Grade 9 Worksheets

Learning Objectives

• Explain what optimization and tradeoffs mean in engineering and scientific design
• Identify criteria and constraints when comparing multiple design alternatives
• Use models and evidence to justify which design is “best” under given goals+ Show more

Learning Objectives

• Understand how to construct and interpret phylogenetic trees using morphological and molecular data.
• Identify shared derived characters and their significance in evolutionary relationships.
• Explain different tree-building methods such as parsimony and molecular distance.+ Show more

Learning Objectives

• Understand the key factors influencing Earth's climate and regional weather patterns.
• Analyze how surface-atmosphere interactions affect short-term variability and long-term climate trends.
• Interpret data from observational records, radiative transfer calculations, and paleoclimate proxies related to climate drivers.

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

• Explain how nutrient needs change across developmental stages and activity levels.
• Identify the roles of macro- and micronutrients in growth, immune function, and overall health.
• Evaluate food choices by considering nutrient content and appropriate portion sizes.

Learning Objectives

• Explain how molecular and cellular processes can scale up to affect organ function.
• Construct a multi-level cause-and-effect account linking genetic variation to disease outcomes.
• Interpret relationships among biochemical, histology, and organ-function data in an integrated physiology context.

Learning Objectives

• Interpret multiple lines of evidence (fossils, comparative anatomy, biogeography, and molecular data) for descent with modification.
• Explain how natural selection, genetic drift, gene flow, and mutation can change allele frequencies over short and long timescales.
• Use evidence-based reasoning to evaluate real-world scenarios such as antibiotic resistance and adaptation to changing environments.

Learning Objectives

• Explain how industrialization and economic change reshaped social structures in Canadian communities.
• Analyze how literacy and education needs influenced everyday life during periods of industrial growth.
• Evaluate how reform movements and shifting gender roles affected community relationships.+ 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

• Interpret molecular and phenotypic information to analyze genetic inheritance patterns.
• Apply techniques such as genotype and phenotype frequency analysis, PCR, SNPs, and sequencing to identify genetic variants.
• Compare observed data with expected inheritance ratios or family patterns to detect linkage, heterozygosity, or selection.+ 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 flow of energy through different trophic levels in ecosystems.
• Analyze the structure and organization of food webs and food chains.
• Calculate and interpret biomass pyramids and ecological efficiencies.+ 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

• Understand the components of argument structures in scientific reasoning.
• Identify different argument types and their characteristics.
• Analyze examples of argument patterns used in scientific explanations.+ 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

• Explain the processes of seafloor spreading, subduction zones, and volcanic arc systems.
• Describe how mantle convection connects to surface features like mountain belts and ocean basins.
• Identify evidence such as seafloor magnetic anomalies and geologic cross-sections that support plate tectonics.+ Show more

Learning Objectives

• Interpret evidence from ice cores, tree rings, marine sediments, and speleothems using proxy indicators.
• Relate proxy records to past climate variability and events such as glacial-interglacial cycles and abrupt shifts.
• Apply age models and quantify uncertainties to link proxy signals to climate forcing mechanisms.+ 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 the environmental impacts of coal energy production.
• Analyze trade-offs involved in different resource extraction methods.
• Recognize sustainable practices in resource management.+ 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 Newton's three laws of motion and their implications
• Analyze forces acting on objects using free-body diagrams
• Apply vector components to resolve forces and predict motion+ Show more

Learning Objectives

• Understand the principles of impulse and force-time tradeoffs in collision mitigation
• Describe the roles of crumple zones, airbags, helmets, and padding in collision safety
• Analyze force-time graphs to evaluate energy absorption strategies+ Show more

Learning Objectives

• Understand the principle of conservation of linear momentum in isolated systems.
• Differentiate between elastic and inelastic collisions using momentum vectors.
• Learn how to mathematically calculate total momentum before and after collisions.+ 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

• Understand the tradition and significance of New Year resolutions.
• Reflect on personal achievements and set goals for the upcoming year.
• Explore the historical origins and psychological aspects of goal-setting.+ Show more

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

• 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

• Understand the key surface processes that shape the Earth's landscape.
• Analyze how climate, relief, and lithology influence surface modification.
• Describe the role of weathering, mass wasting, and sediment transport in geomorphology.+ Show more

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

• Understand and identify the slope and y-intercept of a linear function from graphs, tables, and equations.
• Apply linear functions to solve real-world problems involving distance, finance, and measurement.
• Interpret the rate of change and initial value in different contextual scenarios.+ 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

• Understand the basic concepts of carbon and nitrogen cycles
• Identify the roles of organisms and abiotic factors in material cycling
• Explain how energy flows through ecosystems+ Show more

Learning Objectives

• Understand key concepts related to Science
• Apply knowledge through practice questions
• Demonstrate comprehension of the material

Learning Objectives

• Identify the structure and function of mitochondria
• Explain how mitochondria produce energy in cells
• Understand the significance of mitochondrial structure in energy synthesis+ Show more

Learning Objectives

• Understand the basic concepts of cellular energy production.
• Identify the roles of ATP in cellular processes.
• Compare photosynthetic and respiratory electron transport chains.

Learning Objectives

• Understand the basic principles of genes and inheritance
• Learn how chromosomes behave during meiosis to pass traits
• Recognize Mendelian patterns and deviations such as incomplete dominance and codominance+ Show more

Learning Objectives

• Understand key concepts related to Science
• Apply knowledge through practice questions
• Demonstrate comprehension of the material

Learning Objectives

• Understand the molecular structure of DNA and its role in inheritance.
• Describe the process of genetic transmission through meiosis and gamete formation.
• Identify observable inheritance phenomena such as karyotype patterns and transmission ratios.+ Show more

Learning Objectives

• Interpret earthquake waveforms, travel-time curves, and epicenter maps to understand Earth's subsurface structures.
• Compare P- and S-wave arrivals, waveform amplitudes, and frequency content to distinguish shallow versus deep earthquakes.
• Locate rupture zones and relate seismic activity patterns to tectonic plate interactions.+ Show more

Learning Objectives

• Describe the mechanisms linking oceanic and atmospheric variability in climate systems.
• Explain phenomena such as ENSO and how sea surface temperature anomalies influence global weather patterns.
• Analyze time-series data, lag-correlation maps, and energy-budget perspectives related to ocean–atmosphere interactions.+ Show more

Learning Objectives

• Explain the processes of coastal erosion, sediment transport, and shoreline response to various natural forces.
• Analyze how sea-level change influences coastal morphology and habitats.
• Evaluate quantitative indicators such as shoreline retreat rates and beach volume changes.+ Show more

Learning Objectives

• Understand the components and interactions within coupled environmental models.
• Identify key parameters and sensitivities in integrated models.
• Evaluate how uncertainties propagate through complex environmental scenarios.+ Show more

Learning Objectives

• Explain the mechanisms behind the three main types of plate boundaries: divergent, convergent, and transform.
• Identify surface expressions and characteristic features associated with each boundary type.
• Analyze geologic evidence such as seafloor age patterns, paleomagnetic stripes, and earthquake distribution to interpret plate movements.+ Show more

Learning Objectives

• Describe the processes involved in the transformation of igneous, sedimentary, and metamorphic rocks.
• Explain the physical and chemical mechanisms driving changes in rock types within various tectonic settings.
• Connect petrologic evidence and diagrams to the understanding of landscape evolution and resource distribution.+ Show more