Grade 7 Science Worksheets

Learning Objectives

• Explain how standardized long-term ecological monitoring helps detect directional change in species and habitats.
• Identify and compare common monitoring methods used in Alberta (fixed-site surveys, point counts, remote sensing, and water quality sampling).
• Describe how sampling design, temporal replication, and data quality improve the reliability of conclusions.

Learning Objectives

• Explain how distance, time, and speed are related and identify appropriate units.
• Calculate average speed using distance and time and interpret results in context.
• Recognize common sources of measurement error and describe how they affect motion data.+ Show more

Learning Objectives

• Explain how early embryonic structures can be conserved across different animal groups
• Compare embryonic features (pharyngeal pouches, limb buds, and body-plan patterns) across taxa
• Use developmental timing to support ideas about evolutionary relationships

Learning Objectives

• Explain how fossil patterns in stratigraphic layers provide evidence for common ancestry and evolutionary change over geologic time.
• Use index fossils and correlations between sedimentary layers to infer relative ages and interpret changes in fossil assemblages.
• Analyze how transitional fossils and morphological trends support ideas about lineage continuity, radiations, and mass extinctions.

Learning Objectives

• Distinguish physical properties from chemical properties using qualitative and quantitative descriptors.
• Use measurable property data (density, melting point, solubility, conductivity) to compare and identify materials.
• Explain how reactivity and flammability indicate chemical change risk during temperature or contact.

Learning Objectives

• Explain how control methods reduce the influence of unrelated factors in an investigation.
• Identify control and comparison conditions and describe how they should be kept consistent.
• Use proper timing, calibration, and standardized procedures to support credible conclusions.+ Show more

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 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 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

• 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 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

• Describe how the particle model represents matter as discrete particles with spaces and motion.
• Use particle motion and arrangement to explain macroscopic properties such as state of matter and diffusion.
• Differentiate physical changes from chemical changes using the particle model (rearrangement vs new substances).

Learning Objectives

• Explain how phase changes relate to changes in particle kinetic energy and potential energy.
• Describe latent heat as energy transferred during a phase change without changing chemical identity.
• Interpret energy absorption versus energy release for melting, freezing, evaporation, and condensation.

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 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

• 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 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

• 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

• 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 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

• 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).

Learning Objectives

• Explain inertia using Newton’s First Law and predict how motion changes when a net force acts
• Use Newton’s Second Law to describe how acceleration depends on net force and mass
• Identify action–reaction pairs and predict how forces between objects affect motion+ Show more

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 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 the difference between genotype and phenotype using genetics vocabulary
• Predict how dominant and recessive alleles can lead to observable traits
• Describe how environmental factors can influence phenotype even when genotype is the same

Learning Objectives

• Explain how natural selection changes trait frequencies in a population over many generations.
• Describe the difference between heritable traits and traits gained during an individual’s lifetime.
• Use examples (such as antibiotic resistance) to identify variation, selection, survival, and reproduction.

Learning Objectives

• Explain what air masses are and how their temperature and moisture help determine weather.
• Describe how fronts form when air masses with different properties meet.
• Compare the typical weather effects of cold fronts and warm fronts.+ Show more

Learning Objectives

• Explain how gravity and water-driven forces contribute to mass wasting and coastal erosion.
• Describe how heavy rain and slope stability affect the likelihood of landslides.
• Identify how waves and storm surge reshape coastlines over time.

Learning Objectives

• Explain how balanced forces produce zero net force and constant velocity
• Describe how unbalanced forces produce nonzero net force and acceleration
• Use real-world examples (such as tug-of-war) to predict motion outcomes

Learning Objectives

• Differentiate between mass and weight and explain how weight changes with gravity.
• Describe how gravity affects the motion of falling objects near Earth.
• Use evidence from comparing objects with different masses to support ideas about net force and motion.