Grade 8 Science Worksheets

Learning Objectives

• Describe the process of photosynthesis including light-dependent reactions and the Calvin cycle.
• Identify the structure of chloroplasts and the role of pigments in photosynthesis.
• Explain how environmental factors affect photosynthetic efficiency and cellular carbon flux.+ Show more

Learning Objectives

• Understand how electric motors convert electrical energy into mechanical motion.
• Learn the basic principles of how motors operate using magnetic fields.
• Recognize how generators convert mechanical motion into electrical energy.+ Show more

Learning Objectives

• Understand the different types of membrane transport mechanisms, including passive and active processes.
• Identify and describe processes such as diffusion, osmosis, facilitated diffusion, and active transport.
• Explain the roles of carrier proteins and pumps in membrane transport.+ Show more

Learning Objectives

• Understand the concept of thermal equilibrium as the state where heat flow between objects ceases
• Explain how energy transfer occurs between different materials until equilibrium is reached
• Model principles of thermodynamics during phase changes and temperature adjustments+ Show more

Learning Objectives

• Understand the importance of instrument calibration in scientific measurements.
• Learn how to estimate and interpret measurement uncertainty.
• Recognize the significance of repeatability and proper unit usage in data collection.+ Show more

Learning Objectives

• Compare how fossil, anatomical, embryological, and molecular evidence support shared ancestry.
• Identify patterns of unity and diversity and explain how transitional fossils connect groups over time.
• Use homologous structures, conserved developmental stages, and DNA similarities to form evidence-based hypotheses about lineage.

Learning Objectives

• Understand how elastic forces depend on deformation of materials.
• Identify examples of springs and elastic components in real-world systems.
• Explain the concept of linear elastic behavior limits and force direction.+ Show more

Learning Objectives

• Identify different surface features on planets and moons.
• Understand how surface features provide clues about planetary history.
• Analyze evidence related to planetary differentiation, impacts, and geological activity.

Learning Objectives

• Explain the difference between static and kinetic friction
• Identify factors affecting frictional forces such as surface texture and material pairing
• Understand how friction influences vehicle traction, wear, and heat generation+ Show more

Learning Objectives

• Understand how faults and plate boundary interactions contribute to seismic activity.
• Identify and describe different types of seismic waves and their propagation.
• Interpret seismic records and locate earthquake epicenters.+ Show more

Learning Objectives

• Explain how energy exchange and particle motion cause phase transitions between solid, liquid, and gas.
• Describe melting, freezing, vaporization, and condensation and identify them in real-life Alberta examples.
• Predict how changing temperature or pressure can lead to a reversible change in state of matter.+ Show more

Learning Objectives

• Understand the concept of design solutions and their evaluation criteria
• Identify different design ideas and compare their potential benefits and limitations
• Recognize how measurable performance indicators influence solution selection+ Show more

Learning Objectives

• Understand the three fundamental principles of Newton's laws of motion.
• Analyze how forces affect the motion of objects in various contexts.
• Apply proportional reasoning to relate force, mass, and acceleration.+ Show more

Learning Objectives

• Describe how the digestive system combines mechanical and chemical processes to break down food.
• Explain the role of tissue specialization in different zones of the digestive tract.
• Understand how the circulatory system transports nutrients from the digestive organs to cells.+ Show more

Learning Objectives

• Explain how inherited traits can become more common when they help organisms survive and reproduce under changing conditions.
• Describe how abiotic and biotic factors create environmental pressures that influence adaptation over generations.
• Predict how population traits may shift in response to a specific environmental change.

Learning Objectives

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

Learning Objectives

• Understand how climate variation influences temperature, precipitation, and extreme events.
• Identify impacts of climate change on ecosystems, species distribution, and phenology.
• Explain interactions affected by climate change, such as pollination, predator-prey cycles, and migration.+ Show more

Learning Objectives

• Understand various nature-based and engineered approaches for stormwater management.
• Identify functions such as infiltration, runoff reduction, and sediment capture.
• Explain design parameters affecting the effectiveness of green infrastructure.+ Show more

Learning Objectives

• Learn the main stages involved in water purification and wastewater treatment.
• Understand the processes of coagulation, flocculation, sedimentation, filtration, and disinfection.
• Recognize the importance of removing pathogens, suspended solids, and dissolved contaminants.+ Show more

Learning Objectives

• Understand the concepts of integrated water resources management.
• Identify key governance instruments used in water management.
• Explain how scientific understanding influences policy decisions.+ Show more

Learning Objectives

• Understand how climate change influences precipitation patterns and snowpack.
• Analyze the effects of changing weather on water availability.
• Evaluate the broader environmental and infrastructural consequences of climate variability.

Learning Objectives

• Define what an aquifer is and explain its role in groundwater storage.
• Identify the different types of aquifers and their characteristics.
• Describe the processes of recharge and discharge in aquifer systems.+ Show more

Learning Objectives

• Identify key physical, chemical, and biological water indicators
• Understand the significance of each water indicator for aquatic health
• Interpret indicator ranges relevant to water quality assessment+ Show more

Learning Objectives

• Understand various methods and instruments used for measuring water quantity and quality.
• Recognize the importance of precision and sampling frequency in hydrologic data collection.
• Interpret hydrographs, baseflow separation, and water quality trends from time series data.

Learning Objectives

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

Learning Objectives

• Understand the components of the hydrologic cycle in regional contexts
• Identify how watershed connectivity influences water movement
• Analyze groundwater-surface water exchanges+ Show more

Learning Objectives

• Understand how observable traits are inherited through genetic instructions.
• Identify different forms of genes and their influence on physical traits.
• Explain patterns of dominant and recessive traits and their inheritance in families.+ Show more

Learning Objectives

• Understand how particles change during chemical reactions
• Identify energy changes associated with reactions
• Explain the relationship between particle rearrangements and temperature changes

Learning Objectives

• Explain how friction is a contact force that opposes relative motion between surfaces
• Describe how surface texture and normal force affect the frictional force and motion of objects
• Use real-world examples (brakes, sleds, tires) to predict how friction changes motion and energy transfer

Learning Objectives

• Explain how limiting factors like food, predation, disease, and weather affect population size over time
• Describe carrying capacity and how it helps explain why populations do not grow indefinitely
• Analyze how changes in conditions can cause populations to grow, stabilize, or decrease

Learning Objectives

• Understand the principles of drinking-water and wastewater treatment.
• Identify the stages involved in water treatment processes.
• Explain mechanisms such as coagulation, flocculation, sedimentation, filtration, and disinfection.+ Show more

Learning Objectives

• Understand how energy enters and moves through ecosystems.
• Identify the roles of producers and consumers in energy transfer.
• Explain how energy dissipates at each trophic level and its impact on ecosystems.+ Show more

Learning Objectives

• Describe various methods and instruments used for measuring water quantity and quality.
• Explain the concepts of stream gauging, rating curves, and stage-discharge relationships.
• Identify the types of sensors used in surface water monitoring and their functions.+ 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

• Understand torque, lever arm, and conditions for equilibrium in rotational systems.
• Explain the relationship between net torque and angular acceleration.
• Perform simple calculations linking rotational inertia, applied torque, and rotational speed.+ Show more

Learning Objectives

• Understand how to decompose complex systems into components and forces.
• Learn to distinguish between internal and external interactions in a system.
• Apply vector analysis to evaluate equilibrium or net acceleration in systems.+ Show more

Learning Objectives

• Explain how dominant and recessive alleles influence observable traits.
• Predict genotypic and phenotypic ratios using Punnett squares.
• Describe allele segregation and its role in inheritance.+ Show more

Learning Objectives

• Explain how scientific inquiry uses observations and questions to form testable explanations.
• Distinguish evidence-based claims from opinions and identify how data supports an explanation.
• Use appropriate methods and careful recording to compare results with existing knowledge.

Learning Objectives

• Understand how to resolve gravitational force into components on an inclined plane.
• Analyze the effect of slope steepness on unbalanced forces and potential acceleration.
• Apply vector decomposition to real-world inclined force scenarios and analyze frictional resistance.+ Show more

Learning Objectives

• Understand the different types of rocks: igneous, sedimentary, and metamorphic.
• Explain the processes that transform rocks, such as heat, pressure, weathering, erosion, and deposition.
• Identify how tectonic activity is linked to the rock cycle.+ Show more

Learning Objectives

• Define and distinguish between heterogeneous and homogeneous mixtures.
• Explain the process of solution formation and concepts of saturation and solubility.
• Identify common separation techniques such as filtration, evaporation, and distillation.+ Show more

Learning Objectives

• Understand the concept of energy conservation within a system.
• Identify examples of energy transfer and conversion.
• Explain how energy shifts between potential and kinetic forms.+ Show more

Learning Objectives

• Identify various physical, chemical, and biological water quality indicators.
• Interpret indicator ranges related to aquatic health and uses.
• Understand sources of variability and the importance of integrated assessments.+ Show more

Learning Objectives

• Define and identify conditions of balanced forces in objects.
• Differentiate between static and dynamic equilibrium.
• Explain how balanced forces result in no change in motion.+ Show more

Learning Objectives

• Understand how electrical systems transfer and convert energy between different forms.
• Identify examples of energy transformation in real-world devices.
• Explain factors affecting efficiency and energy losses in systems.+ Show more

Learning Objectives

• Understand the different types of friction and their effects on moving parts.
• Analyze how surface texture, normal force, and system design influence frictional forces.
• Evaluate methods for estimating friction in simple mechanical apparatus.+ Show more

Learning Objectives

• Explain how motion composed of different segments affects overall average speed.
• Apply proportional reasoning to compute average speed from total distance and total time.
• Analyze how slow segments influence overall average speed more than faster segments.+ Show more

Learning Objectives

• Understand different strategies used in ecosystem conservation.
• Identify the importance of habitat protection and restoration.
• Explain how social, economic, and ecological factors influence conservation effectiveness.+ Show more