Grade 9 Science Worksheets

Learning Objectives

• Understand the process of light reactions in photosynthesis
• Identify the role of pigments and electron transport in photosynthesis
• Explain how energy from light is converted into chemical energy

Learning Objectives

• Define and characterize physical changes as alterations in state or form that retain the original identity.
• Identify examples of physical changes such as melting, freezing, evaporation, condensation, and dissolving.
• Distinguish between reversible and irreversible physical changes with real-life exemplars.+ Show more

Learning Objectives

• Identify and differentiate the main types of chemical reactions including synthesis, decomposition, single displacement, double displacement, and combustion.
• Describe typical observable outcomes and patterns in reactants and products for each reaction type.
• Connect reaction classification to predicting products and applying conservation of mass principles.+ Show more

Learning Objectives

• Explain how organelle form and abundance vary across cell types and taxa.
• Connect structural adaptations (e.g., ER, mitochondria, vacuoles, cilia) to specialized cellular functions.
• Use comparative reasoning to predict how cell structure supports physiological roles and ecological strategies.

Learning Objectives

• Represent forces as vectors using magnitude and direction in two dimensions
• Resolve a force into perpendicular (x- and y-) components and add components to find a resultant
• Use graphical and analytical methods to determine net force and relate net force to acceleration

Learning Objectives

• Understand the principles of mechanical energy conservation and energy transfer.
• Identify real-world examples of energy conversions in Alberta contexts.
• Explain the effects of non-conservative forces like friction on energy transfer.+ Show more

Learning Objectives

• Differentiate between series and parallel circuit arrangements based on how current and voltage behave.
• Predict how brightness and reliability change in series versus parallel circuits using circuit rules.
• Apply circuit reasoning to real-life examples such as lighting strings and household receptacles.

Learning Objectives

• Use probability and Punnett-square reasoning to predict trait frequencies across multiple generations.
• Explain how dominant and recessive alleles affect offspring phenotypes even when carriers are not visibly different.
• Interpret family patterns to support or question genetic predictions.

Learning Objectives

• Understand the concept of net force as the vector sum of all forces acting on an object.
• Analyze how different forces, including opposing forces like friction and air resistance, affect motion.
• Apply quantitative methods to calculate net force and predict motion changes in real-world scenarios.+ Show more

Learning Objectives

• Define work as energy transfer when a force acts through a distance
• Identify key terms: force, distance, direction, mechanical advantage
• Explain how changing distance and force affects work and machine performance+ Show more

Learning Objectives

• Interpret position–time and velocity–time graphs by relating slope to velocity and acceleration.
• Determine displacement from the area under a velocity–time graph and explain sign changes.
• Connect piecewise motion on graphs to changes in kinematic variables and Newton’s second law.

Learning Objectives

• Understand Mendelian inheritance patterns, including dominant and recessive alleles.
• Distinguish between genotype and phenotype.
• Apply Punnett square logic to predict genetic ratios in offspring.+ Show more

Learning Objectives

• Distinguish elements, compounds, and mixtures using macroscopic appearance and compositional criteria.
• Define pure substances and explain how fixed composition differs from variable composition in mixtures.
• Use chemical symbols and formulas to represent elements and compounds and relate them to classification.+ Show more

Learning Objectives

• Identify human activities that impact watersheds
• Understand consequences of urbanization, deforestation, agriculture, and infrastructure on water systems
• Describe indicators used to measure watershed health+ Show more

Learning Objectives

• Explain the meaning of power as the rate of energy transfer in mechanical systems.
• Compare efficiency using useful output energy versus input energy.
• Describe how real-world energy losses reduce efficiency and affect machine performance.+ Show more

Learning Objectives

• Explain how major genetic technologies (selective breeding, hybridization, genetic modification, and gene editing) can change traits
• Describe how trait changes occur at both molecular and population levels in agriculture
• Evaluate why monitoring and risk–benefit assessment matter for deploying biotechnology in real settings

Learning Objectives

• Describe how binary fission, budding, spore formation, and vegetative propagation produce genetically identical offspring.
• Explain how asexual reproduction can spread quickly in stable environments while limiting genetic diversity.
• Compare ecological conditions that tend to favor asexual strategies versus those that favor sexual reproduction.+ Show more

Learning Objectives

• Explain how prototypes generate evidence that can be compared to success criteria.
• Identify examples of measurable performance criteria such as strength, temperature, flow rate, and accuracy.
• Use data reasoning to decide whether a design needs refinement or a new approach.

Learning Objectives

• Explain the process of dissolution and how solute-solvent interactions affect solubility.
• Differentiate between saturated, unsaturated, and supersaturated solutions with examples.
• Describe factors such as temperature and agitation that influence solubility.+ Show more

Learning Objectives

• Understand the sequence and function of metabolic pathways like catabolic and anabolic processes.
• Identify key enzymes and their roles in energy harvesting and storage.
• Explain regulation mechanisms such as feedback inhibition and compartmentalization.+ Show more

Learning Objectives

• Calculate work done by a constant force using the cosine of the angle between force and displacement.
• Estimate work done by a varying force using the area under a force–distance curve.
• Connect work in real situations (pulling at an angle, lifting against gravity, and spring stretching) to quantitative calculations.

Learning Objectives

• Explain how phylogenetic trees represent hypothesized evolutionary relationships among taxa
• Distinguish monophyletic, paraphyletic, and polyphyletic groupings and relate them to common ancestry
• Use characters (morphological or molecular) and synapomorphies to reason about tree topology+ Show more

Learning Objectives

• Understand how mole relationships connect masses of reactants and products in chemical equations.
• Learn how molar mass converts between mass and amount of substance.
• Interpret coefficients in balanced equations to determine mole ratios.+ Show more

Learning Objectives

• Identify different trophic levels in an ecosystem
• Explain how energy is transferred between producers and consumers
• Understand the concept of energy loss as heat during trophic transfers+ Show more

Learning Objectives

• Explain how the relative positions of the Sun, Moon, and Earth produce the Moon’s predictable phase cycle.
• Describe the conditions required for solar and lunar eclipses and why eclipses do not occur every month.
• Connect the Moon’s orbital tilt and viewing geometry to eclipse frequency and visibility.

Learning Objectives

• Identify the main idea of a science passage about thermoregulation.
• Use key vocabulary related to maintaining body temperature.
• Explain how a body temperature set point supports feedback control.

Learning Objectives

• Compare ionic, covalent, and metallic bonding using electron models
• Explain how polarity affects intermolecular attraction between molecules
• Describe electron transfer, sharing, and delocalization in bonding+ Show more

Learning Objectives

• Use observed symptoms and measurement data to infer likely electrical failure modes (open circuits, short circuits, or degraded components).
• Relate circuit topology (series/parallel paths and component placement) to diagnostic reasoning outcomes.
• Evaluate whether a given measurement pattern best supports an open circuit, a short circuit, or component degradation.

Learning Objectives

• Identify key features of subduction zones.
• Describe the processes occurring beneath oceanic trenches.
• Explain how subduction zones generate earthquakes and volcanoes.+ Show more

Learning Objectives

• Understand the concept of work in physics as energy transfer through force and displacement.
• Identify the conditions under which work is positive or negative.
• Explain how work relates to changes in kinetic and potential energy.+ Show more

Learning Objectives

• Explain how key biotechnology techniques (PCR, gel electrophoresis, DNA sequencing, and CRISPR) work for genetic analysis and modification.
• Describe real-world applications of biotechnology in diagnostics, medicine, agriculture, forensics, and synthetic biology.
• Evaluate ethical, legal, and societal considerations related to genetic data, environmental impact, and equitable access.

Learning Objectives

• Understand the fundamental processes involved in mountain formation.
• Identify the features and mechanisms of plate convergence and continental collision.
• Learn how tectonic processes shape mountain ranges and landscapes.+ Show more

Learning Objectives

• Understand basic genetic terms and DNA structure.
• Learn techniques used in genetic data analysis.
• Interpret genetic data patterns and inheritance.

Learning Objectives

• Explain how lunar phases form from the geometry of the Earth–Moon–Sun system.
• Distinguish solar vs. lunar eclipses and classify partial, total, and annular eclipses.
• Describe why eclipses do not occur every month, using orbital nodes and orbital inclination.+ Show more

Learning Objectives

• Explain the concept of a limiting reactant in chemical reactions.
• Calculate the theoretical yield from balanced chemical equations and molar ratios.
• Differentiate between actual yield and theoretical yield, and calculate percent yield.+ Show more

Learning Objectives

• Describe the characteristics of static and kinetic friction and how they differ.
• Explain the concept of fluid drag and its dependence on velocity, surface area, and medium density.
• Apply the formulas involving μ coefficients to approximate frictional forces.+ Show more

Learning Objectives

• Understand the relationship between genotypes and phenotypes
• Interpret molecular and phenotypic data in genetics
• Identify inheritance patterns through genetic traits+ Show more

Learning Objectives

• Explain how catabolic and anabolic pathways connect to meet an organism’s energy needs across tissues
• Describe how hormonal and nutrient signals redirect metabolic intermediates toward ATP production, storage, or biosynthesis
• Compare immediate post-translational control with longer-term changes in enzyme expression and organelle activity

Learning Objectives

• Identify the four principal tissue classes and describe key cellular and structural features of each.
• Explain how extracellular matrix properties and tissue architecture relate to tissue function in organs.
• Compare specialized epithelia for absorption and secretion and relate them to real examples (e.g., gas exchange).+ Show more

Learning Objectives

• Represent forces using magnitude and direction
• Resolve forces into perpendicular components
• Calculate net force using vector components+ Show more

Learning Objectives

• Explain how disturbances can change ecosystem stability by altering species interactions and environmental conditions
• Describe how feedback processes and recovery rates affect whether an ecosystem returns to its prior state
• Use evidence from population trends and community structure to reason about gradual versus rapid ecosystem shifts+ Show more

Learning Objectives

• Understand key ethical issues related to biotechnology and genetic manipulation.
• Evaluate societal implications, including privacy, consent, and ecological impact.
• Analyze regulatory frameworks and the role of public engagement in biotech policies.+ Show more

Learning Objectives

• Explain what a scale bar tells you about size in a micrograph.
• Distinguish resolution from magnification when interpreting image details.
• Identify how contrast and staining help reveal cellular structures.

Learning Objectives

• Understand the fundamental principles of cell theory.
• Identify the differences between prokaryotic and eukaryotic cells.
• Recognize the roles of various cell organelles.+ Show more

Learning Objectives

• Explain how allele combinations in parents determine the possible genotypes of offspring
• Use probability to predict the expected proportions of phenotypes across multiple generations
• Interpret dominance and recessiveness to understand how recessive traits may be hidden

Learning Objectives

• Understand the concept of friction as a force opposing motion between surfaces.
• Identify the differences between static and kinetic friction.
• Explain how surface properties and normal force affect frictional magnitude.+ Show more

Learning Objectives

• Interpret information from graphs and tables by describing trends, spread, and possible outliers.
• Apply correct reasoning when comparing data across conditions using axes, scales, and labels.
• Evaluate claims about data using evidence from representations.

Learning Objectives

• Analyze a complex mechanical situation by identifying internal forces, external forces, and which forces change motion.
• Use Newton’s laws and net force ideas to predict acceleration and changes in velocity for interacting bodies.
• Account for how energy transfers and dissipates across system components during an event.