Grade 8 Science Worksheets

Learning Objectives

• Understand the development and evaluation of multiple design concepts based on criteria and constraints.
• Differentiate solutions using sketches, trade-off matrices, and qualitative versus quantitative assessments.
• Analyze how functional requirements align with feasible materials and document benefits and limitations.+ Show more

Learning Objectives

• Describe how energy exchange causes matter to change between solid, liquid, and gas during phase transitions.
• Identify examples of melting, freezing, vaporization, and condensation in everyday Alberta contexts.
• Explain how pressure and energy changes affect particle arrangement and phase behavior.+ Show more

Learning Objectives

• Describe how predation, competition, mutualism, and parasitism affect survival and reproduction
• Explain how interactions between species can change population size over generations
• Use evidence from a passage to identify relationships that increase or decrease survival+ Show more

Learning Objectives

• Interpret natural hazard data using earthquake catalogs, fault maps, and eruption histories to understand patterns over time and space.
• Explain how paleoseismology, satellite geodesy, and tsunami records help estimate recurrence intervals and hazard likelihood.
• Use statistical and geospatial reasoning to describe potential impacts and evaluate engineering, land-use, and early-warning choices.

Learning Objectives

• Identify measurable physical properties of matter, including density, solubility, melting point, boiling point, and conductivity.
• Compare substances using quantitative information such as mass, volume, and temperature.
• Explain how physical properties help classify and separate materials in lab and everyday situations.

Learning Objectives

• Explain how energy is transferred between trophic levels and why energy decreases at each step.
• Use typical efficiency ranges to estimate how much energy becomes available to higher trophic levels.
• Describe how energy availability influences biomass pyramids, population sizes, and biodiversity in different ecosystems.

Learning Objectives

• Explain how energy transfer is involved in phase changes such as melting, freezing, evaporation, and condensation.
• Describe particle-level arrangements and motion during different phase changes.
• Use evidence from everyday examples (ice melting, water droplets forming) to identify the phase change occurring.

Learning Objectives

• Distinguish short-term weather patterns from long-term climate patterns using data records
• Interpret graphs and summary statistics to identify variability versus change over time
• Explain how precipitation, temperature, and storm frequency can differ from day-to-day to decade-to-decade

Learning Objectives

• Explain why scientists compare multiple lines of evidence when evaluating changes in global temperature over time.
• Distinguish between natural and anthropogenic climate drivers (greenhouse gases, volcanic aerosols, and solar variability).
• Describe how climate feedbacks can amplify or reduce warming and why models are used to test hypotheses.

Learning Objectives

• Understand the functions of different organ systems in maintaining homeostasis.
• Identify how organ systems collaborate to support survival needs like nutrient intake, gas exchange, and movement.
• Explain the relationship between structure and function in various organs.+ Show more

Learning Objectives

• Explain how thin, moist surfaces facilitate gas exchange in organisms.
• Identify structures involved in gas exchange such as alveoli and stomata.
• Describe how cellular adaptations support efficient diffusion of gases.+ Show more

Learning Objectives

• Explain how diffusion drives gas exchange between the environment and internal fluids.
• Describe how thin, moist surfaces and large surface area increase the rate of gas exchange.
• Identify gas-exchange adaptations in lungs and leaves and relate them to function.

Learning Objectives

• Understand how to define criteria and constraints for engineering problems.
• Identify measurable performance goals, safety, and environmental considerations.
• Analyze trade-offs among time, cost, and durability in problem scenarios.+ Show more

Learning Objectives

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

Learning Objectives

• Understand key concepts of population dynamics including exponential growth, logistic regulation, and cyclical fluctuations.
• Link theoretical population curves to real-world case studies like snowshoe hare–lynx cycles and forest insect outbreaks.
• Explain how carrying capacity, reproductive strategies, and time lags influence population trajectories.+ Show more

Learning Objectives

• Explain how the phospholipid bilayer forms a selective barrier for cells
• Identify the roles of integral and peripheral membrane proteins in transport, signaling, and structural support
• Describe how cholesterol, carbohydrates, and membrane fluidity affect permeability and cell interactions+ Show more

Learning Objectives

• Explain Newton’s third law using action–reaction force pairs acting on two different objects
• Identify that action–reaction forces are equal in magnitude, opposite in direction, and occur at the same time
• Predict how different masses change acceleration even when force magnitudes are equal

Learning Objectives

• Identify independent, dependent, and controlled variables in a science scenario.
• Recognize how a fair test keeps some variables constant while changing one factor.

Learning Objectives

• Identify major atmospheric circulation cells
• Explain how ocean currents affect regional climates
• Analyze the influence of planetary rotation on wind patterns+ Show more

Learning Objectives

• Explain how mechanical energy changes between kinetic and potential forms during motion.
• Describe how applied force and displacement relate qualitatively to the energy transferred to an object.
• Connect real-world examples (elevators, skiing, braking) to work done by forces on a system.

Learning Objectives

• Identify independent, dependent, and controlled variables in experiments.
• Understand the importance of fair testing and proper controls.
• Describe factors influencing reproducibility and accuracy in scientific investigations.+ Show more

Learning Objectives

• Explain how pressure in a confined fluid can transmit force in a hydraulic system
• Use the force–area relationship to determine output force and input pressure in piston assemblies
• Evaluate how design factors (viscosity, seals, and compressibility) affect hydraulic performance+ Show more

Learning Objectives

• Explain how static and kinetic friction affect motion and energy loss in real systems.
• Describe how normal force and surface texture influence the size of frictional forces.
• Evaluate how aerodynamic drag changes the performance of moving objects.

Learning Objectives

• Understand the basic concepts of fluid flow and pressure
• Learn how Bernoulli's principle relates fluid speed and pressure
• Apply Bernoulli's principle to real-world scenarios like airfoils and piping+ Show more

Learning Objectives

• Identify and describe the main components of DNA.
• Explain how DNA sequences determine protein structure.
• Understand how gene mutations can alter traits.+ Show more

Learning Objectives

• Understand key elements of scientific communication
• Identify clear explanations supported by evidence
• Apply the claim–evidence–reasoning structure in scientific writing+ Show more

Learning Objectives

• Explain how conservation approaches like protected areas, restoration, and habitat corridors help maintain biodiversity and ecosystem stability.
• Describe how sustainable resource management and threat reduction (pollution, overharvesting) increase long-term resilience.
• Evaluate conservation effectiveness using monitoring and adaptive management.

Learning Objectives

• Explain the concepts of friction and fluid drag as resistive forces opposing motion.
• Identify factors influencing friction and drag, such as surface types, speed, and fluid properties.
• Describe how resistive forces convert mechanical energy into thermal energy.+ Show more

Learning Objectives

• Understand how to interpret the slope of distance-time graphs to determine speed
• Connect graphical representations with concepts of motion and rate of change
• Identify the relationship between the slope of a graph and the physical quantity it represents+ Show more

Learning Objectives

• Understand the purpose and components of free-body diagrams
• Identify different types of forces acting on objects
• Draw basic free-body diagrams for systems under contact and non-contact forces+ Show more

Learning Objectives

• Explain how simple machines change forces and motion by using mechanical advantage and work concepts
• Describe ideal vs. real machine behavior, including efficiency and frictional losses
• Connect examples (levers, pulleys, gears, winches, bicycles, seesaws) to input/output forces and distances

Learning Objectives

• Explain how major cell organelles contribute to energy conversion, protein synthesis, and material transport.
• Describe the interdependence of organelles by linking structure to function.
• Predict how organelle dysfunction can affect overall cell performance.

Learning Objectives

• Understand what components make up a simple scientific model
• Learn how models are used to predict outcomes in scientific phenomena
• Recognize the importance of assumptions in scientific models+ Show more

Learning Objectives

• Describe the main processes of the water cycle and how they move water through Earth systems
• Explain how the Sun provides energy and gravity helps move water through the cycle
• Connect water-cycle processes to weather and environmental impacts

Learning Objectives

• Explain how hydrostatic pressure depends on fluid density and depth using p = ρgh
• Compare pressure at different heights in a fluid and predict where the pressure is greatest
• Describe how hydrostatic pressure principles apply to communicating vessels and real structures

Learning Objectives

• Understand what genes are and how they influence traits
• Identify how genes are inherited from parents
• Learn about different alleles and their roles in inheritance+ Show more

Learning Objectives

• Use SI units to measure and report length, mass, volume, and temperature correctly.
• Convert units using dimensional analysis and appropriate conversion factors.
• Determine the number of significant figures in measurements and explain why accuracy and precision matter.

Learning Objectives

• Identify key components of basic electric circuits
• Understand the function of sources, conductors, loads, and control elements
• Recognize schematic symbols for circuit components+ Show more

Learning Objectives

• Explain how different tissues work together to form an organ with a specific function.
• Describe how organ architecture (layering, junctions, and channels) supports efficient performance.
• Use organ formation concepts to predict how tissue interactions create organ-level properties.

Learning Objectives

• Understand how gravitational force depends on mass and distance.
• Explain why objects with larger mass exert stronger gravity.
• Describe how increasing distance decreases gravitational attraction.+ Show more

Learning Objectives

• Understand how properties such as pH, conductivity, density, and refractive index change during chemical reactions.
• Learn how property shifts serve as evidence of chemical changes beyond visual cues.
• Differentiate between physical mixing and true chemical transformation using property measurements.+ Show more

Learning Objectives

• Explain how atmospheric pressure affects boiling temperature and sealed systems
• Describe how barometers measure air pressure and how weather instruments use pressure differences
• Predict how pressure changes with altitude and how pressure gradients drive wind

Learning Objectives

• Explain how porosity, permeability, and hydraulic head control groundwater storage and movement.
• Distinguish between confined and unconfined aquifers and identify recharge and discharge zones.
• Relate sediment and bedrock properties to groundwater velocity, well yield, and contamination risk.

Learning Objectives

• Explain how the centre of gravity (CG) and centre of buoyancy (CB) affect whether a floating body returns upright.
• Describe the role of metacentric height (GM) in upright equilibrium and righting moments.
• Predict how loading and trim can increase or decrease stability and the risk of capsizing.

Learning Objectives

• Understand mathematical representations of population growth, including exponential and logistic models.
• Identify factors that influence population size such as resources, predation, and environmental capacity.
• Interpret graphical population curves and relate them to real-world scenarios like predator-prey cycles.+ Show more

Learning Objectives

• Understand the proportional relationship between force and displacement in springs.
• Identify real-world examples of elastic forces in mechanical systems.
• Explain the concepts of linear elastic behavior limits and restorative forces.+ Show more

Learning Objectives

• Identify and describe the main types of rocks: igneous, sedimentary, and metamorphic.
• Understand the processes involved in the rock cycle such as melting, cooling, sedimentation, compaction, and metamorphism.
• Recognize how geological features like strata, fossils, and radiometric dating provide evidence of Earth's history.+ Show more

Learning Objectives

• Explain how earthquake locations relate to plate boundaries and fault zones.
• Describe how seismic data patterns can provide evidence of Earth’s internal structure and ongoing tectonic motion.
• Use wave behavior to reason about why seismic observations are not random around the globe.