Grade 9 Worksheets

Learning Objectives

• Explain how hydrostatic and oncotic pressures affect glomerular filtration
• Describe selective reabsorption and secretion along nephron tubules
• Explain how countercurrent multiplication concentrates urine+ Show more

Learning Objectives

• Explain how insulin and glucagon maintain blood glucose homeostasis
• Describe how thyroid hormones influence metabolic rate in cells
• Model how hormone half-life affects response duration+ Show more

Learning Objectives

• Explain how solute-solvent interactions support dissolution
• Differentiate saturated, unsaturated, and supersaturated solutions
• Explain how temperature affects solubility for many soluble solids+ Show more

Learning Objectives

• Describe particle arrangements and motion in solids, liquids, and gases
• Explain diffusion using microscopic particle motion
• Relate gas pressure to particle collisions with container walls+ Show more

Learning Objectives

• Explain how particle-wall collisions produce measurable gas pressure
• Describe how volume changes affect gas particle collision frequency
• Explain how temperature changes affect particle motion and pressure+ Show more

Learning Objectives

• Calculate work using force, displacement, and angle
• Identify the force component parallel to displacement
• Distinguish constant-force and variable-force work+ Show more

Learning Objectives

• Interpret position–time graph slope as velocity
• Interpret velocity–time graph slope as acceleration
• Determine displacement from velocity–time graph area+ Show more

Learning Objectives

• Identify action–reaction force pairs acting on different objects
• Explain equal-magnitude and opposite-direction forces in interaction pairs
• Apply force-pair reasoning to propulsion and collisions+ Show more

Learning Objectives

• Explain how land use changes watershed runoff and infiltration
• Describe how erosion affects sediment load and turbidity
• Interpret discharge and turbidity as watershed condition indicators+ Show more

Learning Objectives

• Identify diagnostic physical and chemical properties of common minerals
• Explain how crystal structure influences mineral hardness and cleavage
• Relate mineral composition to specific gravity and identification+ Show more

Learning Objectives

• Explain why chemical equations must conserve atoms and mass
• Interpret coefficients as relative amounts of substances
• Connect symbolic formulas to particle-level atom accounting+ Show more

Learning Objectives

• Explain how partial pressure gradients drive pulmonary gas diffusion
• Describe how surface area and membrane thickness affect diffusion
• Identify how ventilation and dead space influence gas exchange+ Show more

Learning Objectives

• Explain how green infrastructure, emergency preparedness, adaptive land use, and social networks work together to reduce community risk.
• Describe how climate change, aging infrastructure, and socio-economic disparities can increase vulnerability and affect long-term well-being.
• Analyze how governance, funding mechanisms, and local/traditional knowledge influence the effectiveness of resilience strategies.

Learning Objectives

• Explain the wave and photon descriptions of electromagnetic radiation.
• Relate frequency to photon energy and their interaction with matter.
• Identify characteristic phenomena such as atomic emission, absorption lines, and spectral attenuation.+ Show more

Learning Objectives

• Explain mechanical advantage as a ratio of load force to input force and interpret what the ratio means physically.
• Calculate and compare mechanical advantage for lever systems and pulley/wheel systems, including the trade-off with displacement.
• Use mechanical advantage to evaluate realistic equipment examples (e.g., bale lifters and scaffold hoists) and discuss safety-related design choices.

Learning Objectives

• Explain how human actions can affect multiple environmental systems (air, water, and land) through interconnected mechanisms.
• Evaluate environmental solutions by considering benefits, mechanisms of harm, side effects, feasibility, and uncertainty in predictions.
• Use evidence-based reasoning to compare tradeoffs among competing constraints in pollution control and resource use.

Learning Objectives

• Identify rhetorical devices such as repetition, contrast, and figurative language in analytical and persuasive writing.
• Explain how sentence rhythm and purposeful wording create emphasis or impact without harming clarity.
• Select the best interpretation of a device’s effect and demonstrate understanding in short written responses.

Learning Objectives

• Understand how solar energy impacts Earth's climate.
• Identify the factors that influence short-term and long-term climate variability.
• Explain the role of Earth's energy balance in maintaining climate stability.

Learning Objectives

• Explain how permafrost thaw can destabilize northern infrastructure and alter drainage patterns.
• Describe interrelated ecological and social consequences of permafrost thaw, including changes in vegetation and carbon release.
• Use the ideas of continuity and change to compare millennia of frozen ground with rapid contemporary warming.+ Show more

Learning Objectives

• Assess how device ratings and intended function determine appropriate electrical system choices
• Identify protective measures that reduce electrical hazards in different contexts
• Evaluate energy efficiency and environmental impact when selecting electrical applications

Learning Objectives

• Explain how uncertainty and error arise in scientific measurement and why repeated results vary.
• Differentiate random uncertainty from systematic error and predict how each affects data.
• Use significant figures and uncertainty reporting to compare measurements fairly.

Learning Objectives

• Explain how compound machines combine simple machines to change force and distance
• Calculate ideal mechanical advantage using force and displacement relationships
• Differentiate ideal mechanical advantage from real performance after losses+ Show more

Learning Objectives

• Understand the structure and purpose of evidence-based reasoning in scientific inquiry.
• Identify how empirical observations, quantitative analyses, and model outputs are linked through evidence chains.
• Evaluate the standards of sufficiency, consistency, and treatment of competing explanations in evidence chains.+ Show more

Learning Objectives

• Explain how gravity from the Moon and Sun causes ocean tides through differences in gravitational pull across Earth.
• Describe how the geometry of the Earth–Moon–Sun system produces predictable tidal cycles over a lunar day.
• Analyze how changing alignments affect the size of tides (spring vs. neap tides).

Learning Objectives

• Understand different forms of energy involved in conversion processes
• Identify real-world examples of energy transformations
• Explain the conservation of energy in various systems+ Show more

Learning Objectives

• Understand the different phase changes: melting, vaporization, sublimation, and condensation.
• Explain how energy transfer affects particle motion during phase changes.
• Identify temperature and energy patterns during heating and cooling scenarios.+ Show more

Learning Objectives

• Describe the main steps involved in glycolysis.
• Identify the key intermediates and enzyme-catalyzed reactions in glycolysis.
• Explain the energy yield and highlights of glycolysis under aerobic and anaerobic conditions.+ Show more

Learning Objectives

• Describe how particle arrangement and motion relate to solids, liquids, and gases
• Explain phase transitions using temperature, pressure, and energy changes
• Predict how environmental conditions affect the state of a substance+ Show more

Learning Objectives

• Explain how atmospheric, hydrological, and tectonic processes can cause different natural hazards.
• Analyze how cause-and-consequence relationships link environmental conditions to hazard frequency and intensity.
• Evaluate how land-use change, climate variability, and vulnerability influence regional safety and infrastructure.+ Show more

Learning Objectives

• Explain the historical context of ANZAC Day in relation to World War I and the Gallipoli campaign.
• Analyze how primary sources (soldiers’ letters and government documents) help us understand soldiers’ experiences.
• Describe the significance of remembrance ceremonies and how they shaped national identities in Australia and New Zealand.

Learning Objectives

• Explain how the Moon’s position in its orbit changes which part of its sunlit half we see from Earth.
• Describe the geometry of solar and lunar eclipses and why they require near alignment of the Sun, Earth, and Moon.
• Use the concept of orbital tilt and nodes to predict when eclipses are more likely to occur.

Learning Objectives

• Understand the formation and features of subduction zones.
• Identify the geological processes involved in subduction.
• Explain the impact of subduction zones on seismic activity and topography.+ Show more

Learning Objectives

• Identify different types of genetic mutations
• Understand how mutation affects genetic diversity
• Recognize sources such as recombination, gene flow, and chromosomal rearrangements+ Show more

Learning Objectives

• Understand the processes of stellar evolution and nuclear fusion.
• Recognize how stars produce various elements over their life cycles.
• Explain how matter from explosive stellar events contributes to new star and planet formation.+ Show more

Learning Objectives

• Explain how changing magnetic flux induces an emf in a conductor.
• Use Lenz’s law to predict the direction of the induced emf (and current).
• Relate transformer operation to step-up/step-down voltage changes in power systems.

Learning Objectives

• Identify the basic functions of a cell and its components.
• Describe the roles of different organelles within a cell.
• Explain how cell structure relates to its function.+ Show more

Learning Objectives

• Explain how climate, soil types, and water availability influence what crops and farming methods can be used in an agricultural region.
• Analyze how agricultural land use varies spatially and how those patterns shape rural economies and settlement locations.
• Use geographic reasoning to connect physical factors and technological practices to real-world food production and resource use.

Learning Objectives

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

Learning Objectives

• Describe Earth’s main concentric layers and how density, temperature, and pressure change with depth.
• Explain the mechanical differences between the lithosphere and the asthenosphere.
• Use evidence from seismic waves and gravity to infer Earth’s internal structure.+ Show more

Learning Objectives

• Explain the roles of emperors, shoguns, daimyo, and samurai in medieval Japan’s feudal hierarchy.
• Analyze how loyalty, martial skill, and Confucian principles influenced governance and cultural practices.
• Describe how feudal social structure affected regional rule, economic organization, and stability.

Learning Objectives

• Understand the four main types of chemical reactions: synthesis, decomposition, single displacement, double displacement, and combustion.
• Identify reactants and products in synthesis reactions.
• Differentiate between various reaction patterns based on reactants and products.

Learning Objectives

• Understand the concept of allele frequencies and how they vary in populations
• Learn about the Hardy-Weinberg equilibrium as a model for genetic stability
• Explore factors that cause changes in genetic variation, such as selection, drift, migration, and mutation+ Show more

Learning Objectives

• Understand the types and propagation characteristics of seismic waves.
• Learn how earthquake focal mechanisms reveal fault types and stress orientations.
• Relate seismic wave travel times to Earth's interior models and methods for locating epicentres.+ Show more

Learning Objectives

• Distinguish between series and parallel circuit arrangements using current and voltage behavior
• Predict how changes in components affect current, voltage, and brightness in series vs. parallel circuits
• Use basic reasoning to evaluate reliability and load distribution in real-world circuit choices

Learning Objectives

• Understand different types of signal modulation such as amplitude, frequency, and phase modulation.
• Compare schemes like pulse-code modulation and analog amplitude modulation.
• Analyze the impact of modulation schemes on bandwidth, fidelity, and noise susceptibility.+ Show more

Learning Objectives

• Understand the fundamental principles of redox reactions and electron transfer.
• Identify oxidation and reduction processes and their changes in oxidation states.
• Learn to track oxidation states to determine oxidizing and reducing agents.+ Show more

Learning Objectives

• Explain how chemical elements (carbon, nitrogen, and phosphorus) cycle through ecosystems between living things and the physical environment.
• Describe how processes like respiration, decomposition, and nutrient uptake connect trophic levels.
• Distinguish between how energy flows through ecosystems and how matter cycles in ecosystems.

Learning Objectives

• Define recommendation, preference, suggestion, and algorithm accurately
• Explain how recommendation systems rank items using data patterns
• Differentiate content-based and collaborative filtering approaches+ Show more