objectives

• Describe the principal tissue classes: epithelial, connective, muscle, and nervous.
• Explain the cellular composition and extracellular matrix properties of each tissue type.
• Identify specialized epithelia for absorption and secretion and relate tissue architecture to organ functions.+ Show more