Grade 8 Science Worksheets

Learning Objectives

• Understand the factors that contribute to ecosystem resilience and stability.
• Identify the role of biodiversity and keystone species in ecosystems.
• Analyze how external disruptions affect ecological balance and recovery.+ Show more

Learning Objectives

• Explain how intermolecular forces affect melting point, boiling point, and vapour pressure.
• Connect intermolecular forces to solubility by comparing attractions between different particles.
• Use real-world Alberta examples to describe how force strength influences phase change and evaporation.

Learning Objectives

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

Learning Objectives

• Describe the interactions among various organ systems and their role in maintaining homeostasis.
• Explain how the circulatory, respiratory, digestive, nervous, and endocrine systems work together.
• Identify feedback mechanisms such as insulin-glucagon signaling and thermoregulation.+ Show more

Learning Objectives

• Identify the roles of independent, dependent, and controlled variables in a scientific study.
• Describe methods for collecting data that align with research questions.
• Explain the importance of control variables in reducing bias and confounding factors.+ Show more

Learning Objectives

• Understand how material properties affect energy storage and transfer in engineering systems.
• Analyze trade-offs among density, conductivity, reactivity, and thermal behavior for material selection.
• Compare chemical energy storage methods like batteries with thermal insulation in building applications.+ Show more

Learning Objectives

• Understand the criteria and constraints involved in defining engineering problems.
• Identify key stakeholder needs and acceptable failure modes in problem statements.
• Analyze trade-offs among time, cost, and durability in problem scenarios.+ Show more

Learning Objectives

• Explain how abiotic factors and biotic interactions can change population dynamics and food-web relationships.
• Analyze how human activities can interact with environmental change to affect ecosystem resilience and biodiversity.
• Use evidence from an integrated case to support trade-off decisions in conservation.

Learning Objectives

• Explain how energy can change form during physical processes while still being conserved
• Describe examples of mechanical-to-thermal energy conversion due to friction
• Describe examples of electrical-to-light and electrical-to-thermal energy conversion in household devices+ Show more

Learning Objectives

• Explain how calibration, repeatability, and uncertainty affect precision in measurements of motion and force.
• Estimate uncertainty and interpret data using appropriate units and significant figures.
• Apply careful reasoning to compare measurements from different instruments and conditions.

Learning Objectives

• Describe how igneous, sedimentary, and metamorphic rocks form under different conditions.
• Identify key mineral properties and what they reveal about mineral composition.
• Explain how the rock record connects Earth’s tectonic activity to geological changes.+ Show more

Learning Objectives

• Explain how engineering models connect inputs to expected outputs and support predictions.
• Describe how comparing prototype measurements with model predictions leads to model refinement.
• Use evidence from testing to justify changes to a model and improve design decisions.

Learning Objectives

• Identify factors that influence population size and distribution
• Explain how abiotic and biotic factors affect populations
• Analyze examples of population dynamics in Alberta ecosystems+ Show more

Learning Objectives

• Describe how green infrastructure manages stormwater using nature-based and engineered features.
• Explain how permeable surfaces, bioswales, rain gardens, vegetated buffers, and retention ponds reduce runoff and improve water quality.
• Identify design factors (soil media, slope, vegetation type, and storage volume) that influence the effectiveness of green infrastructure.

Learning Objectives

• Understand how energy flows through food chains and webs.
• Identify the roles of producers, consumers, and decomposers.
• Explain how energy transfer affects population sizes and community structure.+ Show more

Learning Objectives

• Understand how climate variation impacts temperature and precipitation patterns.
• Identify the effects of climate change on ecosystems and species interactions.
• Analyze the consequences of shifting species ranges and phenology.+ Show more

Learning Objectives

• Understand the main components of the human circulatory system
• Identify the function of the heart and blood vessels
• Explain how the circulatory system supports survival and growth+ Show more

Learning Objectives

• Explain how a pendulum transfers energy between gravitational potential energy and kinetic energy during its swing
• Describe how friction and air resistance affect the conservation of mechanical energy in real pendulums
• Relate changes in amplitude, mass, and length to a pendulum’s energy and/or period

Learning Objectives

• Define momentum and impulse and explain their relationship in collisions.
• Identify differences between elastic and inelastic collisions.
• Predict post-collision velocities in simple systems.+ Show more

Learning Objectives

• Explain how atmospheric pressure affects the boiling point of liquids
• Describe how pressure gradients influence the direction of airflow
• Interpret barometer changes as evidence of atmospheric pressure differences+ Show more

Learning Objectives

• Understand the classification of substances into pure substances and mixtures.
• Identify examples of different types of substances and mixtures in real-world contexts.
• Explain criteria used to distinguish between elements, compounds, and mixtures.+ Show more

Learning Objectives

• Describe the components and functions of the innate and adaptive immune systems.
• Identify cellular specializations involved in immune responses, such as phagocytes, lymphocytes, and antigen-presenting cells.
• Explain the role of lymphoid organs and circulatory pathways in organizing immune cell interactions.+ Show more

Learning Objectives

• Define what scientific models are and explain their purpose in science.
• Identify different types of scientific models such as diagrams, physical replicas, simulations, and mathematical relationships.
• Understand how models help explain, predict, and organize scientific information.+ Show more

Learning Objectives

• Explain how the centre of gravity and centre of buoyancy affect whether a floating object stays upright
• Describe how loading and hull shape influence stability, tipping, and capsizing thresholds
• Use basic stability relationships (relative positions and metacentric height) to predict upright equilibrium

Learning Objectives

• Explain how species interactions such as predation, competition, mutualism, and parasitism affect survival and reproduction.
• Describe how different interactions can change population sizes and community structure over time.
• Use evidence-based reasoning to predict how environmental conditions influence which species persist.

Learning Objectives

• Understand the basic concept of elastic forces and how they relate to springs.
• Identify examples of elastic components in mechanical systems.
• Explain the linear elastic behavior limits and the restorative force direction.+ Show more

Learning Objectives

• Identify the roles of sources, conductors, loads, and control elements in a simple electric circuit.
• Interpret schematic symbols for common circuit components and explain how they relate to real devices.
• Predict how switches affect continuity and how resistive elements convert electrical energy into heat.+ Show more

Learning Objectives

• Understand the concept of force as a push or pull that changes an object's motion.
• Identify different types of forces such as gravity, air resistance, and contact forces.
• Explain how multiple forces combine as a net force to influence motion.+ Show more

Learning Objectives

• Understand the concept of limiting factors in ecosystems.
• Identify examples of biotic and abiotic limiting factors.
• Explain how limiting factors affect population size and stability.+ Show more

Learning Objectives

• Explain the cycling of matter between living organisms and the abiotic environment.
• Describe the processes of photosynthesis, respiration, and decomposition in nutrient transfer.
• Trace atoms through biological and environmental reservoirs using examples of carbon and water.+ Show more

Learning Objectives

• Explain how atomic composition and arrangement influence the macroscopic properties of matter
• Use particle models to describe why the same element can have different properties when atoms form different structures
• Interpret diagrams and statements about atomic bonding, structure, and material behavior

Learning Objectives

• Explain Newton's three laws of motion and their cause-and-effect relationships.
• Quantitatively relate force, mass, and acceleration using F = ma.
• Describe inertia and action–reaction pairs in mechanical systems.+ Show more

Learning Objectives

• Understand the structure and function of cell membranes.
• Identify different mechanisms of membrane transport.
• Explain how membrane composition affects cellular activities.+ Show more

Learning Objectives

• Explain how energy flows through trophic levels from producers to consumers
• Describe how energy decreases as it moves along a food chain and why
• Use food chains and food webs to predict how energy can take multiple pathways+ Show more

Learning Objectives

• Learn to identify scientific claims and the evidence supporting them.
• Develop skills to evaluate the credibility of sources and data.
• Understand the difference between correlation and causation.+ Show more

Learning Objectives

• Use particle models and symbolic formulas to represent atoms in simple molecules and in ionic solids.
• Identify how molecule diagrams show relative atom types and numbers for compounds like H2O and CO2.
• Distinguish discrete molecular units from extended ionic lattices and relate structure to observable properties.

Learning Objectives

• Understand how human activities influence the atmosphere, hydrosphere, and geosphere
• Identify the effects of greenhouse gases on climate patterns
• Recognize how land-use changes impact ecosystems and water systems+ Show more

Learning Objectives

• Explain how invasive (non-native) species can disrupt ecosystems through competition, predation, and habitat change
• Describe how invasive species can affect biodiversity, hydrology, and energy or nutrient pathways
• Identify common invasion pathways and propose management actions that support long-term ecosystem resilience

Learning Objectives

• Understand the concept of predation and its role in ecosystems
• Identify different types of species interactions such as mutualism, parasitism, and competition
• Analyze how these interactions influence population dynamics and community structure

Learning Objectives

• Understand the basic concept of gravity and gravitational pull.
• Identify how mass and distance affect gravitational force.
• Learn about real-world phenomena influenced by gravity, such as planetary orbits and tides.+ Show more

Learning Objectives

• Understand and identify magnetic materials such as diamagnetic, paramagnetic, and ferromagnetic substances.
• Describe how microstructural properties influence magnetic behavior, including coercivity and remanence.
• Recognize applications of magnetic materials in industry, such as in transformers, electromagnets, and magnetic separation.+ Show more

Learning Objectives

• Explain how natural disturbances and long-term environmental changes can alter habitats and food availability.
• Describe how ecosystem change can lead to changes in species composition and succession over time.
• Evaluate how human actions can influence ecosystems and affect interconnected organisms.

Learning Objectives

• Understand the basic principles of ecological restoration
• Identify different restoration methods used in Alberta
• Recognize the importance of monitoring recovery metrics+ Show more

Learning Objectives

• Understand how pressure varies with depth on submerged surfaces.
• Calculate resultant forces acting on planar and curved surfaces in fluids.
• Analyze centers of pressure and their relevance in structural design.+ Show more

Learning Objectives

• Explain how motors convert electrical energy into mechanical motion using magnetic fields and current-carrying conductors
• Describe how generators convert mechanical motion into electrical energy through electromagnetic induction
• Identify factors that affect motor or generator performance, such as coil turns, magnetic flux strength, and electrical load+ Show more

Learning Objectives

• Define water potential and explain its role in osmotic regulation.
• Differentiate between hypotonic, isotonic, and hypertonic environments.
• Describe cellular responses to different osmotic conditions.+ Show more

Learning Objectives

• Describe the organization and functions of cellular components such as membranes, cytoplasm, the nucleus, mitochondria, and chloroplasts.
• Explain the relationship between membrane transport, compartmentalization, and cellular activity.
• Identify differences between prokaryotic and eukaryotic cells in terms of organelle presence and organization.+ Show more

Learning Objectives

• Explain how scientific knowledge about disease transmission evolves over time
• Identify the role of evidence in shaping and revising scientific theories
• Recognize examples of scientific theory changes in real-world contexts+ Show more