Grade 7 Science Worksheets

Learning Objectives

• Explain how internal and external Earth processes can reshape landscapes.
• Identify evidence of surface processes using rock strata, landforms, and hazard history.
• Use clues from present-day topography to infer how a region may have changed over time.

Learning Objectives

• Explain the purpose of ecosystem models.
• Identify key details about conceptual and quantitative modelling.
• Describe model inputs, assumptions, and limitations.+ Show more

Learning Objectives

• Explain how energy moves through trophic levels using producers, consumers, and decomposers.
• Describe how photosynthesis and cellular respiration capture and release energy.
• Interpret energy pyramids and estimate how energy decreases between trophic levels using typical transfer efficiencies.+ Show more

Learning Objectives

• Understand the various types of structural connections such as bolted, welded, and bearing.
• Identify the roles of joints in load transfer, redundancy, and stability of structures.
• Describe shear, bearing, and slip phenomena at connections.+ Show more

Learning Objectives

• Understand what habitat fragmentation is and how it affects ecosystems.
• Identify concepts like edge effects, connectivity, and biodiversity loss related to habitat fragmentation.
• Explain the impact of fragmentation on species interaction, gene flow, and extinction risk.+ Show more

Learning Objectives

• Understand key concepts of measurement accuracy and precision.
• Identify sources of systematic and random errors in measurements.
• Apply significant figures and calibration techniques to experimental data.+ Show more

Learning Objectives

• Distinguish between homogeneous and heterogeneous mixtures.
• Describe various separation techniques such as filtration, distillation, chromatography, and magnetic separation.
• Relate solubility, particle size, and boiling point differences to separation methods.+ Show more

Learning Objectives

• Describe 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 phases.
• Identify observational evidence that connects positional relationships to predictable solar and lunar patterns.+ Show more

Learning Objectives

• Explain how water, storms, earthquakes, and volcanic activity change Earth’s surface in both gradual and sudden ways
• Describe how erosion and sediment deposition reshape local landforms
• Identify evidence of surface change processes in real-world landscapes

Learning Objectives

• Identify the parts of an inclined plane
• Understand how force components work on an inclined plane
• Calculate mechanical advantage of inclined planes+ Show more

Learning Objectives

• Explain how conduction, convection, and radiation contribute to heat transfer in energy systems.
• Use energy budget ideas and conservation concepts to interpret net heat gain and energy losses.
• Connect component-level heat transfer information to system-level predictions (e.g., temperature response).

Learning Objectives

• Understand the different types of weathering, erosion, transport, and deposition processes shaping Earth's surface.
• Identify agent-specific signatures and landform examples associated with surface processes.
• Connect rates of landscape change with geologic timescales and agent activity.+ Show more

Learning Objectives

• Explain how heritable variation influences trait frequencies over generations
• Identify how environmental pressures affect survival and reproduction
• Explain how differential survival and reproduction can produce adaptation+ Show more

Learning Objectives

• Explain how scientists monitor human impacts using environmental indicators.
• Analyze how land-cover change, water-quality indicators, and air-quality measurements reveal trends over time.
• Evaluate mitigation strategies and trade-offs between human needs and ecosystem resilience.

Learning Objectives

• Explain how waves transfer energy without permanently moving matter.
• Differentiate transverse and longitudinal waves using particle motion and wave features.
• Relate amplitude and wavelength to the energy and pattern of a wave.

Learning Objectives

• Use astronomical units and light-years to compare distances in space.
• Interpret planetary diameters and orders of magnitude to understand scale.
• Explain how logarithmic thinking and scale change what we can observe.

Learning Objectives

• Explain how evaporation and controlled cooling can create supersaturation and lead to crystallization.
• Describe nucleation and crystal growth and how these steps affect crystal size and shape.
• Identify factors such as evaporation rate, temperature profile, and impurities that influence crystal purity and yield.+ 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 functional requirements and constraints guide engineering design choices from problem definition to solution selection.
• Describe how performance objectives (such as load capacity, stiffness, and serviceability) influence design decisions.
• Use a simple decision matrix and sketches to compare concept options and justify a preferred solution using criteria and trade-offs.+ Show more

Learning Objectives

• Describe how magma composition and eruption style affect volcanic landforms.
• Identify different types of volcanoes and their characteristic features.
• Explain the tectonic settings that produce various volcanic structures.+ Show more

Learning Objectives

• Explain what ecosystem resilience is and how it relates to recovery after disturbances.
• Describe how disturbances can change habitat, resource timing, and species interactions.
• Use population growth and decline patterns to make predictions about future ecosystem stability.

Learning Objectives

• Explain how energy enters an ecosystem and moves through trophic levels (producers to consumers).
• Describe why energy decreases at each transfer between trophic levels.
• Compare the roles of producers, consumers, and decomposers in energy flow.+ Show more

Learning Objectives

• Analyze and interpret hazard maps, recurrence intervals, and probabilistic forecasts to assess risk.
• Compare short-term event behavior with long-term trends in natural hazard occurrence and vulnerability.
• Explain how natural hazards can cause cascading impacts to infrastructure and ecosystems.

Learning Objectives

• Identify conduction, convection, and radiation as heat-transfer modes
• Explain conduction using particle motion and direct contact
• Describe convection using density differences and fluid movement+ Show more

Learning Objectives

• Understand the interactions between predator and prey populations.
• Identify cause-and-effect relationships in ecological communities.
• Analyze feedback loops that lead to population cycles.+ Show more

Learning Objectives

• Explain how gravitational, elastic, and magnetic potential energy depend on an object’s arrangement or spacing.
• Use models to predict how changing position or interactions at a distance affects stored energy.
• Connect potential energy in a system to the motion or work that can happen when the configuration changes.

Learning Objectives

• Understand the relationship between heat, mass, and temperature change using the equation Q = mcΔT.
• Identify units such as joules and watts used for measuring heat energy.
• Apply heat calculation formulas to practical problems involving different substances.+ Show more

Learning Objectives

• Understand the concept of biodiversity and why it matters in ecosystems
• Identify and interpret key biodiversity metrics such as species richness and evenness
• Explain how diversity indices reflect community structure across habitats+ Show more

Learning Objectives

• Understand the concept of equilibrium as the balance of forces resulting in constant velocity or rest.
• Identify the differences between static and dynamic equilibrium.
• Apply qualitative and simple quantitative analyses to predict outcomes of objects at rest or moving uniformly.+ Show more

Learning Objectives

• Explain the biological and chemical processes involved in decomposition.
• Identify the roles of detritivores, fungi, and bacteria in nutrient cycling.
• Describe how abiotic factors influence the rate of decomposition.+ Show more

Learning Objectives

• Interpret balanced chemical equations to determine the mole-to-mole relationships between reactants and products.
• Use ratio reasoning and unit consistency to convert between amounts of substances during chemical transformations.
• Scale reactant and product quantities proportionally and predict outcomes using conservation of matter.

Learning Objectives

• Define carrying capacity and explain its significance in ecosystems.
• Identify limiting factors that influence population size.
• Describe how excess populations affect available resources and environment health.+ Show more

Learning Objectives

• Explain how buoyancy and density differences drive convection in air and water
• Describe how temperature gradients influence circulation cells and heat transport rates
• Connect convective processes to real-world examples such as sea/land breezes, thermals, and lake overturning

Learning Objectives

• Explain how energy can change from one form to another while obeying conservation of energy.
• Describe energy transfer and unavoidable thermal losses in real energy-conversion devices.
• Compare efficiency using qualitative ideas and energy accounting across transformation steps.

Learning Objectives

• Explain how converging tectonic plates can cause crustal shortening, thickening, and uplift during orogeny.
• Describe how continental collisions and subduction zones produce different mountain-belt features.
• Connect erosion and isostatic adjustment to how mountains change over time.

Learning Objectives

• Identify independent, dependent, and controlled variables in a scientific investigation
• Explain why controlled variables are necessary for fair comparisons
• Interpret relationships shown in data tables and graphs by linking dependent and independent variables

Learning Objectives

• Define specific heat capacity and explain what its units mean in terms of energy and temperature change.
• Use the heat equation to describe how mass, specific heat, and temperature change affect the energy transferred.
• Convert between joules and kilojoules and between grams and kilograms when solving heat-related problems.

Learning Objectives

• Understand basic concepts of population growth and decline.
• Distinguish between exponential and logistic growth models.
• Identify limiting factors affecting populations.+ Show more

Learning Objectives

• Understand the principles of convective heat transfer in fluids.
• Identify the factors influencing buoyancy and density variations.
• Explain the formation of circulation cells in air and water environments.+ Show more

Learning Objectives

• Identify observable evidence that a chemical change has occurred.
• Explain, using a particle-level model, how bonds can break and form during a chemical change.
• Distinguish chemical changes from physical changes based on whether new substances form.

Learning Objectives

• Identify the main idea and key details about oral histories as ecological records
• Explain how place-based knowledge helps interpret ecological relationships and seasonal cycles
• Describe how stewardship practices connect human choices to long-term environmental patterns

Learning Objectives

• Explain how physical separation can separate components of oil sands using density and particle size.
• Describe how chemical treatment and temperature changes affect emulsions and dissolved organics.
• Classify processing steps as physical versus chemical changes in bitumen extraction.

Learning Objectives

• Understand the systematic approaches used in ecological inquiry.
• Identify key variables and evidence used to interpret ecological data.
• Analyze local examples such as riparian health of the Bow River.+ Show more

Learning Objectives

• Understand the concept of mutualism and identify examples in nature
• Analyze how species interactions influence ecological niches
• Recognize the roles of different interactions such as competition and parasitism

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

• Identify observable indicators that a chemical reaction has occurred, such as gas production, precipitate formation, color change, and temperature change.
• Explain why chemical reactions are often irreversible in composition, using evidence from reaction outcomes.
• Use mass measurements and the conservation of mass to distinguish chemical changes from physical changes.

Learning Objectives

• Understand how energy flows through food webs from producers to consumers.
• Explain the process of matter cycling in ecosystems and its importance.
• Identify the roles of producers, consumers, and decomposers in an ecosystem.+ Show more

Learning Objectives

• Explain the causes and effects of urban heat island phenomena.
• Identify factors contributing to urban heat and mitigation strategies.
• Analyze how urban surface materials and urban design influence local microclimates.+ Show more