Grade 9 Science Worksheets

Learning Objectives

• Describe the interactions among organisms and abiotic components that drive material cycling in ecosystems.
• Explain the processes of carbon and nitrogen cycles and their significance in ecosystem function.
• Analyze how perturbations like nutrient enrichment, habitat alteration, and invasive species affect community structure and ecosystem dynamics.+ Show more

Learning Objectives

• Understand how allele frequencies change under different evolutionary forces such as selection, drift, migration, and mutation.
• Explain the Hardy-Weinberg equilibrium as a null model in population genetics.
• Describe the concepts of fitness landscapes, selection coefficients, and effective population size.+ Show more

Learning Objectives

• Identify basic mechanisms of molecular signaling
• Understand the role of receptor-ligand interactions
• Describe signal transduction cascades+ Show more

Learning Objectives

• Understand the benefits and risks associated with different energy sources
• Evaluate environmental impacts of renewable energy options
• Analyze tradeoffs involved in energy generation choices+ Show more

Learning Objectives

• Understand the concept of molar ratios in balanced chemical equations
• Apply mass and mole relationships to calculate reactant and product quantities
• Determine limiting reagents and calculate theoretical yields in chemical reactions+ Show more

Learning Objectives

• Understand water-budget frameworks and how they quantify surface and subsurface water flows.
• Analyze streamflow variability and groundwater levels in relation to precipitation, evapotranspiration, and human withdrawals.
• Evaluate geomorphic responses like channel adjustment and sediment yield to altered hydrologic fluxes.+ Show more

Learning Objectives

• Understand the processes involved in energy system transitions and decarbonization.
• Analyze the environmental impact of different energy sources through lifecycle assessment.
• Evaluate technology options for energy storage, carbon capture, and renewable integration.+ Show more

Learning Objectives

• Differentiate between heat and temperature.
• Explain basic mechanisms of heat transfer: conduction, convection, radiation.
• Perform calculations involving specific heat capacity, mass, and temperature change.+ Show more

Learning Objectives

• Identify major cell organelles and their functions
• Explain how cell structures contribute to cellular activities
• Recognize the importance of membranes, organelles, and cytoskeleton in cell health

Learning Objectives

• Understand the principles of allele frequency and genetic variation in populations.
• Explain the assumptions of Hardy-Weinberg equilibrium and factors disrupting it.
• Describe the effects of genetic drift, bottlenecks, and founder effects on genetic diversity.+ 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

• Understand energy transfer across trophic levels in ecosystems.
• Identify the structure and function of food webs and trophic pyramids.
• Explain ecological efficiency and biomass distribution in different ecosystems.+ Show more

Learning Objectives

• Analyze how land-use change, invasive species, pollution, and resource extraction impact biodiversity and ecosystems.
• Interpret empirical data from case studies such as deforestation, coral reef degradation, and agricultural runoff.
• Evaluate trade-offs among conservation efforts, provisioning services, and socioecological outcomes.+ Show more

Learning Objectives

• Understand the roles of producers and consumers in ecosystems.
• Analyze how photosynthesis and cellular respiration transfer energy and cycle carbon and oxygen.
• Evaluate the impact of net primary productivity and biomass accumulation in autotrophs.+ Show more

Learning Objectives

• Describe the processes involved in nutrient cycling, including microbial decomposition, fixation, mineralization, and sedimentation.
• Explain how human activities such as fertilizer runoff impact nutrient fluxes and ecosystem health.
• Analyze mass-balance considerations and how alterations in cycling rates affect ecosystems.+ Show more

Learning Objectives

• Understand the factors that influence population size and dynamics.
• Explore models such as logistic growth and predator-prey cycles.
• Analyze empirical data from fisheries and wildlife management.+ Show more

Learning Objectives

• Describe the main processes involved in the rock cycle, including melting, crystallization, erosion, deposition, sedimentation, and metamorphism.
• Identify examples of rocks formed through various cycle pathways, such as basalt from partial melting and sandstone from sediment deposition.
• Explain how pressure, temperature, and radiometric age data constrain the temporal sequence of rock transformations.+ Show more

Learning Objectives

• Identify the main idea of a passage about biotechnology applications.
• Describe key details about common biotech tools and their uses.
• Explain at least one ethical or societal consideration linked to biotech.

Learning Objectives

• Understand how to interpret coefficients in balanced chemical equations to determine reaction proportions.
• Apply mass conservation principles to real-world chemical scenarios involving reactants and products.
• Calculate predicted masses of products formed or reactants consumed based on given quantities and coefficients.+ Show more

Learning Objectives

• Explain how climate models represent Earth’s energy balance and atmospheric circulation.
• Describe how greenhouse gas scenarios influence temperature and precipitation projections.
• Evaluate the role of feedbacks and uncertainty when interpreting model results.

Learning Objectives

• Describe different mechanisms of asexual reproduction such as binary fission, budding, spore formation, and vegetative propagation.
• Explain the ecological and genetic consequences of producing clones through asexual strategies.
• Identify Alberta-specific examples of asexual reproduction like aspen groves, bacteria in soil, and horticultural practices.+ Show more

Learning Objectives

• Define work as the scalar product of force and displacement and understand its units.
• Distinguish between kinetic and potential energy and their calculation methods.
• Explain energy transfer mechanisms in mechanical systems, such as lifting and acceleration.+ Show more

Learning Objectives

• Identify the major organelles and understand their specific functions in the cell.
• Explain how organelles like mitochondria and chloroplasts contribute to energy production.
• Compare the structures of various organelles and relate them to their roles.+ Show more

Learning Objectives

• Describe the differences between sexual and asexual reproduction.
• Identify mechanisms of asexual reproduction such as budding, binary fission, and vegetative cloning.
• Explain examples of reproductive strategies in Alberta species, including trembling aspen, dandelions, and elk.+ Show more

Learning Objectives

• Understand the concept of chemical equilibrium and its role in chemical reactions.
• Identify factors that influence the position and rate of equilibrium.
• Analyze how temperature, pressure, concentration, and catalysts affect reaction outcomes.+ Show more

Learning Objectives

• Understand the concept of motion in a plane using vector components
• Explain the principles of projectile trajectories and how they relate to real-world phenomena
• Translate between component equations and resultant motion in two dimensions+ Show more

Learning Objectives

• Identify major carbon reservoirs in the atmosphere, biosphere, oceans, and geosphere.
• Explain fluxes such as photosynthesis, respiration, dissolution, sedimentation, and fossil fuel formation.
• Quantify basic carbon exchange rates and residence times in different reservoirs.+ Show more

Learning Objectives

• Understand the conventions for representing forces in free-body diagrams.
• Identify and label different forces acting on isolated objects in various scenarios.
• Learn how to analyze net force and conditions for equilibrium or acceleration using free-body diagrams.+ Show more

Learning Objectives

• Explain the basic mechanisms of natural selection and how it contributes to evolution.
• Identify examples of natural selection in nature, such as beak variation in finches and antibiotic resistance in bacteria.
• Describe different types of selection: directional, stabilizing, and disruptive.+ 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

• Analyze the societal benefits, risks, and ethical implications of biotechnology.
• Understand regulatory frameworks and public engagement in biotech decision-making.
• Evaluate long-term environmental, health, and social impacts of genetic technologies.+ Show more

Learning Objectives

• Understand how Earth's climate is influenced by various natural and external factors.
• Identify the roles of atmosphere, hydrosphere, cryosphere, lithosphere, and biosphere in climate systems.
• Explain the concept of energy balance and its significance in climate regulation.+ Show more

Learning Objectives

• Explain the greenhouse effect and its role in Earth's climate system.
• Identify key gases involved in the greenhouse effect.
• Describe how natural and human activities influence greenhouse gas concentrations.+ Show more

Learning Objectives

• Explain the principles governing orbital motion, including Kepler's laws and Newton's law of gravitation.
• Calculate relationships between orbital period, semi-major axis, and escape velocity.
• Describe the effects of orbital resonance and perturbations on satellite and planetary stability.+ Show more

Learning Objectives

• Understand how land-use change, invasive species, pollution, and resource extraction impact biodiversity and ecosystems.
• Interpret empirical data from case studies like deforestation and coral reef degradation to evaluate ecological consequences.
• Assess trade-offs among conservation efforts, provisioning services, and socioecological outcomes.+ Show more

Learning Objectives

• Understand the concept of homeostasis and its importance in maintaining internal body conditions.
• Identify the key body systems involved in homeostasis and their roles.
• Describe feedback mechanisms that help regulate internal environments.+ Show more

Learning Objectives

• Understand the different types of chemical bonds: ionic, covalent, and metallic.
• Describe how Lewis structures represent electron sharing and transfer.
• Explain how bonding affects properties like melting point, conductivity, and solubility.+ Show more

Learning Objectives

• Interpret paleoclimate evidence from ice cores, tree rings, marine sediments, and speleothems using proxy indicators.
• Relate proxy records to past climate variability including glacial-interglacial cycles and abrupt events.
• Employ age models and quantify uncertainties to link proxy signals to climate forcing mechanisms.+ Show more

Learning Objectives

• Understand the fundamental principles of optical and electron microscopy.
• Identify differences between magnification, resolution, and contrast in microscopes.
• Explain how image interpretation depends on scale bars, staining, and sample preparation.+ Show more

Learning Objectives

• Identify the main stages of cellular respiration: glycolysis, the Krebs cycle, and electron transport chain.
• Describe how ATP is produced in each pathway.
• Differentiate between aerobic and anaerobic respiration outcomes.+ Show more

Learning Objectives

• Describe the process of ATP production during cellular respiration and photosynthesis.
• Explain how catabolic and anabolic reactions are coupled in energy transfer.
• Compare the roles of electron transport chains in photosynthesis and cellular respiration.+ Show more

Learning Objectives

• Explain the overall process of photosynthesis and its main inputs and outputs.
• Identify the roles of pigments and chloroplasts in light energy capture.
• Describe the two main stages of photosynthesis: light-dependent and light-independent reactions.+ Show more

Learning Objectives

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

Learning Objectives

• Understand the use of element symbols and chemical formulas to represent elements and compounds.
• Identify and interpret common chemical formulas such as H2O, NaCl, and CaCO3.
• Explain how formulas indicate the proportions of elements in a substance.+ Show more

Learning Objectives

• Describe the functions of key organelles in eukaryotic cells.
• Explain how organelle specialization contributes to cellular efficiency.
• Identify the structures involved in energy transfer and macromolecule processing.+ Show more

Learning Objectives

• Understand the process of kidney osmoregulation and its role in maintaining water and ion balance.
• Identify the functions of filtration, reabsorption, secretion, and concentration in nephrons.
• Explain how hormones like antidiuretic hormone (ADH) and aldosterone regulate fluid and electrolyte balance.+ Show more

Learning Objectives

• Identify the four major tissue types and their functions.
• Explain how tissue structure relates to its function in organs.
• Differentiate between epithelial, connective, muscle, and nervous tissues.+ Show more

Learning Objectives

• Understand the structural differences between prokaryotic and eukaryotic cells.
• Identify key components unique to each cell type.
• Explain how cell structure relates to function and organism complexity.+ Show more