Grade 7 Science Worksheets

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

Learning Objectives

• Understand the concept of equilibrium as the balance of forces acting on an object.
• Differentiate between static and dynamic equilibrium.
• Identify forces involved in equilibrium such as gravity, normal force, tension, and net zero acceleration.+ Show more

Learning Objectives

• Evaluate tradeoffs among freshwater sources and treatment options using cost, reliability, energy use, water quality, and environmental impacts.
• Identify constraints that affect water system design, such as infrastructure limits, pollution risk, and altered flow patterns.
• Explain how designs can reduce risk from scarcity and contamination while supporting long-term sustainability.

Learning Objectives

• Describe the general mechanisms of Earth's atmospheric and oceanic circulation driven by solar heating and rotation.
• Identify the different circulation cells, prevailing winds, and their influence on regional climate.
• Explain the role of the Coriolis effect and jet streams in shaping weather patterns.+ Show more

Learning Objectives

• Understand the differences between weather and climate.
• Identify key variables that influence weather and climate.
• Explain how climate is determined by long-term patterns, despite daily weather variability.

Learning Objectives

• Identify the parts of a scientific inquiry plan, including a testable question, hypothesis, variables, and operational definitions
• Explain why measurement precision, careful procedures, and documentation support reproducibility and valid comparisons
• Apply basic laboratory safety and ethical expectations for reporting data

Learning Objectives

• Understand different representations of atomic structures such as particle, ball-and-stick, and lattice models.
• Identify how atomic models illustrate molecular and extended structures like water molecules and salt crystals.
• Connect subatomic particle relationships to atomic number and chemical formulas.+ Show more

Learning Objectives

• Understand the concept of variation in traits within a population.
• Identify factors that influence trait differences among individuals.
• Recognize how environmental pressures can impact trait frequencies over generations.

Learning Objectives

• Explain how food molecules are broken down and rearranged into molecules needed for growth and repair.
• Describe how chemical energy in food becomes usable energy for life processes.
• Use scientific vocabulary (molecules, energy, chemical energy, growth, repair) to answer questions about digestion and body changes over time.

Learning Objectives

• Understand how environmental factors influence phenotypic traits.
• Distinguish between inherited genetic traits and environmentally modulated traits.
• Identify examples of traits affected by environment such as nutrition, UV exposure, and temperature.+ Show more

Learning Objectives

• Identify and describe the mechanisms of heat transfer: conduction, convection, radiation, sound, and electric current.
• Explain how energy transfer affects temperature and rate differences in objects and environments.
• Use examples to illustrate different modes of heat transfer and measure evidence of transfer.

Learning Objectives

• Explain how energy moves from the Sun to primary producers and through trophic levels in an ecosystem.
• Use trophic efficiency ideas to interpret patterns in biomass and energy availability across trophic levels.
• Describe why only a small fraction of energy becomes available for consumers higher in the food chain.

Learning Objectives

• Understand different management strategies for conserving biodiversity.
• Evaluate benefits and trade-offs of habitat corridors, protected areas, and restoration.
• Compare approaches such as invasive species control and sustainable harvest practices.+ Show more

Learning Objectives

• Compare astronomical distances using astronomical units and light-years
• Interpret planet diameters as quantitative measures of cosmic scale
• Estimate orders of magnitude differences in astronomical data+ Show more

Learning Objectives

• Describe how tensile, compression, and bending tests assess material behaviour
• Explain how ultrasonic and hardness testing assess materials non-destructively
• Interpret anisotropy and strain localization in material strength+ Show more

Learning Objectives

• Understand the different types of biotic interactions such as predation, competition, mutualism, commensalism, and parasitism.
• Analyze how human activities can disrupt natural biotic relationships.
• Explain how changes in one species can impact community structure and biodiversity.+ Show more

Learning Objectives

• Understand how running water causes erosion and transports sediments.
• Identify distinctive features that rivers carve and deposit.
• Explain the process of sediment sorting and its significance in reconstructing landscapes.+ Show more

Learning Objectives

• Understand the concept of kinetic energy and how it relates to motion.
• Interpret graphs showing the relationship between kinetic energy, mass, and speed.
• Analyze real-world examples demonstrating changes in kinetic energy.+ Show more

Learning Objectives

• Understand how different materials conduct heat through their atomic structure.
• Compare thermal conduction in metals, ceramics, polymers, and composites.
• Explain how free electrons and lattice vibrations contribute to heat transfer.+ Show more