Grade 9 Science Worksheets

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 different types of chemical bonds: ionic, covalent, and metallic.
• Recognize how bonding influences molecular structure and properties.
• Interpret Lewis structures and models of electron sharing and transfer.+ 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 different types of wave interactions at boundaries
• Identify characteristics of reflection, refraction, transmission, absorption, diffraction, and interference
• Apply wave models to explain observed wave behaviors at boundaries

Learning Objectives

• Understand the concept of power as the rate of energy transfer or conversion per unit time.
• Identify and compare the energy demand and efficiency of various systems, including household appliances and electrical grids.
• Calculate and analyze power ratings, energy consumption over time, and system losses in different contexts.+ Show more

Learning Objectives

• Understand the principles of Mendelian inheritance including dominance, segregation, and independent assortment.
• Apply Punnett square analysis to predict genotype and phenotype ratios in monohybrid and dihybrid crosses.
• Interpret pedigrees and analyze inheritance patterns considering incomplete dominance, codominance, and linked loci.+ Show more

Learning Objectives

• Describe the biochemical pathways involved in cellular respiration, including glycolysis, the citric acid cycle, and electron transport.
• Explain how ATP is produced and energy is coupled within cells.
• Relate the function of mitochondria and chloroplasts to metabolic fluxes and organismal energy balance.+ Show more

Learning Objectives

• Define and differentiate between kinetic and potential energy in mechanical systems.
• Apply the work-energy theorem to analyze energy transfer in near-ideal systems.
• Calculate mechanical energy, power, and analyze the effects of non-conservative forces like friction.+ Show more

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

• Explain the principles of energy conversion in various devices.
• Identify examples of energy transfer and associated efficiencies.
• Analyze energy losses during conversion processes.+ Show more

Learning Objectives

• Understand the concept of energy conservation in closed and open systems.
• Recognize how energy transfer is represented using diagrams and mathematical models.
• Analyze energy reservoirs and verify constancy of energy in isolated systems.+ 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

• Identify different types of electromagnetic waves and their order in the spectrum
• Understand the relationship between frequency, wavelength, and energy of electromagnetic waves
• Recognize characteristic phenomena such as atomic emission/absorption lines and spectral attenuation+ Show more

Learning Objectives

• Explain the concepts of negative and positive feedback in maintaining internal stability.
• Identify physiological examples of feedback mechanisms, including thermoregulation, blood glucose regulation, and osmoregulation.
• Differentiate between rapid corrective responses and slower hormonal adjustments in feedback processes.+ Show more

Learning Objectives

• Identify the key types of empirical evidence that support the theory of evolution.
• Explain how fossil records, comparative anatomy, and molecular sequences provide evidence for common ancestry.
• Understand the significance of transitional fossils, homologous structures, and DNA similarities among species.+ 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 energy transfer across trophic levels in ecosystems.
• Identify components of food webs and trophic pyramids.
• Demonstrate understanding of biomass distribution and ecological efficiency.+ Show more

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 the plasma membrane and its components involved in transport.
• Differentiate between passive and active transport mechanisms across cell membranes.
• Explain the roles of membrane proteins such as channels, pumps, and receptors in cellular transport.+ Show more

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

• Understand the stages and types of ecological succession and their characteristics.
• Identify factors influencing succession dynamics and community changes over time.
• Explain how succession models predict long-term ecosystem responses to environmental changes.+ 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

• Explain how molecules move across cellular membranes through passive and active processes.
• Differentiate between diffusion, facilitated diffusion, osmosis, and active transport.
• Describe vesicular transport mechanisms such as endocytosis and exocytosis.+ 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