Grade 9 Science Worksheets

Learning Objectives

• Understand the inverse-square relationship in gravitational and electrostatic forces.
• Apply mathematical formulas to calculate magnitudes and directions of forces between objects.
• Differentiate between gravitational and electrostatic force interactions.+ Show more

Learning Objectives

• Describe how molecular and cellular interactions contribute to organ system functions.
• Analyze clinical exemplars such as cystic fibrosis, heart failure, and metabolic syndrome to connect genetic and physiological factors.
• Interpret biochemical assays, histology, and organ function metrics to explain organismal health and disease.

Learning Objectives

• Understand the impact of multiple factors on ecosystem responses and stability.
• Identify trophic interactions, feedback mechanisms, and material fluxes within ecosystems.
• Evaluate the effects of climate variability, land-use change, and species introductions.+ 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

• Explain how melting, crystallization, weathering, transport, deposition, and metamorphism transform rocks over geologic time.
• Identify physical and chemical mechanisms that drive rock changes and describe how these connect to tectonic settings.
• Use rock-cycle ideas and evidence from rock types to connect rock histories to landscape evolution and resource occurrence.

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 cellular respiration and photosynthetic carbon fixation connect to organelles and energy needs
• Describe key stages of cellular respiration (glycolysis, citric acid cycle, and electron transport) and how they contribute to ATP production
• Use quantitative reasoning to interpret reactants/products and relate oxygen consumption and ATP yield to metabolic flux

Learning Objectives

• Explain the principles of Mendelian inheritance, including dominant and recessive alleles.
• Interpret Punnett squares to predict genotype and phenotype ratios.
• Distinguish between simple Mendelian inheritance and inheritance patterns influenced by linkage, incomplete dominance, and codominance.+ 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

• Identify atmospheric indicators associated with hurricanes.
• Understand how flooding risks are assessed in different regions.
• Evaluate the effects of atmospheric conditions on natural hazard occurrence.+ Show more

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 how net external forces influence the motion of objects using Newtonian dynamics.
• Interpret force diagrams and free-body diagrams to analyze force interactions.
• Apply quantitative concepts to calculate acceleration resulting from various force scenarios.+ 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

• Describe the mechanisms of transmembrane movement including passive diffusion, facilitated transport, and active transport.
• Explain the role of membrane composition and transporters in establishing electrochemical gradients and osmotic balance.
• Use quantitative reasoning to connect transport processes to cellular homeostasis and predict effects of structural modifications on transport efficiency.

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 functional requirements and distinguish them from constraints in an engineering problem frame.
• Analyze competing constraints (social, economic, regulatory, environmental, and safety) to prioritize design choices.
• Use qualitative reasoning and basic quantitative bounds to judge feasibility of a conceptual solution.+ 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 the roles of producers and consumers in ecosystems.
• Describe the processes of photosynthesis and cellular respiration.
• Analyze how energy is transferred and cycling of carbon and oxygen occurs between organisms and their environment.+ 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

• Analyze spatial and temporal climate datasets to identify trends and anomalies.
• Apply statistical methods such as trend analysis and composite mapping to climate data.
• Interpret potential climate drivers by comparing datasets with forcings like greenhouse gases and volcanic aerosols.+ Show more

Learning Objectives

• Explain the processes involved in energy system transitions and decarbonization pathways.
• Analyze life-cycle greenhouse gas emissions for various energy technologies.
• Evaluate the trade-offs between reliability, affordability, and emissions reductions in energy planning.+ Show more

Learning Objectives

• Explain how chemical equation coefficients balance the number of atoms on both sides, reflecting conservation of matter
• Interpret balanced equations as consistent particle-to-particle accounting between reactants and products
• Determine whether statements about balancing equations are correct and justify reasoning using atomic counts

Learning Objectives

• Explain how choosing appropriate instruments and units helps observations become usable data.
• Distinguish precision from accuracy using measurement examples and descriptions.
• Describe how calibration, repeat trials, and consistent reference standards improve reliability of data.

Learning Objectives

• Explain how energy can change form while the total energy of a chosen system stays balanced.
• Describe how mechanical energy can convert to heat due to resistive forces like friction and air resistance.
• Predict how temperature changes can affect motion and material behavior.

Learning Objectives

• Explain conservation of atoms during chemical reactions using particle-level reasoning.
• Use conservation of mass in a closed system to justify why total mass does not change.
• Connect reactant quantities to possible product quantities through atom accounting.

Learning Objectives

• Explain the mechanisms leading to the formation of new species, including reproductive isolation and genetic divergence.
• Differentiate between allopatric and sympatric speciation models with examples.
• Describe how hybrid zones, polyploidy, and adaptive radiation contribute to speciation.+ Show more

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

• Explain how hazard risk depends on occurrence, frequency, and consequences for natural events
• Use exposure, vulnerability, and cascading system effects to evaluate community and infrastructure susceptibility
• Connect hazard mapping and return-period information to mitigation and planning decisions

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

• Identify different types of electromagnetic radiation and their positions in the spectrum.
• Describe the characteristics of electromagnetic waves, including frequency and wavelength.
• Explain how photons relate to electromagnetic wave energy and matter interactions.+ 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