Grade 9 Science Worksheets

Learning Objectives

• Explain the main stages in moving electricity from generation to consumers.
• Describe how voltage transformation supports long-distance power transmission.
• Use a simple sequence to predict how faults can spread through a network.+ Show more

Learning Objectives

• Understand the purpose and components of free-body diagrams
• Identify forces acting on an object in different scenarios
• Learn the conventions for drawing force vectors including size, direction, and point of application+ Show more

Learning Objectives

• Understand the composition and characteristics of Earth's main layers: crust, mantle, and core.
• Explain how density, temperature, and pressure change with depth inside a planet.
• Distinguish between mechanical behaviors of lithosphere and asthenosphere.+ Show more

Learning Objectives

• Understand how microscopes provide visual models of cell structures and scales.
• Identify different types of microscopes and their uses in cell observation.
• Explain how diagrammatic and physical models help interpret microscopic observations.+ Show more

Learning Objectives

• Understand how air pollutants affect cellular health.
• Identify common air pollutants and their sources.
• Recognize the health risks associated with air pollution exposure.+ Show more

Learning Objectives

• Understand the ecological, economic, and health risks associated with genetic technologies.
• Evaluate potential consequences such as gene flow, resistance development, market impacts, and therapeutic opportunities.
• Analyze case examples like canola introgression and cattle genetics in Alberta.+ Show more

Learning Objectives

• Identify action-reaction force pairs in various scenarios.
• Explain the concept that forces in a pair have equal magnitude and opposite direction.
• Apply Newton's third law to analyze real-world interactions such as collisions and propulsion.+ Show more

Learning Objectives

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

Learning Objectives

• Explain the law of conservation of mass and its significance in chemical reactions.
• Describe how balanced equations reflect mass conservation.
• Relate measurable mass changes to molecular rearrangements during reactions.+ Show more

Learning Objectives

• Understand the concept of homeostasis and its importance in maintaining internal body conditions.
• Identify the systems involved in homeostasis and their feedback mechanisms.
• Explain how various body systems coordinate to regulate temperature, pH, and blood glucose levels.+ Show more

Learning Objectives

• Understand the concept of Milankovitch cycles and their influence on Earth's climate.
• Identify the three main orbital parameters that vary in Milankovitch theory.
• Explain how variations in Earth's orbit affect glacial and interglacial periods.+ Show more

Learning Objectives

• Understand the concepts of power and efficiency in mechanical systems.
• Learn how energy transfer affects system performance.
• Analyze real-world examples of power and efficiency differences.

Learning Objectives

• Understand the methods for assessing the fit of models to empirical data.
• Identify diagnostic patterns that indicate model inadequacies.
• Explain how residual analysis and goodness-of-fit measures inform model refinement.+ Show more

Learning Objectives

• Understand the basic principles of natural selection and how it leads to evolution.
• Identify examples of natural selection in real-world scenarios.
• Distinguish between different types of selection: directional, stabilizing, and disruptive.+ Show more

Learning Objectives

• Describe the components of an atom, including protons, neutrons, and electrons.
• Explain how electron configurations relate to element properties.
• Identify patterns in the periodic table based on valence electrons.+ Show more

Learning Objectives

• Explain how greenhouse gases trap outgoing longwave radiation and affect Earth’s energy balance
• Identify common greenhouse gases and describe both natural and human sources
• Interpret statements about greenhouse effect processes and measurable climate responses

Learning Objectives

• Describe the structure of ATP and its components.
• Explain how hydrolysis of ATP releases energy for cellular processes.
• Understand the role of phosphorylation in energy transfer within cells.+ Show more

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

• Explain how eccentricity, axial tilt, and precession affect Earth’s incoming solar energy (insolation).
• Describe why Milankovitch cycles operate on timescales of tens to hundreds of thousands of years.
• Interpret how climate feedbacks and geological evidence connect orbital changes to glacial and interglacial periods.

Learning Objectives

• Explain how unit cells and repeating 3D arrangements form crystal lattices.
• Compare ionic, metallic, and covalent network lattices using structure-property relationships.
• Predict how lattice type affects properties such as brittleness, electrical conductivity, and melting point.

Learning Objectives

• Understand the basic components of an atom: protons, neutrons, and electrons.
• Explain how atomic number and mass number relate to isotopes and element identity.
• Describe simple models of nuclei and electron shells to interpret chemical behavior.+ Show more

Learning Objectives

• Explain when total mechanical energy remains constant in an ideal system.
• Describe kinetic and potential energy transformations during motion.
• Explain how friction changes mechanical energy through negative work.+ Show more

Learning Objectives

• Explain how chemical bonds break and form during reactions and how this relates to energy changes.
• Interpret symbolic chemical equations using states, subscripts, and stoichiometric coefficients.
• Use the relative amounts indicated by coefficients to reason about reactants and products in simple reactions.+ Show more

Learning Objectives

• Explain how mechanical energy conservation relates kinetic and gravitational potential energy
• Use energy bookkeeping to predict feasible motion considering non-conservative losses like friction
• Identify energy transfers and dissipation in real Alberta contexts (hydroelectric dams and skiers)

Learning Objectives

• Understand how temperature, pressure, concentration, and catalysts influence chemical reactions in system refinement.
• Recognize the principles of equilibrium and kinetics in designing chemical processes.
• Apply quantitative tools like equilibrium constants and reaction-rate expressions to predict product distribution.+ Show more

Learning Objectives

• Understand the fundamental particles that make up atoms and their roles in atomic structure.
• Describe how electron configurations and energy levels influence chemical behavior.
• Explain how the periodic table organizes elements based on valence electrons and properties.+ Show more

Learning Objectives

• Understand the principles of conservation of mass in chemical reactions.
• Interpret balanced chemical equations to relate moles, mass, and particle counts.
• Explain limiting reagent concepts and calculate theoretical yields.+ Show more

Learning Objectives

• Describe how neural and hormonal signals work together to maintain homeostasis.
• Explain the roles of nerve impulses and hormones in response to stimuli.
• Identify interactions between the nervous and endocrine systems and their effects.+ Show more

Learning Objectives

• Identify the different types of seismic waves and their propagation characteristics.
• Explain how earthquake focal mechanisms reveal fault types and stress orientations.
• Relate seismic wave travel times to Earth's interior structure and methods for locating epicentres.+ Show more

Learning Objectives

• Explain how power describes the rate of energy transfer and relate it to how quickly work is done.
• Calculate and interpret efficiency as the fraction of input energy that becomes useful output energy.
• Analyze how energy losses (heat, sound, deformation) reduce efficiency in real machines.

Learning Objectives

• Understand the concept of mole relationships in chemical reactions.
• Use molar mass to convert between mass and moles of substances.
• Interpret coefficients in balanced equations to determine mole ratios.+ Show more

Learning Objectives

• Describe the fundamental particles of atoms: protons, neutrons, and electrons.
• Explain electron configurations and their significance in atomic behavior.
• Organize elements using the periodic table based on valence electrons.+ Show more

Learning Objectives

• Explain particle conservation by describing how atoms rearrange during chemical reactions.
• Use the particulate view to justify why total mass and the number of atoms of each element stay the same.
• Interpret reactants and products as collections of atoms rather than matter being created or destroyed.

Learning Objectives

• Explain the structure and function of DNA and chromosomes.
• Describe how DNA is organized within chromosomes and cellular organelles.
• Compare nuclear and organelle genomes in heredity.+ Show more

Learning Objectives

• Understand the fundamental mechanisms of evolution, including natural selection, genetic drift, mutation, and gene flow.
• Explain how these mechanisms interact to produce long-term changes in populations.
• Identify examples of evolution in real-world scenarios.+ Show more

Learning Objectives

• Understand the structure and purpose of phylogenetic trees in evolutionary biology.
• Identify monophyletic, paraphyletic, and polyphyletic groups within trees.
• Distinguish between rooted and unrooted phylogenetic trees and interpret branch lengths.+ Show more

Learning Objectives

• Define adaptive radiation and describe its key features.
• Identify examples of adaptive radiation in nature.
• Understand the role of ecological niches and key innovations in speciation.+ Show more

Learning Objectives

• Understand and explain the key kinematic equations involving constant acceleration.
• Apply the equations to analyze vertical free-fall motion and horizontal projectile motion.
• Interpret sign conventions and component-wise treatment in motion problems.+ Show more

Learning Objectives

• Describe the components of the hydrologic cycle and how water moves among reservoirs.
• Explain the processes of evaporation, condensation, precipitation, infiltration, runoff, and groundwater flow.
• Analyze the factors affecting water residence time and fluxes in different reservoirs.+ Show more

Learning Objectives

• Understand the causes of apparent diurnal and annual motion of celestial objects from Earth's perspective.
• Describe how Earth's rotation and revolution lead to observable sky changes over nights and seasons.
• Apply celestial coordinate concepts such as rising, setting, altitude, and azimuth to explain observed phenomena.+ Show more

Learning Objectives

• Describe the Earth's rotation, revolution, and orbital parameters and how they cause observable cycles like day and night.
• Explain the relative motions of the Moon and Sun and how gravitational interactions lead to tidal phenomena.
• Differentiate between sidereal and solar periods and relate these to Earth's observable celestial cycles.+ Show more

Learning Objectives

• Describe the different phases of the Moon and how they are caused by Earth-Moon-Sun alignment.
• Explain the geometry behind solar and lunar eclipses, including partial, total, and annular types.
• Identify the conditions necessary for eclipses to occur, such as node alignment and orbital inclination.+ Show more

Learning Objectives

• Explain the sources and mechanisms of energy transfer within Earth's systems.
• Describe how energy gradients influence atmospheric and oceanic circulation.
• Analyze the relationship between radioactive decay and mantle convection.+ Show more

Learning Objectives

• Describe diagnostic physical and chemical properties of common rock-forming minerals.
• Explain how mineral composition relates to formation environment and stability under varying temperature and pressure conditions.
• Connect mineral assemblages to petrogenetic histories and economic significance, including distinctions between ore minerals and gangue.

Learning Objectives

• Describe Earth's main concentric layers and their properties.
• Explain differences between lithosphere and asthenosphere in mechanical behavior.
• Analyze how density, temperature, and pressure vary with depth inside Earth.+ Show more

Learning Objectives

• Explain human impacts such as urbanization, deforestation, agriculture, and infrastructure on watershed processes.
• Describe consequences of watershed alterations, including effects on runoff, sediment load, nutrient fluxes, and groundwater recharge.
• Relate changes in watershed activities to channel morphology, flood frequency, and aquatic ecosystem health.+ Show more

Learning Objectives

• Understand how orbital parameters such as eccentricity, axial tilt, and precession influence seasonal insolation and climate variability.
• Explain the gravitational and geometric basis of tidal forcing from the Moon and Sun.
• Analyze resonance effects and tidal locking phenomena in orbital dynamics.+ Show more

Learning Objectives

• Understand the mechanisms of plate tectonics and surface expressions such as boundaries and subduction.
• Explain how lithospheric plate motions produce geological features like volcanism and mountain building.
• Link mantle convection and slab pull to the driving forces of plate movements.+ Show more