Grade 7 Worksheets

Learning Objectives

• Describe how community teamwork, technology, and resources support missing-child search efforts.
• Use evidence from a text to explain the value of civic awareness and social responsibility.
• Identify key safety actions people can take when they are concerned about a missing child.

Learning Objectives

• Explain how food availability and breeding needs drive seasonal and annual migration patterns.
• Describe how timing cues and energetic demands influence when organisms move between habitats.
• Interpret how migratory connectivity links ecosystems and supports biodiversity across regions.

Learning Objectives

• Explain why free journalism matters to democratic societies and public accountability.
• Describe key values behind ethical reporting, such as transparency and accuracy.
• Identify ways journalists can responsibly share information and protect truth.

Learning Objectives

• Write a personal reflection connecting the meaning of family to emotional bonds, responsibilities, and celebrations.
• Use cultural traditions to explain how family values and roles are shaped over time.
• Identify and apply reflection techniques from examples to improve clarity, empathy, and organization.

Learning Objectives

• Explain why long-term ecological monitoring uses standardized sampling protocols
• Identify common monitoring methods (fixed-site surveys, point counts, remote sensing, and water quality sampling)
• Describe how sampling design, temporal replication, and data quality improve the reliability of ecological trends+ Show more

Learning Objectives

• Explain how birth and death rates, immigration and emigration, and abiotic constraints affect population size and distribution
• Describe how regional factors (such as seasonal water, fire regimes, disease, and land-use change) can cause population fluctuations
• Use population trends to reason about local extirpations and expansions

Learning Objectives

• Describe how wetlands regulate water at the landscape scale through storage, slow release, and flood buffering.
• Explain how wetlands support ecosystem services through nutrient cycling and filtration.
• Identify how wetland type (e.g., peatlands vs. marshes) relates to different habitats and biological functions.+ Show more

Learning Objectives

• Explain equilibrium in terms of net force being zero and how it affects motion
• Distinguish static equilibrium from dynamic equilibrium using real-world examples
• Interpret and describe force diagrams qualitatively (direction and relative size) to identify balanced forces+ Show more

Learning Objectives

• Explain how beam behavior includes bending, shear, and deflection under different loads.
• Identify how span, support conditions, and span-to-depth ratio affect beam stiffness and safety.
• Use vocabulary from beam loading scenarios to judge whether a design meets service stability and comfort needs.

Learning Objectives

• Define forces as interactions that can change an object’s motion.
• Distinguish contact forces from non-contact forces using real examples.
• Explain how net force affects acceleration and motion.+ Show more

Learning Objectives

• Translate distance–time and speed–time data into correctly labeled graphs and interpret what the curves mean
• Use slope to explain changes in motion, including how faster speeds relate to steeper lines on graphs
• Determine average and instantaneous rates from motion graphs and connect these to real situations

Learning Objectives

• Explain how integrated systems analysis connects forces, motion, and structural safety when comparing design options.
• Use mechanical advantage and simple reasoning about motion to predict how design changes affect performance.
• Evaluate structural factors such as deflection and safe stress levels under wind, snow, and load conditions.+ Show more

Learning Objectives

• Describe motion using distance and time, and identify appropriate units for each quantity
• Calculate average speed using the relationship speed = distance ÷ time
• Recognize common sources of measurement error and explain how they affect calculated speed+ Show more

Learning Objectives

• Identify examples of the six simple machines and describe how each one changes force magnitude or direction
• Explain mechanical advantage as a comparison of output force to input force, using appropriate units and reasoning
• Apply relationships among force, distance, and machine geometry to predict outcomes for everyday tools

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 how tensile, compression, and bending tests reveal key material properties and how these properties guide engineering decisions.
• Describe non-destructive testing (NDT) methods such as ultrasonic testing and hardness measurements and why they are useful.
• Identify sources of variability in materials (e.g., anisotropy and strain localization) and explain how design codes and safety factors address them.

Learning Objectives

• Define and compare key material properties: density, tensile strength, compressive strength, stiffness (modulus), ductility, toughness, and thermal expansion.
• Explain how material properties influence structural performance, including deformation, serviceability, and durability.
• Contrast wood, steel, and reinforced concrete by strength-to-weight ratio, deformation under load, and typical failure modes.

Learning Objectives

• Explain how particle motion changes with temperature and how those changes lead to thermal expansion, contraction, phase changes, and viscosity variations.
• Describe how thermal effects connect microscopic behavior to macroscopic changes in volume, density, and pressure.
• Predict practical consequences of thermal cycling for material selection, engineering design, and environmental systems.

Learning Objectives

• Describe how gravity, lateral, and dynamic loads travel through structural components using load path mapping.
• Identify primary and secondary load paths and explain why redundancy helps prevent collapse.
• Explain how openings, re-entrant corners, and irregular geometry affect load redistribution and stiffness.+ 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

• Identify major structural failure modes (buckling, fatigue cracking, beam fracture, and connection/foundation failure) and describe what triggers them.
• Explain limit states design and how safety factors and redundancy reduce the risk of collapse.
• Relate failure mechanisms to geometry, materials, and loading conditions using bridge and structural examples.

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

• 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 how connections and joints help maintain continuous load paths in structures.
• Compare bolted, welded, and bearing connections in terms of load transfer and redundancy.
• Describe shear, bearing, and slip at connections and how detailing can affect structural capacity.+ Show more

Learning Objectives

• Explain how environmental exposure affects the durability of steel, timber, concrete, and polymers over time
• Describe protective measures that slow down corrosion, rot, freeze–thaw damage, and UV degradation
• Connect maintenance and inspection intervals to expected service lifespan in bridge decks and exterior roofing

Learning Objectives

• Explain the relationship between temperature and average kinetic energy of particles.
• Distinguish internal energy from temperature in everyday situations.
• Describe how thermal energy transfers and why it flows from higher to lower internal energy.+ Show more

Learning Objectives

• Explain how species richness, species evenness, and diversity indices summarize biodiversity in a community.
• Interpret differences in diversity values across contrasting habitats and relate them to ecological stability and resilience.
• Describe conceptual links among habitat heterogeneity, niche diversity, and species turnover.+ Show more

Learning Objectives

• Describe how stratification, light penetration, and oxygen gradients form in ponds and lakes
• Explain how abiotic gradients affect community composition and vertical zonation
• Compare the effects of summer stratification and seasonal turnover on dissolved oxygen and nutrient distribution+ Show more

Learning Objectives

• Explain ecological consequences of invasive species, including competitive displacement, altered trophic relationships, and habitat structure changes.
• Describe pathways of introduction and factors that help non-native species establish successfully.
• Analyze long-term impacts such as reduced native diversity, altered nutrient dynamics, and increased management costs.+ Show more

Learning Objectives

• Explain how exponential and logistic growth models differ and identify which one matches given scenarios or graphs.
• Describe limiting factors (food availability, predation, disease, and abiotic stress) and how they affect population size.
• Distinguish density-dependent from density-independent influences and predict effects on population curves.+ 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 structural, physiological, and behavioral adaptations help organisms survive in specific habitats.
• Describe how selective pressures such as temperature, moisture, predation, and resource availability can shape adaptations.
• Identify adaptive trade-offs and how adaptations influence where organisms can live.+ Show more

Learning Objectives

• Compare how liquid-in-glass, bimetallic, and digital thermometers measure temperature and identify their suitable uses.
• Use Celsius scale conventions (0°C and 100°C) and explain why calibration and good thermal contact improve accuracy.
• Distinguish systematic and random uncertainty and describe environmental factors that can affect temperature readings.

Learning Objectives

• Explain how albedo and emissivity affect radiative heat exchange between surfaces and the environment
• Predict how surface color and coatings influence solar gain and heat loss
• Describe how low-emissivity glazing and reflective roofs modify net radiative flux+ Show more

Learning Objectives

• Use the quantitative heat equation Q = mcΔT to calculate thermal energy changes for common materials
• Identify and apply appropriate units for heat (joules) and power (watts)
• Explain how heat-transfer rate depends on temperature gradient, surface area, and time

Learning Objectives

• Identify and describe three primary modes of thermal energy transfer: conduction, convection, and radiation
• Explain the molecular/mechanism basis for each mode and typical media (solids, fluids, and space)
• Compare relative rates of heat transfer in everyday contexts and predict how heat moves

Learning Objectives

• Explain how calibration, resolution, and uncertainty affect the accuracy of temperature measurements.
• Identify common sources of error in temperature sensors, including response time, spatial placement, and radiation/thermal-contact effects.
• Compare how thermocouples, resistance temperature detectors (RTDs), and infrared sensors perform in different environmental conditions.

Learning Objectives

• Explain how buoyancy and density variations drive convective heat transfer in fluids
• Describe how temperature gradients and fluid properties influence convection strength
• Relate convection to real-world phenomena such as sea and land breezes, thermals, and lake overturning

Learning Objectives

• Explain how microstructure and manufacturing choices can increase strength, stiffness, and durability in advanced materials.
• Compare engineered timber, fibre-reinforced polymers, high-performance concrete, and composite systems using key properties and limitations.
• Describe how prefabrication, connections, and retrofits affect the real-world performance of advanced materials.

Learning Objectives

• Compare thermal conductivity in metals, ceramics, polymers, and composites using qualitative reasoning.
• Explain how free electrons and lattice vibrations affect heat transfer in different materials.
• Describe how density, porosity, and moisture can change effective thermal conductivity.+ Show more

Learning Objectives

• Explain how walls, roofs, windows, and foundations work together to affect a building’s thermal performance.
• Identify how thermal bridging and air infiltration influence heat loss and heat gain.
• Describe how insulation placement and continuous air/thermal barriers can reduce energy use.+ Show more

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 data integrity, attribution, and intellectual property shape ethical communication in STEM
• Use conventions for technical reporting, including clear methods descriptions and accurate graphical annotation
• Describe how peer review and responsible data sharing improve reliability and public understanding of scientific findings+ Show more

Learning Objectives

• Describe how digital tools support data acquisition, including sensors, timestamps, and sampling rates.
• Explain how data organization formats (like CSV) and metadata tags improve interoperability.
• Use basic spreadsheet and data-cleaning ideas to prepare data for preliminary analysis.+ Show more

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

• Explain what chemical properties are and how they describe behaviour during chemical change
• Use observable evidence (gas, colour change, precipitate formation) to infer chemical reactions
• Relate reactivity with acids and bases, combustion potential, oxidation, corrosion, and pH changes to material suitability

Learning Objectives

• Explain how the urban heat island forms using ideas of heat storage, evaporation, and vegetation
• Describe how impervious surfaces, reduced evapotranspiration, and building geometry affect local temperature and airflow
• Evaluate mitigation strategies such as cool pavements, increased greenery, and shading

Learning Objectives

• Identify how to organize categorical and numerical data using clear tabular structures
• Apply consistent units, column headings, and timestamp conventions for time-series data
• Describe metadata, sampling frames, and replication records to preserve data provenance and context+ Show more