Grade 7 Science Worksheets

Learning Objectives

• Explain how vapour pressure and boiling point differences enable separation in simple distillation
• Describe the roles of heating, vapour formation, condensation, and collection in distillation
• Compare simple distillation and fractional distillation for separating volatile components+ Show more

Learning Objectives

• Identify how loads transfer through common structural elements (slabs/decks to beams, columns, trusses, and foundations).
• Differentiate dead loads and live loads in real-world structures.
• Recognize tension, compression, and shear forces in typical members and at connections.

Learning Objectives

• Compare scaled physical models, digital finite-element models, and laboratory load rigs for evaluating strength, stiffness, and failure modes.
• Explain how strain gauges and displacement transducers help quantify a structure’s response during testing.
• Identify limitations of scaling, including effects of material heterogeneity and joint behavior.

Learning Objectives

• Explain how decomposition, detritivores, fungi, bacteria, and abiotic factors work together to recycle nutrients.
• Describe carbon and nitrogen transformations during decomposition and how these nutrients move between pools.
• Connect decomposition rates to soil fertility and primary productivity in ecosystems such as wetlands, forests, and grasslands.

Learning Objectives

• Explain the design process from requirements and constraints to concept generation and selection.
• Describe how performance objectives (such as load capacity, stiffness, and serviceability) guide design decisions.
• Use criteria, trade-off analysis, and decision matrices to compare alternatives and justify a preferred solution.+ Show more

Learning Objectives

• Differentiate pure substances from mixtures based on composition and uniformity
• Classify examples as elements, compounds, or mixtures using characteristic properties
• Explain how variable properties in mixtures affect identification and everyday material choices

Learning Objectives

• Identify how structural members respond to applied loads through bending, shear, axial force, and torsion.
• Relate geometry and support conditions to internal force distribution in beams and cantilevers.
• Explain how bending moment and shear force affect deflection and serviceability.+ Show more

Learning Objectives

• Explain the role of reference conditions and success indicators in ecological restoration
• Compare active and passive restoration approaches and describe why monitoring matters
• Describe how habitat connectivity and genetic considerations influence species selection and corridor design+ Show more

Learning Objectives

• Explain how evaporation and cooling lead to crystallization and salt/sugar recovery from solutions
• Describe nucleation and crystal growth and how impurities affect crystal purity and size
• Use factors such as evaporation rate and cooling profile to predict crystal morphology and yield

Learning Objectives

• Describe the major organ systems involved in circulation, respiration, digestion, and nervous regulation in multicellular animals.
• Explain how different organ systems cooperate to maintain homeostasis and support gas exchange, nutrient distribution, and feedback mechanisms.
• Compare the organ system interactions in human mammals and plant vascular transport systems.+ Show more

Learning Objectives

• Explain the concept of equilibrium as the balance of forces in an object.
• Differentiate between static and dynamic equilibrium with real-world examples.
• Describe the roles of normal, gravitational forces, tension, and net zero acceleration in equilibrium.+ Show more

Learning Objectives

• Understand how to systematically evaluate different design solutions through modeling and analysis.
• Identify and quantify trade-offs among performance, cost, durability, and manufacturability in engineering solutions.
• Apply metrics and model-based reasoning to rank design options and recognize limitations without final optimization.

Learning Objectives

• Understand various methods for testing material behavior, including tensile, compression, and bending assessments.
• Recognize non-destructive testing techniques such as ultrasonic and hardness measurements.
• Explain the concepts of anisotropy, strain localization, and the importance of safety factors and design codes in material testing.+ Show more

Learning Objectives

• Understand models that represent potential energy stored in systems as a function of object arrangement and interactions at a distance.
• Identify examples of gravitational, elastic, and magnetic potential energy.
• Explain how changes in spatial arrangement alter stored energy and influence motion or work.+ Show more

Learning Objectives

• Analyze experimental data to identify patterns and inform design decisions
• Refine design parameters iteratively based on quantitative comparisons
• Justify modifications with evidence to improve performance within constraints+ Show more

Learning Objectives

• Understand internal force paths in truss structures.
• Identify and differentiate tension and compression members in trusses.
• Analyze common truss forms used in bridges and roofs.+ Show more

Learning Objectives

• Analyze evidence for climate change drivers such as greenhouse gas concentrations, land-use change, and natural variability.
• Assess impacts of climate change on sea-level rise, precipitation patterns, and agricultural productivity.
• Interpret temperature and CO2 records, and understand carbon-cycle exchanges.+ Show more

Learning Objectives

• Compare embryonic development stages across different taxa to identify conserved features.
• Describe morphological similarities such as pharyngeal pouch formation and limb bud development in vertebrates.
• Explain how developmental timing and patterning support phylogenetic reconstructions.+ Show more

Learning Objectives

• Articulate the reasoning linking changes in an object's motion energy to energy transfers into or out of the object.
• Identify real-world scenarios involving energy transfer, such as braking cars, inelastic collisions, and bouncing balls.
• Analyze and support qualitative and quantitative examples of energy bookkeeping related to motion energy changes.+ Show more

Learning Objectives

• Understand how atomic matter is conserved and cycled through organisms during digestion, biosynthesis, and respiration.
• Describe the flow of carbon and nitrogen in biological processes.
• Identify key biochemical pathways involved in matter recycling within organisms.+ Show more

Learning Objectives

• Describe the steps involved in the formation of sedimentary rocks.
• Explain the process of weathering, transport, and deposition of sediments.
• Identify different depositional environments and their characteristics.+ Show more

Learning Objectives

• Construct and interpret graphical relationships between kinetic and potential energy, mass, and speed.
• Analyze how doubling mass or speed affects kinetic energy in different motion examples.
• Apply energy calculations and analyze graphs to understand motion and energy relationships.+ Show more

Learning Objectives

• Understand the principles of lever classes and pulley systems in reducing effort.
• Explain how torque, fulcrum placement, and mechanical advantage relate through geometry.
• Apply simple arithmetic to determine effort and load relationships in common lever and pulley setups.+ Show more

Learning Objectives

• Observe plant epidermis, animal epithelial tissue, and protists under a microscope to identify cellular structures.
• Compare cellular features such as cell boundaries, plasma membranes, and cell walls.
• Distinguish between unicellular and multicellular organisms based on microscopic observations.+ Show more

Learning Objectives

• Understand the kinetic particle model and how it explains thermal phenomena.
• Distinguish between heat transfer methods: conduction, convection, and radiation.
• Analyze regional examples of thermal exchanges in Alberta's climate.

Learning Objectives

• Understand the principles of chromatographic separation and the roles of stationary and mobile phases.
• Identify the different types of chromatography, such as paper and thin-layer chromatography, and their applications.
• Interpret retention factors and resolution in chromatography analysis.+ Show more

Learning Objectives

• Understand how physical and biological disturbances influence population dynamics, community composition, and ecosystems.
• Recognize examples such as wildfire, flooding, invasive species, and disease outbreaks and their effects.
• Explain mechanisms of resilience, resistance, and succession in ecosystem recovery.+ Show more

Learning Objectives

• Understand how to clearly define design problems with measurable constraints.
• Learn to translate societal and environmental needs into specific, quantitative criteria.
• Recognize real-world examples of problem specification for effective solution development.+ Show more

Learning Objectives

• Understand the key physical and chemical processes that shape Earth's surface.
• Identify landforms and features associated with different surface processes.
• Describe driving forces like water flow, wind, glaciers, and gravity in surface change.+ Show more

Learning Objectives

• Identify observable signs that indicate a chemical change has occurred.
• Explain at particle level how bonds break and form during chemical reactions.
• Differentiate between physical and chemical changes based on evidence.+ Show more

Learning Objectives

• Describe the structure and stratification of freshwater systems such as ponds and lakes.
• Explain how oxygen gradients, light penetration, and seasonal changes affect community composition.
• Understand ecological phenomena like thermal turnover and their impact on habitat resources.+ Show more

Learning Objectives

• Analyze the transfer of energy through trophic levels in various ecosystems.
• Understand and calculate trophic efficiency percentages and biomass pyramid patterns.
• Describe the process of solar energy capture by primary producers and energy loss through respiration and heat.+ Show more

Learning Objectives

• Understand the processes involved in decomposition and nutrient cycling.
• Identify the roles of detritivores, fungi, and bacteria in matter breakdown.
• Describe the transformations of carbon and nitrogen during decomposition.+ Show more

Learning Objectives

• Understand the process of simple distillation and its basis on boiling point differences
• Describe how vapour pressure influences separation during distillation
• Identify limitations of simple distillation with close-boiling mixtures and azeotropes+ Show more

Learning Objectives

• Understand how disturbances like fire, flood, landslide, and windthrow affect ecosystems.
• Explain the concepts of disturbance frequency, intensity, and spatial scale in ecological processes.
• Identify species adaptations related to disturbance regimes and their effects on population dynamics.+ Show more

Learning Objectives

• Understand the key steps in the technological design process, including problem definition, brainstorming, prototyping, and evaluation.
• Recognize how iteration and optimization improve design solutions through measurement and documentation.
• Identify examples of design trade-offs, such as in simple mechanisms, water filtration prototypes, and electrical circuits.+ Show more

Learning Objectives

• Understand the importance of safety standards and codes in technological practices.
• Identify key safety considerations such as load ratings, grounding, and protective measures.
• Explain the rationale behind safety margins and inspection protocols to ensure reliable performance.

Learning Objectives

• Understand the concept of specific heat capacity and its units.
• Calculate the amount of energy required to change the temperature of a substance using mass, specific heat, and temperature change.
• Apply unit conversions and interpret tabular data to solve thermal energy problems.+ Show more

Learning Objectives

• Understand the principles of calorimetry and how temperature changes relate to energy transfer.
• Apply calorimetric reasoning to calculate energy exchange in Joules.
• Connect observed temperature shifts to heat release and absorption scenarios.+ Show more

Learning Objectives

• Understand the different types of adaptations organisms develop to survive in specific environments.
• Identify examples of structural, physiological, and behavioral adaptations.
• Explain how environmental factors like temperature, moisture, and predation influence adaptations.+ Show more

Learning Objectives

• Describe Earth's internal layering including crust, mantle, outer core, and inner core.
• Interpret seismic wave behavior and what it reveals about Earth's interior.
• Explain mantle convection and its role in plate motion.+ Show more

Learning Objectives

• Understand the ecological impacts caused by invasive species.
• Identify pathways and factors facilitating the establishment of non-native species.
• Analyze the long-term consequences of invasive species on native ecosystems and economies.+ Show more

Learning Objectives

• Understand the key practices involved in conceptual and computational modeling.
• Identify the importance of assumptions, scaling, and validation in models.
• Recognize examples of simple numerical models such as population and motion simulations.+ Show more

Learning Objectives

• Understand common failure modes such as buckling, fatigue cracking, shear and bending fracture, and foundation failures.
• Explain how limit states design philosophy, safety factors, and redundancy help mitigate failure risks.
• Relate real-world examples like bridge deck delamination and column buckling to failure mechanisms and their causes.

Learning Objectives

• Understand the fundamental concepts of thermal energy and temperature.
• Differentiate between internal energy and temperature as measures of particle movement.
• Identify sources of thermal energy in natural and artificial environments.+ Show more

Learning Objectives

• Understand the roles of producers and consumers in an ecosystem.
• Explain how energy is transferred between trophic levels.
• Identify the constraints on energy transfer within a food chain.+ Show more

Learning Objectives

• Understand the processes involved in the rock cycle, including lithification, metamorphism, and magmatism.
• Identify methods of relative and absolute dating such as index fossils and radiometric decay.
• Interpret stratigraphic sequences and depositional environments to infer Earth's past tectonic and climatic conditions.+ Show more

Learning Objectives

• Explain the concept of mechanical energy and how it is conserved in ideal systems.
• Describe energy transfer processes in simple systems like pendulums and springs.
• Identify real-world examples where energy is conserved or lost to nonmechanical forms.+ Show more