Grade 9 Science Worksheets

Learning Objectives

• Understand the hormonal feedback mechanisms involved in glucose regulation
• Describe how insulin and glucagon maintain blood glucose levels within a set range
• Explain the roles of pancreatic beta and alpha cells in energy homeostasis+ Show more

Learning Objectives

• Understand the principles of information encoding through modulation and multiplexing.
• Differentiate between amplitude, frequency, and phase variation techniques used in signal transmission.
• Compare pulse-code modulation and analog amplitude modulation in terms of bandwidth, fidelity, and noise susceptibility.+ Show more

Learning Objectives

• Interpret multiple lines of evidence supporting common descent, including fossil sequences and molecular data.
• Explain mechanisms like natural selection, genetic drift, gene flow, and mutation that alter allele frequencies and drive adaptation.
• Apply models linking environmental pressures to expected population responses, such as antibiotic resistance development.+ Show more

Learning Objectives

• Understand how phylogenetic trees represent evolutionary relationships.
• Interpret branch arrangements and shared traits in cladograms.
• Learn methods of constructing phylogenetic trees using morphological and molecular data.+ Show more

Learning Objectives

• Describe various mechanisms of membrane transport including passive and active processes.
• Differentiate between diffusion, facilitated diffusion, osmosis, and active transport.
• Explain the role of vesicular transport in cellular processes such as endocytosis and exocytosis.+ Show more

Learning Objectives

• Explain what electron configuration shows about the distribution of electrons in energy levels and orbitals
• Use valence electrons to predict common ion charges and typical bonding patterns
• Describe how shell filling order relates to periodic trends in atomic size and ionization energy+ Show more

Learning Objectives

• Explain the mechanisms of inheritance and link chromosomal behavior during meiosis to Mendelian patterns.
• Identify deviations such as incomplete dominance, codominance, and linkage, and interpret their effects on inheritance.
• Use pedigree reasoning, Punnett squares, and probability calculations to predict genotypic and phenotypic ratios.+ Show more

Learning Objectives

• Explain the process of solar system formation from a protoplanetary disk.
• Identify key evidence supporting planetary formation theories, such as meteorite composition and radiometric dating.
• Describe the differences between inner rocky planets and outer gas giants.+ Show more

Learning Objectives

• Understand different types of graphs and tables used in data representation
• Interpret data from bar graphs and line graphs effectively
• Identify key features of graphs such as trends, outliers, and patterns+ Show more

Learning Objectives

• Explain how work quantifies energy transfer through force and distance.
• Describe how simple machines modify force and distance to improve work efficiency.
• Identify real-world examples of levers, pulleys, and inclined ramps in Alberta contexts.+ Show more

Learning Objectives

• Draw a correct free body diagram by identifying all external forces acting on a single object
• Resolve forces into components and determine the net force and direction of acceleration
• Use Newton’s second law (net force = mass × acceleration) to predict motion qualitatively and quantitatively

Learning Objectives

• Identify the key functions of various eukaryotic cell organelles.
• Understand how organelle specialization contributes to cellular efficiency.
• Recognize the importance of compartmentalization in cell processes.+ Show more

Learning Objectives

• Identify and explain the concepts of mean, median, and mode in biological data.
• Understand when to use each measure based on data distribution.
• Analyze biological datasets for skewness, outliers, and multimodality.+ Show more

Learning Objectives

• Identify different types of seismic waves from waveform data
• Interpret travel-time curves and epicenter maps to infer subsurface structures
• Compare P- and S-wave arrivals to determine earthquake depth+ Show more

Learning Objectives

• Understand the structure of DNA and how it forms the double helix.
• Identify the organization of chromosomes within cells.
• Differentiate between nuclear and organelle genomes.+ Show more

Learning Objectives

• Understand the hierarchical levels used in biological classification systems.
• Distinguish between traditional and modern classification approaches based on evolutionary relationships.
• Identify key traits used to classify living organisms, including morphological, developmental, and genetic data.+ Show more

Learning Objectives

• Describe the processes involved in the cycling of carbon, nitrogen, and phosphorus within ecosystems.
• Explain microbial roles such as fixation, mineralization, and decomposition in nutrient cycles.
• Analyze human impacts like fertilizer runoff on nutrient fluxes and ecosystem health.+ Show more

Learning Objectives

• Explain the process and features of various chemical reactions.
• Interpret chemical formulas and symbolic equations to understand reactions.
• Describe energy changes associated with bonds breaking and forming.+ Show more

Learning Objectives

• Explain the role of the kidneys and nephron in blood filtration and urine formation.
• Describe the processes of glomerular filtration, reabsorption, secretion, and urine concentration.
• Understand how renal regulation maintains electrolyte balance, acid–base homeostasis, and blood pressure.+ Show more

Learning Objectives

• Explain how frequency, wavelength, and amplitude describe different aspects of a wave
• Use the relationship between wave speed, frequency, and wavelength to interpret changes in wave patterns
• Interpret how amplitude affects the strength and energy associated with a wave signal+ Show more

Learning Objectives

• Understand the concept of albedo and how surface reflectivity affects climate.
• Identify the various feedback mechanisms related to surface reflectivity changes.
• Analyze the role of ice, snow, vegetation, and clouds in albedo feedback processes.+ Show more

Learning Objectives

• Explain how an electric motor converts electrical energy into mechanical work using electromagnetic effects.
• Describe how a generator produces electrical energy through electromagnetic induction.
• Match motor and generator performance characteristics to real-world load needs in local systems.

Learning Objectives

• Understand how temperature, pressure, concentration, and catalysts influence chemical reactions.
• Apply principles of equilibrium and kinetics to optimize reaction conditions.
• Use quantitative tools like equilibrium constants and reaction-rate expressions to predict product distribution.+ Show more

Learning Objectives

• Explain how monitoring data can reveal changes in air and water quality over time
• Describe how monitoring evidence (chemical indicators, flow conditions, and spatial patterns) links pollution to sources and processes
• Use measurement results to evaluate pollution mitigation and prevention strategies+ Show more

Learning Objectives

• Understand the mechanisms of chemical and physical weathering
• Identify different types of erosion and their effects on landscapes
• Analyze how climate, relief, and lithology influence surface processes+ Show more

Learning Objectives

• Understand the structure and function of the cardiovascular system.
• Explain the mechanisms of blood flow, valve functions, and capillary exchange.
• Describe how blood components contribute to transport capacity and regulation.+ Show more

Learning Objectives

• Understand the characteristic behaviors of various electrical components such as resistance, diode conduction, and temperature dependence.
• Identify real-world examples of component behaviors in electrical circuits and systems.
• Analyze how component curves, power ratings, and operating limits influence circuit stability, energy efficiency, and device longevity.+ Show more

Learning Objectives

• Interpret earthquake waveforms and travel-time curves to infer subsurface structures.
• Compare P- and S-wave arrivals, waveform amplitudes, and frequency content to distinguish earthquake depths and locations.
• Connect seismic activity patterns to tectonic environments and surface hazard phenomena such as tsunamis.+ Show more

Learning Objectives

• Differentiate between scientific models, explanations, and theories
• Explain how models and theories are supported by evidence and used to make predictions
• Describe why scientific theories can change when new evidence conflicts with existing ideas

Learning Objectives

• Define inertia and explain its relation to an object's mass.
• Describe real-world examples of inertia in everyday life.
• Analyze how forces overcome inertia to change an object's motion.+ Show more

Learning Objectives

• Explain the difference between kinetic energy and potential energy using everyday examples.
• Describe how kinetic energy depends on an object's speed and how gravitational potential energy depends on height.
• Use energy-transfer ideas to predict what happens to speed and height in a system such as a roller coaster.

Learning Objectives

• Explain how forces can change an object’s state of motion and relate forces to acceleration and changes in velocity.
• Differentiate contact forces from field forces and identify examples of each.
• Use vector ideas (magnitude and direction) to describe forces and predict what happens when multiple forces act.

Learning Objectives

• Explain how work done by a net force over a distance changes an object's kinetic energy
• Determine whether work is positive or negative based on the direction of the net force relative to motion
• Describe how constant-speed lifting transfers energy into stored gravitational potential energy

Learning Objectives

• Understand the diverse phenomena involved in complex inheritance such as polygenic traits, epistasis, and pleiotropy.
• Explain how variable penetrance and expressivity influence phenotype variation.
• Describe how linkage and environmental factors modify inheritance patterns.+ Show more

Learning Objectives

• Understand the geometric relationship between the Sun, Earth, and Moon during different lunar phases.
• Identify the sequence and appearance of lunar phases over a synodic month.
• Explain how lunar phases influence nocturnal illumination and tidal patterns.+ Show more

Learning Objectives

• Evaluate biotechnology decisions by weighing benefits, risks, and long-term societal impacts.
• Analyze ethical issues related to genetic privacy, informed consent, and equitable access to therapies.
• Explain how ecological and health risks (including unintended genome edits) influence ethical and regulatory choices.+ Show more

Learning Objectives

• Explain what albedo feedback is and how it impacts the climate.
• Identify different surfaces that affect Earth's reflectivity.
• Analyze how changes in surface reflectivity can accelerate or slow down climate change.+ Show more

Learning Objectives

• Differentiate physical changes from chemical changes using evidence about new substances.
• Explain how phase and form can change while conserving the identity of the material.
• Identify common examples of reversible physical changes in everyday and engineered contexts.

Learning Objectives

• Understand the basic principles of molecular geometry and electron pair repulsion.
• Identify common molecular shapes such as linear, trigonal planar, tetrahedral, and bent.
• Explain how molecular shape influences polarity and physical properties.+ Show more

Learning Objectives

• Identify different types of species interactions such as competition, predation, mutualism, parasitism, and herbivory.
• Understand the roles of keystone species and ecosystem engineers.
• Explore how indirect effects influence community structure and ecosystem stability.

Learning Objectives

• Understand the principles of integrated environmental models
• Interpret the structure and variables of coupled models
• Recognize the role of parameter sensitivity and uncertainty in modeling+ Show more

Learning Objectives

• Understand the relationship between particle arrangement and bulk material properties in different lattice structures.
• Distinguish between ionic lattices, covalent networks, and molecular solids based on physical and electrical characteristics.
• Describe how melting point, electrical conductivity, hardness, and solubility are affected by lattice organization and interparticle forces.+ Show more

Learning Objectives

• Describe the structural features of the heart and blood vessels involved in circulation.
• Explain the mechanisms of blood flow, including valve function and pressure regulation.
• Identify the roles of blood components in transport and regulation within the circulatory system.+ Show more

Learning Objectives

• Describe the components and architecture of power distribution systems.
• Explain the process of voltage transformation and its importance in electrical grids.
• Analyze how system topology influences reliability and capacity in power networks.+ Show more

Learning Objectives

• Explain how land-use change, invasive species, pollution, and resource extraction impact biodiversity and ecosystems.
• Interpret empirical data from case studies to evaluate environmental impacts and mitigation strategies.
• Identify trade-offs among conservation efforts and socioecological outcomes.+ Show more

Learning Objectives

• Explain how time-series descriptions help analyze changing systems.
• Identify the role of feedback loops and equilibrium in dynamic models.
• Analyze empirical data to determine transient versus steady-state behavior.+ Show more

Learning Objectives

• Explain the concept of the rock cycle and the processes involved in transforming rocks between igneous, sedimentary, and metamorphic forms.
• Identify the geological conditions and processes such as melting, crystallization, erosion, and metamorphism that lead to the formation of different rock types.
• Analyze how rates, pressure-temperature conditions, and radiometric dating constrain the sequencing of material cycling in Earth's crust.

Learning Objectives

• Explain how molecular, cellular, and organ-level interactions produce emergent physiological properties.
• Analyze how genetic variations can lead to system dysfunction in conditions such as cystic fibrosis, heart failure, and metabolic syndrome.
• Interpret data from biochemical assays, histology, and organ function metrics to assess organismal health and disease pathways.+ Show more