Grade 9 Science Worksheets

Learning Objectives

• Understand how reproductive strategies influence genetic diversity and adaptation.
• Trace inheritance patterns of traits through chromosomes and Mendelian laws.
• Analyze the ecological and societal impacts of technological choices in agriculture and breeding.+ Show more

Learning Objectives

• Understand how mechanical systems transfer energy through work, collisions, and friction.
• Explain the transformation of energy from kinetic and potential forms to thermal energy.
• Analyze real-world examples like braking a bicycle or compressing a spring to describe energy conversion pathways.+ Show more

Learning Objectives

• Understand the process of light reactions in photosynthesis
• Identify the roles of pigments, electron transport, and ATP synthase in light-driven energy conversion
• Explain how water splitting replenishes electrons and releases oxygen during photosynthesis+ Show more

Learning Objectives

• Explain the mechanisms driving surface and deep ocean currents and their roles in climate regulation.
• Identify features such as gyres, upwelling zones, and boundary currents and describe their effects on regional environments.
• Describe how changes in ocean circulation patterns can influence climate systems and weather extremes.+ Show more

Learning Objectives

• Understand the structural differences between prokaryotic and eukaryotic cells.
• Identify key components found in each cell type and their functions.
• Explain how cell structure relates to biological roles and evolution.

Learning Objectives

• Understand the structure and function of the plasma membrane in cells.
• Differentiate between passive and active transport processes across cell membranes.
• Identify types of membrane proteins involved in transport and communication.+ Show more

Learning Objectives

• Understand the concept of chemical change and how it differs from physical change.
• Identify observable indicators of chemical reactions such as temperature change, gas production, precipitate formation, and color change.
• Interpret the microscopic processes involved in chemical reactions and distinguish them from physical rearrangements.+ Show more

Learning Objectives

• Understand the concept of center of mass and how it affects rotational stability of rigid bodies.
• Apply torque and equilibrium conditions to analyze stability in structures and objects.
• Calculate the location of the center of mass for composite systems and determine tipping thresholds.+ Show more

Learning Objectives

• Describe the processes involved in the rock cycle, including melting, crystallization, erosion, sedimentation, and metamorphism.
• Identify different types of rocks and their formation pathways in the rock cycle.
• Explain the conditions such as pressure, temperature, and time that influence rock transformation.+ Show more

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 basic definition of a force and how it affects objects.
• Identify different types of forces, including contact and non-contact forces.
• Recognize real-world examples of forces in Alberta settings.+ Show more

Learning Objectives

• Describe the steps and purpose of the Calvin cycle in photosynthesis.
• Explain the role of enzymes such as ribulose bisphosphate carboxylase in carbon fixation.
• Identify the energy carriers ATP and NADPH and their roles in the cycle.+ Show more

Learning Objectives

• Explain how atoms are conserved during chemical reactions by using particle-level reasoning.
• Describe why total mass is conserved in a closed system.
• Predict possible product quantities from reactant quantities using conservation laws.+ Show more

Learning Objectives

• Describe the structure of an atom, including protons, neutrons, and electrons.
• Explain how the number of protons determines the element identity.
• Understand the concept of isotopes and their effect on atomic mass and stability.+ Show more

Learning Objectives

• Analyze different cellular energy pathways, including ATP production and their roles in metabolism.
• Compare the functions of photosynthetic and respiratory electron transport chains in energy transfer.
• Understand how resource availability and compartmentation limit pathway fluxes and influence metabolic efficiency.+ Show more

Learning Objectives

• Explain how reflection, refraction, transmission, and absorption affect wave direction, wavelength, and amplitude at boundaries between media
• Use wave models to describe how diffraction and interference change wave patterns near openings and where multiple sources overlap
• Connect observed changes in wave behavior to differences in wave speed across media

Learning Objectives

• Distinguish contact forces from non-contact forces using real examples.
• Describe forces qualitatively by identifying magnitude, direction, and point of application.
• Represent interactions between objects and identify action–reaction pairs.

Learning Objectives

• Understand the symbolic representation of reactants and products in chemical equations.
• Explain the importance of balancing chemical equations to reflect conservation of atoms and mass.
• Identify examples of chemical reactions such as combustion and water formation to demonstrate stoichiometry.+ 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 relationship between force, mass, and acceleration
• Interpret vector quantities of force and acceleration
• Analyze net force by summing components+ Show more

Learning Objectives

• Understand the factors influencing data transmission quality, including bandwidth, signal-to-noise ratio, and error correction.
• Evaluate how different transmission modes and technologies balance tradeoffs for reliable communication.
• Analyze case studies of bandwidth limitations and capacity constraints in various communication systems.+ Show more

Learning Objectives

• Identify specialized organelles in various cell types
• Understand how organelle structure relates to cell function
• Explore differences in organelle abundance across tissues+ Show more

Learning Objectives

• Understand how fossils contribute to the evidence for evolution
• Identify the role of anatomical comparisons in evolutionary studies
• Recognize how molecular data is used to assess relatedness among organisms+ Show more

Learning Objectives

• Understand Newton's three laws of motion and their implications.
• Analyze free-body diagrams to identify forces acting on objects.
• Apply vector decomposition to solve problems involving forces and acceleration.+ Show more

Learning Objectives

• Understand the key processes and indicators used to assess natural hazards.
• Analyze spatial patterns and triggering mechanisms of various natural hazard events.
• Evaluate the impacts of natural hazards on human systems and ecological landscapes.+ Show more

Learning Objectives

• Define adaptive radiation and explain its significance in evolution.
• Identify key features and processes involved in adaptive radiation.
• Analyze examples of adaptive radiation in nature.

Learning Objectives

• Understand the role of DNA, RNA, and proteins in evolutionary studies.
• Learn how sequence similarities and divergences inform common ancestry.
• Explore how molecular clocks estimate divergence times between species.

Learning Objectives

• Understand the molecular structure of DNA and its role in inheritance.
• Explain how chromosomes and DNA facilitate the transmission of hereditary information across generations.
• Identify key processes such as DNA replication, chromosomal segregation during meiosis, and zygote formation.+ Show more

Learning Objectives

• Understand the principle of action–reaction force pairs in Newton's third law.
• Identify examples of force pairs in various physical interactions.
• Distinguish between internal and external forces within multibody systems.+ Show more

Learning Objectives

• Explain the process of electron transport chains in mitochondria and chloroplasts.
• Identify the role of proton gradients and chemiosmosis in ATP synthesis.
• Differentiate between mitochondrial and thylakoid electron transport systems.+ Show more

Learning Objectives

• Explain the concept of force and how it can change an object's motion.
• Identify and describe contact forces such as friction and normal force.
• Describe non-contact forces like gravity and their effects in real-world scenarios.+ Show more

Learning Objectives

• Understand how DNA, RNA, and protein sequences are used to infer evolutionary relationships.
• Identify the significance of homologous genes and conserved sequences in common ancestry.
• Explain the concept of molecular clocks and how sequence divergence estimates divergence times.+ 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 the basic principles of how electric motors and generators operate.
• Identify different types of motors and their applications.
• Match performance characteristics of electromagnetic devices to load requirements.+ Show more

Learning Objectives

• Understand the flow of energy across trophic levels in ecosystems.
• Distinguish between biomass distribution and energy transfer in food webs.
• Identify the concepts of ecological efficiency and trophic pyramids.+ Show more

Learning Objectives

• Understand how land-use change, invasive species, pollution, and resource extraction affect biodiversity and ecosystems.
• Interpret empirical data from case studies like deforestation, coral reef degradation, and agricultural runoff.
• Evaluate approaches for mitigating environmental impacts to support ecosystem resilience.+ Show more

Learning Objectives

• Understand the key factors that regulate population sizes, including carrying capacity, competition, predation, and resource availability.
• Analyze how mathematical models like logistic growth and predator-prey cycles describe population dynamics.
• Evaluate human impacts on populations and their ecosystems, including effects on resilience and community composition.+ Show more

Learning Objectives

• Understand the processes involved in nutrient cycling within ecosystems, including microbial decomposition, fixation, mineralization, and sedimentation.
• Analyze human impacts such as fertilizer runoff and their effects on eutrophication and nutrient fluxes.
• Describe how changes in cycling rates influence ecosystem productivity, nutrient availability, and soil carbon storage.+ Show more

Learning Objectives

• Understand the concept of Milankovitch cycles and their significance in Earth's climate.
• Describe the three main orbital parameters: eccentricity, axial tilt, and precession.
• Analyze how astronomical variations influence glacial and interglacial periods.+ Show more

Learning Objectives

• Understand the definition of net force and how it affects motion.
• Learn to resolve forces into components and calculate net force.
• Apply the concept of net force to predict acceleration and equilibrium.+ Show more

Learning Objectives

• Understand how chemical reactions involve changes in potential and kinetic energy, classifying processes as endothermic or exothermic.
• Describe how energy diagrams illustrate molecular interactions and observable temperature or phase changes during chemical transformations.
• Calculate and interpret enthalpy changes in reactions such as combustion to determine energy release or absorption.+ Show more

Learning Objectives

• Understand the key principles of population genetics, including allele frequency and Hardy-Weinberg equilibrium.
• Identify the effects of genetic drift, bottlenecks, and founder effects on genetic diversity.
• Explain how gene flow, selection, and stochastic processes influence evolutionary trajectories.+ Show more

Learning Objectives

• Define electric current, voltage, and resistance as fundamental electrical quantities.
• Describe the units, symbols, and typical magnitudes of electrical quantities.
• Interpret instrument readings and understand their significance in regional electrical systems.+ Show more

Learning Objectives

• Understand the concept of work as an energy transfer involving force and displacement.
• Identify when work is positive or negative based on direction of force and displacement.
• Explain how work relates to changes in kinetic and potential energy.+ Show more

Learning Objectives

• Understand major genetic technologies used in biotechnology.
• Identify applications of biotechnology in agriculture and livestock.
• Describe mechanisms of trait introduction and modification at molecular and population levels.+ Show more

Learning Objectives

• Understand the functional roles of different eukaryotic cell organelles.
• Identify how organelle specialization supports cellular efficiency and metabolic coordination.
• Describe the processes carried out by mitochondria, ribosomes, endoplasmic reticulum, Golgi apparatus, lysosomes, and peroxisomes.+ Show more

Learning Objectives

• Understand how individual electrical components exhibit characteristic behaviors such as resistance and conduction.
• Identify real-world examples of component behaviors like filament heating and thermistor operation.
• Analyze how component curves, power ratings, and operating limits influence circuit stability and energy efficiency.+ Show more

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