Grade 9 Science Worksheets

Learning Objectives

• Identify and describe the main components of waves: amplitude, frequency, wavelength, and phase.
• Understand the basic behavior of different types of waves including transverse and longitudinal waves.
• Calculate wave speed using the formula: wave speed = frequency × wavelength.+ Show more

Learning Objectives

• Understand the different mechanisms of enzyme regulation including allosteric control, inhibition, covalent modification, and gene expression.
• Identify how environmental factors like temperature and pH influence enzyme activity.
• Explain the role of feedback inhibition in metabolic pathways.+ Show more

Learning Objectives

• Identify and describe the main types of chemical reactions: synthesis, decomposition, single displacement, double displacement, and combustion.
• Recognize practical examples of each reaction type and their observable outcomes.
• Understand how reaction classifications assist in predicting products and maintaining mass conservation.+ Show more

Learning Objectives

• Explain how Earth’s climate is shaped by interactions among the atmosphere, hydrosphere, cryosphere, lithosphere, and biosphere.
• Describe how solar energy and internal heat create an energy balance that influences long-term climate averages.
• Identify how external forcings and natural variability (aerosols, greenhouse gases, ocean circulation, and land surface properties) affect temperature, precipitation, and extremes.

Learning Objectives

• Explain how surface currents and deeper thermohaline circulation redistribute heat in the ocean.
• Describe how features like gyres and upwelling influence coastal conditions and carbon uptake.
• Evaluate how changes in ocean circulation can affect regional climates and extreme weather through feedbacks.

Learning Objectives

• Understand how Newton's laws relate net force, mass, and acceleration in motion.
• Analyze free-body diagrams and force components to predict motion.
• Apply proportional relationships between net force and acceleration for constant mass systems.+ Show more

Learning Objectives

• Understand the concept of chemical equilibrium and how it influences reaction outcomes.
• Identify factors that affect the equilibrium position, such as temperature, pressure, and concentration.
• Explain the role of catalysts in reaction rates without shifting equilibrium.+ Show more

Learning Objectives

• Define ecosystem services and identify their types.
• Understand how biodiversity supports ecosystem functions.
• Recognize human activities that impact ecosystem services.+ Show more

Learning Objectives

• Understand the concept of tectonic plates and their role in Earth's surface.
• Identify the types of plate boundaries and their associated landforms and phenomena.
• Explain the forces that cause plate movements such as mantle convection, slab pull, and ridge push.+ Show more

Learning Objectives

• Understand the functions and importance of different organelles in eukaryotic cells.
• Identify the specific roles of mitochondria, ribosomes, endoplasmic reticulum, Golgi apparatus, lysosomes, and peroxisomes.
• Explain how organelle specialization supports cellular efficiency and coordination of metabolic pathways.+ Show more

Learning Objectives

• Explain how waves transfer energy and, in some cases, information without transporting matter overall
• Relate frequency, wavelength, and amplitude to observable wave behavior
• Use wave properties to predict how changes affect wave patterns and energy carried

Learning Objectives

• Understand the key safety standards and codes related to electrical installations.
• Identify the purpose of grounding, overcurrent protection, and insulation in electrical safety.
• Interpret labels and markings on electrical devices to ensure compliance with safety regulations.+ Show more

Learning Objectives

• Explain how electric motors convert electrical energy into mechanical work using electromagnetic forces.
• Describe how generators use electromagnetic induction to convert mechanical work into electrical energy.
• Match motor/generator performance characteristics (voltage, current, torque, speed, flux) to typical load requirements.

Learning Objectives

• Understand the basic concepts of electromagnetic induction
• Identify how changing magnetic flux induces voltage
• Recognize practical applications such as generators and transformers

Learning Objectives

• Understand how resistors exhibit linear behavior in circuits
• Identify the characteristics of nonlinear components like diodes
• Describe how temperature affects the performance of electrical components+ Show more

Learning Objectives

• Understand common energy loss mechanisms in electrical systems
• Identify techniques to reduce resistive and thermal losses
• Analyze the impact of system design choices on energy efficiency+ Show more

Learning Objectives

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

Learning Objectives

• Explain the concept of centripetal force and its role in circular motion.
• Understand how speed and radius affect centripetal acceleration.
• Identify forces such as tension, friction, and normal force that maintain curved trajectories.+ Show more

Learning Objectives

• Understand the relationship between net force, mass, and acceleration as described by Newton's second law.
• Analyze how direction affects force and acceleration vectors.
• Apply the concept of net force to predict changes in an object's motion.+ Show more

Learning Objectives

• Understand the purpose and components of free body diagrams.
• Learn how to sketch and interpret vectors for forces acting on objects.
• Calculate net force and analyze how forces contribute to motion.+ Show more

Learning Objectives

• Understand the concept of inertia and how it relates to an object's mass.
• Explain real-world examples of inertia to demonstrate understanding.
• Analyze how forces overcome inertia to change an object's motion.+ Show more

Learning Objectives

• Compare and contrast sexual and asexual reproduction strategies.
• Identify examples of reproductive strategies in Alberta species.
• Understand ecological trade-offs between genetic diversity and population growth.+ Show more

Learning Objectives

• Explain what a physical change is and how it differs from a chemical change
• Identify examples of physical changes in everyday and engineered processes
• Use particle/identity reasoning to describe how matter can change phase or form without forming new substances

Learning Objectives

• Understand the different types of particle arrangements in solids, including ionic and covalent lattices.
• Explain how the structure of molecules and lattices influences properties such as melting point, electrical conductivity, and solubility.
• Describe the distinctions between ionic solids and molecular solids based on their organization and electrical forces.+ Show more

Learning Objectives

• Explain how forces affect an object’s motion by changing acceleration and/or velocity
• Differentiate contact forces from field forces and give examples of each
• Use vector ideas (magnitude and direction) to describe forces and combine multiple forces conceptually

Learning Objectives

• Use residuals and diagnostic graphical patterns to judge whether a model matches empirical data.
• Apply goodness-of-fit ideas to decide when a model is acceptable versus when it should be revised.
• Explain how heteroscedasticity and missing-variable clues motivate alternate hypotheses.

Learning Objectives

• Understand the structure of evidence-based reasoning in science.
• Identify different types of evidence and their roles in supporting claims.
• Analyze how multiple representations strengthen inference chains.+ Show more

Learning Objectives

• Explain how a chemical change forms new substances with different properties and composition.
• Identify observable evidence of chemical changes such as temperature change, gas formation, and precipitate formation.
• Distinguish chemical evidence from physical rearrangement of matter using the particle-level (microscopic) viewpoint.

Learning Objectives

• Identify and distinguish common reaction types: synthesis, decomposition, single/double displacement, and combustion.
• Predict likely products from reactants by using particle and bonding patterns.
• Explain how conservation of mass constrains reaction outcomes and evidence from observations.

Learning Objectives

• Explain how the number of protons and the chemical symbol identify an element.
• Describe how atomic models help represent the identity of atoms and elements.
• Classify elements as metals or nonmetals and use examples (iron, carbon, oxygen).+ Show more

Learning Objectives

• Define chemical properties as the tendencies of substances to undergo specific chemical changes.
• Identify evidence of chemical change, such as new substances, gas evolution, precipitate formation, and permanent colour change.
• Distinguish chemical change from physical change using observable reaction outcomes.

Learning Objectives

• Define physical properties as observable or measurable characteristics that do not change a substance’s chemical identity.
• Identify and distinguish common intensive and extensive physical properties in everyday materials.
• Explain how physical properties can be used to classify materials and choose separation or testing methods.

Learning Objectives

• Describe physical changes as changes in state or form that keep the same chemical identity.
• Differentiate reversible and irreversible physical transformations using everyday examples.
• Explain how energy transfer is involved in melting, freezing, evaporation, and condensation.+ Show more

Learning Objectives

• Explain how chemical formulas represent compounds as fixed combinations of elements and relate to the law of definite composition
• Differentiate covalent and ionic bonding and predict how bonding type can affect observable properties
• Use chemical formulas to describe elemental ratios and to distinguish compounds from mixtures

Learning Objectives

• Evaluate how everyday chemicals provide benefits while creating risks to health and the environment.
• Use chemical properties and exposure routes to explain why some substances persist or spread.
• Apply evidence-based reasoning to compare safe handling, disposal, and regulatory options.

Learning Objectives

• Distinguish between homogeneous and heterogeneous mixtures using evidence such as visible phases
• Identify physical methods of separation and match them to differences in particle size, solubility, boiling point, and density
• Explain why physical separation preserves the chemical identity of mixture components

Learning Objectives

• Explain how isolating variables and using reference conditions support causal interpretation.
• Describe why replication and baseline characterization increase the credibility of results.
• Identify how residual confounding and uncontrolled variation weaken causal claims, even when patterns appear.

Learning Objectives

• Define power as the rate of energy transfer or work per unit time, including average and instantaneous formulations.
• Explain mechanical efficiency as the ratio of useful output energy or work to input energy, and identify sources of energy loss.
• Compare power ratings of different motors and analyze trade-offs involving mechanical advantage and efficiency in real-world machines.+ Show more

Learning Objectives

• Define power as the rate of energy transfer or work per unit time and understand its units.
• Explain mechanical efficiency and how it quantifies useful output relative to input energy.
• Identify factors such as friction and heat that cause energy losses in machines.+ Show more

Learning Objectives

• Explain why energy decreases across successive trophic levels
• Interpret trophic pyramids and patterns in biomass
• Calculate or interpret ecological efficiency and production-to-biomass ratios+ Show more

Learning Objectives

• Understand the mechanisms that lead to the formation of new species.
• Identify different models of speciation such as allopatric and sympatric.
• Explain the role of geographic separation and genetic divergence in speciation.+ Show more

Learning Objectives

• Identify different types of empirical evidence that support the theory of evolution.
• Explain how fossils, anatomy, and genetic data provide insights into common ancestry.
• Describe examples of transitional fossils and homologous structures across species.+ Show more

Learning Objectives

• Understand the mechanisms of differential survival and reproduction based on heritable variation.
• Identify examples of natural selection such as beak morphology shifts in finches and bacterial resistance.
• Explain how quantitative models illustrate different types of selection.+ Show more

Learning Objectives

• Interpret pedigrees using standardized symbols and relationship patterns across generations
• Differentiate autosomal dominant, autosomal recessive, X-linked, and mitochondrial inheritance using affected and carrier information
• Apply probability reasoning from pedigrees to estimate risk for relatives

Learning Objectives

• Explain the different types of intermolecular forces and how they influence physical properties.
• Compare the strengths of London dispersion forces, dipole–dipole interactions, and hydrogen bonds.
• Relate molecular structure to the behavior and physical properties of substances.+ Show more

Learning Objectives

• Explain the biochemical pathways involved in cellular respiration and energy production.
• Describe the roles of mitochondria and chloroplasts in metabolism.
• Analyze the relationship between energy flow, ATP synthesis, and organismal energy balance.+ Show more

Learning Objectives

• Understand the relative motions of the Moon, Earth, and Sun that produce different Moon phases.
• Explain how the geometry of the Earth-Moon-Sun system causes eclipses.
• Describe the reasons why eclipses do not happen every month.+ Show more

Learning Objectives

• Understand and explain the different modes of heat transfer: conduction, convection, and radiation.
• Perform calculations involving specific heat capacity, mass, and temperature change to determine heat transfer and energy changes.
• Interpret sign conventions for heat flow and internal energy changes in closed systems.+ Show more