Grade 7 Science Worksheets

Learning Objectives

• Explain how Earth’s tilt and orbit change the Sun’s apparent height and daylight length during the year.
• Describe why seasons differ between the Northern and Southern hemispheres.
• Use evidence from solar energy and day length patterns to support claims about seasonal change.

Learning Objectives

• Explain how food molecules are broken down and rearranged in the body for growth, repair, and maintenance.
• Describe how chemical energy in food becomes usable energy for life processes.
• Use evidence from food and digestion to connect eating habits with changes in body condition over time.

Learning Objectives

• Explain how limited resources (food, water, space, and shelter) affect population survival and reproduction.
• Describe relationships between environmental conditions and changes in ecosystem population sizes.
• Use evidence from a text or scenario to identify main ideas and apply resource-availability concepts.

Learning Objectives

• Explain how technologies can provide benefits and create costs or risks to people and the environment
• Identify ethical issues in technology, including fairness in access, privacy, and responsibility for hazards across a product life cycle
• Use evidence to connect engineering choices to real-world consequences for communities and ecosystems

Learning Objectives

• Explain how matter and energy move through ecosystems using producers, consumers, and decomposers
• Describe how energy transfers through food chains and food webs and why less energy reaches higher trophic levels
• Connect the roles of metabolism and heat loss to patterns of energy flow in ecosystems+ Show more

Learning Objectives

• Explain how conservation status is determined using population trends, threats, and recovery potential
• Interpret evidence about species vulnerability by connecting land use, genetic diversity, and habitat connectivity
• Use conservation-status concepts to describe how assessments support regional conservation priorities

Learning Objectives

• Explain how traditional ecological knowledge (TEK) supports understanding of seasonal cycles and ecological relationships.
• Identify how oral histories and place-based knowledge can help interpret habitat indicators and species interactions.
• Compare how different knowledge systems can complement one another when studying long-term environmental patterns.

Learning Objectives

• Explain how ecological models represent relationships among components in an ecosystem
• Distinguish between conceptual and quantitative modelling approaches
• Identify important model inputs and limitations, including uncertainty+ Show more

Learning Objectives

• Explain why animals migrate using food availability and breeding needs as drivers.
• Describe how timing cues and energetic demands affect migration schedules.
• Analyze how migratory connectivity links ecosystems across regions and influences population dynamics.

Learning Objectives

• Explain how wetlands regulate water by storing, buffering, and slowly releasing water.
• Describe how wetlands cycle nutrients and improve water quality through biological and chemical processes.
• Identify how different wetland types (peatlands vs. marshes) provide habitat and support biodiversity.+ Show more

Learning Objectives

• Define mutualism, commensalism, and parasitism using evidence from interactions between species.
• Explain how symbiosis types can affect population size, resource distribution, and community structure.
• Apply symbiosis concepts to Alberta-relevant examples in local ecosystems.

Learning Objectives

• Explain how kinetic and potential energy are related to motion and elevation in mechanical systems.
• Use conservation of mechanical energy to predict qualitative energy changes during motion.
• Connect energy relationships to forces, safe speed, and structural loading in real-world transportation and industrial contexts.

Learning Objectives

• Explain how push and pull forces can change an object's state of motion
• Distinguish between contact forces and non-contact forces using real-world examples
• Describe how net force relates to acceleration in qualitative terms

Learning Objectives

• Explain equilibrium as having zero net force and describe how it affects an object’s motion
• Identify common force pairs (such as gravity and normal force) and state whether they are balanced or unbalanced
• Interpret and describe free-body diagrams using arrow direction and relative length+ Show more

Learning Objectives

• Explain how static and kinetic friction oppose relative motion between touching surfaces
• Describe how aerodynamic drag opposes motion through air and increases with speed
• Use qualitative reasoning to predict how changing surface texture, normal force, and air conditions affect acceleration and stopping distance+ Show more

Learning Objectives

• Translate distance–time and speed–time data tables into graphs of motion.
• Interpret graph features such as slope (rate) and compare how different curves show different motion.
• Use graphs to estimate average rate and reason about changing speed using familiar scenarios.+ Show more

Learning Objectives

• Explain the basic parts of a lever (fulcrum, effort, load) and how torque relates to lever action
• Describe how pulley systems change effort and direction of force
• Calculate ideal mechanical advantage for simple lever and pulley setups using basic arithmetic+ Show more

Learning Objectives

• Describe how distance, time, and speed are related and used to study motion.
• Calculate average speed using the formula distance ÷ time and interpret what units mean.
• Identify common sources of measurement error and explain how they affect speed calculations.+ Show more

Learning Objectives

• Explain how material properties such as strength, stiffness, density, and environmental resilience affect structural design
• Describe how materials behave under compression, tension, and bending and how this influences long-term performance
• Compare timber, structural steel, and reinforced concrete for use in load-bearing prairie and cold-climate applications

Learning Objectives

• Identify the main parts and functions of simple machines (lever, pulley, wedge, screw, inclined plane, wheel-and-axle).
• Explain mechanical advantage as the relationship between input force and output force.
• Calculate mechanical advantage for ideal simple machines using force ratios or distance reasoning.+ Show more

Learning Objectives

• Explain how supports, foundations, and load paths work together to keep structures stable.
• Describe how compression, tension, and shear forces affect common structural members like beams and columns.
• Connect material properties (stiffness, strength, durability) to safety and suitability under typical Alberta wind and snow loads.

Learning Objectives

• Identify the roles of tension and compression in truss members using qualitative reasoning
• Explain how the method of joints uses equilibrium at joints to infer member forces
• Compare common truss forms (Pratt, Warren, Howe) in terms of where tension and compression tend to occur+ Show more

Learning Objectives

• Explain how mass conservation applies to closed or near-closed physical and chemical systems.
• Use mass budgeting ideas to reconcile measured and expected masses in real-world scenarios.
• Connect conservation of mass to reaction stoichiometry, waste accounting, and environmental mass balances.

Learning Objectives

• Explain conservation of mass in a closed system during physical and chemical changes.
• Use reactants and products to predict mass relationships in sealed-container reactions.
• Interpret experimental observations to support the idea that atoms are conserved.

Learning Objectives

• Identify observable evidence of a chemical change such as gas formation, color change, precipitate formation, temperature change, and odor change.
• Explain chemical changes at the particle level by focusing on bonds breaking and bonds forming to create new substances.
• Distinguish chemical changes from physical changes using evidence-based reasoning.

Learning Objectives

• Classify matter as a pure substance, mixture, or solution based on particle uniformity and measurable properties
• Compare pure substances, mixtures, and solutions using examples and separation/dissolving ideas
• Explain how classification helps predict observable behavior in everyday and regional contexts

Learning Objectives

• Explain how the particle model describes matter using discrete particles, spaces, and motion.
• Use particle motion and arrangement to predict and describe physical changes between states of matter.
• Connect microscopic particle behavior to observable phenomena such as diffusion, evaporation, and condensation.

Learning Objectives

• Identify signs that a physical change has occurred, such as reversible phase changes and changes in shape or size.
• Explain how particle rearrangement and energy changes can produce physical changes without forming new substances.
• Use evidence from mass measurements in closed systems to support whether a change is physical or chemical.

Learning Objectives

• Explain how particle motion and arrangement relate to phase changes and energy transfer
• Describe melting, freezing, evaporation, and condensation as energy-absorbing or energy-releasing processes
• Use particle-level phase reasoning to interpret macroscopic energy changes (including latent heat)+ Show more

Learning Objectives

• Explain how pure substances have uniform composition and characteristic physical and chemical properties.
• Differentiate elements and compounds based on composition and how they can be identified.
• Use physical and chemical test ideas to interpret how mixtures may show deviations from pure-substance benchmarks.+ Show more

Learning Objectives

• Identify qualitative indicators of chemical reactions (gas production, heat change, colour change, precipitate formation).
• Describe observation patterns accurately using scientific vocabulary and cause-and-effect reasoning.
• Connect observable evidence to possible particle interactions and mass changes in a chemical process.

Learning Objectives

• Explain saturation and unsaturated states in terms of dissolved solute at a given temperature and pressure.
• Describe what happens when more solute is added to a saturated solution and why crystals may form.
• Interpret supersaturation as a temporary condition that can lead to sudden precipitation.+ Show more

Learning Objectives

• Explain how physical properties (size, solubility, magnetism, boiling point) are used to separate mixtures without changing substances.
• Identify suitable separation methods for common mixtures and justify choices using observable evidence.
• Describe how separation efficiency can be evaluated by comparing starting materials to recovered products.

Learning Objectives

• Explain specific heat capacity as the energy needed to raise the temperature of 1 gram of a substance by 1°C
• Use Q = m c ΔT to calculate thermal energy changes using correct units
• Interpret temperature change (ΔT) and relate sign of ΔT to heating or cooling

Learning Objectives

• Define solution concentration as the amount of solute relative to solvent and explain why concentration matters.
• Use and interpret concentration measures such as mass percent and grams per litre.
• Predict how changing concentration can affect physical properties like freezing point and boiling point.

Learning Objectives

• Explain how conduction transfers kinetic energy through solids and across interfaces
• Compare thermal conductivity of common materials and relate it to temperature gradients
• Use ideas of conductivity coefficients and contact resistance to predict heat-flow behavior+ Show more

Learning Objectives

• Explain how density differences caused by temperature variations drive convection in fluids
• Differentiate natural convection from forced convection and identify where each occurs in real systems
• Describe how boundary layers and buoyancy affect flow patterns and heat transfer+ Show more

Learning Objectives

• Explain how building orientation and south-facing glazing can support passive solar heating in Alberta’s climates.
• Describe how thermal barriers and reduced thermal bridging improve a building envelope’s thermal performance.
• Compare how heat-recovery ventilation can conserve energy while maintaining indoor air quality.+ Show more

Learning Objectives

• Explain how energy transforms between forms while total energy is conserved.
• Identify examples of mechanical, chemical, electrical, and thermal energy in real systems.
• Describe energy pathways using a cause-and-effect reasoning approach.+ Show more

Learning Objectives

• Explain how thermal resistance (R-value) affects heat flow between indoor and outdoor environments.
• Identify how material thickness and construction details influence insulation effectiveness and comfort.
• Analyze how thermal bridges and design choices impact energy efficiency and lifecycle energy use.

Learning Objectives

• Explain how conduction, convection, radiation, and storage/thermal mass affect energy budgets in a system.
• Use conservation principles to connect net heat gain to energy performance in passive solar and district energy contexts.
• Interpret and compare metrics such as required fuel energy and predicted temperature response using integrated reasoning.+ Show more

Learning Objectives

• Explain how thermal conductivity, specific heat capacity, density, and phase change affect heat transfer in materials.
• Compare common Alberta construction materials using their thermal and moisture-related properties.
• Describe how porosity and moisture content change effective thermal conductivity in building assemblies.

Learning Objectives

• Use quantitative relationships to calculate heat energy changes using specific heat, mass, and temperature change.
• Convert between joules (J) and kilojoules (kJ) and check that units make sense in thermal calculations.
• Interpret simple energy budgets and temperature-change information to compare heat flow scenarios.

Learning Objectives

• Explain how radiant transfer moves energy using electromagnetic waves without direct contact.
• Describe how solar intensity, absorptivity, and emissivity affect net radiative heating or cooling.
• Compare how different surfaces (e.g., roofs, vegetation, and snow) influence daytime warming and nocturnal cooling.

Learning Objectives

• Explain how solar input, albedo, and phase changes drive seasonal energy budgets.
• Describe how stored energy is released through radiative, sensible, and latent heat pathways.
• Relate seasonal thermal cycling to soil freeze–thaw, snowpack insulation, and lake stratification.

Learning Objectives

• Define carrying capacity and explain why it limits population growth in ecosystems
• Identify limiting factors and describe how they affect population size over time
• Use evidence from scenarios to predict population changes when a habitat is below or above carrying capacity

Learning Objectives

• Explain how system models represent energy inputs, useful outputs, and waste heat
• Use energy flow diagrams to trace energy transformations and account for conservation of energy
• Identify dominant loss mechanisms by comparing useful output to total input+ Show more

Learning Objectives

• Distinguish between temperature and heat using the particle kinetic-energy model.
• Describe thermal transfer using conduction, convection, and radiation.
• Apply thermal-transfer ideas to explain real-world examples in Alberta’s climates.