Grade 7 Science Worksheets

Learning Objectives

• Understand how solution concentration is quantified and its significance in chemical and physical processes.
• Learn common measures of concentration such as mass percent and grams per litre.
• Recognize real-world examples like salinity in lakes and water treatment that illustrate the impact of solution concentration.+ Show more

Learning Objectives

• Understand and describe the different states of matter: solids, liquids, and gases.
• Identify particle arrangement, spacing, and movement in each state.
• Explain how temperature and pressure affect state changes.+ Show more

Learning Objectives

• Identify and describe the main organelles in a cell.
• Understand the functions of the nucleus, mitochondria, chloroplasts, and cell membrane.
• Explain how cellular structures relate to the organism's overall function and survival.

Learning Objectives

• Understand the concept of density and how it affects material selection
• Identify tensile strength and its importance in structural performance
• Compare properties of wood, steel, and reinforced concrete+ Show more

Learning Objectives

• Explain the process of convective heat transfer in fluids due to buoyancy and density variations.
• Identify and describe formation of circulation cells in air and water during convection.
• Relate convection phenomena to environmental examples like sea breezes, thermals, and lake overturning.+ Show more

Learning Objectives

• Identify different physical and chemical properties used to classify substances.
• Distinguish between elements, compounds, and mixtures based on measurable attributes.
• Apply classification techniques such as density measurement, solubility testing, and magnetic separation.+ Show more

Learning Objectives

• Describe Earth's internal layering, including crust, mantle, outer core, and inner core.
• Explain how seismic waves and geothermal profiles provide evidence of Earth's interior structure.
• Understand the processes of mantle convection and their role in plate motion.+ Show more

Learning Objectives

• Describe how energy flows through food chains, webs, and trophic pyramids in ecosystems.
• Explain the cycling of matter, such as carbon and water, within ecosystems.
• Analyze the impact of environmental changes on community composition and ecosystem processes.+ 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

• Identify observable signs that indicate a chemical reaction has taken place.
• Describe different indicators such as gas production, precipitate formation, color change, temperature change, and irreversibility.
• Explain examples of chemical reactions including rusting, combustion, and acid–base neutralization.+ Show more

Learning Objectives

• Understand how birth, death, immigration, and emigration influence population size and distribution.
• Identify regional drivers such as resource availability, water, fire, and disease that affect populations.
• Analyze how population fluctuations impact biodiversity and species status.+ Show more

Learning Objectives

• Describe the three main states of matter: solids, liquids, and gases, based on particle arrangement, spacing, and movement.
• Explain how temperature and pressure influence the transitions between different states of matter.
• Identify observable characteristics of solids, liquids, and gases to classify substances by physical properties.+ Show more

Learning Objectives

• Understand and define physical properties such as density, melting point, boiling point, color, hardness, solubility, and electrical conductivity.
• Identify and describe how physical properties are used to categorize and separate different substances.
• Recognize the importance of observing measurable attributes for substance identification and material selection.

Learning Objectives

• Explain the principle of conservation of mass in chemical reactions.
• Describe what happens at the particle level during a chemical reaction.
• Understand that matter is neither created nor destroyed in a closed system.+ Show more

Learning Objectives

• Identify observable signs that indicate a chemical change has occurred
• Differentiate between physical and chemical changes based on evidence
• Explain why multiple change indicators together provide stronger evidence for chemical reactions+ Show more

Learning Objectives

• Define physical change and identify examples of physical changes.
• Differentiate between physical and chemical changes based on observable attributes.
• Explain why physical changes are often reversible.+ Show more

Learning Objectives

• Explain how the particle model represents matter as composed of atoms and molecules.
• Describe how chemical changes involve breaking and forming bonds between particles while conserving mass.
• Visualize chemical reactions in terms of particles moving, colliding, and recombining.+ Show more

Learning Objectives

• Understand how physical and chemical properties influence material suitability in various applications.
• Identify key properties such as corrosion resistance, hardness, melting point, solubility, and reactivity.
• Match material properties to specific application requirements to prevent unwanted chemical changes.+ Show more

Learning Objectives

• Understand the difference between mixtures and pure substances.
• Identify different types of mixtures, including heterogeneous and homogeneous.
• Explain physical properties that facilitate separation methods such as filtration, evaporation, and distillation.+ Show more

Learning Objectives

• Understand the different types of chemical reactions: synthesis, decomposition, single displacement, double displacement, acid–base neutralization, and combustion.
• Identify reaction types from chemical equations and descriptions.
• Describe the particle-level processes involved in various reaction types.+ Show more

Learning Objectives

• Understand the different types of phase changes and the energy involved in each process.
• Identify the conditions under which phase changes occur and how they affect particle arrangement and energy.

Learning Objectives

• Understand the difference between closed and open systems in terms of matter transfer.
• Explain how mass conservation applies to closed systems during reactions.
• Identify system boundaries and recognize when matter enters or leaves a system.+ Show more

Learning Objectives

• Define population dynamics and growth models
• Identify factors that limit population growth
• Differentiate between density-dependent and density-independent factors+ Show more

Learning Objectives

• Distinguish elements, compounds, and mixtures based on composition and how particles are combined
• Classify mixtures as homogeneous or heterogeneous using visible and uniform properties
• Explain how matter classification helps predict what will happen during physical and chemical changes

Learning Objectives

• Understand how biological and physical disturbances can impact populations and ecosystems.
• Analyze empirical data and observations to identify causes and effects of disturbances.
• Explain mechanisms of resilience, resistance, and succession in ecosystem recovery.+ Show more

Learning Objectives

• Define heat and energy transfer.
• Identify units used in heat calculations.
• Calculate heat transfer using specific heat, mass, and temperature change.+ Show more

Learning Objectives

• Explain how advanced construction materials such as engineered timber, fibre-reinforced polymers, high-performance concrete, and composite systems can increase strength, stiffness, and durability
• Describe how manufacturing processes and microstructure features affect material performance
• Evaluate trade-offs among cost, fabrication complexity, and performance when selecting materials for buildings and bridge retrofits+ Show more

Learning Objectives

• Explain how tensile, compression, and bending tests help determine material properties used in design.
• Describe non-destructive testing methods (ultrasonic testing and hardness measurements) and what information they provide.
• Interpret how safety factors and design codes account for material variability and anisotropy.

Learning Objectives

• Explain how iterative refinement and quantitative comparison improve structural designs while balancing weight, cost, and performance.
• Distinguish topology optimization from form optimization and describe how performance-based criteria guide design choices.
• Describe how life-cycle assessment, constructability constraints, and building codes with safety margins affect feasible optimization results.

Learning Objectives

• Compare scaled physical models, digital finite-element models, and laboratory load rigs for testing strength, stiffness, and failure modes.
• Explain how strain gauges and displacement transducers are used to measure structural response during prototyping.
• Describe limitations of scaling, including effects of material heterogeneity and joint behavior.

Learning Objectives

• Understand different separation techniques based on physical properties
• Identify applications of filtration in everyday life and industry
• Analyze how separation efficiency relates to material properties

Learning Objectives

• Explain the different long-range forces: gravity, electric, and magnetic interactions.
• Describe how gravity acts as an attractive force based on mass and distance.
• Identify examples of electromagnetic forces in planetary motion, falling objects, and magnets.+ Show more

Learning Objectives

• Explain the idea of reference conditions and why they guide ecological restoration goals.
• Differentiate active and passive restoration approaches and describe how each can support recovery.
• Identify key factors in restoration planning, including species selection, genetic considerations, and habitat connectivity.+ Show more

Learning Objectives

• Identify the main components of a building envelope including walls, roofs, windows, and foundations.
• Understand how different components contribute to thermal performance and energy efficiency.
• Describe the significance of interfaces, thermal bridging, and air infiltration in building insulation.+ Show more

Learning Objectives

• Understand the concept of equilibrium and static balance in structures.
• Identify different types of forces acting on objects and their graphical representations.
• Explain how balanced force pairs contribute to safety and durability in infrastructure.+ Show more

Learning Objectives

• Identify how energy transfers between potential and kinetic in a swinging pendulum.
• Explain the concept of energy conservation within a mechanical system.
• Recognize observable signs of energy loss in real-world systems like pendulums.+ Show more

Learning Objectives

• Understand how comparative anatomy provides evidence for evolution.
• Identify homologous and analogous structures in different species.
• Examine morphological features like limb bones, skulls, and vestigial organs.+ Show more

Learning Objectives

• Explain how the particle model describes matter as atoms and molecules in constant motion
• Use the particle model to describe what happens during chemical changes (bond breaking and forming)
• Predict why total mass is conserved in a closed system during chemical reactions

Learning Objectives

• Describe the main mechanisms of heat transfer: conduction, convection, and radiation.
• Identify examples of heat transfer in everyday life and laboratory settings.
• Explain how energy transfer causes temperature changes and rate differences among materials.+ Show more

Learning Objectives

• Explain how balanced forces affect net force and an object’s motion
• Predict how unbalanced forces change motion through acceleration
• Use real-world scenarios (like tug-of-war) to describe the direction of net force

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

• Understand the interactions between living organisms and non-living environmental factors in ecosystems.
• Identify how sunlight, soil, water, temperature, and topography influence plant, animal, and microbial communities.
• Explain cause-and-effect relationships that shape ecosystem patterns across Alberta landscapes.+ Show more

Learning Objectives

• Understand the processes involved in the rock cycle, including melting, crystallization, weathering, and metamorphism.
• Identify canonical examples of geological transformations among igneous, sedimentary, and metamorphic rocks.
• Explain the material pathways and timescales in Earth's rock transformations.+ Show more

Learning Objectives

• Develop critical thinking skills to evaluate explanations, models, and evidence.
• Identify logical fallacies and distinguish correlation from causation.
• Assess strengths and limitations of data and models.+ Show more

Learning Objectives

• Understand the various analytical indicators used to assess the purity of a substance.
• Identify methods like melting point, boiling point shifts, conductivity, refractive index, and gravimetric residue.
• Compare and interpret results from different purity assessment techniques.+ Show more

Learning Objectives

• Understand the concept of trophic efficiency and its role in energy transfer within ecosystems.
• Describe how energy diminishes at higher trophic levels and interpret energy pyramids.
• Explain why fewer top predators exist and how energy availability affects ecological communities.+ Show more

Learning Objectives

• Explain how temperature gradients influence different environments.
• Identify the role of light, soil, moisture, and pH in shaping ecosystems.
• Describe microhabitats within ponds, forests, and meadows based on abiotic factors.+ Show more

Learning Objectives

• Understand the key quantities used to describe motion: distance, time, and speed.
• Calculate average speed using distance and time.
• Identify units of measurement for motion quantities.+ Show more