Grade 8 Science Worksheets

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

• Understand how energy enters and transfers within ecosystems.
• Identify the role of photosynthesis and food webs in energy flow.
• Explain why energy dissipation limits the number of trophic levels.+ Show more

Learning Objectives

• Compare how crater density helps scientists infer the relative ages of planetary surfaces
• Explain how resurfacing processes (like lava flows) produce smoother regions with fewer visible craters
• Use relationships between impact features and surrounding materials to support claims about geologic activity+ Show more

Learning Objectives

• Identify parts of a lever and explain how it works
• Understand the concept of mechanical advantage
• Describe how simple machines like levers, pulleys, and gears transfer energy+ Show more

Learning Objectives

• Explain how birth rates, death rates, immigration, and emigration affect population growth patterns
• Distinguish intrinsic growth factors (reproductive strategies and age structure) from extrinsic factors (density-dependent and density-independent)
• Use counts, estimates, and simple demographic models to interpret population change over time

Learning Objectives

• Understand the basic principles of the particle theory of matter.
• Describe how particle arrangement and motion determine the properties of solids, liquids, and gases.
• Connect microscopic particle behaviour to observable traits such as rigidity, flow, and compressibility.+ Show more

Learning Objectives

• Define constant speed and understand its representation on distance-time graphs.
• Calculate average and instantaneous speed in different motion scenarios.
• Interpret changes in graph slopes as acceleration or deceleration.+ Show more

Learning Objectives

• Understand the concept of homogeneous mixtures and their common examples.
• Identify factors that influence the behavior of solutions and alloys.
• Describe regional examples of homogeneous mixtures and their environmental impacts.+ Show more

Learning Objectives

• Understand how tissues interact to form organs with specific functions.
• Identify the structural features of tissues that support organ architecture.
• Explain how organ structures enable efficiency in physiological tasks.+ Show more

Learning Objectives

• Explain how a keystone species can connect freshwater and marine food webs.
• Analyze how abiotic factors and human activities interact to change population dynamics and ecosystem resilience.
• Use evidence from multiple pressures to describe trade-offs in conservation decisions.

Learning Objectives

• Describe how particle motion relates to pressure and temperature in gases.
• Explain the effects of temperature changes on gas expansion, compression, and diffusion.
• Relate observable gas behaviours to real-world Alberta examples like altitude pressure variations and seasonal atmospheric mixing.+ Show more

Learning Objectives

• Understand the structure and function of alveoli, stomata, and mesophyll in gas exchange.
• Explain how surface area and surface thinness facilitate diffusion in organisms.
• Identify specialized cell shapes and arrangements that reduce diffusion distance.+ Show more

Learning Objectives

• Understand how multiple organ systems coordinate to maintain homeostasis.
• Explain the roles of the respiratory, circulatory, excretory, and endocrine systems in systemic regulation.
• Describe how cellular structures support organ functions and inter-system communication.

Learning Objectives

• Understand how introduced species become invasive and the impacts on native ecosystems.
• Identify pathways of species introduction and ecological traits that favor invasion.
• Analyze how invasive species alter community interactions and ecosystem processes.+ Show more

Learning Objectives

• Define and explain the concept of constant speed in motion.
• Interpret distance-time graphs to identify constant speed scenarios.
• Calculate average and instantaneous speed in various contexts.+ Show more

Learning Objectives

• Identify and distinguish between physical and chemical changes and their evidence.
• Understand examples of physical and chemical changes in environmental contexts.
• Analyze phenomena to determine whether they involve physical or chemical change.+ Show more

Learning Objectives

• Explain how energy enters and moves through ecosystems.
• Identify the role of producers and consumers in energy transfer.
• Understand the concept of energy loss as heat at each trophic level.+ Show more

Learning Objectives

• Explain the concept of a closed system in scientific analysis.
• Identify examples of closed systems used in research and industry.
• Describe how mass conservation applies within closed systems.+ Show more

Learning Objectives

• Explain how cell structures are modified to perform specific biological functions.
• Identify examples of specialized cells and connect their structure to their role in tissues.
• Use evidence from cell features such as organelles and surface area to justify how specialization improves function.

Learning Objectives

• Explain how inheritance of alleles from parents contributes to differences among offspring
• Describe how recombination during meiosis creates genetic variation
• Connect genetic variation to changes in allele frequencies and survival in local environments+ Show more

Learning Objectives

• Describe the components and functions of the innate and adaptive immune systems.
• Identify cellular specializations involved in immune responses.
• Explain the roles of lymphoid organs and circulatory pathways in immune defense.+ Show more

Learning Objectives

• Understand the concept of phase diagrams and their components
• Interpret temperature and pressure conditions for matter
• Identify phase boundaries and equilibrium points+ Show more

Learning Objectives

• Understand how heating curves represent temperature changes of matter during heat absorption
• Identify phase changes such as melting and boiling on heating curves
• Explain the significance of plateaus in heating curves as phase transition points+ Show more

Learning Objectives

• Explain how energy moves through trophic levels in one direction from the Sun to producers and then to consumers
• Describe why energy decreases at each trophic level and how that limits population sizes
• Compare food chains and food webs to show how multiple pathways affect energy flow

Learning Objectives

• Understand the chemical and environmental factors contributing to material corrosion.
• Identify signs of corrosion and analyze environmental influences on infrastructure degradation.
• Evaluate protective measures and materials used to prevent or reduce corrosion in regional structures.+ Show more

Learning Objectives

• Understand and explain Newton's three laws of motion.
• Identify examples of Newton's laws in regional scenarios such as trucks and hockey pucks.
• Predict the effects of forces on objects' motion and direction.+ Show more

Learning Objectives

• Understand the concept of power and how it quantifies energy transfer over time.
• Compare and analyze the efficiency of electrical devices and systems.
• Identify common loss mechanisms such as resistive heating and transmission dissipation.+ Show more

Learning Objectives

• Explain how actin and myosin filaments interact during muscle contraction.
• Describe the role of ATP and calcium signaling in muscle contraction.
• Understand the organization of sarcomeres and how cellular architecture affects contraction.+ Show more

Learning Objectives

• Identify key features of the solar system and the evidence supporting their characteristics.
• Understand how planetary compositions, densities, and surface features relate to planetary history.
• Analyze orbital patterns and the arrangement of planets to infer gravitational interactions during early solar system evolution.+ Show more

Learning Objectives

• Describe the stages and types of ecological succession, including primary and secondary succession.
• Explain how species traits and disturbances influence successional pathways.
• Analyze how succession impacts biodiversity and ecosystem stability.+ Show more

Learning Objectives

• Understand how multiple forces acting together influence an object's motion.
• Identify the effects of opposing forces and how they determine net force.
• Connect real-world examples like weight and friction to force patterns and velocity changes.+ Show more

Learning Objectives

• Understand how energy changes form during physical processes.
• Identify examples of energy transformations in real-world scenarios.
• Explain the law of conservation of energy in different contexts.+ Show more

Learning Objectives

• Describe what electric charge is and its properties.
• Differentiate between static electricity and current electricity.
• Identify effects of static and current charges in everyday life.+ Show more

Learning Objectives

• Identify and describe the four main tissue types: epithelial, connective, muscle, and nervous.
• Compare the structure and functions of different tissue types in organs.
• Explain how cellular arrangement and extracellular components influence tissue properties.

Learning Objectives

• Describe how electrical energy can transform into thermal, radiant, and mechanical energy in everyday devices
• Explain why energy losses occur and how efficiency affects how much useful energy we get
• Relate Alberta’s electricity generation and the power grid to real-world supply, demand, and performance

Learning Objectives

• Explain the concept of a free body diagram.
• Identify different forces acting on an object.
• Represent forces visually using vectors.+ Show more

Learning Objectives

• Explain how bulk flow and diffusion move nutrients, gases, and wastes through transport systems.
• Compare plant vascular transport (xylem and phloem) with animal circulatory transport (heart, vessels, and capillaries).
• Describe how structural features such as vessels, valves, and capillary beds support directional flow and efficient exchange.

Learning Objectives

• Understand how different energy sources affect the environment
• Analyze the long-term effects of energy-related technology choices
• Evaluate the environmental trade-offs of clean and traditional energy options

Learning Objectives

• Explain what a force is and how forces can change an object's motion (speed or direction)
• Identify force types (contact and non-contact) and describe examples from everyday situations
• Use qualitative reasoning to compare how larger vs. smaller net forces can affect motion and explain how opposing forces can cancel

Learning Objectives

• Understand different types of population growth curves including exponential, logistic, and cyclical patterns.
• Recognize factors such as food supply, predation, and carrying capacity that influence population dynamics.
• Link theoretical population models to real-world case studies like snowshoe hare–lynx cycles and insect outbreaks.+ Show more

Learning Objectives

• Understand classifications of pure substances and mixtures.
• Identify criteria used for classifying materials in environmental contexts.
• Analyze regional examples of substances and mixtures.+ Show more

Learning Objectives

• Explain how different tissue types work together to form an organ with specialized functions.
• Describe how an organ’s structure supports its role in transport, mechanical work, or chemistry.
• Use text evidence to identify main ideas and evaluate statements about tissue interactions.

Learning Objectives

• Explain how different tissue types work together to form an organ with specialized functions.
• Describe how organ architecture (layers, cell junctions, and transport channels) supports physiological tasks.
• Use tissue-level evidence to reason about organ-level properties that cannot be predicted from single cells alone.

Learning Objectives

• Understand the concept of balanced and unbalanced forces.
• Identify examples of static and dynamic equilibrium.
• Explain how balanced forces result in no change in motion.+ Show more

Learning Objectives

• Explain the process of muscle contraction at the cellular level.
• Identify the roles of actin, myosin, ATP, and calcium in muscle contraction.
• Describe how muscle structure influences contraction strength and speed.+ Show more

Learning Objectives

• Understand the components and functions of electrical power grids.
• Identify regional characteristics influencing energy generation.
• Explain grid operations including voltage conversion and losses.+ Show more

Learning Objectives

• Understand the origin and nature of magnetic fields from different sources.
• Identify how magnetic field lines represent strength and polarity.
• Explain how electromagnets are constructed and used in real-world applications.+ Show more

Learning Objectives

• Understand the basic principles of electric motors and generators.
• Identify how coil turns, flux strength, and load affect motor and generator efficiency.
• Describe real-world applications of motors and generators in regional infrastructure.+ Show more