Grade 7 Science Worksheets

Learning Objectives

• Understand relative sizes and distances within the solar system and beyond.
• Express astronomical measurements using units such as astronomical units, light-years, and planetary diameters.
• Analyze orders of magnitude differences and their impact on observations and scale perception.+ Show more

Learning Objectives

• Explain how gravitational attraction influences orbital motion within the solar system.
• Understand the mathematical relationships that describe orbital velocity and centripetal force.
• Identify observational evidence supporting theories of orbital motion, stability, and perturbations.+ Show more

Learning Objectives

• Understand the principles of relative dating such as superposition, original horizontality, and cross-cutting relationships.
• Identify and interpret stratigraphic markers like fossils, unconformities, and intrusions for age correlation.
• Apply stratigraphic principles to construct sequences of Earth’s geological events.+ Show more

Learning Objectives

• Analyze test data to identify factors affecting design performance.
• Refine design parameters iteratively based on quantitative comparisons.
• Justify modifications with evidence to improve design solutions within constraints.+ Show more

Learning Objectives

• Understand how to define design problems by setting clear criteria and measurable constraints.
• Learn to translate societal and environmental needs into quantitative targets.
• Recognize real-world examples of specifying success measures and constraints.+ Show more

Learning Objectives

• Understand the process of systematically evaluating different design solutions.
• Apply modeling and comparative analysis techniques to assess trade-offs.
• Identify and quantify factors such as performance, cost, durability, and manufacturability.+ Show more

Learning Objectives

• Explain how energy transfers between objects during various scenarios like braking and bouncing.
• Identify and describe different forms of energy transfers in real-world situations.
• Understand the concept of energy bookkeeping and how to account for changes in motion energy.+ Show more

Learning Objectives

• Understand how devices convert energy from one form to another.
• Identify examples of energy transformation in real-world devices.
• Explain the principles of energy transfer and conservation, including thermal losses.+ Show more

Learning Objectives

• Construct and interpret graphical relationships between kinetic energy, potential energy, mass, and speed.
• Understand how doubling mass or speed affects kinetic energy through quantitative analysis.
• Analyze energy calculations and correlate motion graphs with energy changes.+ Show more

Learning Objectives

• Explain the concept of potential energy as stored energy based on object arrangement and interactions.
• Identify different types of potential energy, such as gravitational, elastic, and magnetic.
• Describe how changes in spatial configuration affect stored potential energy.+ Show more

Learning Objectives

• Understand how comparative anatomy provides evidence for evolution.
• Identify homologous, analogous, and vestigial structures among species.
• Interpret morphological data to infer phylogenetic relationships and adaptive divergence.+ Show more

Learning Objectives

• Analyze how increases in human population and per-capita consumption affect demand for water, energy, land, and raw materials.
• Evaluate the environmental consequences of population growth on biodiversity, freshwater resources, and carbon emissions.
• Compare regional examples to understand how consumption patterns influence environmental pressures.+ Show more

Learning Objectives

• Describe the main processes involved in the water cycle, including evaporation, condensation, precipitation, infiltration, runoff, and groundwater flow.
• Illustrate the interactions among Earth’s atmosphere, hydrosphere, and geosphere in water movement.
• Explain the pathways and residence times of water within different Earth systems such as river basins, aquifers, and coastal waters.+ Show more

Learning Objectives

• Define net force as the vector sum of all forces acting on an object.
• Describe how unbalanced forces cause changes in motion.
• Explain the relationship between net force, mass, and acceleration using diagrams and reasoning.+ Show more

Learning Objectives

• Describe the cyclic patterns produced by the relative motions of the Sun, Earth, and Moon.
• Explain how orbital geometry and axial tilt influence day-night cycles and lunar phases.
• Analyze observational records and phase sequences to connect positional relationships with predictable patterns in the solar system.+ Show more

Learning Objectives

• Understand how DNA molecules organize into chromosomes and encode genes influencing traits.
• Explain the process of chromosome segregation during gamete formation and fusion.
• Describe how genetic variations in DNA sequences result in trait differences, such as eye color or structural proteins.+ Show more

Learning Objectives

• Understand how phenotype results from the interaction of genetics and environment.
• Identify examples of environmental influences on traits.
• Distinguish between inherited genetic traits and environmentally modulated traits.+ Show more

Learning Objectives

• Understand how probability applies to genetic inheritance and predict offspring genotypes and phenotypes.
• Interpret Punnett square outcomes to determine likelihoods of traits in children.
• Calculate expected ratios for monohybrid crosses involving dominant and recessive alleles.+ Show more

Learning Objectives

• Understand the mechanisms of heat transfer: conduction, convection, radiation, sound, and electric current.
• Identify examples and measurable evidence of different heat transfer methods.
• Describe how temperature changes and rate differences distinguish modes of energy movement.+ Show more

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

• Identify and describe ecological levels of organization from individuals to ecosystems
• Explain how higher-level patterns (population, community, ecosystem) can’t be predicted from individual traits alone
• Use examples (such as trout in Alberta waters) to distinguish levels by their properties and processes

Learning Objectives

• Explain how energy flows through producers, consumers, and decomposers in a food web
• Describe how organisms are connected through feeding relationships and dependency chains
• Analyze how removing or adding a species can change trophic connections and affect ecosystem stability

Learning Objectives

• Explain how ecological inquiry uses hypotheses, measurable variables, and evidence to support conclusions.
• Identify examples of variables and explain why limits and natural variability matter when interpreting ecological data.
• Use data and reasoning to evaluate how human activities can affect ecological relationships.

Learning Objectives

• Explain why long-term ecological monitoring uses standardized sampling protocols
• Identify common monitoring methods (fixed-site surveys, point counts, remote sensing, and water quality sampling)
• Describe how sampling design, temporal replication, and data quality improve the reliability of ecological trends+ Show more

Learning Objectives

• Explain how abiotic factors (sunlight, water, temperature, soil, and topography) influence where organisms can survive
• Describe how biotic interactions (plants, animals, and microbes) respond to changing abiotic conditions
• Use cause-and-effect reasoning to predict how ecosystem patterns differ across regional environmental gradients

Learning Objectives

• Explain how food availability and breeding needs drive seasonal and annual migration patterns.
• Describe how timing cues and energetic demands influence when organisms move between habitats.
• Interpret how migratory connectivity links ecosystems and supports biodiversity across regions.

Learning Objectives

• Explain how conservation status assessments combine population trends, threat severity, and recovery potential to estimate risk
• Identify how land use, genetic diversity, and habitat connectivity can increase or decrease vulnerability
• Interpret evidence used in conservation status and describe how results can guide regional priorities

Learning Objectives

• Describe how wetlands regulate water at the landscape scale through storage, slow release, and flood buffering.
• Explain how wetlands support ecosystem services through nutrient cycling and filtration.
• Identify how wetland type (e.g., peatlands vs. marshes) relates to different habitats and biological functions.+ Show more

Learning Objectives

• Identify and distinguish mutualism, commensalism, and parasitism using key features
• Explain how symbiosis relationships affect population size, resource use, and survival
• Use examples from Alberta habitats to describe real-world ecological consequences

Learning Objectives

• Explain equilibrium in terms of net force being zero and how it affects motion
• Distinguish static equilibrium from dynamic equilibrium using real-world examples
• Interpret and describe force diagrams qualitatively (direction and relative size) to identify balanced forces+ Show more

Learning Objectives

• Explain how beam behavior includes bending, shear, and deflection under different loads.
• Identify how span, support conditions, and span-to-depth ratio affect beam stiffness and safety.
• Use vocabulary from beam loading scenarios to judge whether a design meets service stability and comfort needs.

Learning Objectives

• Explain how integrated systems analysis connects forces, motion, and structural safety when comparing design options.
• Use mechanical advantage and simple reasoning about motion to predict how design changes affect performance.
• Evaluate structural factors such as deflection and safe stress levels under wind, snow, and load conditions.+ Show more

Learning Objectives

• Explain how static and kinetic friction oppose motion and affect starting and stopping.
• Describe how normal force and surface texture influence the frictional force.
• Compare friction with aerodynamic drag and predict how each can change acceleration and stopping distance.

Learning Objectives

• Translate distance–time and speed–time data into correctly labeled graphs and interpret what the curves mean
• Use slope to explain changes in motion, including how faster speeds relate to steeper lines on graphs
• Determine average and instantaneous rates from motion graphs and connect these to real situations

Learning Objectives

• Identify examples of the six simple machines and describe how each one changes force magnitude or direction
• Explain mechanical advantage as a comparison of output force to input force, using appropriate units and reasoning
• Apply relationships among force, distance, and machine geometry to predict outcomes for everyday tools

Learning Objectives

• Describe motion using distance and time, and identify appropriate units for each quantity
• Calculate average speed using the relationship speed = distance ÷ time
• Recognize common sources of measurement error and explain how they affect calculated speed+ Show more

Learning Objectives

• Explain how birth and death rates, immigration and emigration, and abiotic constraints affect population size and distribution
• Describe how regional factors (such as seasonal water, fire regimes, disease, and land-use change) can cause population fluctuations
• Use population trends to reason about local extirpations and expansions

Learning Objectives

• Explain how truss geometry (triangles) helps distribute loads through tension and compression instead of bending.
• Use qualitative reasoning with the method of joints to identify whether members are likely in tension or compression.
• Compare truss designs using efficiency and redundancy criteria for real bridge and roof applications.+ Show more

Learning Objectives

• Define forces as interactions that can change an object’s motion.
• Distinguish contact forces from non-contact forces using real examples.
• Explain how net force affects acceleration and motion.+ Show more

Learning Objectives

• Classify processes used to extract bitumen from oil sands as physical separation or chemical change
• Explain how density, particle size, temperature, and additives affect mixture behavior during processing
• Identify evidence of emulsions, dissolved organics, and product separation in real-world separation steps

Learning Objectives

• Explain how supports, foundations, and load paths help structures stay stable under common forces.
• Identify compression, tension, and shear and describe how each affects parts of beams, columns, and foundations.
• Use material properties (stiffness, strength, durability) to evaluate structural safety for typical Alberta wind and snow loads.

Learning Objectives

• Explain how common anthropogenic pollutants (nutrient runoff, hydrocarbons, and airborne deposition) move through terrestrial and aquatic ecosystems.
• Describe measurable ecological effects of pollution, including organism health changes and food web disruption.
• Use cause-and-effect reasoning to connect pollutant sources to ecosystem chemistry and community-level outcomes.

Learning Objectives

• Explain how free-body diagrams represent all forces acting on an object
• Determine the net force magnitude and direction by combining perpendicular force components
• Decompose forces on inclined surfaces into parallel and perpendicular components

Learning Objectives

• Explain how biodiversity can be described using richness, evenness, and habitat heterogeneity.
• Interpret what different biodiversity metrics may indicate about ecosystem resilience and ecological function.
• Connect habitat complexity to changes in species assemblages in Alberta-like environments.

Learning Objectives

• Identify observable evidence that a chemical change has occurred (color change, gas production, precipitate formation, temperature/energy change, odor change).
• Explain chemical change at the particle level as bond breaking and bond forming, not just particle rearrangement.
• Use evidence from real-world examples (rusting iron, combustion of natural gas) to support claims about chemical vs. physical changes.

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

• 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 the law of conservation of mass in a closed system during physical and chemical changes.
• Use the idea of atoms being rearranged to predict whether total mass changes when no matter enters or leaves.
• Identify evidence from sealed-container observations that supports conservation of mass.