Grade 9 Science Worksheets

Learning Objectives

• Understand the structural differences between ionic lattices, covalent networks, and molecular solids.
• Identify how properties like melting point, electrical conductivity, hardness, and solubility reflect lattice organization.
• Compare the characteristics of ionic solids, molecular solids, and covalent network solids based on their particle arrangement and electrical forces.+ Show more

Learning Objectives

• Identify ionic bonds and understand electron transfer
• Recognize the characteristics of ionic bonds
• Differentiate ionic bonds from covalent and metallic bonds

Learning Objectives

• Understand how hormonal feedback maintains blood glucose levels.
• Identify roles of insulin and glucagon in energy balance.
• Explain negative feedback mechanisms regulating glucose.+ Show more

Learning Objectives

• Understand the differences between mixtures and solutions
• Identify the parts of a solution: solute and solvent
• Explain the concept of concentration in solutions+ Show more

Learning Objectives

• Understand the structure of DNA and its components
• Identify the organization of chromosomes within the nucleus
• Explain how DNA is packed into chromosomes and its relation to heredity+ Show more

Learning Objectives

• Define what an element is based on its atomic number and chemical symbol.
• Describe how atomic models represent atomic identity.
• Identify representative elements and understand the significance of atomic mass and notation.+ Show more

Learning Objectives

• Explain how cell organelles in eukaryotic cells support specific functions, including transport, energy production, and protein synthesis.
• Relate membrane structure and compartmentalization (folding and surface area) to metabolic rates and effective exchange.
• Connect nucleus/chromatin organization and cytoskeletal elements to how cells maintain control, shape, and transport.

Learning Objectives

• Explain how net force is found by adding forces as vectors (including direction).
• Use net force to predict changes in motion, including acceleration or equilibrium.
• Identify how opposing forces like friction and air resistance affect the resultant force.

Learning Objectives

• Understand the main types of tissues and their functions.
• Identify the structures and specialized cells of different tissue types.
• Describe how tissue organization contributes to organ function.+ Show more

Learning Objectives

• Classify forces as contact forces or non-contact forces using common examples.
• Identify the magnitude, direction, and point of application qualitatively in everyday situations.
• Describe action–reaction pairs for forces between two interacting objects.

Learning Objectives

• Identify major organelles and describe their primary functions
• Explain how compartmentalization supports efficient cellular reactions
• Explain how membrane surface area affects exchange and metabolism+ Show more

Learning Objectives

• Define and describe different types of ecosystem services including provisioning, regulating, cultural, and supporting functions.
• Explain the role of biodiversity in maintaining ecosystem services such as pollination and water purification.
• Analyze how land-use change, pollution, and climate shifts affect ecosystem service capacity and distribution.+ Show more

Learning Objectives

• Understand the functions of key cell organelles
• Describe how organelles work together in systems
• Recognize the significance of organelle cooperation for cell health

Learning Objectives

• Differentiate static friction and kinetic friction in terms of relative motion and resistance
• Describe how drag depends on speed, medium density, and cross-sectional area
• Use friction coefficients and drag regimes to reason about net force and energy dissipation

Learning Objectives

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

Learning Objectives

• Understand basic weather measurements such as temperature, humidity, wind speed, and atmospheric pressure.
• Recognize how these measurements relate to observable weather patterns like cloud formation and storm activity.
• Explore how short-term weather data can indicate daily conditions and long-term data can reveal climate trends.

Learning Objectives

• Understand the importance of controls in scientific investigations.
• Identify key safety practices to ensure reliable data collection.
• Explain how variables are managed to attribute causes to effects.+ Show more

Learning Objectives

• Explain the hierarchical relationship among cells, tissues, organs, and organ systems
• Describe how cell specialization and extracellular matrices support emergent organ functions
• Use scaling ideas (surfaces vs. volume, interfaces) to predict how physiology changes from cells to systems

Learning Objectives

• Understand the structure and function of the circulatory system
• Explain how blood transports oxygen and nutrients
• Identify key components involved in blood circulation+ Show more

Learning Objectives

• Understand the principle of conservation of mass during chemical reactions.
• Identify how gaseous products can affect apparent mass changes.
• Recognize external factors influencing mass measurements.+ Show more

Learning Objectives

• Identify main components of a phylogenetic tree
• Explain the significance of branching points and branch lengths
• Distinguish between monophyletic, paraphyletic, and polyphyletic groups+ Show more

Learning Objectives

• Explain how genes (DNA segments) can determine protein production and influence observable traits (phenotypes).
• Describe the basic steps of gene expression: transcription and translation.
• Identify how gene regulation and environmental factors can change protein amounts or functions, leading to phenotypic variation.

Learning Objectives

• Identify and describe the basic components of an atom: protons, neutrons, and electrons.
• Understand electron configurations and energy levels.
• Explain how the periodic table groups elements by valence electrons.+ Show more

Learning Objectives

• Explain how individual forces combine to determine net force, including both magnitude and direction
• Predict the direction and presence of acceleration when forces oppose each other
• Distinguish between balanced and unbalanced forces using the net force being zero or nonzero+ Show more

Learning Objectives

• Define speciation and species using key vocabulary
• Identify reproductive isolation as a barrier to interbreeding
• Explain how geographic separation can reduce gene flow

Learning Objectives

• Explain how disturbances (habitat loss, invasive species, and climate shifts) can change ecosystem interactions and stability
• Describe how feedback processes, recovery rates, and resilience influence whether an ecosystem returns to a prior state
• Use evidence from long-term population trends and community structure to reason about gradual versus rapid ecosystem shifts+ Show more

Learning Objectives

• Compare the four principal tissue classes (epithelial, connective, muscle, nervous) by describing key cellular and extracellular features.
• Explain how tissue structure (including extracellular matrix and specialized epithelia) relates to tissue and organ function.
• Differentiate muscle types by their contractile mechanisms and typical roles in the body.

Learning Objectives

• Understand the basic steps of DNA replication
• Identify key enzymes involved in DNA replication
• Describe the division of leading and lagging strands+ Show more

Learning Objectives

• Understand how kidneys regulate water and ion balance through osmoregulation.
• Identify processes such as filtration, reabsorption, secretion, and concentration in the nephron.
• Explain the role of hormones like antidiuretic hormone (ADH) and aldosterone in fluid regulation.+ Show more

Learning Objectives

• Understand the fundamental mechanisms of evolution such as natural selection, genetic drift, mutation, and gene flow.
• Explain how these mechanisms influence allele frequencies and contribute to the diversity of populations.
• Describe the roles of mutation and gene flow in introducing new traits and transferring alleles between populations.+ Show more

Learning Objectives

• Explain Newton’s second law using the relationship between net force, mass, and acceleration.
• Use vector ideas to distinguish direction of net force from direction of acceleration.
• Differentiate mass and weight and relate each to the correct SI units and contexts.

Learning Objectives

• Explain the process of electron transport in mitochondria and chloroplasts.
• Identify the role of electron carriers and proton gradients in ATP synthesis.
• Compare mitochondrial and thylakoid electron transport mechanisms.+ Show more

Learning Objectives

• Understand the basic properties of waves: frequency, wavelength, and amplitude.
• Relate wave properties to the energy carried by the wave.
• Identify wave characteristics through reading and questions.

Learning Objectives

• Understand the concepts of endothermic and exothermic reactions.
• Identify energy absorption and release during chemical processes.
• Interpret energy diagrams related to chemical bonds.+ Show more

Learning Objectives

• Describe the physical properties of solids, liquids, and gases and connect them to particle behavior.
• Explain how temperature and pressure changes cause phase transitions between states of matter.
• Use examples from the environment to predict and justify material state changes.

Learning Objectives

• Identify key details about the structure of ATP from an informational text.
• Describe how ATP contains energy-storing phosphate groups.

Learning Objectives

• Explain how urbanization, deforestation, agriculture, and infrastructure alter watershed processes such as runoff, sediment transport, nutrient flux, and groundwater recharge.
• Describe how watershed changes can affect channel morphology, flood frequency, and aquatic ecosystem health.
• Use turbidity and discharge as indicators to interpret water-quality and flow changes in a watershed.

Learning Objectives

• Explain how Earth's axial tilt influences seasons
• Describe the effects of Earth's orbit on climate and daylight
• Identify the causes of lunar phases and tides+ Show more

Learning Objectives

• Describe the particle model for solids, liquids, and gases using lattice, fluidity, and compressibility ideas.
• Explain how temperature and pressure changes cause phase transitions between states of matter.
• Interpret real-world examples (freezing, evaporation, condensation) using energy and particle motion.

Learning Objectives

• Explain how lithospheric plate motion creates divergent, convergent, and transform boundaries
• Describe how subduction and continental collision build features such as ocean basins and mountain ranges
• Use earthquake and volcanic patterns to infer plate interactions+ Show more

Learning Objectives

• Explain how orbital eccentricity, axial tilt, and precession change Earth’s incoming solar energy over long timescales.
• Describe how variations in insolation influence the growth and melting of ice sheets and seasonal patterns.
• Connect geological evidence (glacial and interglacial periods) to orbital forcing and climate feedbacks.

Learning Objectives

• Identify the key components of simple mechanical systems
• Understand the forces acting upon objects within these systems
• Apply basic principles of Newton’s laws to analyze motion+ Show more

Learning Objectives

• Represent forces as vectors with both magnitude and direction
• Resolve a force into orthogonal components and interpret what the components mean physically
• Determine the resultant (net force) using graphical and analytical vector addition+ Show more

Learning Objectives

• Explain how fusion of gametes leads to zygote formation and early development
• Compare internal and external fertilization strategies and how egg provisioning affects survival
• Describe how embryonic stages and factors like temperature and moisture influence development success in populations

Learning Objectives

• Understand the basic concepts of force and how it affects motion.
• Identify contact and non-contact forces in real-world Alberta settings.
• Explain how magnitude and direction of forces combine vectorially.+ Show more

Learning Objectives

• Explain how current and voltage behave in series and parallel sections of mixed circuits
• Simplify mixed circuits by finding equivalent resistance step-by-step
• Use Ohm’s law and branch reasoning to determine current and voltage in circuit sections+ Show more

Learning Objectives

• Identify human activities that affect biodiversity and ecosystem services.
• Describe the effects of habitat fragmentation, pollution, and resource extraction.
• Analyze how changes in species diversity influence ecosystem functions and services.+ Show more

Learning Objectives

• Explain how fertilization leads to zygote formation and early embryonic development
• Compare internal and external fertilization strategies using real-world environmental examples
• Describe how temperature, moisture, and habitat quality can influence embryonic development and reproductive success+ Show more