Grade 8 Worksheets

Learning Objectives

• Identify how figurative language (metaphors, similes, personification, and sound devices) shapes mood and tone.
• Analyze how word choice and imagery in a passage create meaning that is suggested rather than directly stated.
• Explain how specific phrases in a text support a reader’s interpretation.

Learning Objectives

• Identify the central idea of an informational text and summarize it using evidence from the passage.
• Use key supporting points to write a concise summary while preserving important relationships (such as cause and effect).
• Revise a summary to ensure it reflects what the author says and how ideas connect across paragraphs.

Learning Objectives

• Explain how net force is determined when multiple forces act on an object
• Use Newton’s second law idea (a depends on net force and mass) to predict acceleration
• Connect net force to changes in velocity, including changes in speed and direction+ Show more

Learning Objectives

• Explain why scientists use models to represent systems that are too small, too large, or too complex to observe directly
• Identify different types of scientific models (diagrams, physical replicas, simulations, and mathematical relationships) and describe what each is used for
• Use evidence to judge whether a model is useful and describe how models should be revised when new data disagree

Learning Objectives

• Explain how evaporation, condensation, precipitation, runoff, and infiltration move water through Earth systems.
• Describe how temperature and energy affect evaporation and precipitation patterns.
• Evaluate how human activities can change local water availability and environmental impacts.

Learning Objectives

• Make reasonable inferences by combining text clues with logical thinking
• Explain how evidence limits what conclusions can be supported
• Verify whether an inference fits the text by checking character actions, causes, and effects

Learning Objectives

• Use SI units appropriately for common measurements (length, mass, volume, and temperature).
• Apply unit conversions and dimensional analysis to keep units consistent in calculations.
• Distinguish precision from accuracy and report measurements using correct significant figures.+ Show more

Learning Objectives

• Understand how particle arrangements influence molecular properties such as states of matter and solubility.
• Connect molecular structure to observable outcomes like reactivity and energy transfer.
• Explain the differences between polar and nonpolar molecules and their interactions with water.+ Show more

Learning Objectives

• Explain how chemical reactions provide evidence that new substances form (color change, precipitates, and gas production).
• Apply conservation of matter to closed systems by reasoning with particle models and rearranged atoms.
• Use atomic-level ideas and balanced chemical equations to support claims about matter conservation.

Learning Objectives

• Explain what viscosity means and distinguish dynamic viscosity from kinematic viscosity.
• Relate low-viscosity and high-viscosity fluids to how they flow (laminar vs turbulent) and everyday examples.
• Describe how temperature and shear affect viscosity and predict practical consequences for pumping and lubrication.+ Show more

Learning Objectives

• Explain how quantitative measurements and qualitative observations can provide evidence for or against a design choice.
• Describe how testing criteria guide what counts as acceptable results.
• Use evidence from repeated trials to evaluate whether outcomes are likely due to chance.+ Show more

Learning Objectives

• Identify success criteria and constraints in an engineering design problem.
• Write success criteria using measurable outcomes (numbers, units, or specific targets).
• Distinguish constraints that limit materials, cost, size, time, or safety from criteria that measure performance.+ Show more

Learning Objectives

• Identify textual evidence anchors that support a theme or central idea.
• Distinguish between using an accurate quotation and an accurate paraphrase.
• Select details that directly connect to a claim and explain how they shape meaning at key moments in a text.

Learning Objectives

• Explain how narrative detail can support a central claim or thesis in explanatory and argumentative writing.
• Identify effective narrative techniques (selection of details, pacing, and meaningful transitions) that keep a story moment aligned to purpose.
• Revise writing by strengthening the connection between a short narrative scene and the larger explanation or argument.

Learning Objectives

• Explain how hydrostatic pressure varies with depth and how that creates resultant surface forces
• Determine the idea of a center of pressure as the point where the distributed force can be replaced by a single resultant
• Describe how net force and torque on submerged planar and curved surfaces are found using integration concepts+ Show more

Learning Objectives

• Describe how demobilization after World War I affected veterans’ reintegration into Canadian society.
• Explain how job competition and economic change influenced political debates and government decisions.
• Analyze how demobilization affected women and marginalized groups, including Indigenous veterans and immigrant communities.+ Show more

Learning Objectives

• Explain how igneous, sedimentary, and metamorphic rocks form based on cooling, deposition, and changing pressure/temperature.
• Describe how mineral properties connect to composition and how textures/mineral assemblages provide evidence of formation conditions.
• Use the rock record to connect tectonic activity to long-term changes on Earth.

Learning Objectives

• Explain how innate immunity provides rapid first-line defense using key cells and processes.
• Describe how adaptive immunity creates antigen-specific responses and immunological memory.
• Connect phagocytosis, antibody production, and cell-mediated cytotoxicity to cellular recognition and signaling.+ Show more

Learning Objectives

• Explain how subject verb agreement works by matching verb tense and form to the subject’s number and person.
• Identify and correct agreement errors involving compound subjects and intervening phrases.
• Apply agreement rules to collective nouns and tricky subject forms in grade-appropriate sentences.

Learning Objectives

• Explain how instrument calibration and resolution affect measurement uncertainty.
• Use significant figures and reading techniques to report measurements appropriately.
• Calculate or qualitatively predict how uncertainty propagates when combining measured quantities.+ Show more

Learning Objectives

• Explain how limiting resources, carrying capacity, competition, and predation affect population size and distribution.
• Interpret population growth patterns and describe how reproductive rate and mortality rate contribute to growth and decline.
• Use evidence from population graphs and ecological succession to justify claims about community stability over time.+ Show more

Learning Objectives

• Explain how particle rearrangement leads to observable reaction products.
• Describe how energy transfer during reactions connects to temperature changes in the environment.
• Use both particle and energy models to interpret common evidence from reactions (such as gas formation and warming or cooling).

Learning Objectives

• Understand the structure and function of vascular networks and circulatory systems in plants and animals.
• Identify key cellular components involved in transport roles within organ systems.
• Explain how tissue and organ architecture facilitate bulk flow and diffusion for cellular metabolism.+ Show more

Learning Objectives

• Explain how friction is a contact force that opposes relative motion
• Describe how surface type and normal force affect friction
• Connect friction to energy changes, especially thermal energy+ Show more

Learning Objectives

• Explain how water potential and tonicity predict water movement across cell membranes
• Compare cellular responses in hypotonic, isotonic, and hypertonic environments for plant and animal cells
• Describe osmoregulatory adaptations (contractile vacuoles, membrane pumps, and extracellular fluid buffering) and their importance for survival

Learning Objectives

• Define mechanical efficiency as useful output energy divided by input energy
• Identify common energy dissipation mechanisms such as frictional heating, sound emission, and material hysteresis
• Describe ways to measure and analyze losses in real mechanical systems+ Show more

Learning Objectives

• Trace how energy is transferred and converted through gears, pulleys, and hydraulic elements in a coupled mechanical system.
• Identify conversion points and common loss mechanisms that reduce useful energy delivered to a load.
• Calculate net useful energy transfer and overall efficiency using energy flow ideas.

Learning Objectives

• Explain how alleles and dominant/recessive inheritance patterns influence observable traits
• Use genetic evidence to interpret why some traits appear every generation while others skip generations
• Describe how similarities among related organisms and mutations provide evidence for heredity

Learning Objectives

• Construct a Claim–Evidence–Reasoning (CER) argument using measurements, trends, and comparisons as evidence.
• Explain how scientific principles connect evidence to a claim through clear reasoning.
• Evaluate CER arguments by checking whether evidence is sufficient, relevant, and consistent with the proposed mechanism.

Learning Objectives

• Define torque (moment of force) and explain how lever arm and force direction affect rotational effect
• Use the condition for rotational equilibrium (net torque = 0) to predict static balance
• Relate net torque to angular acceleration and describe how moment of inertia affects rotational motion+ Show more

Learning Objectives

• Explain how gear ratio relates driver and driven angular speed in spur gear trains.
• Calculate overall gear ratio for simple and compound gear trains, including direction changes.
• Describe torque multiplication and the speed–torque trade-off in gear systems.+ Show more

Learning Objectives

• Explain observable indicators of chemical reactions (color change, gas evolution, precipitate formation, temperature change, and irreversible transformation).
• Differentiate chemical change from physical change using reaction evidence.
• Use the idea of conservation of matter in a closed system to interpret reaction observations.

Learning Objectives

• Choose an appropriate graphical or tabular representation for quantitative and categorical data and explain why the choice fits the variables.
• Interpret graphs by describing trends, slopes, and intercepts, including what error bars suggest about uncertainty.
• Read and communicate findings using captions, legends, and frequency tables, including basic interpolation and careful extrapolation.

Learning Objectives

• Explain how forces (pushes and pulls) can change an object's motion, including speed and direction
• Describe the difference between balanced and unbalanced forces using net force
• Use the idea of net force to predict whether an object speeds up, slows down, or changes direction

Learning Objectives

• Explain the difference between position, distance, speed, velocity, and acceleration
• Classify quantities as scalars or vectors and justify why velocity is a vector
• Interpret distance–time and velocity–time graphs using basic features like slope and straight-line behavior+ Show more

Learning Objectives

• Explain how inheritance from parents leads to variation in offspring
• Describe how recombination and mutations contribute to genetic diversity
• Connect inherited variation to natural selection and survival in different environments

Learning Objectives

• Distinguish literal meanings from figurative meanings in context
• Infer connotation by using surrounding details and sentence-level relationships
• Explain how word choice and figurative language shape tone, mood, or the author’s attitude

Learning Objectives

• Explain how density differences from temperature and salinity create layered (stratified) fluids and pycnoclines
• Describe how buoyancy acts to resist vertical displacement and what buoyancy frequency tells us about stability
• Predict how mixing limitations affect pollutant dispersion and thermal layering in natural waters and reservoirs

Learning Objectives

• Explain how particle motion helps describe gas pressure and temperature
• Describe how increasing temperature changes collision frequency and collision force
• Use the particle model to justify why gas pressure does not depend on one direction of motion

Learning Objectives

• Identify the central idea of an informational text by noticing repeated key claims and themes.
• Distinguish supporting details from the central idea by asking what the text emphasizes overall.
• Use textual evidence to explain how details work together to develop the author’s main point.

Learning Objectives

• Explain how long-term climate trends are identified from many years of weather data.
• Distinguish natural variability from persistent climate change using evidence such as temperature and precipitation trends.
• Describe how climate feedbacks can amplify or reduce warming using examples like ice-albedo and water-vapor effects.+ Show more

Learning Objectives

• Explain how technology choices can affect people and the environment beyond a product’s immediate performance.
• Analyze trade-offs in technology, including impacts on air quality, resource use, noise, safety, and waste.
• Use evidence and systems thinking to judge whether a technology solution is more responsible over its life cycle.

Learning Objectives

• Explain how hydraulic systems use pressure in confined fluids to produce larger output forces
• Use force–area relationships to determine mechanical advantage in piston assemblies
• Evaluate design constraints that affect hydraulic performance, such as viscosity, seals, and fluid compressibility+ Show more

Learning Objectives

• Explain how identifying failure points can guide design improvements
• Connect failure causes to specific design features using evidence
• Evaluate design trade-offs between competing constraints (e.g., strength vs. weight)+ Show more

Learning Objectives

• Explain how the water cycle moves water between the atmosphere, surface, and subsurface.
• Use models to describe how water changes form (vapor to clouds to liquid/ice) and flows through connected reservoirs.
• Differentiate between processes such as evaporation, condensation, precipitation, infiltration, and runoff.

Learning Objectives

• Explain major solar system features using multiple lines of evidence such as composition, density, and surface characteristics
• Connect planetary differentiation and heat history to observed differences across planets and smaller bodies
• Use observations of craters, volcanic landforms, rings, and moons to make evidence-based claims about geologic activity and impacts+ Show more

Learning Objectives

• Explain how cellular respiration and photosynthesis transform energy and exchange matter between cells and their environment
• Describe how diffusion and osmosis move materials across cell membranes based on concentration gradients
• Connect organelle interdependence to ATP production and energy budgets in the cell

Learning Objectives

• Explain how economic developments influenced where people settled and why communities expanded.
• Analyze cause-and-effect relationships between resource booms, industrial growth, and settlement locations.
• Describe how Indigenous perspectives and traditional territories relate to settlement changes over time.+ Show more