Grade 9 Science Worksheets

Learning Objectives

• Understand how net force affects the motion of objects.
• Learn to resolve forces into components and calculate net force.
• Identify the conditions when forces are balanced or unbalanced.+ Show more

Learning Objectives

• Explain how Earth’s axial tilt changes the angle of incoming sunlight and affects solar heating.
• Describe how Earth’s rotation and orbit determine day length and seasonal timing.
• Use latitude and the concept of daylight duration to predict relative changes in temperature patterns.

Learning Objectives

• Understand common electrical faults such as open circuits, short circuits, and component degradation.
• Learn how to interpret symptom descriptions, circuit topology, and measurement data to diagnose faults.
• Apply logical reasoning and inference to determine probable failure modes based on observed signals and readings.+ Show more

Learning Objectives

• Define electric current, voltage, and resistance and describe what each quantity represents in a circuit
• Use SI units, symbols, and typical magnitudes to interpret and compare values in real electrical systems
• Apply relationships between voltage, current, and resistance to reason about energy transfer and component choice

Learning Objectives

• Identify key regulatory terms involved in initiating transcription.
• Explain how transcription factors and repressor proteins influence RNA production.
• Describe how promoters, enhancers, and chromatin accessibility work together to control gene expression.

Learning Objectives

• Understand and identify key physical properties of minerals
• Develop observational skills to examine minerals accurately
• Apply knowledge of mineral properties to real-world examples+ Show more

Learning Objectives

• Explain the mechanisms driving surface and deep ocean currents.
• Identify features such as gyres, upwelling zones, and boundary currents and their effects.
• Describe how changes in ocean circulation can influence climate and weather patterns.+ Show more

Learning Objectives

• Understand the concept of the greenhouse effect
• Identify natural and human sources of greenhouse gases
• Recognize how greenhouse gases trap outgoing radiation+ Show more

Learning Objectives

• Explain the meaning of mean, median, and mode and when each is most appropriate
• Analyze how skew, outliers, and multimodal distributions affect different measures of central tendency
• Justify a chosen summary statistic using assumptions about the data-generating process

Learning Objectives

• Understand the concept of lunar phases and their causes.
• Identify and name the different lunar phases.
• Explain the relative positions of the Sun, Moon, and Earth during each phase.+ Show more

Learning Objectives

• Explain how the kidney maintains fluid volume, osmolarity, and electrolyte balance.
• Describe how filtration, selective reabsorption, secretion, and concentration work together across nephron segments.
• Summarize the roles of antidiuretic hormone (ADH) and aldosterone in fluid balance.

Learning Objectives

• Understand what scientific models are and their purpose
• Identify how models help explain phenomena and predict outcomes
• Learn how models are refined based on new evidence+ Show more

Learning Objectives

• Explain how appropriate scales, calibrated instruments, and consistent units affect measurement accuracy.
• Use significant figures and uncertainty ranges to report measurements with justified precision.
• Convert between units and record data consistently to support fair comparisons.

Learning Objectives

• Understand the basic concepts of heredity, genes, and alleles
• Describe how traits are inherited from parents
• Identify the difference between dominant and recessive traits+ Show more

Learning Objectives

• Understand the differences between ionic lattices, covalent networks, and molecular solids.
• Identify properties such as melting point, electrical conductivity, hardness, and solubility related to lattice organization.
• Explain how electrical forces influence the structure and properties of different solid types.+ Show more

Learning Objectives

• Explain the causes of lunar phases based on the positions of the Sun, Earth, and Moon.
• Describe the sequence of lunar phases and how they relate to the Moon's orbit.
• Predict lunar phases using the geometry of the Sun-Earth-Moon system.+ Show more

Learning Objectives

• Understand the basic idea that matter is made of tiny particles in constant motion
• Recognize how particle arrangements differ in solids, liquids, and gases
• Explain how particle movements relate to observable phenomena like diffusion and pressure

Learning Objectives

• Identify different types of physical changes such as melting, freezing, evaporation, condensation, and dissolving.
• Distinguish between reversible and irreversible physical transformations.
• Understand how energy transfer relates to phase changes.+ Show more

Learning Objectives

• Explain the conservation of mass principle in closed systems during chemical reactions
• Use mass accounting to predict how total mass of reactants compares to total mass of products
• Distinguish true mass conservation in sealed conditions from apparent mass changes caused by gas exchange

Learning Objectives

• Identify the hierarchy from cells through tissues, organs, and organ systems
• Explain how specialized cells contribute to organ-level function
• Describe the structural role of extracellular matrix in tissues+ Show more

Learning Objectives

• Understand the organization of different tissue types and their cellular features.
• Identify the functions related to epithelial, connective, muscle, and nervous tissues.
• Link microscopic features of tissues to their roles in organ systems.+ Show more

Learning Objectives

• Understand the concepts of mean, median, and mode and their appropriate contexts of use.
• Compare and contrast how different measures of central tendency respond to skewed data, outliers, and multimodality.
• Explore how the choice of a central tendency relates to assumptions about data distribution and underlying processes.+ Show more

Learning Objectives

• Describe how electrons are distributed among energy levels and orbitals in an atom.
• Explain the significance of valence electrons in chemical reactivity and bonding.
• Understand the shell filling order and its relation to periodic trends.+ Show more

Learning Objectives

• Explain the three core statements of cell theory and describe how new cells arise from existing cells.
• Compare unicellular and multicellular organization and connect cell specialization to organism function.
• Differentiate prokaryotic and eukaryotic cells by identifying key structural features and their effects on cellular processes.

Learning Objectives

• Identify major organelles involved in cell maintenance
• Understand the functions of organelles in energy transfer, synthesis, and detoxification
• Explain how organelles cooperate within the cell+ Show more

Learning Objectives

• Explain how Newton’s three laws relate forces to changes in motion
• Predict the motion of an object using net force, inertia, and action-reaction pairs
• Analyze real-world scenarios (sports, vehicles, collisions) using the correct law

Learning Objectives

• Understand different types of molecular arrangements in solids
• Identify properties associated with ionic, covalent, and molecular lattices
• Relate particle organization to material properties like melting point, conductivity, and hardness+ Show more

Learning Objectives

• Understand the concept of inertia and objects that follow or resist change in motion.
• Identify examples of Newton's First Law in everyday life.
• Describe how objects tend to stay at rest or in uniform motion unless acted upon by an external force.

Learning Objectives

• Understand how the arrangement of particles affects the properties of different types of solids.
• Identify the differences between ionic lattices, covalent networks, and molecular solids based on their structure and properties.
• Analyze how electrical forces influence melting point, conductivity, hardness, and solubility in various materials.+ Show more

Learning Objectives

• Analyze the societal uses and benefits of common chemicals in household and industrial applications.
• Assess the potential risks and environmental impacts associated with chemical exposure and disposal.
• Investigate strategies for safe handling, regulation, and alternatives to hazardous chemicals.+ Show more

Learning Objectives

• Understand the concepts of heat transfer and work in physical and chemical changes.
• Identify pathways of energy transfer during different processes.
• Explain how energy flows between a system and its surroundings through heat and work.+ Show more

Learning Objectives

• Explain how chemical reactions involve changes in potential energy and kinetic energy when bonds break and form
• Distinguish endothermic and exothermic processes using enthalpy change (ΔH) and energy diagrams
• Use bond strength ideas and example reactions (such as methane combustion) to justify whether energy is released or absorbed+ Show more

Learning Objectives

• Explain how carbon moves among the atmosphere, biosphere, oceans, and geosphere using major fluxes.
• Describe how processes such as photosynthesis, respiration, dissolution, sedimentation, and fossil fuel formation connect different carbon reservoirs.
• Use residence time and flux ideas to interpret how anthropogenic CO2 emissions perturb the natural carbon budget.

Learning Objectives

• Define chemical properties as tendencies of matter to undergo specific chemical changes.
• Identify evidence of chemical change using observations such as gas production, precipitate formation, and permanent color change.
• Explain how examples like iron rusting and methane combustion show formation of new substances and energy exchange.

Learning Objectives

• Identify major eukaryotic organelles and describe their functions.
• Connect organelle structure and composition to their cellular roles.
• Understand how organelles collaborate within different tissue types.

Learning Objectives

• Explain how range, interquartile range (IQR), variance, and coefficient of variation (CV) measure variability and what each metric reveals.
• Use variability metrics to compare datasets, interpret overlapping distributions, and evaluate confidence in estimates.
• Connect quantified variability to sampling design, heterogeneity across groups, and expectations from theoretical models.

Learning Objectives

• Use symptom descriptions, circuit topology, and measurements to infer likely electrical fault types (open, short, degraded components).
• Explain how voltage and current readings relate to fault conditions and circuit paths.
• Select and justify the most probable failure mode based on diagnostic evidence.

Learning Objectives

• Explain the components of an atom, including protons, neutrons, and electrons.
• Describe electron configurations and energy levels.
• Understand how the periodic table organizes elements based on valence electrons and properties.+ Show more

Learning Objectives

• Explain how natural selection acts on heritable traits over generations.
• Describe the role of selective pressure and fitness in changing populations.
• Identify an adaptive trade-off and give an example of camouflage or resilience.

Learning Objectives

• Understand how potential and kinetic energy change during chemical reactions.
• Differentiate between endothermic and exothermic processes.
• Interpret energy diagrams and relate them to molecular interactions.+ Show more

Learning Objectives

• Assess how device ratings and load demands affect safe and effective electrical system choices.
• Identify appropriate protective measures (fuses, circuit breakers, grounding, and GFCI) for common electrical applications.
• Evaluate energy efficiency and environmental impact when selecting an electrical application for a given setting.

Learning Objectives

• Understand the basic properties of solids
• Describe how solids maintain shape and volume
• Identify examples of solids in the environment

Learning Objectives

• Explain how organelles coordinate transport of genetic information and proteins within a cell.
• Describe how mitochondria, lysosomes, and peroxisomes work together to support energy use and homeostasis.
• Use cause-and-effect reasoning to predict outcomes when specific organelle functions are disrupted.

Learning Objectives

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

Learning Objectives

• Define physical properties as observable or measurable characteristics that do not change a substance’s chemical identity.
• Identify and use examples of physical properties such as density, melting point, boiling point, colour, hardness, and conductivity.
• Distinguish intensive properties from extensive properties and explain why that distinction matters for comparing materials.

Learning Objectives

• Describe dissolution using solute–solvent interactions and solvation in qualitative terms.
• Differentiate saturated, unsaturated, and supersaturated solutions using examples and qualitative concentration descriptors.
• Explain how temperature and agitation affect solubility and how concentration changes relate to separation by evaporation or crystallization.

Learning Objectives

• Identify and describe the four main categories of chemical reactions.
• Recognize characteristic reactant patterns and products for each reaction type.
• Classify chemical reactions based on their reorganization of atoms and bonds.+ Show more

Learning Objectives

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