Grade 7 Science Worksheets

Learning Objectives

• Explain how adaptation traits (structural, physiological, and behavioural) help organisms survive and reproduce in specific environments.
• Describe how selective pressures shape trait variation and how trade-offs can affect survival.
• Connect examples from Alberta habitats to niches and long-term persistence of species.

Learning Objectives

• Identify signs of physical changes using particle behavior and observable properties
• Explain why physical changes do not create new substances
• Use the idea of conservation of mass in a closed system to evaluate evidence

Learning Objectives

• Explain how particle kinetic and potential energy change during melting, freezing, evaporation, and condensation.
• Describe how energy is absorbed or released during phase changes without changing chemical identity.
• Connect microscopic particle motion to macroscopic energy budgets and real-world examples such as snowmelt and wetland evaporation.

Learning Objectives

• Describe how pure substances have uniform composition and characteristic properties such as fixed melting and boiling points.
• Distinguish elements from compounds using evidence from physical and chemical tests.
• Use property benchmarks to identify whether a sample may contain impurities or multiple constituents.

Learning Objectives

• Identify common observable indicators of chemical reactions, such as gas production, heat change, colour shifts, and precipitate formation.
• Describe reaction observations using clear scientific language and connect observations to possible reaction pathways and mass changes.
• Interpret qualitative evidence from real-world contexts (e.g., combustion emissions and spoilage-related gas release) to support explanations of chemical processes.

Learning Objectives

• Explain how the particle model describes matter as particles that have spaces and are in constant motion
• Use particle ideas to account for macroscopic properties and states of matter
• Describe how diffusion and density changes can be explained by particle arrangement and motion+ Show more

Learning Objectives

• Explain how conduction transfers thermal energy through particle collisions and electron movement in solids
• Compare thermal conductivity of common building materials and predict heat-flow direction
• Use contact resistance and material interfaces to describe temperature gradients in real structures

Learning Objectives

• Define solution concentration and describe how solute and solvent relate to it
• Identify and use common concentration measures such as mass percent and grams per litre
• Explain how concentration affects physical properties like boiling point elevation and freezing point depression+ Show more

Learning Objectives

• Explain energy transformations using the idea that total energy is conserved.
• Identify common forms of energy (mechanical, chemical, electrical, and thermal) and describe how they change during real processes.
• Use simple energy bookkeeping to predict what energy form increases or decreases in a system.

Learning Objectives

• Explain how thermal conductivity, specific heat capacity, density, and phase change influence heat transfer in materials.
• Compare common building insulation materials and construction components using their material properties and practical trade-offs.
• Use property vocabulary (porosity, moisture content, thermal bridging, conductivity) to justify material selection for seasonal performance.

Learning Objectives

• Use the quantitative heat relationship to calculate energy changes using mass, specific heat, and temperature change
• Convert between joules (J) and kilojoules (kJ) to support correct thermal calculations
• Interpret and compare thermal processes using temperature change and energy budgets

Learning Objectives

• Explain how temperature relates to the average random kinetic energy of particles.
• Describe how thermal energy depends on both particle motion and the number of particles.
• Use the idea of a molecular speed distribution to interpret temperature differences and heat transfer.

Learning Objectives

• Explain how traditional ecological knowledge (TEK) is based on long-term observations and community learning.
• Describe how oral histories and place-based knowledge can support understanding of species interactions and seasonal cycles.
• Identify examples of stewardship that help maintain healthy ecosystems in Alberta and beyond.+ Show more

Learning Objectives

• Describe how ecological models represent relationships among ecosystem components using simplified variables and assumptions
• Distinguish between conceptual and quantitative ecological models and explain how each is used to predict outcomes
• Identify common model inputs and limitations, and explain why model predictions should be checked against real observations

Learning Objectives

• Explain how particle motion relates to temperature and thermal energy.
• Distinguish heat from temperature and describe heat transfer by conduction, convection, and radiation.
• Apply thermal transfer concepts to real-world Alberta climate examples.

Learning Objectives

• Explain how strength, stiffness, and density affect the suitability of materials for load-bearing structures.
• Describe how material behavior under compression, tension, and bending influences long-term performance.
• Connect material choice to environmental resilience, including freeze–thaw, snow loads, and maintenance needs.

Learning Objectives

• Explain how solar energy input and surface conditions (like snow cover) affect seasonal temperature change.
• Describe how energy is stored and released through radiative, sensible, and latent heat processes.
• Connect seasonal thermal cycles to real-world effects such as soil freeze–thaw, snowpack insulation, and lake stratification.

Learning Objectives

• Explain what saturation means in terms of dissolved solute and solubility limits at a given temperature and pressure.
• Describe how supersaturation can form and why precipitation may occur suddenly.
• Identify real-world examples of saturation and crystallization, including evaporation and road salt effects.+ Show more

Learning Objectives

• Explain how calorimetry uses temperature change to determine energy transferred in joules.
• Apply the relationship Q = mcΔT and energy conservation to interpret heat gained and heat lost.
• Identify common assumptions in calorimetry (such as negligible heat loss to the surroundings).

Learning Objectives

• Explain how temperature changes create density differences that drive convection in fluids
• Differentiate natural convection from forced convection using real-world examples
• Identify key features of convection systems such as buoyancy and boundary layers+ Show more

Learning Objectives

• Explain how insulation reduces heat transfer between a warm and a cool environment
• Describe how material properties and construction details affect thermal resistance and comfort
• Use R-values and ideas about thermal bridges to make energy-efficiency decisions+ Show more

Learning Objectives

• Explain how torque and the fulcrum affect the mechanical advantage of a lever
• Calculate ideal mechanical advantage for common lever and pulley systems using simple arithmetic
• Relate geometry (lever arm length, pulley rope segments) to the direction and size of input and output forces+ Show more

Learning Objectives

• Explain how gravitational potential energy changes into kinetic energy during motion in a mechanical system
• Use mass, height (elevation), and speed to reason about relative mechanical energy and forces
• Describe how energy conservation applies when friction is small and how real systems differ+ Show more

Learning Objectives

• Explain how conduction, convection, and radiation contribute to heat transfer in energy systems.
• Use energy budget ideas and conservation concepts to interpret net heat gain and energy losses.
• Connect component-level heat transfer information to system-level predictions (e.g., temperature response).

Learning Objectives

• Explain how radiant transfer moves energy using electromagnetic waves without needing direct contact.
• Describe how absorptivity, emissivity, and solar intensity affect heating and cooling of surfaces.
• Interpret how different surface types (roofs, vegetation, snow) can create microclimate differences.

Learning Objectives

• Explain how building orientation affects seasonal thermal performance in Alberta’s climate zones.
• Describe how envelope assembly choices influence thermal bridging and heat loss.
• Use evidence from design strategies (e.g., south-facing glazing and heat-recovery ventilation) to predict impacts on energy demand and comfort.

Learning Objectives

• Define specific heat capacity and explain what its units mean in terms of energy and temperature change.
• Use the heat equation to describe how mass, specific heat, and temperature change affect the energy transferred.
• Convert between joules and kilojoules and between grams and kilograms when solving heat-related problems.

Learning Objectives

• Differentiate between pure substances, mixtures, and solutions using measurable properties and uniformity.
• Explain why pure substances have characteristic melting points while mixtures do not.
• Describe solutions as homogeneous mixtures in which solute particles are dispersed at the molecular scale.+ Show more

Learning Objectives

• Explain how separation methods use differences in physical properties to separate mixtures
• Identify which separation method best matches a mixture based on properties such as size, solubility, magnetism, and boiling point
• Connect observable outcomes (what remains or what collects) to the underlying classification of the mixture components

Learning Objectives

• Explain how chromatography separates mixtures using differences in how molecules interact with stationary and mobile phases.
• Describe capillary action and adsorption in paper and thin-layer chromatography (TLC).
• Interpret retention factor (Rf) values to compare substances and make claims about relative purity.

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 density differences drive the movement of particles during separation
• Compare decanting, floatation, and centrifugation based on buoyant force, sedimentation rate, and centrifugal acceleration
• Predict which particles will separate together by considering density contrast and suitable media/conditions

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

• Explain how filtration separates particles based on size and material properties of porous media
• Describe how pore size selection and flow behavior affect filtration results for sand-water suspensions and precipitates
• Compare filtration with follow-up separation methods such as evaporation and centrifugation+ 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

• Distinguish elements from compounds using atomic composition and bonding
• Explain how chemical formulas represent fixed ratios of atoms in compounds
• Predict how macroscopic properties (like conductivity and melting point) can change when elements form compounds

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

• 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 how multiple analytical indicators can be used to assess the purity of a substance.
• Compare how melting point, boiling point, electrical conductivity, and refractive index respond to impurities.
• Use evidence such as mass loss on heating and gravimetric residue to judge whether contamination is present.

Learning Objectives

• Explain how temperature and solvent polarity affect dissolution and solubility
• Use solubility curve ideas to predict whether a solution is unsaturated, saturated, or supersaturated
• Describe how pressure affects the solubility of gases and apply this to real-world situations+ Show more

Learning Objectives

• Define physical properties and explain how they are measured without changing a substance into a new one
• Use measurements such as mass, volume, density, and phase-change temperatures to identify and compare materials
• Relate physical descriptors like electrical conductivity and optical clarity to how substances behave in real applications

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

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

• Classify mixtures as solutions, colloids, or suspensions based on particle size and observable behavior
• Distinguish homogeneous from heterogeneous mixtures using uniformity and visible phases
• Use evidence such as light scattering and stability to predict how mixtures behave during separation

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 units, scale readings, and significant figures affect measurement accuracy and precision.
• Differentiate systematic error from random error and identify common sources of each.
• Estimate measurement uncertainty and report results using appropriate conventions.+ Show more

Learning Objectives

• Select an appropriate graph type for categorical and continuous data and explain why it fits the data.
• Construct and interpret graphs using correct axis scaling, proportional representation, and clear labeling.
• Analyze patterns in graphs by reading slope, correlation, and trends while avoiding claims of causation.

Learning Objectives

• Explain how models use abstraction, assumptions, and parameters to represent real-world phenomena.
• Identify how units consistency and scaling affect model results.
• Describe validation using empirical observations and sensitivity testing to understand model limits.+ Show more