Grade 8 Science Worksheets

Learning Objectives

• Apply particle theory and classification of mixtures/phases to explain nutrient cycling and contaminant transport in environmental systems.
• Use mass conservation (mass balance) to relate inputs, outputs, and internal storage in closed or semi-closed system scenarios.
• Interpret chemical signatures and measurements to identify probable sources (inputs) and sinks (removal processes) in a watershed or contaminated site.

Learning Objectives

• Explain how magnetic fields are produced by magnets and by moving electric charges (current).
• Interpret magnetic field lines to describe direction, strength, and polarity.
• Describe how ferromagnetic materials affect magnetic fields and how electromagnets are used in technology.

Learning Objectives

• Understand what friction is and how it opposes motion.
• Identify real-world examples of friction.
• Recognize factors affecting the amount of friction between surfaces.

Learning Objectives

• Define momentum and explain how it is calculated.
• Differentiate between elastic and inelastic collisions.
• Describe real-world examples of momentum transfer.+ Show more

Learning Objectives

• Explain how ecological restoration and mitigation work to re-establish habitat, ecosystem function, and connectivity.
• Describe common restoration actions (e.g., recontouring, soil amendment, riparian buffers, species reintroductions) and why they are used.
• Use adaptive management and monitoring to evaluate recovery over time, especially under climate constraints.

Learning Objectives

• Explain how population growth and per-capita consumption can influence climate, water availability, and biodiversity.
• Use cause-and-effect reasoning to connect land-cover change and biogeochemical fluxes to Earth system changes.
• Support an argument using quantitative evidence trends and examples from resource use and environmental impacts.

Learning Objectives

• Classify materials by magnetic response: diamagnetic, paramagnetic, and ferromagnetic
• Explain how magnetic domains, remanence, and coercivity relate to magnet performance
• Choose appropriate magnetic materials for applications such as permanent magnets, transformers, and magnetic separation+ Show more

Learning Objectives

• Explain how multiple organ systems coordinate to maintain homeostasis in the human body
• Describe how nerves and hormones communicate signals to support coordinated body responses
• Connect cell and tissue structure to organ function in integrated body systems+ Show more

Learning Objectives

• Identify how axis labels, units, and scales affect the meaning of a graph.
• Choose appropriate graph types for relationships between variables or trends over time.
• Interpret scatter plots, line graphs, and bar graphs to make evidence-based conclusions.+ Show more

Learning Objectives

• Predict likely chemical products by using reactant identities and reaction patterns, then checking using conservation of atoms.
• Use balanced equations to determine product formulas and relative amounts (stoichiometric ratios).
• Convert between mass and moles to compare reactant quantities and estimate yields.

Learning Objectives

• Explain how physical properties (particle size, solubility, boiling point, and magnetism) are used to separate mixtures.
• Identify common separation methods and match each method to the property it relies on.
• Use evidence from a scenario to choose an appropriate separation method and justify the choice.

Learning Objectives

• Understand key concepts related to biodiversity including species richness, evenness, and indices.
• Identify factors that influence biodiversity assessments in different environments.
• Explain the importance of biodiversity for ecosystem stability and health.+ Show more

Learning Objectives

• Explain how scientific inquiry uses observations and questions to build evidence-based explanations
• Identify appropriate methods for investigating a question and describe how to record results carefully
• Use evidence to decide whether a new explanation fits existing knowledge or needs revision

Learning Objectives

• Understand the concept of predation and how it affects populations
• Identify different types of species interactions such as mutualism and parasitism
• Analyze how species interactions influence community structure and environmental changes

Learning Objectives

• Understand how properties like pH, conductivity, density, and refractive index change during chemical reactions.
• Identify different property shifts as evidence of chemical transformations.
• Distinguish between physical changes and chemical changes based on property measurements.+ Show more

Learning Objectives

• Construct clear scientific explanations using claim–evidence–reasoning.
• Use standard conventions when communicating data (titles, labeled axes, units, and organized tables).
• Summarize investigation procedures and interpret results using precise scientific vocabulary.+ Show more

Learning Objectives

• Understand the processes involved in nutrient cycling within ecosystems.
• Identify the roles of decomposers, nitrogen fixation, and sedimentation in nutrient pathways.
• Analyze how environmental factors such as temperature and moisture influence nutrient cycling rates.+ Show more

Learning Objectives

• Explain how ecosystem models represent trophic levels, nutrient pools, and fluxes using diagrams and quantitative balances.
• Interpret model outputs by connecting model components to observable features such as biomass stocks and decomposition rates.
• Evaluate the assumptions and limitations of model frameworks when describing Alberta wetlands, forest stands, and grasslands.

Learning Objectives

• Explain the conservation of mass in terms of atoms and a closed system.
• Use balanced chemical equations to predict that mass is conserved.
• Connect mass, moles, and particle counts to verify mass relationships in reactions.+ Show more

Learning Objectives

• Understand different types of green infrastructure and their functions in stormwater management.
• Identify design parameters that influence the effectiveness of green infrastructure.
• Explain the environmental benefits such as groundwater recharge and peak flow reduction.+ Show more

Learning Objectives

• Explain how static and kinetic friction affect the motion of objects in everyday situations
• Analyze how normal force, surface texture, and lubrication influence frictional forces
• Describe how aerodynamic drag can reduce performance for moving systems like wheels and vehicles+ Show more

Learning Objectives

• Analyze series and parallel circuits to determine voltages, currents, and equivalent resistance
• Use conservation ideas (charge/current and energy/voltage) to support quantitative circuit calculations
• Compute power in circuits and interpret how component changes affect circuit behavior+ Show more

Learning Objectives

• Understand how particle motion relates to temperature changes.
• Identify the effects of energy transfer on the states of matter.
• Explain phase changes such as melting, boiling, and condensation in terms of particle motion.+ Show more

Learning Objectives

• Identify temperature change as an observable signature of chemical reactions
• Understand how temperature change indicates chemical transformation
• Recognize other reaction signatures such as precipitate formation, color change, and gas release

Learning Objectives

• Explain how diagrams and physical/computational models link cell structure to cell function.
• Use models to describe diffusion and osmosis across a cell membrane.
• Interpret how organelles work together to support cell viability.+ Show more

Learning Objectives

• Explain how accuracy and precision affect the credibility of scientific measurements.
• Use appropriate units and tools, and record measurements with correct significant figures.
• Describe how calibration and consistent procedures reduce systematic errors and improve data quality.+ Show more

Learning Objectives

• Explain linear momentum and how it changes when objects interact
• Use impulse to describe the relationship between force, time, and change in momentum
• Distinguish elastic and inelastic collisions using conservation of momentum and energy considerations+ Show more

Learning Objectives

• Explain passive transport (diffusion, osmosis, and facilitated diffusion) and how concentration gradients affect net movement.
• Describe active transport and how ATP-powered pumps maintain ionic gradients for cell function.
• Compare bulk transport (endocytosis and exocytosis) with transport involving membrane proteins, and relate these processes to nutrient uptake and volume regulation.+ Show more

Learning Objectives

• Explain how Earth’s lithosphere is divided into moving tectonic plates over geologic time
• Describe how plate boundaries (divergent, convergent, transform) affect landforms and geologic hazards
• Use evidence such as matching coastlines, seafloor features, and earthquake patterns to support the plate tectonics model

Learning Objectives

• Explain how gravitational attraction depends on mass and distance.
• Predict how changing mass or distance affects the strength of gravity.
• Use the idea of gravity as a force of interaction that acts at a distance to describe motion.

Learning Objectives

• Understand the principles of circuit analysis including conservation laws and relationships between voltages, currents, and power.
• Apply systematic methods to analyze simple and mixed electrical networks.
• Use schematic diagrams and reduce equivalent resistance to simplify circuit analysis.+ Show more

Learning Objectives

• Understand how neurons transmit electrical signals rapidly through specialized cellular features.
• Identify components of neural circuits that control reflexes, movements, and gland secretion.
• Explain how cellular properties like myelination and synapse function contribute to signal speed and fidelity.+ Show more

Learning Objectives

• Understand the processes that govern movement of contaminants in surface and groundwater.
• Identify key mechanisms such as advection, dispersion, diffusion, sorption, and biodegradation.
• Examine how contaminant plumes form and migrate in aquifers and fractured rock.+ Show more

Learning Objectives

• Model Earth's material cycles and energy flows emphasizing rock cycle processes, mantle convection, and surface interactions.
• Describe the transfer of mass through melting, crystallization, uplift, weathering, transport, and deposition.
• Identify Earth's energy sources such as internal heat and gravitational potential.+ Show more

Learning Objectives

• Understand the concept of phase transitions and the energy changes involved.
• Identify different types of phase changes such as melting, freezing, vaporization, and condensation.
• Describe how phase behavior impacts natural phenomena and human infrastructure.+ Show more

Learning Objectives

• Explain why instrument calibration and consistent units matter when measuring motion and force.
• Estimate and interpret uncertainty and measurement error using repeat trials.
• Use significant figures appropriately when reporting distances, times, and force readings.

Learning Objectives

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

Learning Objectives

• Explain how conservation of mass can be tested using closed systems and careful measurements.
• Describe what happens to total mass when reactions occur in sealed containers.
• Interpret evidence from gas-trapping experiments to account for mass changes caused by the environment.

Learning Objectives

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

Learning Objectives

• Understand the concept of speed as distance divided by time.
• Differentiate between constant speed and average speed.
• Apply proportional reasoning to relate speed, distance, and time.+ Show more

Learning Objectives

• Explain how moving air masses and pressure differences affect wind, temperature, humidity, and precipitation
• Interpret surface pressure maps and weather symbols to predict likely weather changes
• Use evidence from time-series and synoptic patterns to connect fronts and storms to atmospheric dynamics

Learning Objectives

• Understand the basics of cell culture techniques used in biotechnology.
• Identify different methods of stem cell differentiation.
• Explore how tissue engineering is applied in medical research.+ Show more

Learning Objectives

• Understand the difference between endothermic and exothermic reactions.
• Identify energy transfer in chemical reactions based on temperature changes.
• Explain particle motion and bonding changes during energy absorption or release.+ Show more

Learning Objectives

• Understand the concept of homeostasis and its importance in maintaining internal stability.
• Identify how negative feedback mechanisms regulate body temperature, blood chemistry, water balance, and oxygen levels.
• Describe the system interactions involved in homeostatic regulation and their role in supporting cell function, growth, and reproduction.

Learning Objectives

• Understand how temperature and salinity influence fluid density
• Identify different fluid layers based on density differences
• Explain buoyant exchange and stability in stratified fluids+ Show more

Learning Objectives

• Understand the processes involved in the global and local water cycle, including evaporation, condensation, precipitation, infiltration, runoff, and groundwater flow.
• Describe how phase changes and energy from the Sun drive the water cycle.
• Connect the water cycle processes to mechanical and chemical weathering on land surfaces such as river incision, karst formation, and coastal erosion.+ Show more

Learning Objectives

• Interpret and analyze distance–time and velocity–time graphs to understand motion.
• Calculate speed and acceleration from graph slopes and areas.
• Differentiate between uniform and uniformly accelerated motion through graphical representations.+ Show more

Learning Objectives

• Explain how friction and fluid drag are resistive forces that oppose motion and affect acceleration.
• Describe how normal force and surface type influence friction, and how speed, shape, and fluid properties influence drag.
• Connect resistive forces to energy changes and to terminal speed when driving force balances drag.