Grade 8 Science Worksheets

Learning Objectives

• Understand different population growth models such as exponential and logistic growth.
• Identify factors influencing population changes, including food supply and predation.
• Describe examples of population cycles, such as snowshoe hare and lynx interactions.+ Show more

Learning Objectives

• Apply the law of conservation of mass to open and closed systems by accounting for all matter and possible mass transfer.
• Use quantitative evidence (before/after masses) to explain apparent mass changes without breaking atom conservation.
• Connect balanced chemical equations to mass and mole relationships when comparing measured reactant and product values.

Learning Objectives

• Understand the components and interactions within physical and ecological systems.
• Explain the concept of energy transfer, matter conservation, and forces in systems.
• Use diagrams and models to trace system flows and predict responses.+ Show more

Learning Objectives

• Understand how human land use impacts habitat and nutrient cycles in Alberta.
• Identify various human activities that affect species interactions and ecosystems.
• Analyze mitigation strategies used to restore ecological functions and connectivity.+ Show more

Learning Objectives

• Explain how natural selection requires variation and depends on environmental conditions
• Describe how advantageous traits become more common over successive generations
• Use examples (such as antibiotic resistance) to illustrate changes in trait frequencies

Learning Objectives

• Understand the structure and function of various human organ systems.
• Identify how organs collaborate within systems to perform physiological functions.
• Explain the importance of tissue compatibility and communication pathways in systems biology.+ Show more

Learning Objectives

• Identify the particle arrangement in solids, liquids, and gases.
• Describe the key characteristics that distinguish solids from other states.
• Explain why solids maintain a fixed shape and how their particles behave.+ Show more

Learning Objectives

• Understand the concept of power as energy transfer per unit time
• Identify factors affecting the efficiency of electrical devices
• Analyze how energy loss mechanisms impact device performance+ Show more

Learning Objectives

• Understand the concept of intermolecular forces and how they influence physical properties of substances.
• Identify different types of intermolecular forces and their effects on melting points, boiling points, and solubility.
• Relate molecular interactions to regional phenomena such as freeze–thaw cycles, hydrocarbon volatility, and evaporation rates.

Learning Objectives

• Identify observable evidence of chemical and physical changes.
• Distinguish between chemical and physical changes based on evidence.
• Explain examples of common chemical and physical transformations.+ Show more

Learning Objectives

• Identify the different types of energy present in mechanical systems.
• Describe how potential and kinetic energy convert between each other during system motion.
• Recognize thermal and acoustic energy as energy sinks in various systems.+ Show more

Learning Objectives

• Describe the components and functions of the innate and adaptive immune systems.
• Identify the roles of different immune cells such as phagocytes, lymphocytes, and antigen-presenting cells.
• Explain how tissues and organs coordinate immune responses to maintain internal balance during infection.+ Show more

Learning Objectives

• Explain the basic architecture of cell membranes, including phospholipids, proteins, cholesterol, and carbohydrates.
• Describe the functions of membrane proteins in transport, signaling, and structural support.
• Compare structural variations in membranes among different cell types and their implications for permeability and resilience.+ Show more

Learning Objectives

• Identify observable indicators of chemical reactions such as color change, gas evolution, precipitate formation, temperature change, and irreversible transformation.
• Differentiate between chemical and physical changes using reaction evidence.
• Understand conservation concepts in closed systems during chemical reactions.+ Show more

Learning Objectives

• Understand how particle theory, classification principles, and mass conservation are applied in environmental chemical processes.
• Interpret nutrient cycling, contamination transfer, and remediation within environments such as lakes and contaminated sites.
• Analyze phase changes, mixtures, and chemical signatures to trace sources and sinks in closed or semi-closed systems.+ Show more

Learning Objectives

• Understand the principles of voltage, current, and power in electrical circuits.
• Apply conservation laws to analyze complex electrical networks.
• Interpret schematic diagrams and perform systematic calculations of circuit parameters.+ Show more

Learning Objectives

• Understand how mechanical energy transforms into less useful forms like thermal energy through various mechanisms.
• Identify different causes and effects of energy dissipation in mechanical systems.
• Explain the concept of efficiency and factors that influence energy transfer losses.+ Show more

Learning Objectives

• Explain the energy transformations involved in photosynthesis and cellular respiration.
• Describe how membrane transport processes regulate internal cell conditions.
• Identify the chemical inputs and outputs of photosynthesis and respiration.+ Show more

Learning Objectives

• Understand how to construct and interpret system diagrams of ecosystems.
• Identify biotic and abiotic components and their interactions.
• Analyze the effects of changes in one component on the entire ecosystem.+ Show more

Learning Objectives

• Understand the relative sizes of different solar system objects, including planets, moons, and the Sun.
• Interpret data such as diameters, distances in astronomical units, and orbital periods to identify patterns and relationships.
• Use scale concepts to compare the vast differences in size and distance across the solar system.+ Show more

Learning Objectives

• Understand the importance of environmental monitoring in assessing ecosystem health.
• Identify different methods used to monitor environmental pollution.
• Learn about key indicators used to assess air, water, and soil quality.+ Show more

Learning Objectives

• Understand how pollution affects ecosystems and organisms
• Identify sources and pathways of water pollution
• Explain the effects of nutrient overload and contaminants on water quality+ Show more

Learning Objectives

• Describe how atmospheric pressure affects boiling points and weather instruments.
• Explain the operation of barometers and pressure-sensitive devices.
• Analyze the relationship between altitude and pressure variation.+ Show more

Learning Objectives

• Explain the concept of power as energy transfer per unit time.
• Compare the efficiency of different electrical devices and systems.
• Identify loss mechanisms such as resistive heating, transformer losses, and transmission dissipation.+ Show more

Learning Objectives

• Define mechanical efficiency and explain how energy dissipation mechanisms reduce it.
• Identify common causes of energy losses in gears, bearings, and belt drives.
• Describe measurement methods for quantifying efficiency losses.+ Show more

Learning Objectives

• Understand different types of measurement errors
• Recognize systematic and random errors
• Learn methods to identify and minimize errors+ Show more

Learning Objectives

• Understand how to relate masses of reactants and products in chemical reactions using proportional reasoning.
• Apply the law of conservation of mass to interpret measurements in chemical systems.
• Use stoichiometry to predict relative amounts of substances involved in reactions.+ Show more

Learning Objectives

• Differentiate static electricity from current electricity using origin, mobility, and effects of charge
• Describe how electric charge transfers between objects and how conductors and insulators affect charge movement
• Use basic vocabulary (proton, electron, conductor, insulator, ion) to explain electrostatic phenomena

Learning Objectives

• Explain how thermal energy transfers through conduction, convection, and radiation
• Use everyday examples to connect heat movement to temperature changes
• Identify which thermal transfer mode best fits a described situation

Learning Objectives

• Understand the relative positions and motions of the Earth, Sun, and Moon
• Explain the causes of lunar phases, eclipses, and seasonal changes
• Identify observable phenomena linked to orbital geometry and timing+ Show more

Learning Objectives

• Describe the main phases of the cell cycle, including interphase, mitosis, and cytokinesis.
• Identify the roles of cyclins, kinases, and checkpoint mechanisms in cell division.
• Explain how proper regulation of the cell cycle maintains organismal development and prevents genomic instability.

Learning Objectives

• Explain how particle motion relates to gas pressure and temperature using a collision model.
• Describe how changes in temperature affect the speed of gas particles and the force of collisions.
• Use particle ideas to interpret macroscopic observations of gases in containers.

Learning Objectives

• Identify key safety features in electrical systems
• Understand environmental considerations related to electricity generation
• Recognize protective devices used in electrical system design+ Show more

Learning Objectives

• Describe Earth's rotation and its role in day and night cycles.
• Explain Earth's revolution around the Sun and how it causes seasons.
• Identify how Earth's axial tilt affects the Sun's altitude and length of days at different latitudes.+ Show more

Learning Objectives

• Explain the mechanisms of surface water and groundwater interactions.
• Identify factors influencing exchange rates between surface water and groundwater.
• Describe how river stage and seasonal changes affect surface exchanges.+ Show more

Learning Objectives

• Understand how earthquake, volcanic, tsunami, and fault data are used to assess natural hazard risks.
• Interpret geospatial and statistical data to evaluate recurrence intervals and hazard potential.
• Learn how monitoring technologies inform hazard forecasting and mitigation efforts.+ Show more

Learning Objectives

• Analyze how population growth and per-capita consumption influence Earth system changes.
• Evaluate evidence related to resource use trends, land cover change, and biogeochemical fluxes.
• Understand the relationships between demographic patterns, climate change, water availability, and biodiversity.+ Show more

Learning Objectives

• Explain how particle motion relates to gas pressure and temperature.
• Describe the effects of temperature changes on gas expansion and compression.
• Analyze real-world examples of gas behaviour in Alberta, such as atmospheric pressure variation with altitude and seasonal mixing.

Learning Objectives

• Analyze test data to identify performance trends in design modifications.
• Use graphical and statistical summaries to evaluate design improvements.
• Quantify trade-offs among efficiency, strength, and durability in iterative design processes.+ Show more

Learning Objectives

• Distinguish mass as an intrinsic measure of matter from weight as the gravitational force on that mass
• Use the relationship between mass, gravitational acceleration, and weight to explain how weight changes with location
• Apply mass-based and gravity-influenced ideas to real-world contexts such as vehicle load specifications and agricultural dosing

Learning Objectives

• Understand the concept of closed-system analysis and its significance in chemical and environmental processes.
• Identify examples and applications of closed systems in real-world scenarios.
• Interpret mass conservation principles within enclosed systems.+ Show more

Learning Objectives

• Understand how gravity components act on objects on slopes.
• Analyze how slope steepness influences unbalanced forces and motion.
• Resolve force vectors into perpendicular and parallel components relative to an incline.+ Show more

Learning Objectives

• Understand how light availability influences species distribution and growth.
• Identify the effects of temperature and water on ecosystems and organisms.
• Describe how soil composition and nutrient levels shape community structure.+ Show more

Learning Objectives

• Understand the concept of work as force applied over a displacement and its relation to energy transfer.
• Calculate work for both constant and variable forces in mechanical systems.
• Connect work input to changes in kinetic and potential energy through the work–energy theorem.+ Show more

Learning Objectives

• Understand how to define criteria and constraints for engineering problems.
• Identify measurable performance goals, safety requirements, and environmental considerations.
• Apply trade-off analysis between time, cost, and durability in problem statements.+ Show more

Learning Objectives

• Analyze the links between population growth, resource consumption, and environmental change.
• Evaluate quantitative indicators and data trends related to climate, land use, and biogeochemical fluxes.
• Apply cause–effect reasoning to assess how demographic and consumption patterns impact Earth systems.+ Show more

Learning Objectives

• Understand how matter cycles between living organisms and the abiotic environment.
• Explain processes such as photosynthesis, respiration, and decomposition.
• Trace atoms through different reservoirs such as producers, consumers, and soil.+ Show more

Learning Objectives

• Understand how models represent cellular processes
• Identify structural and functional relationships among organelles
• Interpret membrane transport, diffusion, and osmosis through models+ Show more