Grade 9 Worksheets

Learning Objectives

• Draw a correct free body diagram by identifying all external forces acting on a single object
• Resolve forces into components and determine the net force and direction of acceleration
• Use Newton’s second law (net force = mass × acceleration) to predict motion qualitatively and quantitatively

Learning Objectives

• Understand what coefficients in balanced chemical equations represent
• Interpret ratios of coefficients to determine relative amounts of reactants and products
• Relate symbolic coefficients to real-world mass relationships in chemical reactions+ Show more

Learning Objectives

• Identify how audience needs influence media choices such as format, tone, length, and vocabulary
• Evaluate the credibility of evidence used in persuasive and informational media messages
• Create a coherent media message by aligning purpose, tone, visuals, and supporting details

Learning Objectives

• Define physical properties and understand their importance
• Identify common physical properties such as density, melting point, boiling point, colour, hardness, and conductivity
• Differentiate between intensive and extensive properties+ Show more

Learning Objectives

• Explain how cross-text synthesis builds one unified claim using evidence from multiple selections
• Compare how differing structures, purposes, or tones across texts affect what feels convincing
• Write an evidence-based synthesis that maintains coherence while honoring important differences

Learning Objectives

• Recognize the importance of citing sources correctly.
• Match in-text references with a complete list of sources.
• Identify proper quotation and paraphrasing acknowledgment.+ Show more

Learning Objectives

• Understand how sunlight interacts with Earth's surface
• Identify the different ways energy is transferred within Earth systems
• Explain the importance of energy balance in maintaining Earth's temperature+ Show more

Learning Objectives

• Explain how nuclear fusion in stars can create new elements over a star’s lifetime.
• Describe how explosive events in space spread matter that later forms new stars, planets, and atmospheres.
• Connect stellar life cycles to the elements found on Earth and the timing of chemical enrichment in the universe.

Learning Objectives

• Evaluate function notation such as f(x) by substituting an input value and simplifying to find the output.
• Interpret statements like f(a) = b to describe what output b corresponds to for the input a in context.
• Connect the input (the value inside f( )) and the output (the value of f( )) correctly when reading and writing function values.

Learning Objectives

• Explain what uncertainty shows on graphs and why it matters for interpreting trends
• Use overlap (or non-overlap) of uncertainty ranges to judge whether differences are likely meaningful
• Select appropriate ways to represent uncertainty, such as error bars or uncertainty bands

Learning Objectives

• Explain how predation, competition, and mutualism affect population sizes and community structure.
• Connect environmental factors (water, temperature, nutrients) to survival and growth in ecosystems.
• Interpret interaction networks to predict how changes in one population can cascade through others.+ Show more

Learning Objectives

• Explain the steps of a design cycle and how feedback leads to design improvement.
• Identify requirements and constraints in an engineering problem and connect them to evaluation criteria.
• Use evidence from testing to refine a solution and justify changes in a design.

Learning Objectives

• Explain how DNA, RNA, and protein sequence comparisons can reveal evolutionary relationships.
• Describe how molecular clocks use sequence divergence rates to estimate divergence times.
• Evaluate how comparative genomics and gene duplication patterns complement fossil and morphological evidence.

Learning Objectives

• Understand how the body maintains internal temperature through various mechanisms
• Identify functions of skin blood flow, sweating, shivering, and metabolic adjustments
• Describe the role of the hypothalamus in thermoregulation+ Show more

Learning Objectives

• Understand the definition of power as the rate of energy transfer or work per unit time.
• Learn how to measure average and instantaneous power in mechanical contexts.
• Understand what mechanical efficiency is and how it reflects useful energy output relative to input.+ Show more

Learning Objectives

• Analyze how conflicting motivations shape a character’s choices and reveal underlying purpose
• Identify how dialogue details, emotional reactions, and shifts in tone signal changes in motivation
• Support claims with textual evidence from a passage

Learning Objectives

• Write a focused thesis statement that takes a debatable position on an issue.
• Identify how an introduction frames a problem and how evidence supports a claim.
• Explain how organization and reasoning connect reasons to the thesis and lead to a conclusion.

Learning Objectives

• Explain how magnification, resolution, and contrast affect how microscope images appear.
• Compare how light microscopes and electron microscopes form magnified images.
• Interpret microscope images by using scale bars and recognizing how specimen preparation affects results.

Learning Objectives

• Identify how font, spacing, margins, and paragraph indentation improve readability in a grade level presentation.
• Select appropriate ways to use headings, titles, and paragraph structure to help readers locate claims and sections.
• Apply correct placement and formatting of citations and source lists in a presentation.+ Show more

Learning Objectives

• Differentiate heat transfer from work transfer as two distinct pathways for energy movement.
• Explain how energy changes in a system can be described as coming from or going to surroundings through heat and/or work.
• Apply heat and work ideas to physical and chemical changes using correct scientific reasoning.

Learning Objectives

• Explain how body systems interact to maintain homeostasis during normal activity and acute stress.
• Describe circulation–respiration coupling and how neural and endocrine signals coordinate cardiac output.
• Use feedback mechanisms, set points, and examples (thermoregulation and acid–base balance) to predict system responses.

Learning Objectives

• Understand the importance of advocacy and inclusion for individuals on the autism spectrum.
• Identify ways communities celebrate autism acceptance through campaigns and events.
• Analyze how respectful communication and cultural awareness promote understanding.+ Show more

Learning Objectives

• Write a focused thesis that previews the main ideas an informative essay will explain
• Develop body paragraphs with relevant facts, definitions, and examples that clarify concepts
• Use evidence and transitions to explain relationships (cause and effect, compare and contrast, or steps in a process) in an objective tone+ Show more

Learning Objectives

• Explain how biodiversity supports ecosystem stability and resilience
• Describe how environmental changes can alter population sizes and species interactions
• Analyze how human activities can increase or reduce biodiversity and affect ecosystem functions

Learning Objectives

• Explain what urbanization is and describe major spatial characteristics of growing cities.
• Analyze factors that contribute to urban expansion, including economic opportunities and transportation networks.
• Interpret how density, land use, and infrastructure influence patterns of development and resource management.

Learning Objectives

• Define electric current, voltage, and resistance.
• Explain the role of these quantities in electrical systems.
• Identify units and symbols used to measure electrical quantities.+ Show more

Learning Objectives

• Explain Newton’s third law by identifying action-reaction force pairs between two interacting objects
• Describe how equal and opposite forces act on different objects and do not cancel within one object
• Use the action-reaction idea to predict motion changes in real-world scenarios such as recoiling cannons and collisions

Learning Objectives

• Explain key events and figures that helped shape Canada’s national identity
• Analyze how Indigenous peoples and early European nations contributed to Canada’s cultural development
• Describe how Canadian values such as diversity, democracy, and unity are connected to historical change

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

Learning Objectives

• Explain how relative positions of the Sun, Moon, and Earth determine Moon phases.
• Describe why eclipses require specific alignment and do not occur every month.
• Use viewing geometry and orbital tilt to predict when eclipses are more likely.

Learning Objectives

• Explain how phylogenetic trees represent hypothesized evolutionary relationships using branching patterns and common ancestors.
• Differentiate monophyletic, paraphyletic, and polyphyletic groups and predict what each implies about sampling.
• Interpret rooted vs. unrooted trees and describe how characters (including synapomorphies) help determine tree topology.

Learning Objectives

• Explain how reaction conditions (temperature, pressure, concentration, and catalysts) can change reaction rates and product outcomes.
• Connect equilibrium and kinetics to predict how a chemical system can be refined for a desired product.
• Use basic reasoning about selectivity, yield, and side reactions to design reaction conditions in closed systems.

Learning Objectives

• Understand how gene expression influences physical traits during development
• Identify roles of regulatory networks and epigenetic mechanisms
• Link gene regulation to phenotypic diversity and evolutionary patterns+ Show more

Learning Objectives

• Understand the concept of allele frequency and genetic variation
• Learn about Hardy-Weinberg equilibrium assumptions
• Explore genetic drift, bottlenecks, and founder effects+ Show more

Learning Objectives

• Analyze media messages to assess clarity of purpose
• Identify tone and credibility in media content
• Evaluate supporting evidence and visual claims+ Show more

Learning Objectives

• Identify common signs of addictive activities.
• Recognize triggers that may lead to addictive behaviours.
• Differentiate between healthy habits and addictive patterns.+ Show more

Learning Objectives

• Understand the origins and evolution of Arbor Day as a celebration promoting tree planting and conservation.
• Learn about the significance of forests in environmental health and cultural traditions.
• Recognize the role of community involvement in ecological preservation.+ Show more

Learning Objectives

• Explain how conservation of matter is used to interpret chemical reactions.
• Balance simple chemical equations by matching the number of atoms of each element on both sides.
• Interpret reaction coefficients as particle ratios and justify when coefficients need to change.

Learning Objectives

• Understand how wind energy contributes to renewable power sources.
• Identify concepts related to grid balancing with intermittent energy sources.
• Explain the environmental and economic impacts of renewable energy integration.

Learning Objectives

• Identify major organelles of eukaryotic cells
• Understand the functions of different cell structures
• Relate cell structure features to their specific functions+ Show more

Learning Objectives

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

Learning Objectives

• Characterize physical changes as alterations in state or form that do not change chemical identity.
• Distinguish reversible and irreversible physical transformations using everyday examples.
• Explain how energy transfer accompanies phase changes and how it relates to observable macroscopic changes.+ Show more

Learning Objectives

• Identify common Greek and Latin roots and explain how they contribute to word meaning.
• Determine how prefixes and suffixes change or refine the meaning of a root in context.
• Use root meanings to interpret academic vocabulary in informational and argumentative writing.

Learning Objectives

• Define evolution and explain how allele frequencies can change over generations
• Identify and compare the mechanisms of natural selection and genetic drift
• Describe how mutation and gene flow contribute to genetic variation and evolutionary change

Learning Objectives

• Explain how net force, mass, and acceleration are related using Newton’s second law
• Distinguish inertial mass from gravitational effects (weight) in real situations
• Use proportional reasoning to predict how acceleration changes when mass changes for the same net force

Learning Objectives

• Define net force and explain its significance in motion.
• Identify forces acting on an object and determine their vector sum.
• Understand how balanced and unbalanced forces affect motion.+ Show more

Learning Objectives

• Envision sustainable community models that address environmental challenges.
• Assess ecological principles and ethical decision-making in community planning.
• Develop critical thinking and creativity in designing future habitats.+ Show more