Grade 9 Worksheets

Learning Objectives

• Explain Newton’s Third Law using action–reaction pairs between two interacting objects.
• Distinguish between forces that act on different objects and why they do not cancel on a single object.
• Apply third-law reasoning to real-world examples such as rockets, walking, and pushing against walls.

Learning Objectives

• Identify common reaction types and their typical products
• Apply knowledge of reactant properties to predict reaction outcomes
• Understand how conservation of mass influences product formation+ Show more

Learning Objectives

• Explain how innate and adaptive immune responses support homeostasis during infection and injury
• Describe how immune cells coordinate inflammation, clearance of damaged cells, and tissue repair
• Connect immune signaling with circulatory and endocrine system roles in maintaining internal stability+ Show more

Learning Objectives

• Understand the concept of natural selection and how it influences adaptation in populations.
• Identify examples of selective pressure and adaptive trade-offs in Alberta ecosystems.
• Differentiate between natural selection and artificial selection in shaping species traits.+ Show more

Learning Objectives

• Explain the structure of ATP and how its components relate to storing usable cellular energy.
• Describe how ATP hydrolysis releases energy and how that energy powers cellular work.
• Compare ATP regeneration by phosphorylation with ATP breakdown, focusing on energy transfer.+ Show more

Learning Objectives

• Explain how device parts work together as interacting components within defined boundaries.
• Map inputs, outputs, energy transfers, and material flow to predict device behavior.
• Evaluate how constraints and component compatibility affect reliability.

Learning Objectives

• Understand how air pollution impacts human health.
• Identify common air pollutants and their sources.
• Analyze the biological effects of pollutants on cellular processes.+ Show more

Learning Objectives

• Explain key ethical concerns related to genetic technologies, including privacy, consent, and fair access to benefits.
• Analyze trade-offs between scientific innovation and potential harms in real-world contexts such as crops, veterinary care, and biobanking.
• Evaluate how policy and public dialogue can support responsible decision-making across different stakeholder groups.

Learning Objectives

• Define and identify kinetic energy in various objects
• Define and identify potential energy, including gravitational potential energy
• Describe the relationship between work and energy transfer+ Show more

Learning Objectives

• Explain how tectonic plates move and describe key drivers of plate motion
• Differentiate convergent, divergent, and transform plate boundaries using evidence like earthquakes and landforms
• Interpret patterns of seismic activity by relating them to plate boundaries and plate motions

Learning Objectives

• Explain how comparing long-term weather measurements reveals climate variability.
• Differentiate variability from persistent climate change using evidence from temperature, precipitation, and atmospheric patterns.
• Interpret how large-scale ocean-atmosphere interactions (such as El Niño) affect regional weather statistics.

Learning Objectives

• Understand the ecological, economic, and health risks and benefits associated with genetic technologies.
• Evaluate potential consequences such as gene flow, resistance development, and market impacts.
• Analyze therapeutic opportunities and the importance of risk assessment and mitigation strategies.+ Show more

Learning Objectives

• Use balanced chemical equations and molar mass to convert between mass, moles, and particle counts.
• Identify the limiting reactant and determine expected product amounts from stoichiometric ratios.
• Apply conservation of mass to check that total reactant mass equals total product mass in ideal conditions.

Learning Objectives

• Understand how collision frequency, activation energy, and reaction pathways influence reaction rate.
• Explain how temperature, concentration, and catalysts modify energy distributions and reaction speeds.
• Describe rate laws and reaction order with quantitative examples such as bromine-iodide kinetics.+ Show more

Learning Objectives

• Understand the processes of mitosis and meiosis
• Identify the roles of cell division in growth, repair, and reproduction
• Learn the stages and functions of chromosome pairing, segregation, and errors+ Show more

Learning Objectives

• Identify different types of friction
• Understand the basic properties of static and kinetic friction
• Explain how surface properties and normal force influence friction+ Show more

Learning Objectives

• Understand how to interpret displacement–time, velocity–time, and acceleration–time graphs.
• Learn how to determine physical quantities such as speed, acceleration, and displacement from graphs.
• Recognize the significance of slope and area under the curve in motion graphs.+ Show more

Learning Objectives

• Explain how storage reservoirs and time scales affect Earth-system changes in carbon and water.
• Describe how exchange rates between reservoirs (atmosphere, oceans, living systems, rocks) influence carbon levels.
• Analyze how energy flow can drive evaporation, winds, temperature, and feedbacks that reinforce or dampen change.

Learning Objectives

• Explain how interval estimates, likelihood statements, and effect sizes communicate quantitative uncertainty in scientific claims.
• Interpret graphs and visualizations that show variability, and connect them to the uncertainty in the underlying data.
• Report numerical results with appropriate limits of extrapolation and clear assumptions.+ Show more

Learning Objectives

• Explain particle conservation using the idea that atoms are not created, destroyed, or lost during chemical reactions.
• Use particulate (atom-level) reasoning to describe how reactants transform into products.
• Identify evidence for conservation of matter from balanced counts of elements before and after a reaction.

Learning Objectives

• Understand how Earth's energy budget influences climate variations.
• Identify key factors such as solar flux, albedo, greenhouse gases, and ocean heat transport.
• Analyze how these factors contribute to phenomena like ice-sheet changes, El Niño, and monsoon shifts.+ Show more

Learning Objectives

• Identify how audience and purpose influence tone and word choice in oral communication.
• Evaluate statements about language adaptation for clarity, respect, and effectiveness.
• Select appropriate vocabulary and formality for different speaking contexts.+ Show more

Learning Objectives

• Explain how greenhouse gas forcing, albedo changes, aerosol effects, and land-use feedbacks influence Earth’s energy balance
• Use basic radiative transfer and energy-budget ideas to describe the climate system’s warming and equilibrium behavior
• Connect human emissions to carbon-cycle perturbations and projected climate responses+ Show more

Learning Objectives

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

Learning Objectives

• Describe the processes of transcription and translation.
• Identify the roles of DNA, mRNA, tRNA, and ribosomes in gene expression.
• Explain how regulation affects gene expression timing and outcomes.

Learning Objectives

• Explain why impact evaluation is necessary when science and technology affect society and the natural world.
• Identify key impact categories (environmental effects, health outcomes, resource use, and unintended consequences).
• Use evidence-based criteria to compare options and justify tradeoff decisions over time.

Learning Objectives

• Compare prokaryotic and eukaryotic cell structure, including key organelles and chromosomes
• Explain how cell architecture affects cell size, complexity, and possible metabolic roles
• Apply knowledge of cell type differences to classify features and evaluate statements

Learning Objectives

• Describe the mechanisms of molecular signaling pathways and how they regulate gene expression and protein activity.
• Explain how intercellular communication affects cellular functions and systemic physiological outcomes.
• Analyze the effects of mutations and pharmacological inhibition on molecular pathways and organism health.+ Show more

Learning Objectives

• Understand the physical barriers of the immune system such as skin and mucous membranes.
• Identify cellular mediators involved in immune defense including macrophages and lymphocytes.
• Describe how antigen recognition and antibody responses protect the body.+ Show more

Learning Objectives

• Explain how intermolecular forces (London dispersion, dipole–dipole, and hydrogen bonding) depend on molecular polarity and structure.
• Predict how intermolecular force strength affects boiling point, melting/transition temperatures, viscosity, and surface tension.
• Use molecular size and functional group information to describe trends in homologous series and compare mixtures.

Learning Objectives

• Understand how cells communicate through chemical and electrical messages.
• Identify key components such as receptor proteins, ligands, and signal transduction pathways.
• Differentiate between autocrine, paracrine, endocrine, and synaptic signaling.+ Show more

Learning Objectives

• Define physical properties as observable or measurable characteristics that do not change a material’s chemical identity
• Describe and compare common physical properties such as density, melting point, boiling point, color, hardness, and conductivity
• Distinguish intensive properties from extensive properties and explain why that matters for comparing samples+ Show more

Learning Objectives

• Explain how microscope images can be transformed into diagrammatic and physical models to show cell structure and scale.
• Identify how magnification and resolution affect what can be seen and how models should be labeled.
• Use evidence from microscopy to form testable functional hypotheses about cell processes.

Learning Objectives

• Explain the roles of models, explanations, and theories in organizing scientific evidence.
• Distinguish between a model and a scientific theory using appropriate examples.
• Describe how new evidence can lead to revisions in scientific theories.

Learning Objectives

• Understand the principles of electromagnetic induction and how changing magnetic flux induces voltage.
• Explain the relationship between flux change, induced voltage, and current direction.
• Identify practical applications of electromagnetic induction in power systems, such as transformers and generators.+ Show more

Learning Objectives

• Identify components of the water cycle and their roles.
• Understand how surface and subsurface water flows are quantified.
• Relate precipitation, evapotranspiration, and water withdrawals to streamflow.+ Show more

Learning Objectives

• Explain how new oceanic crust forms at mid-ocean ridges during seafloor spreading.
• Interpret magnetic striping patterns and relate them to magnetic reversals and ridge symmetry.
• Describe how seafloor age and bathymetry help reconstruct ocean basin formation and plate motion.

Learning Objectives

• Understand how urbanization and deforestation influence watershed processes
• Identify environmental consequences of human modifications to watersheds
• Evaluate measurement indicators used to assess watershed health+ Show more

Learning Objectives

• Identify basic components of the immune system and their functions
• Understand the difference between innate and adaptive immunity
• Explain how the immune system interacts with other body systems

Learning Objectives

• Explain how nuclear fusion inside stars produces new elements
• Describe how explosive stellar events disperse elements into space
• Connect stellar life cycles to the chemical inventory needed for planet formation+ Show more

Learning Objectives

• Understand how atmospheric and hydrologic forces influence geomorphic change.
• Identify and describe physical and chemical weathering processes.
• Explain the role of mass wasting and sediment transport in shaping landforms.+ Show more

Learning Objectives

• Understand the interactions among geosphere, hydrosphere, atmosphere, and biosphere.
• Describe material and energy exchanges between Earth's spheres.
• Use conceptual models and diagrams to explain coupled environmental phenomena.+ Show more

Learning Objectives

• Explain how prototypes are used to collect evidence about solution performance.
• Connect observable test results to criteria for success when evaluating a design.
• Use prototype evidence to justify whether a design should be refined, redesigned, or replaced.

Learning Objectives

• Understand the concept of tectonic plates and their movement.
• Identify the different types of plate boundaries and their features.
• Explain how plate movements cause geological events such as earthquakes and volcanoes.+ Show more

Learning Objectives

• Identify different types of membrane transport mechanisms
• Describe simple diffusion, facilitated diffusion, osmosis, and active transport
• Relate electrochemical gradients to membrane transport efficacy+ Show more

Learning Objectives

• Explain how energy flows one direction through food chains and why some energy is lost at each trophic level
• Describe how matter cycles through organisms and the environment through processes such as photosynthesis and cellular respiration
• Interpret models and evidence (trophic levels, biomass changes, and atom rearrangement) to compare energy transfer and matter cycling

Learning Objectives

• Differentiate elements, compounds, and mixtures using macroscopic and compositional criteria
• Identify homogeneous versus heterogeneous mixtures based on appearance and uniformity
• Use chemical symbols and formulas to represent elements and compounds

Learning Objectives

• Understand the composition of organs in the human body, especially the heart.
• Identify the different tissue types that make up organs.
• Explain how tissues work together within an organ to support its function.+ Show more