Grade 8 Science Worksheets

Learning Objectives

• Understand the principles of force, motion, and energy in mechanical systems.
• Analyze how net force affects motion outcomes like speed and acceleration.
• Evaluate the efficiency of mechanical systems considering energy transfer and constraints.+ Show more

Learning Objectives

• Understand different inquiry models: hypothesis-driven, descriptive, and correlational
• Identify components of scientific models including assumptions, boundary conditions, and testable predictions
• Recognize the role of empirical evidence in refining scientific models+ Show more

Learning Objectives

• Understand the structure and function of alveoli and stomata in gas exchange.
• Explain how specialized cell shapes facilitate rapid diffusion of gases.
• Describe the principles of surface area and thin moist surfaces in maximizing gas diffusion.+ Show more

Learning Objectives

• Explain how conduction, convection, and radiation transfer thermal energy and how material properties affect each process.
• Describe insulation strategies and thermal resistance as factors that change the rate of heat flow.
• Connect macroscopic temperature differences to microscopic particle energy distributions.

Learning Objectives

• Explain the cycling of matter between living organisms and the abiotic environment.
• Describe the processes of photosynthesis, respiration, decomposition, and nutrient transformations.
• Trace atoms of carbon and water through various components of ecosystems.+ 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

• Define what a physical model is and identify its key features.
• Explain how physical models are used to represent real-world systems.
• Identify examples of physical models in scientific investigations.+ Show more

Learning Objectives

• Articulate a coherent model of the Earth–Sun–Moon system that explains cyclic phenomena such as lunar phases and eclipses.
• Understand the influence of relative positions, motions, axial tilt, and orbital geometry on observable sky patterns and calendar cycles.
• Describe the timing and sequence of lunar phases, eclipses, and seasonal changes based on the Earth's and Moon's positions.+ Show more

Learning Objectives

• Compare hypothesis-driven, descriptive, and correlational inquiry models.
• Identify the boundary conditions, assumptions, and testable predictions of each model.
• Analyze how different inquiry approaches are applied to predator–prey relationships or energy flow diagrams.+ Show more

Learning Objectives

• Describe different types of energy present in mechanical systems, especially kinetic and potential energy.
• Explain how energy is stored in springs and elevated masses.
• Understand energy conversion pathways between potential and kinetic energy.+ Show more

Learning Objectives

• Understand the concept of free-body diagrams
• Identify different types of forces such as normal force, tension, friction, and gravity
• Interpret and draw force diagrams for various systems+ Show more

Learning Objectives

• Explain how hydraulic systems convert input forces into larger output forces using pressure and area relationships.
• Calculate the mechanical advantage provided by piston assemblies in hydraulic devices.
• Identify factors affecting hydraulic system performance, including fluid viscosity, seal effectiveness, and compressibility.+ Show more

Learning Objectives

• Explain how engineering teams frame a design problem using a clear desired outcome, measurable goal, and problem context.
• Identify and describe constraints and criteria used to evaluate solutions during an engineering design challenge.
• Apply design-problem framing skills to create a complete problem statement for a real-world scenario.

Learning Objectives

• Understand how the relative positions of center of gravity and buoyancy influence stability of floating bodies.
• Explain how hull shape, weight distribution, and loading affect equilibrium and capsizing thresholds.
• Analyze the impact of design choices on righting moments and stability margins in small boats and cargo ships.+ Show more

Learning Objectives

• Understand how measurement, design choices, and data analysis are integrated in real-world scientific investigations.
• Develop skills in selecting appropriate variables and designing comparative procedures.
• Interpret graphical and statistical summaries to support scientific conclusions.+ Show more

Learning Objectives

• Use conservation of atoms to predict which products form from given reactants
• Balance simple chemical equations to match atoms on reactant and product sides
• Convert masses to moles and use balanced-equation coefficients to predict relative product amounts

Learning Objectives

• Explain how gravity and inertia work together to keep objects moving along orbital paths
• Describe centripetal acceleration and how it relates to curved motion in space
• Use evidence from planetary paths and comet trajectories to connect observations to gravitational principles

Learning Objectives

• Explain how particle motion relates to temperature and the states of matter for a pure substance.
• Use a temperature–time or heating curve idea to describe melting, boiling, and condensation as energy changes.
• Distinguish reversible physical state changes from changes that involve chemical composition.

Learning Objectives

• Understand the concept of pressure transmission in confined fluids as explained by Pascal's principle.
• Apply the hydraulic equation relating input and output forces and piston areas to solve problems.
• Explain real-world applications such as hydraulic presses and braking systems that utilize Pascal's principle.+ Show more

Learning Objectives

• Explain how human demand for land, water, air, and energy can change Earth’s natural cycles.
• Describe how extraction, pollution, and land conversion can lead to habitat loss and ecosystem degradation.
• Use cause-and-effect reasoning to connect resource use decisions to observable environmental impacts.

Learning Objectives

• Understand how energy enters ecosystems through photosynthesis.
• Explain the flow of energy through food chains and food webs.
• Describe how energy dissipates as heat at each transfer in an ecosystem.+ Show more

Learning Objectives

• Explain how technology choices affect people and the environment beyond immediate performance
• Evaluate trade-offs in a technology’s life cycle, including energy sources, materials, durability, and disposal
• Use evidence and criteria to judge whether a solution is more responsible overall

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

• Identify and differentiate between systematic and random errors in scientific measurements.
• Analyze measurement procedures for potential sources of error and uncertainty.
• Apply methods to quantify uncertainty, including significant figures, error margins, and propagation.+ Show more

Learning Objectives

• Identify different sources of measurement errors in scientific experiments.
• Differentiate between systematic and random errors and their impact on data accuracy.
• Understand methods for quantifying and propagating measurement uncertainty.+ 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 how relative velocity depends on the reference frame.
• Apply proportional relationships among speed, distance, and time in different scenarios.
• Analyze how objects moving in the same or opposite directions affect observed speeds.+ 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

• Understand the concept of integrated water management and its importance.
• Identify key governance instruments used in water management.
• Recognize the balance needed among municipal, agricultural, and ecological water demands.+ Show more

Learning Objectives

• Understand the distribution and classification of renewable and nonrenewable resources on Earth.
• Identify the impacts of resource extraction on landforms, water quality, and ecosystems.
• Describe methods for assessing Earth's resources such as mapping and inventories.+ Show more

Learning Objectives

• Understand the different levels and measurement of biodiversity in ecosystems.
• Identify key strategies used in conserving species, genetic, and ecosystem diversity.
• Evaluate the role of protected areas, habitat connectivity, and policy in biodiversity conservation.+ Show more

Learning Objectives

• Differentiate between point and nonpoint sources of pollution.
• Identify examples of various pollution sources such as industrial effluent and stormwater.
• Explain processes of nutrient enrichment, eutrophication, and oxygen depletion.+ Show more

Learning Objectives

• Understand the principles of analyzing test data to improve design performance.
• Identify performance trends, effective design characteristics, and trade-offs.
• Interpret graphical representations, statistical summaries, and calculations related to design refinement.+ Show more

Learning Objectives

• Describe the atomic composition of simple molecules and extended structures using particle models and symbolic formulas.
• Understand how to represent atoms, element symbols, and bonding arrangements in common examples such as water (H2O), carbon dioxide (CO2), and ionic lattices like sodium chloride.
• Explain how molecule diagrams and structural models convey the relative atom types and numbers.+ Show more

Learning Objectives

• Understand the components and scale of the solar system including planets, moons, and smaller bodies.
• Identify the characteristics and orbital features of terrestrial and gas giant planets.
• Explain the role of solar energy and gravity in planetary environments and motions.+ Show more

Learning Objectives

• Understand Archimedes' principle and how buoyant force relates to displaced fluid weight.
• Calculate buoyant force using fluid density, volume displaced, and gravitational acceleration.
• Explain the concepts of apparent weight, neutral buoyancy, and how objects behave in different fluids.+ Show more

Learning Objectives

• Explain how the fossil record provides evidence that life changes over long periods.
• Use comparisons between older and younger rock layers to support claims about organism change.
• Identify how anatomy similarities and differences can suggest evolutionary relationships.+ Show more

Learning Objectives

• Identify how physical property differences (particle size, solubility, boiling point, and magnetic susceptibility) are used to separate mixtures.
• Match common separation methods (filtration, evaporation, distillation) to the property they rely on.
• Explain why some separation methods work better than others for a given mixture in real-world contexts.

Learning Objectives

• Use balanced chemical equations to relate reactant and product quantities in a closed system.
• Apply the idea of mass conservation to check whether observed changes are reasonable.
• Identify limiting reactants and predict which substances determine the amount of product formed.

Learning Objectives

• Explain key components of integrated water resources management, including allocation, supply planning, and transboundary governance
• Describe how monitoring and adaptive management support trade-off decisions among municipal, agricultural, and ecological water needs
• Use examples of governance instruments (such as licensing and source-protection zones) to connect scientific evidence to policy choices

Learning Objectives

• Describe and distinguish conduction, convection, and radiation as three modes of thermal energy transfer.
• Use evidence from everyday situations to explain how heat moves from warmer to cooler regions.
• Connect particle motion and fluid motion to conduction and convection, and connect electromagnetic waves to radiation.+ Show more

Learning Objectives

• Explain how corrosion involves chemical change that forms new substances on materials.
• Identify how moisture and salinity affect corrosion rate and damage to structures.
• Describe protective measures that reduce corrosion by changing conditions or reactions.

Learning Objectives

• Explain how particle theory and phases help interpret chemical changes in environmental systems.
• Use mass conservation ideas to describe sources, sinks, and transport in a closed or semi-closed system.
• Classify substances as elements, compounds, or mixtures and relate this to environmental chemistry.+ Show more

Learning Objectives

• Define homogeneous mixtures and distinguish them from heterogeneous mixtures using observable evidence
• Use ideas of solubility and concentration to predict how mixture behaviour changes
• Explain how colligative properties depend on the number of solute particles in a solution+ Show more

Learning Objectives

• Identify and describe various types of chemical reactions.
• Understand the characteristic bond-making and bond-breaking patterns of each reaction type.
• Recognize examples of synthesis, decomposition, single and double displacement, and combustion reactions.+ Show more

Learning Objectives

• Identify the different types of evidence for physical and chemical changes.
• Distinguish between physical and chemical changes based on their evidence.
• Recognize real-world examples of physical and chemical changes.+ Show more

Learning Objectives

• Understand the concept of homogeneous mixtures and their properties.
• Identify examples of homogeneous mixtures in real-life contexts.
• Learn how solubility and concentration influence the behavior of solutions.+ Show more

Learning Objectives

• Understand the key factors that influence population size and distribution.
• Identify examples of population responses to abiotic and biotic factors in Alberta ecosystems.
• Explain the concepts of birth, death, immigration, and emigration rates in population dynamics.+ Show more