Grade 9 Worksheets

Learning Objectives

• Understand the concept of the Big Bang as the origin of the universe.
• Explore evidence supporting the expansion of the universe.
• Learn about the cosmic microwave background and its significance.+ Show more

Learning Objectives

• Understand the concept of energy profiles for chemical reactions.
• Identify exothermic and endothermic reactions from energy diagrams.
• Describe the significance of activation energy and transition states.+ Show more

Learning Objectives

• Understand the importance of mental health and well-being.
• Identify ways to promote mental wellness in communities.
• Reflect on personal emotional resilience and cultural perspectives.+ Show more

Learning Objectives

• Explain how multiple molecular and cellular processes create heritable genetic variation.
• Describe how changes in DNA sequence and chromosome structure can affect gene expression and proteins.
• Connect individual genetic changes to population-level variation and shifts in allele frequencies.

Learning Objectives

• Understand the conservation of matter in chemical reactions
• Identify reactants and products in chemical equations
• Learn the importance of balancing chemical equations+ Show more

Learning Objectives

• Explain how inherited traits are transmitted through genetic mechanisms.
• Describe the process of meiosis and how it contributes to genetic variation.
• Identify sources of genetic diversity such as chromosome combinations and mutations.+ Show more

Learning Objectives

• Explain how net force is found by vector addition of forces and how its direction relates to acceleration.
• Determine motion outcomes (accelerate, decelerate, or remain in equilibrium) using net force and friction/air resistance.
• Solve and interpret quantitative net force and acceleration relationships for real-world Alberta scenarios.

Learning Objectives

• Understand mechanisms of reproductive isolation that lead to speciation.
• Describe models of allopatric and sympatric speciation with examples.
• Explain the role of hybrid zones, polyploidy, and adaptive radiation in speciation.+ Show more

Learning Objectives

• Understand the importance of proper device ratings for safe electrical systems.
• Identify safety measures necessary for residential wiring.
• Recognize different electrical device functions and appropriate protective measures.+ Show more

Learning Objectives

• Understand the concept of work as energy transfer due to force and distance
• Identify situations where work is done on an object
• Explain how work affects the kinetic energy of an object+ Show more

Learning Objectives

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

Learning Objectives

• Explain how runoff, erosion, transport, and deposition shape Earth’s surface.
• Interpret hydrologic evidence (discharge records, sediment load, and watershed maps) to support claims.
• Describe how hydrologic change can occur over short storm timescales and long landscape evolution timescales.+ Show more

Learning Objectives

• Understand the concept of chemical reactions and how matter is conserved.
• Identify reactants and products in chemical equations.
• Recognize energy changes during chemical reactions, including exothermic and endothermic processes.+ Show more

Learning Objectives

• Describe the basic properties of Earth's magnetic field.
• Explain how a compass indicates direction based on Earth's magnetism.
• Identify regional variations in magnetic declination.+ Show more

Learning Objectives

• Identify the characteristics of divergent plate boundaries
• Explain how seafloor spreading occurs at mid-ocean ridges
• Describe evidence supporting plate tectonics, such as magnetic stripes+ Show more

Learning Objectives

• Define unbalanced forces and differentiate them from balanced forces.
• Explain how net force influences the motion of objects.
• Identify real-world examples of unbalanced forces.+ Show more

Learning Objectives

• Explain how contact and field forces contribute to the net external force on an object.
• Use Newton’s second law ideas to predict how changing net force affects acceleration and motion.
• Interpret and construct force diagrams (free-body reasoning) for common scenarios such as inclines and tension systems.

Learning Objectives

• Understand the different types of eclipses and how they occur
• Identify the celestial bodies involved in solar and lunar eclipses
• Explain the role of orbital inclination and paths of totality in eclipse visibility+ Show more

Learning Objectives

• Explain how birth/reproduction, death/mortality, immigration, and emigration change population size over time
• Differentiate density-dependent and density-independent factors affecting population growth
• Connect population-level changes to carrying capacity and community structure

Learning Objectives

• Identify how paleoclimate proxies from ice cores, tree rings, marine sediments, and speleothems record past environmental conditions.
• Explain how isotopic ratios, growth increments, and microfossil assemblages are used to infer temperature and precipitation changes.
• Describe how age models and uncertainty help connect proxy records to climate patterns such as glacial-interglacial cycles.

Learning Objectives

• Develop imaginative storytelling skills centered on humorous and April Fools' themes.
• Enhance vocabulary related to humor, deception, and social sensitivities.
• Understand ethical considerations in pranks and deception in social contexts.+ Show more

Learning Objectives

• Explain how electrons fill energy levels and orbitals using electron configuration rules.
• Identify valence electrons and predict how they affect reactivity and ion formation.
• Use electron configuration ideas to connect periodic trends (atomic size and ionization energy) to shell structure.

Learning Objectives

• Classify chemical reactions into synthesis, decomposition, single displacement, double displacement, and combustion categories
• Connect each reaction category to typical reactant patterns and characteristic products
• Use particle/bond/ion ideas to predict likely products and check consistency with redox trends

Learning Objectives

• Explain how gravitational interactions between the Moon and Sun, along with orbital motion effects, create tides
• Differentiate spring tides and neap tides based on the alignment of the Moon and Sun
• Analyze how local coastline shape, ocean depth, and resonant basins influence tidal range and current speed+ Show more

Learning Objectives

• Explain how differences in developmental timing and gene regulation can produce phenotypic diversity
• Describe how regulatory networks and epigenetic modulation can constrain or redirect evolutionary outcomes
• Use comparative developmental evidence to connect genetic variation to trait expression and predict likely phenotypic trajectories under selection

Learning Objectives

• Explain how chemical properties (such as stability and solubility) influence environmental persistence and exposure.
• Assess benefits and risks of common chemicals by tracing routes of exposure and measurable impacts.
• Apply safe-handling, disposal, and alternative-selection strategies to reduce health and environmental harm.+ Show more

Learning Objectives

• Describe the structure of nephrons in the kidney.
• Explain how blood is filtered in the glomerulus.
• Identify the processes of reabsorption, secretion, and urine concentration.+ Show more

Learning Objectives

• Explain the role of ATP in cellular energy transfer.
• Describe how catabolic and anabolic reactions are coupled in energy metabolism.
• Compare the electron transport chains in photosynthesis and respiration.+ Show more

Learning Objectives

• Understand the wave-like behavior of light, including phenomena such as interference, diffraction, and polarization.
• Explain the particle-like behavior of light, especially in terms of the photoelectric effect.
• Describe how the dual wave-particle nature of light links energy, frequency, and electromagnetic spectrum observations.

Learning Objectives

• Describe how photosynthesis converts light energy into chemical energy in chloroplasts.
• Identify the inputs and outputs of the light-dependent reactions and the Calvin cycle.
• Explain how compartmentalization within chloroplasts supports ATP and NADPH production and use.+ Show more

Learning Objectives

• Identify common sources of uncertainty in scientific measurements and models.
• Explain how experimental error and model limitations affect confidence in results.
• Distinguish between true values, observed values, and the role of uncertainty ranges.

Learning Objectives

• Differentiate physical changes from chemical changes using evidence about new substances.
• Explain how phase and form can change while conserving the identity of the material.
• Identify common examples of reversible physical changes in everyday and engineered contexts.

Learning Objectives

• Interpret displacement–time, velocity–time, and acceleration–time graphs by relating slope and area to physical meaning
• Use graphing conventions (axis choice, labels, units) to compare different motion profiles
• Explain how changing acceleration appears on graphs, including curved segments and direction changes

Learning Objectives

• Identify natural factors that influence shoreline change
• Recognize human activities impacting coastal erosion
• Understand the processes of sediment transport and shoreline response+ Show more

Learning Objectives

• Explain how trophic levels (producers, consumers, decomposers) connect through feeding relationships in food chains and webs.
• Describe how energy flow and matter cycling move through trophic groups.
• Evaluate how trophic efficiency and trophic cascades affect ecosystem productivity and species abundance.

Learning Objectives

• Explain how simple machines transfer forces to reduce effort or change the direction of a force
• Compare ideal mechanical advantage (IMA) and practical mechanical advantage (PMA) using friction and support geometry
• Use the relationships between input force, load, and displacement to predict which machine provides an advantage+ Show more

Learning Objectives

• Explain the processes of transcription and translation in gene expression.
• Identify the roles of key molecules such as DNA, mRNA, tRNA, and ribosomes.
• Describe how regulation influences gene expression at different stages.+ Show more

Learning Objectives

• Differentiate random uncertainty from systematic error using measurement scenarios
• Use uncertainty and appropriate significant figures to judge whether measurements agree
• Recognize how instruments, calibration, and conditions affect measurement results+ Show more

Learning Objectives

• Understand different types of graphs and tables used in data representation
• Interpret data from bar graphs and line graphs effectively
• Identify key features of graphs such as trends, outliers, and patterns+ Show more

Learning Objectives

• Explain how moisture, lifting, and cooling lead to cloud formation through condensation.
• Use relative humidity to describe how close air is to saturation and predict condensation likelihood.
• Connect atmospheric stability and vertical motion to the appearance and thickness of different cloud types.+ Show more

Learning Objectives

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

Learning Objectives

• Interpret seismic waveforms to identify different wave types.
• Distinguish between P-waves and S-waves in seismic data.
• Understand how travel-time curves help locate earthquake epicenters.+ Show more

Learning Objectives

• Explain how plate convergence and continental collision can fold, thicken, and uplift crust to form mountains.
• Identify key mechanisms of mountain building, including thrust faulting, crustal shortening, and magmatic intrusion.
• Describe how weathering and erosion transport sediments and how rock and structure patterns reveal tectonic history.

Learning Objectives

• Explain what an ecological niche includes (resources, space, role in energy flow, and tolerance to conditions).
• Use niche concepts to predict how competition and environmental change can reorganize communities.
• Describe how niches support coexistence or competition, affecting which organisms persist in an ecosystem.

Learning Objectives

• Differentiate divergent, convergent, and transform plate boundaries based on plate motion and typical landforms.
• Explain how each boundary type relates to earthquakes, volcanism, and crustal deformation.
• Use spatial patterns of trenches, ridges, arcs, and fault zones to infer boundary processes over geologic time.

Learning Objectives

• Explain mechanical advantage as a ratio of load force to input force and connect it to how machines move loads.
• Calculate and interpret mechanical advantage for lever and pulley systems, noting the force–distance trade-off.
• Use real-world examples (e.g., bale lifters and scaffold hoists) to predict how design choices affect safety and required input effort.

Learning Objectives

• Explain conservation of energy using system boundaries and energy transfers for closed and open systems.
• Use energy accounting (reservoirs and transfers) to reason about changes in total energy.
• Interpret energy flow ideas and apply them to electrical and chemical process examples.+ Show more

Learning Objectives

• Explain how surface currents and thermohaline circulation redistribute heat across the oceans
• Describe how gyres, upwelling zones, and boundary currents influence regional climate and ecosystems
• Evaluate how changes in ocean circulation can create feedbacks that affect warming and extreme weather