Grade 7 Worksheets

Learning Objectives

• Describe different species interactions that influence ecological niches.
• Identify examples of mutualism, predation, competition, and parasitism in ecosystems.
• Explain how niche partitioning reduces competition among species.+ Show more

Learning Objectives

• Define explanatory models and explain why they are simplified rather than exact replicas of real systems.
• Describe how cause-and-effect mechanisms and energy transfers can be used in explanations based on a model.
• Evaluate a model’s usefulness by comparing how well it matches observations and how accurately it predicts new evidence.

Learning Objectives

• Describe the differences between homogeneous and heterogeneous mixtures.
• Identify examples of solutions, colloids, and suspensions based on particle size and separation behavior.
• Explain concepts like solubility, saturation, and colligative effects in mixtures.+ Show more

Learning Objectives

• Understand how physical and biological disturbances influence ecosystem dynamics.
• Interpret empirical data to determine causes of population changes in ecosystems.
• Describe mechanisms of ecosystem resilience, resistance, and succession.+ Show more

Learning Objectives

• Explain how friction and other resistive forces oppose motion
• Describe how surface texture and air resistance affect how quickly objects slow down
• Connect resistive forces to changes in motion and energy during real-world examples

Learning Objectives

• Understand the mechanisms of natural selection and how they lead to adaptation in populations.
• Identify examples of natural selection in real-world scenarios such as antibiotic resistance and beak size variation.
• Analyze how environmental pressures influence evolutionary changes over generations.

Learning Objectives

• Explain how empirical investigations and evidence support scientific explanations
• Evaluate how new data can refine, adjust, or replace scientific models
• Describe uncertainty as a normal part of scientific reasoning and communicate methods transparently+ Show more

Learning Objectives

• Explain how inclined planes change the effective force needed to move a load.
• Identify and describe force components parallel and perpendicular to a ramp.
• Calculate mechanical advantage using load and input force.+ Show more

Learning Objectives

• Explain how inherited traits are passed from parents to offspring using genetic information in reproductive cells
• Distinguish between inherited traits and environmental causes of differences among individuals
• Use predictable patterns to interpret offspring trait outcomes based on parental variation

Learning Objectives

• Classify bitumen separation steps as physical or chemical processes based on how substances change.
• Explain how density, particle size, temperature, and additives affect emulsions and dissolved organics.
• Use evidence from a process description to describe mixture behavior and expected product outcomes.

Learning Objectives

• Explain how tectonic activity, weathering, erosion, and deposition shape Earth’s surface.
• Distinguish between weathering and erosion using examples from real landscapes.
• Describe how deposition can change the location of sediments over time.+ Show more

Learning Objectives

• Explain how planetesimals and accretion can lead to planets forming in the early solar system.
• Compare terrestrial planets and gas giants using properties such as size, surface or atmospheric characteristics, and moons.
• Describe how orbital eccentricity and phases relate to how we observe planets from Earth.+ Show more

Learning Objectives

• Explain the kinetic particle model using particle spacing, particle motion, and intermolecular forces.
• Predict how changes in temperature or applied force can affect diffusion, thermal expansion, density, pressure response, and compressibility.
• Connect micro-scale particle behavior to measurable macro-scale trends in experiments.

Learning Objectives

• Define physical and chemical properties and explain how they help classify substances.
• Use quantitative observable criteria (e.g., density, solubility, hardness, conductivity, magnetism, flammability) to distinguish among elements, compounds, and mixtures.
• Apply property-based tests to identify practical examples of metals, dissolving substances, magnetic materials, and combustibility.

Learning Objectives

• Explain how magma composition influences volcanic landforms (shield volcanoes vs. stratovolcanoes and deposits).
• Describe how eruption style affects what materials volcanoes produce (lava flows vs. pyroclastic deposits).
• Compare volcanic features formed at different tectonic settings, including subduction zones and hotspots.+ Show more

Learning Objectives

• Define states of matter in terms of particle arrangement and particle motion (energy).
• Describe and distinguish phase changes: melting, freezing, vaporization, condensation, and sublimation.
• Explain how temperature and pressure affect phase transitions, including boiling point changes with atmospheric pressure.+ Show more

Learning Objectives

• Compare mutualism, commensalism, and parasitism based on how both species are affected.
• Use ecological examples to explain how symbiosis influences population sizes and community structure.
• Describe how adaptations and coevolution can develop in species that interact over time.

Learning Objectives

• Explain how diffusion occurs due to the continual motion of particles moving from higher concentration to lower concentration
• Distinguish mixing from diffusion and describe how mixing can occur without particles stopping or changing into new substances
• Predict how temperature affects the rate of diffusion using the particle model

Learning Objectives

• Explain how anthropogenic pollutants enter aquatic and terrestrial ecosystems through different exposure pathways.
• Describe how pollution can affect organism health and disrupt food web integrity.
• Connect pollutant sources (nutrient runoff, hydrocarbons, airborne deposition) to measurable ecological changes.

Learning Objectives

• Explain how human activities can alter ecosystems through habitat fragmentation, pollution, and invasive species.
• Describe how these changes can shift biodiversity, food-web structure (trophic structure), and ecosystem services over time.
• Evaluate mitigation and restoration strategies and predict how they may affect ecosystem recovery.

Learning Objectives

• Explain how push and pull forces can change an object’s state of motion.
• Distinguish between contact forces and non-contact forces with real-life examples.
• Describe the relationship between net force and resulting acceleration in qualitative terms.

Learning Objectives

• Explain that energy can change forms through energy transformations while total energy is conserved.
• Identify common energy forms (mechanical, chemical, electrical, thermal) and trace how they transform in real systems.
• Use energy transformation ideas to interpret examples such as hydroelectric power, wind turbines, and fuel combustion.

Learning Objectives

• Identify the three main tectonic boundary types and describe the motion between tectonic plates at each one
• Explain how boundary types create characteristic landforms, volcanic activity, and earthquake patterns
• Use evidence from descriptions to determine which boundary type is most likely occurring

Learning Objectives

• Explain how tectonic stress and rock strength lead to sudden slip along faults during earthquakes.
• Compare normal, reverse, and strike-slip fault motion and connect each type to local stress regimes.
• Describe how earthquake waves travel through Earth and how depth, magnitude, and local geology affect intensity.+ Show more

Learning Objectives

• Describe how simple machines change the size and/or direction of a force to make work easier.
• Explain mechanical advantage and connect it to the geometry of a machine.
• Identify and compare lever, pulley, wedge, screw, inclined plane, and wheel-and-axle in everyday contexts.+ Show more

Learning Objectives

• Explain conservation of mass in a closed system using the idea that atoms are conserved during physical and chemical changes
• Predict whether measured mass before and after a reaction will be equal in a sealed container and justify the prediction
• Describe how reactants and products relate to mass in observable sealed-container situations

Learning Objectives

• Identify major eukaryotic cell organelles (nucleus, mitochondria, chloroplasts, and cell membrane) and describe their primary functions.
• Explain how organelle specialization supports cell survival and contributes to tissue and organ performance in multicellular organisms.
• Connect cellular energy capture in producers (photosynthesis) versus consumers (cellular respiration) to larger-scale ecological interactions.

Learning Objectives

• Describe how loads transfer through structural members using the idea of a load path.
• Differentiate dead loads and live loads and identify common examples of each.
• Recognize where tension, compression, and shear occur in beams, columns, trusses, and connections.+ Show more

Learning Objectives

• Analyze graphs (scatter plots, histograms, and line graphs) to describe patterns and relationships in data.
• Evaluate the strength of evidence by considering outliers and possible measurement uncertainty.
• Use summary statistics such as range and averages to compare data sets and support a claim.

Learning Objectives

• Define solution concentration in terms of solute and solvent and explain what dilution means.
• Compare common concentration measures (mass percent and grams per litre) and identify units.
• Explain how concentration can affect physical properties such as freezing point and boiling point.+ Show more

Learning Objectives

• Explain how Earth’s rotation and axial tilt create day-night cycles and seasonal changes.
• Model lunar phases using the Moon’s relative position to Earth and the Sun.
• Describe how alignment determines when solar and lunar eclipses occur.+ Show more

Learning Objectives

• Describe the main processes of the water cycle: evaporation, condensation, precipitation, infiltration, runoff, and groundwater flow.
• Explain how solar energy and gravity drive water movement among the atmosphere, hydrosphere, and geosphere.
• Trace how water can travel through river basins, aquifers, springs, and oceans, including seasonal snowpack changes.

Learning Objectives

• Identify major eukaryotic cell organelles and describe their main functions in transport, synthesis, and compartmentalization.
• Use models (2D diagrams and 3D representations) to explain how organelle structure supports cell processes.
• Compare features of plant and animal cells and relate differences to examples such as leaf mesophyll and muscle cells.

Learning Objectives

• Distinguish homogeneous and heterogeneous mixtures and identify examples from daily life
• Classify solutions, colloids, and suspensions based on particle size and visibility
• Explain saturation, concentration, and solubility using solute–solvent interactions+ Show more

Learning Objectives

• Explain how energy can be converted from one form to another in common devices.
• Use energy transfer and conservation ideas to track energy in a conversion sequence.
• Describe why thermal energy losses occur and how efficiency is affected.

Learning Objectives

• Describe how tensile, compression, and bending tests reveal key material properties used in design.
• Explain how non-destructive testing (ultrasonic testing and hardness measurements) helps evaluate materials without damaging them.
• Relate material variability, anisotropy (especially in timber and composites), and strain localization to safety factors and design codes.

Learning Objectives

• Differentiate weather and climate using examples involving temperature, precipitation, humidity, and wind.
• Explain how averages and variability over time help describe climate.
• Use evidence from observations to classify a scenario as weather or climate.

Learning Objectives

• Identify observable indicators that a chemical reaction has occurred, including gas production, precipitate formation, color change, and temperature change.
• Explain irreversibility and how it differs from reversible physical changes.
• Use mass measurements from sealed systems to connect reaction evidence to the conservation of matter.

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 recoil and thrust using action-reaction (Newton’s third law) forces.
• Compare how interaction forces are equal and opposite while accelerations can differ because of mass.
• Predict motion changes by reasoning about momentum and force pairs during interactions.

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

• Identify the criteria that make a scientific question testable and measurable
• Form a clear hypothesis and define variables with operational definitions
• Explain how measurement precision, reproducibility, and documentation improve reliability+ Show more

Learning Objectives

• Explain how ports, inland trading posts, and Atlantic markets were connected between 1713 and 1850.
• Describe how merchant networks supported credit, supply, and regional specialization.
• Analyze how tariff and navigation policies affected local economies and trade patterns.+ Show more

Learning Objectives

• Explain how energy moves through an ecosystem using producers, consumers, and decomposers
• Describe how matter cycles while energy flows one-way through trophic levels
• Identify factors that can change ecosystem populations and balance

Learning Objectives

• Explain how square-cube relationships affect forces, weight, and support when objects scale up or down.
• Describe how surface-to-volume ratio changes heat transfer and resistance with scale.
• Use the idea of Reynolds number to predict how fluid-flow behavior can differ between scale models and full-size systems.

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

• 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 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.