Grade 8 Science Worksheets

Learning Objectives

• Identify key components of an ecosystem
• Explain abiotic factors influencing ecosystems
• Describe the roles of producers, consumers, and decomposers+ Show more

Learning Objectives

• Understand how pollution affects ecosystems and nutrient cycles.
• Identify different types of pollutants and their sources.
• Assess the effects of excess nutrients on water systems.+ Show more

Learning Objectives

• Understand the concept of genetic diversity within and among populations.
• Identify factors influencing genetic variation and population resilience.
• Explain the importance of monitoring genetic indicators for conservation.+ Show more

Learning Objectives

• Understand methods to analyze and interpret quantitative data such as mean, median, mode, and rate calculations.
• Apply data analysis techniques to real-world scientific contexts like velocity, reaction rates, and density trends.
• Interpret graphs and analyze uncertainties, using statistical reasoning to evaluate hypotheses and support evidence-based conclusions.+ Show more

Learning Objectives

• Understand the principle of mass conservation in chemical reactions.
• Track atoms and mass before and after reactions in closed systems.
• Interpret symbolic chemical equations to demonstrate mass balance.+ Show more

Learning Objectives

• Understand how natural resources are transformed into synthetic materials.
• Identify the connection between source materials, molecular structure, and material properties.
• Explain environmental and resource considerations in material sourcing and modification.+ Show more

Learning Objectives

• Understand fundamental concepts of motion, including position, distance, speed, velocity, and acceleration.
• Differentiate between scalar and vector quantities related to motion.
• Interpret distance–time and velocity–time graphs with examples such as rolling balls and toy vehicles.+ Show more

Learning Objectives

• Understand factors influencing population size and distribution.
• Analyze growth patterns, oscillations, and carrying capacity.
• Examine case examples of invasive species and community recovery.+ Show more

Learning Objectives

• Analyze the relationships between air mass movements and weather changes using observational datasets.
• Identify the processes of frontogenesis and cyclogenesis and understand how they influence weather patterns.
• Explain how interactions of polar, tropical, and maritime air masses impact wind, temperature, humidity, and precipitation.+ Show more

Learning Objectives

• Identify multiple lines of evidence that support the idea that Earth’s lithospheric plates have moved over long periods of time.
• Explain how geologic patterns such as rock age, mountain belt alignment, and seafloor features relate to past plate motion.
• Interpret statements about plate boundaries and Earth history as true or false based on scientific evidence.

Learning Objectives

• Distinguish correlation from causation in scientific claims
• Evaluate whether evidence supports a causal claim using variable direction and consistency
• Identify alternative causes and explain what additional data would strengthen (or weaken) a conclusion

Learning Objectives

• Understand the concepts of friction and fluid drag as resistive forces opposing motion.
• Identify how surface types, speed, shape, and fluid properties influence these forces.
• Explain how resistive forces affect acceleration, steady motion, and energy transformation.+ Show more

Learning Objectives

• Understand the concept of momentum in physics
• Identify different types of collisions: elastic and inelastic
• Describe how momentum is conserved during collisions+ Show more

Learning Objectives

• Describe the main processes involved in the water cycle, including evaporation, condensation, precipitation, infiltration, and runoff.
• Explain the concept of water reservoirs and their residence times such as oceans, glaciers, and aquifers.
• Discuss how solar energy and gravity drive fluxes and seasonal redistribution of water across regions.+ Show more

Learning Objectives

• Explain how membrane structure helps control the movement of substances into and out of cells.
• Describe diffusion, osmosis, and facilitated transport using concentration differences and transport proteins.
• Compare active transport and bulk transport in terms of energy use and direction control.

Learning Objectives

• Understand the concept of biodiversity and its measurement.
• Identify ecological functions and ecosystem services.
• Evaluate strategies for species and habitat conservation.+ Show more

Learning Objectives

• Interpret motion information from distance–time and velocity–time graphs.
• Identify the significance of slope and area in analyzing motion profiles.
• Differentiate between uniform and accelerated motion using graphs.+ Show more

Learning Objectives

• Explain the role of primary producers in ecological energy pathways.
• Compare photosynthetic efficiency among grasses, shrubs, and boreal trees in Alberta.
• Identify factors influencing primary productivity such as soil nutrients and light.+ Show more

Learning Objectives

• Understand the components and interactions within physical and ecological systems.
• Explain how models and diagrams help in predicting system behaviors.
• Describe the conservation of mass and energy in different systems.+ Show more

Learning Objectives

• Understand the principles of buoyancy and stability in floating bodies
• Identify the factors affecting the stability of boats and ships
• Analyze how design choices influence safe trim and balance+ Show more

Learning Objectives

• Understand the basic functions of common simple machines such as levers, pulleys, inclined planes, wheels and axles, wedges, and screws.
• Explain how simple machines modify the force and distance in performing work.
• Identify everyday examples of simple machines and their configurations.+ Show more

Learning Objectives

• Explain how friction depends on surface type and normal force and how it affects motion and acceleration
• Describe how fluid drag depends on speed, shape, and fluid properties
• Use qualitative reasoning to predict how increasing resistive forces changes acceleration and steady motion

Learning Objectives

• Explain how habitat fragmentation and edge effects can change conditions for native species
• Analyze how land use (agriculture, urban development, infrastructure) alters hydrology, soil properties, and connectivity
• Use cause-and-effect reasoning to predict how fragmentation may isolate populations and reduce gene flow+ Show more

Learning Objectives

• Understand the role of keystone species in ecosystems
• Analyze interactions among organisms, abiotic factors, and human activities
• Evaluate how environmental changes affect population dynamics and food webs+ Show more

Learning Objectives

• Understand the different types of phase transitions and what drives them.
• Recognize how phase changes affect natural phenomena and human activities.
• Identify examples of phase transitions in Alberta's environment and infrastructure.

Learning Objectives

• Understand how mass influences the effect of net force on motion.
• Explain the inverse relationship between mass and acceleration for a given force.
• Compare the motion of objects with different masses when pushed with the same force.+ Show more

Learning Objectives

• Understand how friction and drag forces oppose motion and differ based on surface and fluid properties.
• Describe the factors influencing friction and fluid drag, including surface types, normal force, speed, shape, and fluid characteristics.
• Explain the energy transformations associated with resistive forces and the concept of terminal velocity.+ Show more

Learning Objectives

• Understand the energy transformations occurring in a pendulum swing.
• Identify factors influencing the period and energy distribution of a pendulum.
• Explain conservation of mechanical energy in ideal systems without dissipation.+ Show more

Learning Objectives

• Understand how net force influences the acceleration of an object.
• Explain the relationship between mass and acceleration when a force is applied.
• Predict how changes in force and mass affect motion using qualitative reasoning.+ Show more

Learning Objectives

• Identify and describe biotic components in ecosystems
• Identify and describe abiotic components in ecosystems
• Understand how resources flow between components+ Show more

Learning Objectives

• Explain the mechanisms of plate tectonics including seafloor spreading, magnetic striping, and paleomagnetic records.
• Describe the processes of subduction, rifting, continental collision, and uplift that lead to landform changes.
• Identify landforms such as mountains, ocean basins, and volcanic arcs that result from plate movements.+ Show more

Learning Objectives

• Describe the basic components of an atom and their functions.
• Differentiate between elements, compounds, and mixtures.
• Explain how atomic arrangement influences the properties of substances.+ Show more

Learning Objectives

• Understand how to prioritize among competing constraints in project decisions
• Apply multi-criteria decision methods like weighted scoring and pareto comparisons
• Evaluate tradeoffs involving performance, manufacturability, and sustainability+ Show more

Learning Objectives

• Understand the relationship between atmospheric conditions and weather changes.
• Interpret surface pressure maps, temperature gradients, and Doppler radar data.
• Explain processes like frontogenesis and cyclogenesis and their effects on weather.+ Show more

Learning Objectives

• Understand methods for determining the density of solids and liquids.
• Identify tools such as balances, graduated containers, and overflow procedures.
• Analyze how measurement uncertainties and significant figures affect density calculations.+ Show more

Learning Objectives

• Understand the components and functions of electrical power grids.
• Identify regional characteristics affecting power generation sources.
• Explain grid operations such as voltage stepping and energy losses.+ Show more

Learning Objectives

• Understand the development and evaluation of multiple design concepts using selection criteria.
• Identify measurable performance indicators for solution comparison.
• Differentiate qualitative and quantitative assessments in solution analysis.+ Show more

Learning Objectives

• Understand the purpose of balancing chemical equations using coefficients.
• Identify how coefficients reflect mole ratios without changing chemical formulas.
• Learn how to interpret and balance chemical equations to conserve atoms and mass.+ Show more

Learning Objectives

• Analyze fossil, anatomical, embryological, and molecular evidence to interpret evolutionary relationships.
• Identify patterns of unity and diversity across different data types over deep time.
• Evaluate the significance of transitional fossils, homologous structures, conserved developmental stages, and DNA sequence similarities.+ Show more

Learning Objectives

• Explain how pressure gradients, vessel diameter, and viscosity affect blood flow rate
• Describe how non-Newtonian behavior of blood can change effective resistance in vessels
• Relate systolic/diastolic pressure differences to arterial function and flow over a heartbeat+ Show more

Learning Objectives

• Explain how energy transfer during phase changes affects particle arrangement and motion
• Differentiate melting, freezing, evaporation, and condensation in terms of what happens to particles
• Identify which phase change involves energy being absorbed versus energy being released

Learning Objectives

• Explain how scientific models represent systems that are too small, too large, or too complex to observe directly.
• Identify different types of scientific models (diagrams, replicas, simulations, mathematical relationships) and match them to real examples.
• Describe how evidence is used to test models and how models are revised when new data disagree.

Learning Objectives

• Understand the concept of systematic errors in experiments
• Identify common sources of experimental error
• Explain how instrument limitations can affect measurement accuracy+ Show more

Learning Objectives

• Explain how Integrated Water Resources Management (IWRM) balances municipal, agricultural, and ecological water demands.
• Identify governance tools used in IWRM, including source-protection zones, licensing, and watershed-scale planning.
• Describe how monitoring and adaptive management support better water decisions over time.+ Show more

Learning Objectives

• Explain how particle motion, temperature, and energy transfer influence states of matter and phase changes.
• Describe the microscopic particle behaviors during melting, boiling, and condensation.
• Relate macroscopic measurements of temperature and heat flow to microscopic particle motion.+ Show more

Learning Objectives

• Explain how free-body diagrams represent all forces acting on an object as vectors
• Distinguish between balanced and unbalanced net forces and predict motion accordingly
• Identify and draw contact and non-contact forces (normal force, tension, friction, and gravity)+ Show more

Learning Objectives

• Describe the main patterns of atmospheric and oceanic circulation including Hadley, Ferrel, and polar cells.
• Explain how Earth's rotation affects wind patterns via the Coriolis effect.
• Understand the role of ocean gyres and heat transport in regional climate systems.+ Show more

Learning Objectives

• Understand Newton's three laws of motion
• Describe how force, mass, and acceleration are related
• Apply Newton's second law (F = ma) to different systems+ Show more