Grade 9 Worksheets

Learning Objectives

• Interpret speed-time and distance-time data to infer acceleration and its direction.
• Use changes in speed over equal time intervals to determine whether acceleration is roughly constant or changing.
• Explain how the shape or slope of data curves relates to acceleration.

Learning Objectives

• Understand the concept of limiting reactants and how they determine maximum product formation.
• Calculate theoretical yield using molar ratios and molar masses.
• Differentiate between actual yield and theoretical yield and compute percent yield.+ Show more

Learning Objectives

• Explain how genetic drift changes allele frequencies through chance events, especially in small populations
• Identify how bottlenecks and founder effects can reduce genetic diversity and alter evolutionary outcomes
• Compare the roles of genetic drift, natural selection, and gene flow in shaping allele frequencies

Learning Objectives

• Explain why chemical equations must be balanced to conserve atoms and mass
• Interpret balanced equations as particle-level ratios represented by coefficients
• Use reactant and product formulas to identify which substances are consumed and produced

Learning Objectives

• Identify common types of malware such as viruses, spyware, and ransomware.
• Apply safe-device habits to reduce the risk of malware infection.
• Use correct cybersecurity vocabulary when describing protection strategies.

Learning Objectives

• Define cloud computing using remote servers and online services
• Explain how online storage keeps files available across devices
• Describe how synchronization maintains consistent file versions+ Show more

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 balanced chemical equations and mole ratios connect reactant amounts to product amounts.
• Use molar mass to convert between mass (grams) and amount of substance (moles).
• Apply conservation of mass reasoning to interpret why atoms are conserved in chemical reactions.

Learning Objectives

• Explain the relative positions needed for solar and lunar eclipses.
• Describe how orbital inclination limits eclipse frequency and helps predict eclipse paths.
• Use eclipse geometry to compare shadow direction and the visibility of totality.

Learning Objectives

• Explain how punctuation (end marks, commas, colons, semicolons, and dashes) clarifies meaning and tone.
• Identify and revise common punctuation errors, including run-ons and missing/incorrect commas.
• Use punctuation to support reader understanding of sentence boundaries and relationships between clauses.

Learning Objectives

• Identify the functions of key cell organelles involved in genetic information flow and protein trafficking.
• Understand how different organelles coordinate to maintain cellular homeostasis.
• Explain the roles of mitochondria, lysosomes, and peroxisomes in energy production and recycling processes.+ Show more

Learning Objectives

• Identify how language choices (repetition, contrast, and structure) create effects in a text.
• Evaluate whether statements about purposeful writing are true or false based on the passage.
• Select the best answer that explains how sentence patterns shape meaning and tone.+ Show more

Learning Objectives

• Explain how explanatory models connect observable evidence to causal mechanisms within defined limits.
• Identify ways scientists refine models by adjusting assumptions, updating parameters, and revising relationships.
• Evaluate how new evidence changes a model and improves agreement with observations.+ Show more

Learning Objectives

• Explain major sources of genetic variation, including mutation, recombination during meiosis, gene flow, and chromosomal rearrangements.
• Describe how different mechanisms can increase or decrease genetic diversity in populations.
• Use real-world examples to predict how genetic variation affects evolutionary change and responses to environmental pressures.

Learning Objectives

• Identify and contrast static and kinetic friction, including how each relates to surface properties and normal force
• Explain how fluid drag depends on velocity, cross-sectional area, and medium density, including low-speed (linear) vs high-speed (quadratic) regimes
• Use coefficients of friction and resistive-force ideas to describe net force and energy dissipation in real situations

Learning Objectives

• Explain how Earth’s magnetic field originates and why it behaves like a giant dipole
• Describe how magnetic declination and dip affect navigation, mapping, and compass readings in real regions
• Interpret how auroras and ionospheric phenomena relate to charged particles and Earth’s magnetic environment+ Show more

Learning Objectives

• Identify key factors that contribute to regional development, including resources, infrastructure, and policy.
• Explain how geographic constraints and opportunities influence economic growth and settlement patterns.
• Evaluate how infrastructure and governance affect quality of life in different regions.

Learning Objectives

• Understand how the circulatory and respiratory systems work together to supply oxygen and remove carbon dioxide.
• Analyze the feedback mechanisms involved in homeostasis, such as thermoregulation and acid-base balance.
• Describe how neural and endocrine responses coordinate to maintain internal stability during activity and stress.

Learning Objectives

• Identify common sources of systematic and random error, including instrument bias, sampling limitations, confounding, and model mis-specification.
• Use evidence such as cross-method comparisons and residual patterns to detect potential bias or model problems.
• Explain how sensitivity analyses and quantified uncertainty affect the robustness of conclusions and the comparison of alternative explanations.

Learning Objectives

• Explain how the particulate model describes solids, liquids, and gases using particle motion and spacing
• Use particle ideas to predict changes in diffusion, pressure, and temperature
• Identify how particle collisions relate to energy transfer and pressure

Learning Objectives

• Use connecting words and phrases to show addition, contrast, cause, and sequence in writing.
• Maintain consistent referents for nouns and pronouns to improve clarity.
• Strengthen coherence by matching sentence beginnings and endings to reduce abrupt shifts.

Learning Objectives

• Understand the hierarchical structure and purposes of biological classification systems.
• Identify shared traits and evolutionary relationships used in classifying organisms.
• Differentiate between traditional taxonomy and modern phylogenetic approaches.+ Show more

Learning Objectives

• Identify the key resource-based industries that contributed to regional economic development in Canada.
• Understand the impact of forestry on regional identities and economic growth.
• Analyze the effects of industrialization on land use and Indigenous participation in regional economies.+ Show more

Learning Objectives

• Understand the concept of similar figures and their properties.
• Apply ratio and proportion techniques to solve real-world problems.
• Use scale factors to determine lengths and measurements in similar figures.+ Show more

Learning Objectives

• Explain the three main ideas of cell theory and how they connect to living organisms
• Compare unicellular and multicellular organization in terms of structure and function
• Distinguish prokaryotic and eukaryotic cell features and relate structure to function+ Show more

Learning Objectives

• Describe the nature and effects of static and kinetic friction.
• Explain how surface properties and normal force influence friction.
• Analyze real-world examples of friction's role in motion and energy transfer.+ Show more

Learning Objectives

• Understand the fundamental principles of scaling laws and dimensional similarity.
• Apply proportional reasoning to construct models and interpret data across different scales.
• Analyze how nonlinearity and scale-dependent effects influence predictions in scientific models.+ Show more

Learning Objectives

• Explain how uncertainty can be displayed on graphs using error bars, uncertainty bands, and annotated ranges in tables.
• Interpret whether differences between conditions are meaningful by comparing overlaps (or lack of overlap) in uncertainty.
• Use uncertainty reasoning to support or question conclusions about trends in scientific data.

Learning Objectives

• Explain how neurons and synapses transmit information using action potentials and neurotransmitters
• Describe how myelination and neural circuit organization affect conduction velocity and information processing
• Compare roles of reflex arcs and autonomic pathways in maintaining coordinated organ function

Learning Objectives

• Explain the main idea of electron transport and its purpose in cells.
• Identify and use key vocabulary related to electron carriers, proton pumping, and ATP production.

Learning Objectives

• Understand how to perform addition, subtraction, multiplication, and division with integers.
• Apply integer operations to solve real-world problems involving financial transactions and temperature changes.
• Develop strategies for accurate computation and reasoning with integers.+ Show more

Learning Objectives

• Analyze key events that shaped relationships between Indigenous peoples and settlers.
• Identify factors that contributed to periods of cooperation and conflict.
• Understand the impacts of territorial disputes and resource competition on social stability.+ Show more

Learning Objectives

• Understand how atmospheric conditions influence observable weather patterns.
• Analyze relationships between temperature, humidity, wind, and pressure.
• Interpret data sets related to weather and climate variability.+ Show more

Learning Objectives

• Represent reactants and products using symbolic chemical equations
• Explain why chemical equations must be balanced to satisfy conservation of atoms
• Use balanced equations to interpret relative amounts of substances in reactions

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

• Analyze Indigenous narratives related to contact and colonization.
• Identify differences between Indigenous and settler perspectives.
• Develop awareness of the importance of Indigenous voices in history.

Learning Objectives

• Explain ecosystem services and distinguish provisioning, regulating, cultural, and supporting services.
• Analyze how biodiversity helps maintain ecosystem services such as pollination, water purification, nutrient cycling, and carbon sequestration.
• Evaluate how land-use change, pollution, and climate shifts can reduce ecosystem service capacity and alter where services are delivered.+ Show more

Learning Objectives

• Identify series and parallel components within a mixed (combined) circuit
• Calculate equivalent resistance and use it to find total current and voltage relationships
• Trace how current and voltage distribute across parallel branches in combined circuits+ Show more

Learning Objectives

• Identify relationships between words, including synonyms, antonyms, and category relationships.
• Determine how context shapes connotation and figurative meaning in academic reading.
• Analyze word parts (prefixes, suffixes, roots) to infer meaning of unfamiliar vocabulary.+ Show more

Learning Objectives

• Identify SMART goal elements and explain how they improve planning
• Evaluate statements about motivation, perseverance, and self-reflection
• Apply goal-setting strategies to personal holiday and school contexts+ Show more

Learning Objectives

• Explain how water moves through Earth’s reservoirs using evaporation, condensation, precipitation, runoff, and groundwater recharge.
• Describe how carbon shifts among the atmosphere, living things, oceans, and rocks through photosynthesis, respiration, and chemical exchange.
• Connect Earth’s radiation balance (incoming solar energy and outgoing infrared energy) to temperature, weather, and cycle rates.

Learning Objectives

• Understand the basic process of DNA replication
• Identify key terms associated with DNA replication
• Explain the roles of enzymes involved in DNA copying+ Show more

Learning Objectives

• Understand the concept of chemical reactions and bonds
• Identify reactants and products in chemical equations
• Interpret symbolic representations of reactions including state symbols and coefficients+ Show more

Learning Objectives

• Explain the purposes and key terms of treaties and how they were negotiated.
• Analyze how colonial policies affected Indigenous land rights, social structures, and sovereignty.
• Evaluate how treaties and policies contributed to displacement and ongoing conflicts, using Indigenous perspectives.

Learning Objectives

• Explain how epistasis and pleiotropy can change inheritance patterns compared with simple Mendelian ratios.
• Describe how penetrance, expressivity, linkage, and environment can affect genotype-to-phenotype outcomes.
• Analyze inheritance scenarios to predict why observed traits may not match expected Mendelian probabilities.

Learning Objectives

• Explain how water moves among atmospheric, surface, and subsurface reservoirs
• Describe how hydrologic processes affect water storage and movement
• Compare residence time and water flux across different reservoirs+ Show more

Learning Objectives

• Describe how glycolysis contributes to cellular ATP production
• Explain how the citric acid cycle transfers energy
• Explain how proton gradients drive ATP synthase+ Show more

Learning Objectives

• Explain how action potentials transmit signals through neural circuits
• Describe how synaptic transmission moves information between neurons
• Explain how myelination affects neural conduction velocity+ Show more