Grade 7 Science Worksheets

Learning Objectives

• Explain how uneven heating drives atmospheric energy transfer and convection
• Describe how pressure gradients and prevailing winds relate to weather variability
• Model large-scale circulation (Hadley cell) and connect it to climate patterns+ Show more

Learning Objectives

• Explain how the solar system formed from smaller materials and how that relates to planet properties.
• Compare terrestrial and gas/ice giant planets using evidence such as composition, atmospheres, and geology.
• Describe how orbital relationships and planetary tilt/eccentricity affect motion, seasons, and observed phases/eclipses.

Learning Objectives

• Explain how freshwater availability depends on river basins, watersheds, and hydrologic processes such as recharge
• Describe how groundwater movement is controlled by porosity and permeability and how aquifers store water
• Differentiate renewable and nonrenewable resources using geologic settings and evidence from rock and mineral deposits+ Show more

Learning Objectives

• Differentiate ionic and covalent bonding using evidence from bonding structure and particle interactions.
• Relate bonding type to observable properties such as melting point, solubility, and electrical conductivity.
• Use empirical formulas to describe simple binary ionic salts and molecular compounds.

Learning Objectives

• Describe the major layers of Earth (crust, mantle, outer core, inner core) and key properties of each.
• Explain how heat transport, density differences, and convection relate to Earth’s dynamic processes.
• Interpret seismic wave behavior as evidence for Earth’s internal structure.+ Show more

Learning Objectives

• Explain how the technological design process works as an iterative cycle from problem definition to optimization.
• Use criteria and constraints to make design trade-offs and justify design decisions with measurements or evidence.
• Describe how prototyping, evaluation, and refinement improve a prototype’s performance over time.

Learning Objectives

• Explain how the rock cycle creates different rock types and how each can be preserved in the rock record.
• Use sedimentary stratigraphy and fossil evidence to interpret relative changes in Earth’s surface and environments.
• Compare relative and absolute dating methods, including index fossils and radiometric decay.

Learning Objectives

• Explain qualitatively how gas pressure, volume, and temperature affect one another
• Describe how diffusion and compressibility help explain everyday gas observations
• Use real-world examples (compressed air, heated air) to predict what changes and why

Learning Objectives

• Explain how space technology (telescopes, satellites, spacecraft, and instruments) increases what humans can observe beyond Earth
• Describe the roles of robotic missions and space stations in collecting and interpreting scientific data
• Use examples of historical missions to connect specific technologies to expanded observational reach and better inference

Learning Objectives

• Explain how weathering, erosion, deposition, and mass wasting reshape Earth’s surface.
• Identify the driving forces (water flow, wind, glaciers, and gravity) behind common landforms.
• Use observational evidence and basic mapping ideas to interpret how landforms change over time.

Learning Objectives

• Explain how protons, neutrons, and electrons determine atomic identity and isotopic variation
• Relate atomic number and mass number to element identity and an isotope’s nucleus
• Describe basic electron arrangements and connect simple atomic models to observable patterns

Learning Objectives

• State the law of conservation of mass for a closed system.
• Use mass accounting to relate the masses of reactants and products in sealed transformations.
• Apply conservation of mass to physical processes like dissolution and to chemical reactions using observations and simple balancing ideas.

Learning Objectives

• Explain how conduction, convection, and radiation transfer thermal energy and give real-world examples.
• Relate temperature differences to the direction of heat flow and to measurable effects like warming rates.
• Describe how specific heat and phase changes affect thermal energy transfer without always changing temperature.

Learning Objectives

• Distinguish homogeneous and heterogeneous mixtures based on observable properties.
• Select an appropriate separation technique (filtration, distillation, chromatography, magnetic separation) by using differences in solubility, particle size, or boiling point.
• Explain how physical separation methods produce distinct fractions without changing chemical identities.

Learning Objectives

• Explain how the kinetic particle model uses particle spacing, motion, and forces to describe macroscopic properties of matter.
• Use the particle model to predict how changes such as heating or applied pressure affect observable measurements.
• Connect diffusion, thermal expansion, and compressibility to micro-scale particle behavior.

Learning Objectives

• Define physical and chemical properties and explain how they help classify substances.
• Identify elements, compounds, and mixtures using measurable properties such as density, solubility, hardness, conductivity, magnetism, and flammability.
• Use observable evidence from property tests to justify classifications.

Learning Objectives

• Identify observable evidence that a chemical reaction has occurred, including gas evolution, precipitate formation, color change, and temperature change
• Explain how qualitative observations connect to reactant-to-product changes described by symbolic formulas
• Use particle- and energy-based reasoning to interpret reaction evidence during common classroom reactions

Learning Objectives

• Explain states of matter using a particle model and describe phase changes between states.
• Relate temperature and pressure to when phase changes occur and to measurable properties such as density and viscosity.
• Use water as an example to connect molecular energy to observable behavior, including how boiling point changes with atmospheric pressure.

Learning Objectives

• Explain how engineering designs meet intended functions using constraints such as materials, time, and safety.
• Analyze how structural, mechanical, and electrical systems distribute loads, transfer energy, or control current.
• Evaluate trade-offs among cost, reliability, and performance using grade-appropriate quantitative reasoning.

Learning Objectives

• Explain how inventions become innovations through diffusion and incremental improvements over time.
• Identify factors that enable invention, such as a specific need, available materials, and design choices informed by observation.
• Distinguish innovation from invention by describing cumulative modification across technological lineages.

Learning Objectives

• Explain how square-cube relationships change forces, areas, and volumes when a prototype is scaled up or down.
• Predict how surface-to-volume ratio affects heat transfer and cooling in small versus large objects.
• Describe how Reynolds number can change fluid-flow behavior when conditions or size scale change.

Learning Objectives

• Explain how building codes and electrical safety codes reduce risk in technological designs.
• Identify examples of compliance tools such as grounding requirements, code-specified load ratings, and personal protective measures.
• Describe why safety factors and inspection-related documentation support reliable performance.

Learning Objectives

• Explain how diagrams, scale models, and quantitative representations can be used to predict system behavior
• Identify assumptions, simplifications, and scaling effects that affect model accuracy
• Interpret model outputs and describe limitations of models for understanding complex interactions

Learning Objectives

• Identify key conventions in technical communication, including labels, units, and unambiguous dimensioning
• Use standardized notation to interpret and create clear diagrams and schematic information
• Explain how specification documents support replication, evaluation, and cross-discipline collaboration

Learning Objectives

• Analyze how technology can create short- and long-term social, economic, and environmental impacts
• Evaluate trade-offs using cost-benefit reasoning and identify unintended consequences
• Explain how policies and ethical considerations can help reduce harmful impacts

Learning Objectives

• Explain kinetic energy and potential energy using everyday examples.
• Describe how height and motion affect whether energy is stored or moving.
• Use qualitative reasoning to compare energy in different situations.

Learning Objectives

• Explain how friction affects the motion of objects on different surfaces using qualitative evidence.
• Describe gravity as a force that produces acceleration and changes apparent weight on slopes.
• Differentiate between contact forces (like friction and normal force) and long-range forces (like gravity).

Learning Objectives

• Explain how mechanical energy can transfer between kinetic and potential forms during motion (e.g., pendulums and springs).
• Describe mechanical energy conservation in ideal systems and account for observable energy losses in real systems.
• Use energy bookkeeping ideas to distinguish closed vs. open systems and nonmechanical energy transfers (like heat and sound).

Learning Objectives

• Interpret distance–time and velocity–time graphs to describe motion patterns such as uniform motion, speeding up, slowing down, and rest intervals.
• Use the slope of a velocity–time or distance–time graph to explain how speed changes over time.
• Connect the shape of a velocity–time graph to displacement in a conceptual way by comparing areas under curves.

Learning Objectives

• Distinguish speed and velocity, and explain how acceleration describes changing motion.
• Identify which motion quantities are scalar versus vector and interpret motion scenarios qualitatively.
• Relate displacement, time, and rate of change using simple, grade-appropriate examples.

Learning Objectives

• Explain how net force depends on both magnitude and direction of forces in one dimension
• Use sign conventions to add forces along a line and determine the direction of motion
• Interpret equilibrium as zero net force and predict what happens to an object

Learning Objectives

• Explain how inertia affects motion when forces change.
• Describe the relationship between net force, mass, and acceleration using qualitative reasoning.
• Use action–reaction pairs to predict motion in everyday interactions.

Learning Objectives

• Calculate average speed using distance and time, with correct units
• Convert between meters per second (m/s) and kilometers per hour (km/h)
• Distinguish average speed from instantaneous speed using numerical examples

Learning Objectives

• Explain how adaptations (structural, physiological, and behavioural) help organisms survive in specific environments.
• Identify examples of adaptation traits related to temperature, water availability, and seasonal change.
• Describe trade-offs in resource allocation and how they affect which traits are favored by natural selection.+ Show more

Learning Objectives

• Distinguish biotic factors from abiotic factors in an ecosystem.
• Explain cause-and-effect relationships between abiotic conditions and resource access, shelter, and survival for organisms.
• Describe how gradients in abiotic factors can shape patterns in plant, animal, and microbe communities.

Learning Objectives

• Describe how biodiversity includes genetic, species, and ecosystem diversity.
• Explain how richness, evenness, and habitat heterogeneity are used to measure regional biodiversity.
• Interpret what biodiversity metrics can suggest about ecosystem resilience and function.

Learning Objectives

• Explain how traditional ecological knowledge uses long-term observation to understand ecological relationships and seasonal cycles.
• Describe how oral histories and place-based information can serve as habitat indicators for species and ecosystems.
• Compare Indigenous knowledge with other knowledge systems and explain why both can support environmental understanding.

Learning Objectives

• Explain how conservation status is assessed using population trends, threat severity, and recovery potential
• Describe how land use, genetic diversity, and habitat connectivity affect a species’ vulnerability
• Interpret conservation evidence to understand regional species persistence

Learning Objectives

• Explain how ecological inquiry uses questions, evidence, and clear conclusions to evaluate relationships in the environment.
• Identify measurable variables and describe how observations and data help test or revise a hypothesis.
• Interpret ecological data while accounting for natural variability and human impacts.

Learning Objectives

• Explain how energy flows through interconnected feeding relationships in a food web
• Identify producers, consumers, and decomposers and describe their roles in trophic connections
• Predict how adding or removing a species can change dependencies and stability in an ecosystem

Learning Objectives

• Explain what solution concentration means and identify the roles of solute and solvent.
• Use mass percent and grams per litre to describe how concentrated a solution is.
• Predict how concentration can affect boiling point and freezing point.

Learning Objectives

• Explain the ecological levels of organization from individual organisms to ecosystems
• Identify examples of individual, population, community, and ecosystem using Alberta-style scenarios
• Describe why patterns at higher levels cannot always be predicted from single organisms

Learning Objectives

• Explain how seasonal and annual migrations connect distant habitats
• Identify common drivers of migration such as food availability and breeding needs
• Describe how timing cues and energy demands affect survival during migration+ Show more

Learning Objectives

• Explain how ecological models use assumptions to simplify complex ecosystem relationships.
• Identify common model inputs and how models are tested using real-world observations.
• Compare conceptual and quantitative modelling approaches and describe their strengths and limits.

Learning Objectives

• Explain how standardized sampling protocols and consistent data recording support long-term ecological monitoring.
• Describe how temporal replication helps detect trends in species and habitat conditions over time.
• Compare monitoring methods such as fixed-site surveys, point counts, remote sensing, and water quality sampling.

Learning Objectives

• Explain how anthropogenic pollutants enter ecosystems through key exposure pathways in aquatic and terrestrial environments.
• Describe how nutrients, hydrocarbons, and airborne pollutants can affect organism health and ecosystem chemistry.
• Connect pollutant sources to observable ecological effects such as food web changes and bioaccumulation risks.

Learning Objectives

• Distinguish mutualism, commensalism, and parasitism by the effects on both species.
• Explain how symbiosis types can influence population dynamics and community structure.
• Use examples to describe ecological consequences such as resource distribution and coevolution.

Learning Objectives

• Explain how calorimetry uses temperature change to determine energy transfer.
• Apply the idea of energy conservation to heat gained or lost by substances.
• Use specific heat concepts to compare heating, cooling, melting, and thermal losses.