Grade 7 Science Worksheets

Learning Objectives

• Define specific heat capacity and explain how it relates to thermal energy and temperature change
• Use the equation Q = m·c·ΔT to calculate heating energy (in J or kJ) for a given substance
• Convert between common mass and temperature units and report answers with correct units

Learning Objectives

• Explain how energy transfer modes (conduction, convection, and radiation) contribute to an energy budget in real systems.
• Apply conservation of energy to interpret net heat gain, required input energy, and storage effects.
• Use quantitative comparisons and predicted temperature responses to support system-level decisions.+ Show more

Learning Objectives

• Explain how thermal conductivity, specific heat capacity, density, and porosity affect heat flow in building materials.
• Compare thermal and moisture-related trade-offs among fiberglass batts, spray foam, wood framing, and masonry.
• Predict how layered assemblies and air/moisture movement can change effective thermal performance.

Learning Objectives

• Explain how radiant transfer moves energy using electromagnetic waves without direct contact.
• Describe how solar radiation intensity, absorptivity, and emissivity affect net radiative heating.
• Use emissivity differences to predict daytime warming and nocturnal cooling of landscapes and buildings.

Learning Objectives

• Explain how seasonal energy storage and release are driven by solar input and Earth’s energy budget.
• Describe how radiative, sensible, and latent heat transfer contribute to environmental changes.
• Connect seasonal thermal processes to freeze-thaw dynamics, snowpack insulation, and lake stratification.

Learning Objectives

• Describe the main phases shown on a heating curve for a substance.
• Explain why temperature can stay constant during melting and boiling.
• Interpret heating curve data using particle motion and particle interactions.

Learning Objectives

• Explain the particle model of matter using the ideas of tiny particles and constant motion
• Relate temperature to average particle motion and predict how changes in temperature affect observable behavior
• Connect macroscopic properties such as pressure and diffusion to particle collisions and spacing

Learning Objectives

• Explain how air masses with different temperatures and moisture levels interact to form fronts.
• Describe what happens to temperature, wind, clouds, and precipitation near a front.
• Differentiate cold fronts and warm fronts using observable weather patterns.

Learning Objectives

• Explain how the Sun’s energy, atmospheric circulation, and water distribution contribute to Earth’s climate.
• Describe how ocean processes can modify regional climate by changing how heat is stored and released.
• Use cause-and-effect reasoning to predict how changes in climate drivers can shift patterns like drought or wet seasons.

Learning Objectives

• Explain how gravity provides centripetal force to keep objects moving in curved orbits
• Describe why orbits are often elliptical rather than perfect circles
• Connect inertia and changing direction to why bodies remain bound in the solar system+ Show more

Learning Objectives

• Explain how limited resources force people to balance competing needs and outcomes.
• Describe tradeoffs in land use, water use, and ecosystem health during human decision-making.
• Evaluate why different priorities can lead to different management strategies under changing conditions.

Learning Objectives

• Explain how matter (atoms) cycles through an ecosystem using processes such as photosynthesis, respiration, feeding, decomposition, and soil/water transport
• Distinguish matter cycling (reused atoms) from energy flow (one-direction from the Sun with heat dispersing)
• Trace how carbon and nitrogen move among plants, animals, decomposers, and the environment

Learning Objectives

• Explain how predators, prey, and competitors influence access to resources and affect survival and reproduction rates.
• Describe how mutualism and other population interactions can change population size over time.
• Interpret population trends using evidence about both environmental resources and organism responses to one another.

Learning Objectives

• Explain how organisms function as systems with parts that work together to support life processes.
• Describe how internal structures process inputs such as food, oxygen, and water.
• Match body structures to the specific roles they play in digestion, respiration, and circulation.

Learning Objectives

• Compare multiple design options using clear criteria and observed evidence.
• Connect constraints (materials, time, cost, safety) to how outcomes are achieved.
• Explain how tradeoffs are managed when optimizing toward an improved solution.+ Show more

Learning Objectives

• Explain how constraints in a design problem can affect both people and the natural environment.
• Identify environmentally responsible choices by connecting scientific cause-and-effect reasoning to real materials and processes.
• Distinguish between solutions that are technically feasible and those that are socially and environmentally responsible.

Learning Objectives

• Explain how an organism’s traits can affect its fitness in a specific environment.
• Describe how natural selection can shift which heritable traits are favored as environments change.
• Connect heritable variation to how populations respond over time, even within the same species.

Learning Objectives

• Explain how inherited differences and reproduction can create variation in traits within a population
• Describe how trait frequency changes across generations when environmental pressures affect survival and reproduction
• Use examples of measurable traits (such as size, coloration, or disease resistance) to interpret patterns in populations

Learning Objectives

• Explain how matter and energy move between Earth’s geosphere, hydrosphere, atmosphere, and biosphere.
• Describe how changes in one Earth system can trigger changes in another system.
• Use evidence from everyday examples (weather, erosion, water availability) to model Earth system interactions.

Learning Objectives

• Explain the law of conservation of matter using the idea that mass is not created or destroyed in chemical reactions.
• Use balanced-mass reasoning to predict whether the total mass of reactants equals the total mass of products.
• Identify everyday examples (such as sealed containers) that support conservation of matter.

Learning Objectives

• Identify observable evidence that indicates a chemical reaction is occurring.
• Connect macroscopic evidence (gas, color change, precipitate, irreversibility) to particle-level rearrangement.
• Use evidence-based reasoning to distinguish chemical reactions from physical or temporary changes.

Learning Objectives

• Explain how explanatory models represent systems using simplified parts, symbols, and relationships
• Use cause-and-effect and energy-transfer ideas to interpret what a model predicts
• Evaluate how well a model fits observations and how it should be revised when new evidence disagrees

Learning Objectives

• Explain how walls, roofs, windows, and foundations affect a building’s thermal performance.
• Describe how thermal bridging and air infiltration create heat loss or gain.
• Compare insulation placement and continuous barriers and how they reduce energy use.+ Show more

Learning Objectives

• Classify substances as elements, compounds, or mixtures based on composition and uniformity
• Explain the differences between pure substances and mixtures using observable properties
• Identify examples of pure substances and mixtures in everyday contexts and justify the classification

Learning Objectives

• Identify independent, dependent, and controlled variables in a science investigation.
• Describe how controlled variables help make evidence reliable and fair.
• Select appropriate measurement evidence and units that match a scientific question.

Learning Objectives

• Explain how abiotic factors (sunlight, soil, water, temperature, topography) affect ecosystem structure and function.
• Describe cause-and-effect relationships between abiotic conditions and biotic outcomes (plant growth, shelter, survival).
• Compare how ecosystems can change across environmental gradients in Alberta (prairie, parkland, mountain valleys).

Learning Objectives

• Describe how energy flows through a food web using trophic levels (producers, consumers, decomposers).
• Interpret how dependencies among organisms form chains and webs.
• Explain how removing or adding a species can change trophic connections and ecological stability.

Learning Objectives

• Explain how traditional ecological knowledge (TEK) uses observation, classification, and seasonal patterns to support environmental understanding
• Describe how oral histories and place-based knowledge help people interpret species interactions and habitat indicators
• Compare how Indigenous and scientific knowledge systems can complement each other when studying long-term ecosystem change

Learning Objectives

• Explain how wetlands store and release water that affects regional hydrology.
• Describe how wetlands cycle nutrients and help improve water quality.
• Connect wetland habitats to biodiversity, including amphibians and migratory birds.+ Show more

Learning Objectives

• Explain equilibrium as a state where net force is zero and motion does not change
• Differentiate static equilibrium from dynamic equilibrium using examples and force diagrams
• Identify balanced force pairs and predict how structures respond to gravity and wind

Learning Objectives

• Explain how bending, shear, and deflection describe beam performance under loads
• Identify how span, support conditions, and load type affect beam stability and comfort
• Use span-to-depth ratio and material stiffness ideas to predict when a beam may bend or sag too much

Learning Objectives

• Explain how kinetic and potential energy are related through energy transfer in mechanical systems.
• Use conservation of mechanical energy to predict how changes in height, mass, and speed affect motion (ignoring friction).
• Describe how safety and structural loading depend on how energy changes with speed and elevation.

Learning Objectives

• Explain how physical properties (such as particle size, solubility, magnetism, and boiling point) can be used to separate mixtures.
• Identify appropriate separation methods for different mixtures based on the properties of their components.
• Describe how separation efficiency can be judged by comparing starting materials and end products.

Learning Objectives

• Explain how solubility depends on the nature of the solute and solvent, temperature, and pressure.
• Describe how surface area, particle size, and agitation affect the rate and extent of dissolution.
• Apply solubility factors to real-world situations such as lake salt changes and winter road de-icing.

Learning Objectives

• Explain how relative dating uses rock layers and observable relationships to determine the order of geologic events.
• Use the principles of superposition and cross-cutting relationships to infer which features formed first and which formed last.
• Construct a simple relative geologic history from rock observations when absolute ages are not available.

Learning Objectives

• Explain how orogeny forms mountains through crustal shortening, thickening, and uplift during plate convergence.
• Describe how continental collisions and subduction-related compression contribute to mountain-belt structures.
• Connect erosion and isostatic adjustment to how uplifted mountain landscapes evolve over time.

Learning Objectives

• Classify rocks as igneous, sedimentary, or metamorphic based on their formation process and common textures.
• Use evidence such as grain size, mineral composition, and rock structures to identify rock types.
• Explain how Earth’s heat, pressure, and fluid activity can change existing rocks over time.

Learning Objectives

• Explain how physical, chemical, and biological weathering break down rock at Earth’s surface
• Describe how freeze-thaw cycles and other mechanisms lead to rock fragmentation
• Connect soil formation and differential weathering to landscape change and erosion risk+ Show more

Learning Objectives

• Explain how chemical change indicators (gas, color change, temperature change, precipitate, and irreversibility) provide evidence that new substances formed.
• Compare chemical vs. physical changes using observed and measured evidence.
• Use multiple indicators and basic data to support a claim that a chemical change occurred.

Learning Objectives

• Identify the system boundary in real-world examples and explain what it includes.
• Distinguish closed systems from open systems based on matter crossing the boundary.
• Predict how mass changes (or does not change) when matter transfers occur.+ Show more

Learning Objectives

• Explain how conservation of mass is tested using total mass of reactants and products in a closed system
• Describe how accurate mass measurements depend on system boundaries, including gases and dissolved species
• Use measurement data to justify whether mass is conserved in a chemical change

Learning Objectives

• Explain how nonliving factors (temperature, light, water availability, soil characteristics, and salinity) limit which species can survive in an area
• Describe how gradients and microclimates affect organisms’ physiological tolerances and seasonal patterns
• Use terrestrial and aquatic examples to connect abiotic variability to habitat suitability and community composition

Learning Objectives

• Explain energy flow through food chains, food webs, and trophic pyramids.
• Describe how matter cycles in ecosystems, including the roles of decomposers and nutrient recycling.
• Evaluate how changes in inputs or energy pathways can shift community composition and ecosystem processes.+ Show more

Learning Objectives

• Describe how competition, predation, mutualism, and parasitism affect species interactions and ecological niches
• Explain how niche partitioning reduces competition and helps multiple species coexist
• Identify how keystone species influence community composition and stability+ Show more

Learning Objectives

• Distinguish homogeneous mixtures from heterogeneous mixtures using observable properties.
• Select an appropriate separation method based on differences in solubility, particle size, and boiling point.
• Explain how physical separation can produce distinct fractions without changing chemical identities.

Learning Objectives

• Explain how an engineering design’s intended function guides choices in structure, mechanics, and electricity.
• Identify common constraints (cost, materials, safety, weight, durability) and how they affect engineering trade-offs.
• Use grade-appropriate quantitative reasoning to estimate performance for forces, energy, and current.+ Show more

Learning Objectives

• Explain how friction acts as a contact force that resists motion and how surface roughness changes friction’s effect
• Describe how gravity is a long-range force that causes acceleration near planetary surfaces
• Differentiate weight, normal force, and friction using examples such as sliding blocks and objects on inclined planes+ Show more

Learning Objectives

• Interpret distance–time and velocity–time graphs to describe motion patterns (uniform motion, speeding up, slowing down, and rest).
• Use slope information on graphs to make qualitative claims about speed and direction.
• Connect the area under a velocity–time graph to the idea of displacement (conceptually).